TL3843BD-8

TL384XB TI | Alldatasheet

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D (SOIC) OR P (PDIP) PACKAGE (TOP VIEW) COMP NC VFB NC ISENSE NC RT/CT VREF NC V CC VC OUTPUT GND POWER GROUND D (SOIC) PACKAGE (TOP VIEW) NC − No internal connection DESCRIPTION/ORDERING INFORMATION TL284xB TL384xB HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS SLVS610A AUGUST 2006 REVISED SEPTEMBER 2006 Low Start-Up Current <0.5 mA) Trimmed Oscillator Discharge Current Current Mode Operation to 500 kHz Automatic Feed-Forward Compensation Latching PWM for Cycle-by-Cycle Current Limiting Internally Trimmed Reference With Undervoltage Lockout High-Current Totem-Pole Output Undervoltage Lockout With Hysteresis Double-Pulse Suppression The TL284xB and TL384xB series of control integrated circuits provide the schemes, with a minimum number of external components. Internally implemented circuits include an undervoltage lockout (UVLO) and a precision reference that is trimmed for accuracy at the error amplifier input. Other internal circuits include logic to ensure latched operation, a pulse-width modulation (PWM) comparator that also provides current-limit control, and a totem-pole output stage designed to source or sink high-peak current. The output stage, suitable for driving N-channel MOSFETs, is low when it is in the off state. The TL284xB and TL384xB series are pin compatible with the standard TL284x and TL384x with the following improvements. The start-up current is specified to be 0.5 mA (max), while the oscillator discharge current is trimmed to 8.3 mA (typ). In addition, during undervoltage lockout conditions, the output has a maximum saturation voltage of 1.2 V while sinking mA CC V). Major differences between members of these series are the UVLO thresholds and maximum duty-cycle ranges. Typical UVLO thresholds of V (on) and V (off) on the TLx842B and TLx844B devices make them ideally suited to off-line applications. The corresponding typical thresholds for the TLx843B and TLx845B devices are 8.4 V (on) and 7.6 V (off). The TLx842B and TLx843B devices can operate to duty cycles approaching 100%. A duty-cycle range of to 50% is obtained by the TLx844B and TLx845B by the addition of an internal toggle flip-flop, which blanks the output off every other clock cycle.The TL284xB-series devices are characterized for operation from C to The TL384xB-series devices are characterized for operation from C to Please be aware that an important notice concerning availability, standard warranty, and use in critical

applications

sheet. PRODUCTION DATA information is current as of publication date. Copyright 2006, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.

www.ti.com TL284xB TL384xB HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS SLVS610A AUGUST 2006 REVISED SEPTEMBER 2006 ORDERING INFORMATION T A PACKAGE (1) ORDERABLE PART NUMBER TOP-SIDE MARKING TL2842BP TL2842BP TL2843BP TL2843BP PDIP P Tube of TL2844BP TL2844BP TL2845BP TL2845BP Tube of TL2842BD-8 2842B Reel of 2500 TL2842BDR-8 Tube of TL2843BD-8 2843B Reel of 2500 TL2843BDR-8 SOIC D pin) Tube of TL2844BD-8 2844B Reel of 2500 TL2844BDR-8 C to C Tube of TL2845BD-8 2845B Reel of 2500 TL2845BDR-8 Tube of TL2842BD TL2842B Reel of 2500 TL2842BDR Tube of TL2843BD TL2843B Reel of 2500 TL2843BDR SOIC D (14 pin) Tube of TL2844BD TL2844B Reel of 2500 TL2844BDR Tube of TL2845BD TL2845B Reel of 2500 TL2845BDR TL3842BP TL3842BP TL3843BP TL3843BP PDIP P Tube of TL3844BP TL3844BP TL3845BP TL3845BP Tube of TL3842BD-8 3842B Reel of 2500 TL3842BDR-8 Tube of TL3843BD-8 3843B Reel of 2500 TL3843BDR-8 SOIC D pin) Tube of TL3844BD-8 3844B Reel of 2500 TL3844BDR-8 C to C Tube of TL3845BD-8 3845B Reel of 2500 TL3845BDR-8 Tube of TL3842BD TL3842B Reel of 2500 TL3842BDR Tube of TL3843BD TL3843B Reel of 2500 TL3843BDR SOIC D (14 pin) Tube of TL3844BD TL3844B Reel of 2500 TL3844BDR Tube of TL3845BD TL3845B Reel of 2500 TL3845BDR (1) Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. Submit Documentation Feedback

www.ti.com Internal Bias VREF Good Logic OSC Error Amplifier PWM Latch Current- Sense Comparator

34 V NOM

S R T 5-V VREF 2.5 V TL284xB TL384xB HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS SLVS610A AUGUST 2006 REVISED SEPTEMBER 2006 FUNCTIONAL BLOCK DIAGRAM Pin numbers shown are for the 8-pin D package. Submit Documentation Feedback

www.ti.com Absolute Maximum Ratings (1) (2) Recommended Operating Conditions TL284xB TL384xB HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS SLVS610A AUGUST 2006 REVISED SEPTEMBER 2006 over operating free-air temperature range (unless otherwise noted) MIN MAX UNIT Low impedance source V CC Supply voltage V Self I CC mA limiting V I Analog input voltage range VFB and I SENSE 0.3 6.3 V I CC Supply current mA I O Output current A I O(sink) Error amplifier output sink current mA pin D package θ JA Package thermal impedance (3) (4) pin C/W P package Output energy Capacitive load µ J T J Virtual junction temperature 150 C T stg Storage temperature range 150 C T lead Lead temperature Soldering, s 300 C (1) Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. (2) All voltages are with respect to the device GND terminal. (3) Maximum power dissipation is a function of T J (max), θ JA and T A The maximum allowable power dissipation at any allowable ambient temperature is P D J (max) T A θ JA Operating at the absolute maximum T J of 150 C can impact reliability. (4) The package thermal impedance is calculated in accordance with JESD 51-7. MIN NOM MAX UNIT V CC V CC Supply voltage V VC (1) R T T 5.5 V I Input voltage V VFB and I SENSE 5.5 OUTPUT V O Output voltage V POWER GROUND (1) 0.1 I CC Supply current, externally limited mA I O Average output current 200 mA I O(ref) Reference output current mA f osc Oscillator frequency 100 500 kHz TL284xB T J Operating free-air temperature C TL384xB (1) The recommended voltages for VC and POWER GROUND apply only to the 14-pin D package. Submit Documentation Feedback

www.ti.com Reference Section Electrical Characteristics Oscillator Section (1) Electrical Characteristics TL284xB TL384xB HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS SLVS610A AUGUST 2006 REVISED SEPTEMBER 2006 V CC V (1) R T k Ω C T 3.3 nF, over recommended operating free-air temperature range (unless otherwise specified) TL284xB TL384xB PARAMETER TEST CONDITIONS UNIT MIN TYP (2) MAX MIN TYP (2) MAX Output voltage I O mA, T J C 4.95 5.05 4.9 5.1 V Line regulation V CC V to V mV Load regulation I O mA to mA mV Average temperature 0.2 0.4 0.2 0.4 mV/ C coefficient of output voltage Output voltage, worst-case V CC V to 4.9 5.1 4.82 5.18 V variation I O mA to mA Output noise voltage f Hz to kHz, T J C µ V Output-voltage long-term drift After 1000 h at T J C mV Short-circuit output current 100 180 100 180 mA (1) Adjust V CC above the start threshold before setting it to (2) All typical values are at T J V CC V (2) R T k Ω C T 3.3 nF, over recommended operating free-air temperature range (unless otherwise specified) TL284xB TL384xB PARAMETER TEST CONDITIONS UNIT MIN TYP (3) MAX MIN TYP (3) MAX T J R T k Ω C T nF, Min 225 kHz, Initial accuracy kHz Max 275 kHz T J Full range Voltage stability V CC V to V 0.2 0.2 Temperature stability Amplitude Peak to peak 1.7 1.7 V T J R T T V 7.8 8.3 8.8 7.8 8.3 8.8 Discharge current mA R T T V 7.5 8.8 7.6 8.8 (1) Output frequency equals oscillator frequency for the TL3842B and TL3843B. Output frequency is one-half the oscillator frequency for the TL3844B and TL3845B. (2) Adjust V CC above the start threshold before setting it to (3) All typical values are at T J Submit Documentation Feedback

www.ti.com Error-Amplifier Section Electrical Characteristics Current-Sense Section Electrical Characteristics TL284xB TL384xB HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS SLVS610A AUGUST 2006 REVISED SEPTEMBER 2006 V CC V (1) R T k Ω C T 3.3 nF, over recommended operating free-air temperature range (unless otherwise specified) TL284xB TL384xB PARAMETER TEST CONDITIONS UNIT MIN TYP (2) MAX MIN TYP (2) MAX Feedback input voltage COMP 2.5 V 2.45 2.5 2.55 2.42 2.5 2.58 V Input bias current 0.3 0.3 µ A Open-loop voltage V O V to V dB amplification Gain-bandwidth product 0.7 0.7 MHz Supply-voltage rejection ratio V CC V to V dB Output sink current VFB 2.7 COMP 1.1 V mA Output source current VFB 2.3 COMP V 0.5 0.8 0.5 0.8 mA VFB 2.3 High-level output voltage V R L k Ω to GND VFB 2.7 Low-level output voltage 0.7 1.1 0.7 1.1 V R L k Ω to GND (1) Adjust V CC above the start threshold before setting it to (2) All typical values are at T J V CC V (1) R T k Ω C T 3.3 nF, over recommended operating free-air temperature range (unless otherwise specified) TL284xB TL384xB PARAMETER TEST CONDITIONS UNIT MIN TYP (2) MAX MIN TYP (2) MAX Voltage amplification (3) (4) 2.85 3.15 2.85 3.15 V/V Current-sense comparator COMP V 0.9 1.1 0.9 1.1 V threshold (3) Supply-voltage rejection V CC V to V dB ratio (3) Input bias current µ A Delay time to output VFB V to V 150 300 150 300 ns (1) Adjust V CC above the start threshold before setting it to (2) All typical values are at T J (3) Measured at the trip point of the latch, with VFB at (4) Measured between I SENSE and COMP, with the input changing from V to 0.8 Submit Documentation Feedback

www.ti.com Output Section Electrical Characteristics Undervoltage-Lockout Section Electrical Characteristics Pulse-Width Modulator Section Electrical Characteristics Supply Voltage Electrical Characteristics TL284xB TL384xB HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS SLVS610A AUGUST 2006 REVISED SEPTEMBER 2006 V CC V (1) R T k Ω C T 3.3 nF, over recommended operating free-air temperature range (unless otherwise specified) TL284xB TL384xB PARAMETER TEST CONDITIONS UNIT MIN TYP (2) MAX MIN TYP (2) MAX I OH mA 13.5 13.5 High-level output voltage V I OH 200 mA 13.5 13.5 I OL mA 0.1 0.4 0.1 0.4 Low-level output voltage V I OL 200 mA 1.5 2.2 1.5 2.2 Rise time C L nF, T J C 150 150 ns Fall time C L nF, T J C 150 150 ns UVLO saturation V CC I OL mA 0.7 1.2 0.7 1.2 V (1) Adjust V CC above the start threshold before setting it to (2) All typical values are at T J V CC V (1) R T k Ω C T 3.3 nF, over recommended operating free-air temperature range (unless otherwise specified) TL284xB TL384xB PARAMETER TEST CONDITIONS UNIT MIN TYP (2) MAX MIN TYP (2) MAX TLx842B, TLx844B 14.5 17.5 Start threshold voltage V TLx843B, TLx845B 7.8 8.4 7.8 8.4 TLx842B, TLx844B 8.5 11.5 Minimum operating voltage V after start-up TLx843B, TLx845B 7.6 8.2 7.6 8.2 (1) Adjust V CC above the start threshold before setting it to (2) All typical values are at T J V CC V (1) R T k Ω C T 3.3 nF, over recommended operating free-air temperature range (unless otherwise specified) TL284xB TL384xB PARAMETER TEST CONDITIONS UNIT MIN TYP (2) MAX MIN TYP (2) MAX TL3842B, TL3843B 100 100 Maximum duty cycle TL3844B, TL3845B Minimum duty cycle (1) Adjust V CC above the start threshold before setting it to (2) All typical values are at T J V CC V (1) R T k Ω C T 3.3 nF, over recommended operating free-air temperature range (unless otherwise specified) TL284xB TL384xB PARAMETER TEST CONDITIONS UNIT MIN TYP (2) MAX MIN TYP (2) MAX Start-up current 0.3 0.5 0.3 0.5 mA Operating supply current VFB and I SENSE at V mA Limiting voltage I CC mA V (1) Adjust V CC above the start threshold before setting it to (2) All typical values are at T J Submit Documentation Feedback

www.ti.com TYPICAL CHARACTERISTICS -20 100 f – Frequency – Hz A VOL – Open-Loop Voltage Gain – dB -100 -50 100 150 200 Phase Margin – deg VCC = 15 V R L = 100 kX TA = 25° C Phase Gain kΩ 10 100 1k 10k 100k 1M 10M 0 5 10 15 20 25 30 35 40 VCC – Supply Voltage – V ICC – Supply Current – mA TL2845 TL2842 0.2 0.4 0.6 0.8 1.2 0 1 2 3 4 5 6 7 8 VO – Error Amplifier Output Voltage – V Vth – Current-Sense Input Threshold – V VIN = 15 V TA = 125° C TA = 25° C TA = -55° C 7.4 7.6 7.8 8.2 8.4 8.6 8.8 9.2 -55 -35 -15 5 25 45 65 85 105 125 145 TA – Temperature – ° C Idisharge – Oscillator Discharge Current – mA VIN = 15 V VOSC = 2 V TL284xB TL384xB HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS SLVS610A AUGUST 2006 REVISED SEPTEMBER 2006 ERROR AMPLIFIER OPEN-LOOP SUPPLY CURRENT GAIN AND PHASE vs vs SUPPLY VOLTAGE FREQUENCY CURRENT-SENSE INPUT THRESHOLD OSCILLATOR DISCHARGE CURRENT vs vs ERROR AMPLIFIER OUTPUT VOLTAGE TEMPERATURE Submit Documentation Feedback

www.ti.com -60 -50 -40 -30 -20 -10 0 20 40 60 80 100 120 140 160 Isrc – Source Current – mA Reference Voltage Delta – mV TA = -40° C TA = 25° C TA = 125° C 4.8 4.85 4.9 4.95 5.05 5.1 5.15 5.2 -55 -30 -5 20 45 70 95 120 145 TA – Temperature – ° C Vref – Reference Voltage – V 100 120 140 160 180 -55 -30 -5 20 45 70 95 120 145 TA – Temperature – ° C ISC – Short-Circuit Current – mA VIN = 15 V 0 100 200 300 400 500 600 700 800 IO – Output Load Current – mA Sink Saturation Voltage – V -10 Source Saturation Sink Saturation TA = 25° C TA = -55° C TA = -55° C TA = 25° C TL284xB TL384xB HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS SLVS610A AUGUST 2006 REVISED SEPTEMBER 2006 TYPICAL CHARACTERISTICS (continued) REFERENCE VOLTAGE REFERENCE VOLTAGE vs vs SOURCE CURRENT TEMPERATURE REFERENCE SHORT-CIRCUIT CURRENT OUTPUT SATURATION VOLTAGE vs vs TEMPERATURE LOAD CURRENT Submit Documentation Feedback

www.ti.com 100 0.1 1 10 R T – Timing Resistor – k€ D max – Maximum Duty Cycle – % VCC = 15 V C T = 3.3 nF TA = 25° C kΩ TL284xB TL384xB HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS SLVS610A AUGUST 2006 REVISED SEPTEMBER 2006 TYPICAL CHARACTERISTICS (continued) MAXIMUM OUTPUT DUTY CYCLE vs TIMING RESISTOR OUTPUT WAVEFORM Submit Documentation Feedback

www.ti.com APPLICATION INFORMATION Zi Zf VFB COMP 2.5 V 0.5 mAError Amplifier R S C f R f Error Amplifier R 1 V Current-Sense Comparator IS (see Note A) + −ISENSE COMP GND C T R T VREF R T/CT GND TL284xB TL384xB HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS SLVS610A AUGUST 2006 REVISED SEPTEMBER 2006 The error-amplifier configuation circuit is shown in Figure Error amplifier can source or sink up to 0.5 mA. Figure Error-Amplifier Configuration The current-sense circuit is shown in Figure Peak current S is determined by the formula: I S(max) V/R S A small RC filter formed by resistor R f and capacitor C f may be required to suppress switch transients. Figure Current-Sense Circuit The oscillator frequency is set using the circuit shown in Figure The frequency is calculated as: f R T C T For R T k Ω f 1.72 R T C T Figure Oscillator Section Submit Documentation Feedback

www.ti.com TIMING RESISTANCE vs FREQUENCY W 100 1k 10k 100k 1M f − Frequency − Hz R T− Timing Resistance − k 100 VCC = 15 V TA = 25°C C T = 22 nF C T = 47 nF C T = 100 nF C T = 10 nF C T = 4.7 nF C T = 22 nF C T = 1 nF DEAD TIME vs TIMING CAP ACITANCE sm 100401040 C T − Timing Capacitance − nF 100 0.4

0.1 Dead Time −

VCC = 15 V R T ≥ 5 kW TA = 25°C Open-Loop Laboratory Test Fixture 2N2222 4.7 kΩ 1-kΩ Error Amplifier Adjust 4.7 kΩ 5 kΩ ISENSE Adjust R T 100 kΩ VCC 0.1 µF 0.1 µF REF VCC OUTPUT GND 1 kΩ , 1 W A C T TL284xB TL384xB ISENSE VREF R T/CT VFB COMP OUTPUT GND TL284xB TL384xB HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS SLVS610A AUGUST 2006 REVISED SEPTEMBER 2006 APPLICATION INFORMATION (continued) In the open-loop laboratory test fixture (see Figure high peak currents associated with loads necessitate careful grounding techniques. Timing and bypass capacitors should be connected close to the GND terminal in a single-point ground. The transistor and 5-k Ω potentiometer sample the oscillator waveform and apply an adjustable ramp to the I SENSE terminal. Figure Open-Loop Laboratory Test Fixture Submit Documentation Feedback

www.ti.com Shutdown Technique 330 Ω 1 kΩ 500 Ω To Current-Sense Resistor Shutdown Shutdown COMP VREF ISENSE R T0.1 µF C T ISENSE R SENSE C VREF R T/CT ISENSE TL284xB TL384xB HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS SLVS610A AUGUST 2006 REVISED SEPTEMBER 2006 APPLICATION INFORMATION (continued) The PWM controller (see Figure can be shut down by two methods: either raise the voltage at I SENSE above V or pull the COMP terminal below a voltage two diode drops above ground. Either method causes the output of the PWM comparator to be high (refer to block diagram). The PWM latch is reset dominant so that the output remains low until the next clock cycle after the shutdown condition at the COMP or I SENSE terminal is removed. In one example, an externally latched shutdown can be accomplished by adding an SCR that resets by cycling V CC below the lower UVLO threshold. At this point, the reference turns off, allowing the SCR to reset. Figure Shutdown Techniques A fraction of the oscillator ramp can be summed resistively with the current-sense signal to provide slope compensation for converters requiring duty cycles over 50% (see Figure Note that capacitor C forms a filter with to suppress the leading-edge switch spikes. Figure Slope Compensation Submit Documentation Feedback

Orderable Device Status(1) Package Type Package Drawing Pins Package Qty Eco Plan(2) Lead/Ball FinishMSL Peak Temp (3) TL2842BD ACTIVE SOIC D 14 50 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL2842BDG4-8 ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL2842BDR ACTIVE SOIC D 14 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL2842BDRG4-8 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL2842BP ACTIVE PDIP P 8 50 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type TL2842BPE4 ACTIVE PDIP P 8 50 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type TL2843BD ACTIVE SOIC D 14 50 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL2843BD-8 ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL2843BDG4 ACTIVE SOIC D 14 50 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL2843BDG4-8 ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL2843BDR ACTIVE SOIC D 14 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL2843BDR-8 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL2843BDRG4 ACTIVE SOIC D 14 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL2843BDRG4-8 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL2843BP ACTIVE PDIP P 8 50 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type TL2843BPG4 ACTIVE PDIP P 8 TBD Call TI Call TI TL2844BD ACTIVE SOIC D 14 50 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL2844BD-8 ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL2844BDG4 ACTIVE SOIC D 14 50 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL2844BDG4-8 ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL2844BDR ACTIVE SOIC D 14 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL2844BDR-8 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL2844BDRG4 ACTIVE SOIC D 14 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL2844BDRG4-8 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL2844BP ACTIVE PDIP P 8 50 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type PACKAGE OPTION ADDENDUM www.ti.com 6-Dec-2006 Addendum-Page 1

Orderable Device Status(1) Package Type Package Drawing Pins Package Qty Eco Plan(2) Lead/Ball FinishMSL Peak Temp (3) TL2844BPE4 ACTIVE PDIP P 8 50 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type TL2845BD ACTIVE SOIC D 14 50 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL2845BD-8 ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL2845BDG4 ACTIVE SOIC D 14 50 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL2845BDR ACTIVE SOIC D 14 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL2845BDR-8 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL2845BDRG4 ACTIVE SOIC D 14 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL2845BP ACTIVE PDIP P 8 50 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type TL2845BPE4 ACTIVE PDIP P 8 50 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type TL3842BD ACTIVE SOIC D 14 50 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL3842BD-8 ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL3842BDG4-8 ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL3842BDR ACTIVE SOIC D 14 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL3842BDR-8 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL3842BDRG4 ACTIVE SOIC D 14 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL3842BDRG4-8 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL3842BP ACTIVE PDIP P 8 50 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type TL3842BPE4 ACTIVE PDIP P 8 50 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type TL3843BD ACTIVE SOIC D 14 50 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL3843BD-8 ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL3843BDG4 ACTIVE SOIC D 14 50 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL3843BDG4-8 ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL3843BDR ACTIVE SOIC D 14 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL3843BDRG4 ACTIVE SOIC D 14 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL3843BP ACTIVE PDIP P 8 50 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type TL3843BPE4 ACTIVE PDIP P 8 50 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type PACKAGE OPTION ADDENDUM www.ti.com 6-Dec-2006 Addendum-Page 2

Orderable Device Status(1) Package Type Package Drawing Pins Package Qty Eco Plan(2) Lead/Ball FinishMSL Peak Temp (3) TL3844BD ACTIVE SOIC D 14 50 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL3844BD-8 ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL3844BDG4 ACTIVE SOIC D 14 50 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL3844BDG4-8 ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL3844BDR-8 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL3844BDRG4 ACTIVE SOIC D 14 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL3844BDRG4-8 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL3844BP ACTIVE PDIP P 8 50 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type TL3844BPE4 ACTIVE PDIP P 8 50 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type TL3845BD ACTIVE SOIC D 14 50 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL3845BD-8 ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL3845BDG4 ACTIVE SOIC D 14 50 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL3845BDG4-8 ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL3845BDR ACTIVE SOIC D 14 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL3845BDR-8 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL3845BDRG4 ACTIVE SOIC D 14 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL3845BDRG4-8 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL3845BP ACTIVE PDIP P 8 50 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type TL3845BPE4 ACTIVE PDIP P 8 50 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type (1)The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2)Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontentfor the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS):TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Pb-Free (RoHS Exempt):This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and PACKAGE OPTION ADDENDUM www.ti.com 6-Dec-2006 Addendum-Page 3

package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Green (RoHS & no Sb/Br):TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release. In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis. PACKAGE OPTION ADDENDUM www.ti.com 6-Dec-2006 Addendum-Page 4

MPDI001A – JANUARY 1995 – REVISED JUNE 1999 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 P (R-PDIP-T8) PLASTIC DUAL-IN-LINE 0.015 (0,38) Gage Plane 0.325 (8,26) 0.300 (7,62) 0.010 (0,25) NOM MAX 0.430 (10,92) 4040082/D 05/98 0.200 (5,08) MAX 0.125 (3,18) MIN 0.355 (9,02) 0.020 (0,51) MIN 0.070 (1,78) MAX 0.240 (6,10) 0.260 (6,60) 0.400 (10,60) 0.015 (0,38) 0.021 (0,53) Seating Plane M0.010 (0,25) 0.100 (2,54) NOTES: A. All linear dimensions are in inches (millimeters). B. This drawing is subject to change without notice. C. Falls within JEDEC MS-001 For the latest package information, go to http://www.ti.com/sc/docs/package/pkg_info.htm

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