IP431A

IP431A SEME-LAB | Alldatasheet

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Part J–Pack N–Pack D–Pack Amb. Temp. Number 8 Pin 8 Pin 8 Pin Range IP431AM 4 -55 to +125°C IP431AI 444 -40 to +85°C IP431AC 444 0 to +70°C PROGRAMMABLE PRECISION REFERENCE VKA Cathode To Anode Voltage IK Cathode Current Range IREF Reference Input Current Range PD Power Dissipation @ TA = 25°C D Package N Package J Package Derate Above 25°C P D Power Dissipation @ TC = 25°C D Package N Package J Package T J Maximum Operating Junction Temperature TA Operating Ambient Temperature Range TSTG Storage Temperature Range 37V -100 to +150mA -0.05 to +10mA 0.70W 1.10W 1.25W 6mW/°C 1.5W 3.3W 150°C See Table Above –65 to 150°C ABSOLUTE MAXIMUM RATINGS (Tcase = 25°C unless otherwise stated)

FEATURES

• VOLTAGE REFERENCE TOLERANCE ±1%
• PROGRAMMABLE OUTPUT VOLTAGE TO 36V
• EQUIVALENT FULL RANGE TEMPERATURE COEFFICIENT OF 30ppm/°C TYPICAL
• TEMPERATURE COMPENSATED FOR OPERATION OVER FULL RATED OPERATING TEMPERATURE RANGE
• SINK CURRENT CAPABILITY 1 TO 100 mA
• FAST TURN–ON RESPONSE
• LOW DYNAMIC OUTPUT IMPEDANCE (0.2WW typical)
• LOW OUTPUT NOISE VOLTAGE
• ALSO AVAILABLE IN TO–92 PACKAGE TOP VIEW CATHODE NC NC NC NC NC ANODE REF TOP VIEW CATHODE ANODE NC NC ANODE REF J Package – 8 Pin Ceramic DIP N Package – 8 Pin Plastic DIP D Package – 8 Pin Plastic (150) SOIC * Note that the SOIC package used for the IP431A has a modified lead frame to increase power dissipation capability when appropriately mounted on a PCB. Note: To order, add the package identifier to the part number. eg. IP431AMJ IP431ACD

The IP431A circuit is a monolithic three terminal programmable shunt regulator diode. The voltage reference operates as a low temperature coefficient zener which is programmable between V REF (2.5V) and 36 volts using two external resistors. The device has a wide operating current range of 1 mA to 100mA and a typical dynamic impedance of 0.2W . Active output circuitry provides a very sharp turn-on characteristic making these devices excellent replacements for zener diodes in many applications. Being a shunt regulator it can be used as either a positive or negative voltage reference. CATHODE ANODE REF

2.5 VREF

VKA Cathode To Anode Voltage IK Cathode Current Range VREF to 36V 1.0 to 100mA RECOMMENDED OPERATING CONDITIONS * This test is not applicable to surface mount (D Package) devices. IP431AM Parameter Test Conditions Min. Typ. Max. Units VKA = VREF IK = 10mA T A = -55 to +125°C * VKA = VREF IK = 10mA T A = -55 to +125°C * IK = 10mA R1 = 10kW R2 = ¥ IK = 10mA T A = -55 to +125°C * R1 = 10kW R2 = ¥ IK = 10mA T A = -55 to +125°C * VKA = VREF VKA = 36V V REF = 0 VKA = VREF f £ 1kHz DIK = 1mA to 100mA DVKA = 10V to VREF DVKA = 36V to 10V VREF DVREF DVREF DVKA IREF DIREF IMIN IOFF |Zka| Reference Input Voltage (Figure 1) Reference Input Voltage Over Temperature Range 1 (Figure 1) Ratio of Reference Voltage Change to Change in Cathode to Anode Voltage (Figure 2) Reference Input Current (Figure 2) Reference Input Current Deviation Over Temperature Range (Figure 2) Minimum Cathode Current For Regulation (Figure 1) Off–State Cathode Current (Figure 3) Dynamic Impedance 2 (Figure 1) V mV mV/V mA mA mA nA W 2.47 2.495 2.52 2.426 2.564 15 44 0.5 1 3 1000 0.2 0.5 -1.5 -2.7 -0.7 -2 ELECTRICAL CHARACTERISTICS (TA = 25 °C unless otherwise stated)

Parameter Test Conditions Min. Typ. Max. Units VKA = VREF IK = 10mA T A = -40 to +85°C * VKA = VREF IK = 10mA T A = -40 to +85°C * IK = 10mA R1 = 10kW R2 = ¥ IK = 10mA T A = -40 to +85°C * R1 = 10kW R2 = ¥ IK = 10mA T A = -40 to +85°C * VKA = VREF VKA = 36V V REF = 0 VKA = VREF f £ 1kHz DIK = 1mA to 100mA DVKA = 10V to VREF DVKA = 36V to 10V VREF DVREF DVREF DVKA IREF DIREF IMIN IOFF |Zka| Reference Input Voltage (Figure 1) Reference Input Voltage Over Temperature Range 1 (Figure 1) Ratio of Reference Voltage Change to Change in Cathode to Anode Voltage (Figure 2) Reference Input Current (Figure 2) Reference Input Current Deviation Over Temperature Range (Figure 2) Minimum Cathode Current For Regulation (Figure 1) Off–State Cathode Current (Figure 3) Dynamic Impedance 2 (Figure 1) V mV mV/V mA mA mA nA W 2.47 2.495 2.52 2.44 2.55 73 0 6.5 0.8 2.5 0.5 1 3 1000 0.2 0.5 -1.5 -2.7 -0.7 -2 IP431AC Parameter Test Conditions Min. Typ. Max. Units VKA = VREF IK = 10mA T A = 0 to +70°C * VKA = VREF IK = 10mA T A = 0 to +70°C * IK = 10mA R1 = 10kW R2 = ¥ IK = 10mA T A = 0 to +70°C * R1 = 10kW R2 = ¥ IK = 10mA T A = 0 to +70°C * VKA = VREF VKA = 36V V REF = 0 VKA = VREF f £ 1kHz DIK = 1mA to 100mA DVKA = 10V to VREF DVKA = 36V to 10V VREF DVREF DVREF DVKA IREF DIREF IMIN IOFF |Zka| Reference Input Voltage (Figure 1) Reference Input Voltage Over Temperature Range 1 (Figure 1) Ratio of Reference Voltage Change to Change in Cathode to Anode Voltage (Figure 2) Reference Input Current (Figure 2) Reference Input Current Deviation Over Temperature Range (Figure 2) Minimum Cathode Current For Regulation (Figure 1) Off–State Cathode Current (Figure 3) Dynamic Impedance 2 (Figure 1) V mV mV/V mA mA mA nA W 2.47 2.495 2.52 2.453 2.537 31 7 5.2 0.4 1.2 0.5 1 3 1000 0.2 0.5 -1.5 -2.7 -0.7 -2 ELECTRICAL CHARACTERISTICS (TA = 25 °C unless otherwise stated) * This test is not applicable to surface mount (D Package) devices.

IOUT = R CL VREF CONSTANT CURRENT SOURCE TYPICAL APPLICATIONS V+ VOUT VREFVOUT = R2 R11+ SHUNT REGULATOR VREF VREF IP7805 IN COMMON OUTV+ VOUT = + 5VVOUT(min) VOUT = R2 R11+ OUTPUT CONTROL OF A THREE-TERMINAL FIXED REGULATOR VREFISINK V+ ISINK = R S R S CONSTANT CURRENT SINK VOUTV+ VREFVOUT = R2 R11+ HIGH CURRENT SHUNT REGULATOR VREF=+VOUT(min) VOUT = R2 R11+ V REF VBE VOUT SERIES PASS REGULATOR

=VOUT(trip) VREFR2 R11+ V+ VOUT TRIAC CROWBAR TYPICAL APPLICATIONS THERMAL CHARACTERISTICS =VOUT(trip) VREFR2 R11+ VOUTV+ THYRISTOR CROWBAR VOUTV+ VREFR2 R11+Lower Limit = VREFUpper Limit = 1+ R4 LED is ‘on’ when V+ is between the upper and lower limits. VOLTAGE MONITOR VIN VOUT = VREFVTH VIN VOUT REF> V REF< V V+ = 2.0 V SINGLE SUPPLY COMPARATOR WITH TEMPERATURE COMPENSATED THRESHOLD R qJA Thermal Resistance, Junction – Ambient D Package N Package J Package R qJC Thermal Resistance, Junction – Case D Package N Package J Package 178°C/W 114°C/W 100°C/W 83°C/W 41°C/W 38°C/W

TYPICAL PERFORMANCE CHARACTERISTICS CATHODE CURRENT vs CATHODE VOLTAGE REFERENCE INPUT VOLTAGE vs AMBIENT TEMPERATURE CATHODE CURRENT vs CATHODE VOLTAGE REFERENCE INPUT CURRENT vs AMBIENT TEMPERATURE CHANGE IN REFERENCE INPUT VOLTAGE vs AMBIENT TEMPERATURE OFF –STATE CATHODE CURRENT vs AMBIENT TEMPERATURE V CATHODE VOLTAGE (V)KA I CATHODE CURRENT (mA)K KAVINPUT KAV= V REF TA = 25˚C IK -100 -50 100 150 -2 -1 0 1 2 3 T AMBIENT TEMPERATURE (˚C)A V REFERENCE INPUT VOLTAGE (mV) REF KAVINPUT KAV= V REF IK = 10mA IK VREF -55 -25 0 25 75 100 125 50 2400 2420 2440 2460 2480 2500 2520 2540 2560 2580 2600 V REFERENCE INPUT VOLTAGE (mV) REF V CATHODE VOLTAGE (V)KA -32 -28 -24 -20 -16 -12 0 1 02 03 04 0 TA = 25˚C KAVINPUT IK REFI IK = 10mA VREFR2 V CATHODE VOLTAGE (V)KA I CATHODE CURRENT ( mA)K KAVINPUT KAV= V REF TA = 25˚C IK - 1 0123 -200 200 400 600 800 V REFERENCE INPUT VOLTAGE (mV) REF T AMBIENT TEMPERATURE (˚C)A IK = 10mA KAVINPUT IK kW REFI IK = 10mA 0.00 0.25 0.50 0.75 1.00 1.25 1.50 -55 -25 0 25 75 100 125 50 I OFF–STATE CATHODE CURRENT (nA) OFF T AMBIENT TEMPERATURE (˚C)A KAVINPUT KAV= 3 6 V IOFF = 0REFV -55 -25 0 25 75 100 125 50 0.01 0.1 100 1000