ACT3704NH-T | DigiCamel IC Datasheet

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ACT3704 ACTIVE-SEMI | Alldatasheet

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Innovative Products. Active Solutions. - 1 - www.active-semi.com Copyright © 2007 Active-Semi, Inc. ACT3704 TYPICAL APPLICATION CIRCUIT Rev2, 26-Jul-07 12V Linear-Mode Battery Charger for Li+/Li-polymer Cells

FEATURES

Internal High Voltage MOSFET
Up to 12V Input Voltage
±0.5% Output Voltage Accuracy
Charge Current Thermal Foldback
Programmable Termination Voltage
Programmable Fast Charge Current
Programmable Charging Timer
No Blocking Diode Required
Low Reverse Leakage
Preconditioning for Deeply Depleted Battery
Low Quiescent Current Standby Mode
Space-Saving, Thermally-Enhanced SOP- 8/EP, TDFN33-8

APPLICATIONS

Mobile Phone
Wireless Headsets
Portable Media Players
Cradle Chargers
Portable Devices GENERAL DESCRIPTION The ACT3704 is a complete linear charging solution for single cell Lithium Ion and Lithium Polymer bat- teries. It incorporates an internal 12V power MOS- FET for Constant-Current, Constant-Voltage control (CC/CV). The battery regulation voltage accuracy is ± 0.5% and can be set to either 4.1V or 4.2V. The charge current is programmed with an external resistor to a maximum of 1A to minimize total charge time. The reverse leakage current from the battery is less than 1µA if the input adaptor is disconnected or if there is a reverse battery connection. The ACT3704 is available in thermally-enhanced SOP-8/EP, and TDFN33-8 packages to accommodate high charge current operation and minimize total charging time.

ORDERING INFORMATION

PART NUMBER TEMPERATURE RANGE PACKAGE PINS PACKING ACT3704YH -40°C to 85°C SOP-8/EP 8 TUBE ACT3704YH-T -40°C to 85°C SOP-8/EP 8 TAPE & REEL ACT3704NH-T -40°C to 85°C TDFN33-8 8 TAPE & REEL PIN DESCRIPTIONS PIN NUMBER PIN NAME PIN DESCRIPTION 1 nEOC Open-Drain Charge Status Indicator. nEOC is a high voltage output and can with- stand up to 12V, allowing it to drive LEDs t hat are directly connected to IN or to a lower voltage supply. nEOC features an in ternal 7mA current limit, allowing this pin to directly drive an LED for a visual charge-status indicator. For a logic-level charge status indicator, simply connect a 10kΩ or greater pull-up resistor between nEOC and a suitable voltage supply. 2 ADJ Charge Termination Voltage Adjust. Connect ADJ to G to select 4.10V termination voltage or connect ADJ to IN to select 4.20V termination voltage. 3 IN Power Input. IN can be withstand operating voltages of up to 12V. Bypass to G with a 1µF or larger capacitor.

4 ISET

Charge Current Set. Program the maximum charge current by connecting a resis- tor (RISET) between ISET and G. See the Charge Current Programming section for more information. 5 TIMER Safety Timer program pin. Connect to capacitor C TIMER. 6 BAT Charge Battery Output. Connect this pin to the positive terminal of the battery. Bypass this pin as close as possible to IC with 1µF ceramic capacitor. 7 G Ground. 8 nSTAT Open-Drain Charge Status Indicator. nSTA T can withstand up to 12V, allowing it to drive LEDs that are directly connect ed to IN or to a lower voltage supply, nSTAT features an internal 7mA current limi t, allowing this pin to directly drive an LED for a visual charge-status indicator. For a logic-level charge status indicator, simply connect a 10k Ω or greater pullup resistor between nSTAT and a suitable voltage supply. EP EP Exposed Pad. The exposed thermal pad s hould be connected to board ground plane and G. The ground plane should include a large exposed copper pad under the package to connect the entire pad for thermal dissipation (see package out- line). PIN CONFIGURATION

ELECTRICAL CHARACTERISTICS

c: Do not exceed these limits to prevent damage to the device. Exposure to absolute maximum rati ng conditions for long periods m ay affect device reliability. (VIN = VTERM + 1V, VBAT = 3.6V, TA = 25°C, unless otherwise specified.) PARAMETER CONDITIONS MIN TYP MAX UNIT Input Supply Voltage, VIN 4.2 12 V ADJ = G 4.079 4.1 4.121 V TA = -40°C to 85°C 4.059 4.141 ADJ = IN 4.179 4.2 4.221 TA = -40°C to 85°C 4.158 4.242 Line Regulation V IN = VTERM + 1V to 12V, IBAT = 10mA 0.03 0.1 %/V Load Regulation V IN = VTERM + 1V, IBAT = 10mA to 250mA 0.05 0.1 % Precondition Threshold 2.55 2.75 2.95 V Precondition Threshold Hysteresis 125 mV Constant Current Adjust Range 100 1000 mA Fast Charge Constant Current V BAT = 3.8V, RISET = 50k 0.45 0.51 0.57 A Precondition Charge Current V BAT = 2.5V, RISET = 50k 51 mA End-of-Charge Threshold R ISET = 50k 51 mA Charge Restart Threshold V BAT Falling V TERM - 0.1 V PMOS On Resistance V BAT = 3.8V, IBAT = 100mA 0.7 1.2 Ω UVLO Threshold IN Rising 3.8 4.0 4.2 V UVLO Hysteresis IN Falling 1 V BAT Reserve Leakage Current Input float ing or charger disabled 0.4 4 µA IN Supply Current Charger Standby 500 800 µA IN Supply Current Charger Enable 0.7 2 mA ADJ Voltage Threshold 1.7 V Battery Termination Voltage, V TERM Thermal Regulation Threshold 120 °C PARAMETER VALUE UNIT IN, ADJ, nSTAT, nEOC to G -0.3 to 15 V BAT to G -0.3 to 7 V ISET, TIMER to G -0.3 to 6 V ISET, TIMER Current ±5 mA Junction to Ambient Thermal Resistance (θJA) SOP-8/EP 45 °C/W TDFN33-8 36.7 °C/W Maximum Power Dissipation SOP-8/EP 1.8 W TDFN33-8 2 W Maximum Junction Temperature 125 °C Storage Temperature -65 to 150 °C Lead Temperature (Soldering, 10 sec) 300 °C

Rev2, 26-Jul-07 Innovative Products. Active Solutions. - 4 - www.active-semi.com Copyright © 2007 Active-Semi, Inc. PARAMETER CONDITIONS MIN TYP MAX UNIT nSTAT, nEOC Outputs Sink Current V nSTAT = VnEOC = 2V 4 7 10 mA Output Low Voltage I SINK = 1mA 0.4 V Leakage Current V nSTAT = VnEOC = 12V 1 µA Charge Current Setting ISET Pin Voltage 1.15 1.20 1.25 V IBAT to ISET Current Ratio 22 kA/A Charge Timers TIMER Frequency TIMER Floating 0.8 1.5 2.2 kHz POR Start Delay 1 ms Transition Out of Preconditioning Delay 0.1 ms Current Rise Time Out of Preconditioning 300 µs Normal Safety Timer C TIMER = 2.2nF 0.5 hr Precondition Safety Timer C TIMER = 2.2nF 20 mins Total Safety Timer C TIMER = 2.2nF 1 hr Time to End of Charge C TIMER = 2.2nF 10 mins ELECTRICAL CHARACTERISTICS CONT’D (VIN = VTERM + 1V, VBAT = 3.6V, TA = 25°C, unless otherwise specified.)

Rev2, 26-Jul-07 Innovative Products. Active Solutions. - 5 - www.active-semi.com Copyright © 2007 Active-Semi, Inc. 1000 TYPICAL PERFORMANCE CHARACTERISTICS (VIN = 5V, TA = 25°C, unless otherwise specified.) 4.50 4.00 3.50 3.00 2.50 2.00 1.50 1.00 0.50 0.00 200 400 0 600 800 Battery Termination Voltage vs. Charge Current IBAT (mA) VTERM (V) 600 550 500 450 400 350 200 150 100 IBAT (mA) 300 250 VBAT (V) 4.0 2.5 1.5 Charge Current vs. Battery Termination Voltage 600 500 400 100 IBAT (mA) 300 200 VIN (V) 10.5 Charge Current vs. Supply Voltage 575 550 525 500 475 450 350 325 300 IBAT (mA) 425 400 375 3.00 VBAT (V) Charge Current vs. Battery Voltage 275 1000 900 800 700 600 500 200 100 IBAT (mA) 400 300 50 100 0 250 300 350 RISET (k) 150 Charge Current vs. RISET 200 4.300 4.275 4.250 4.225 4.200 4.125 VTERM (V) 4.175 4.150 VIN (V) 6.5 Battery Termination Voltage vs. Supply Voltage 7.0 7.5 ACT3704-001 ACT3704-002 ACT3704-004 ACT3704-003 ACT3704-005 ACT3704-006 VIN = 5V RISET = 27k ADJ = G VIN = 5V RISET = 47k ADJ = G VIN = 5V VBAT = 3.7V RISET = 47k VIN = 5V RISET = 47k ADJ = G VIN = 5V VBAT = 3.7V ADJ = G RISET = 47k IBAT = 100mA ADJ = IN 4.100 Thermal Regulation Circuitry Active

Rev2, 26-Jul-07 Innovative Products. Active Solutions. - 6 - www.active-semi.com Copyright © 2007 Active-Semi, Inc. TYPICAL PERFORMANCE CHARACTERISTICS CONT’D (VIN = 5V, TA = 25°C, unless otherwise specified.) Battery Termination Voltage vs. Temperature 4.120 4.110 4.090 Battery Termination Voltage VTERM (V) 4.100 50 75 Temperature (°C) 25 -25 Battery Termination Voltage vs. Temperature 550 530 510 470 IBAT (mA) 490 -20 0 -40 40 Temperature (°C) Charge Current vs. Ambient Temperature 450 2.85 2.83 2.81 2.73 Precondition Threshold Voltage (V) 2.79 -40 Temperature (°C) Precondition Threshold Voltage vs. Ambient Temperature 4.20 4.10 4.00 UVLO (V) 3.90 -15 -40 60 85 Temperature (°C) Undervoltage Lockout Voltage vs. Temperature 3.80 ACT3704-007 ACT3704-008 ACT3704-010 ACT3704-009 ACT3704-0011 ACT3704-0012 4.220 4.210 4.200 4.190 4.180 4.080 -50 80 60 2.75 2.77 -20 0 20 40 60 80 VIN = 5V RISET = 47k ADJ = G VIN = 5V ADJ = G VIN = 5V RISET = 47k ADJ = VIN Battery Termination Voltage VTERM (V) Temperature (°C) 50 75 25 -25 0 -50 85 2.70 2.71 -40 Internal Charge Timer Frequency vs. Temperature Temperature (°C) 1.275 1.175 1.025 Frequency (kHz) 1.075 1.325 1.000 -15 10 35 60 85 1.125 1.225 VIN = 7V VIN = 5V VIN = 5V ADJ = IN

Rev2, 26-Jul-07 Innovative Products. Active Solutions. - 7 - www.active-semi.com Copyright © 2007 Active-Semi, Inc. FUNCTIONAL BLOCK DIAGRAM 7mA nSTAT G BAT CVAMP CHARGE CONTROL OSCILLATOR nEOC TIMER ISET UVLO REG REF VREF = 1.20V Thermal Foldback TJ > 120°C BODY BAT CCAMP EOCCOMP IN 7mA ADJ ADJCTRL

Rev2, 26-Jul-07 Innovative Products. Active Solutions. - 8 - www.active-semi.com Copyright © 2007 Active-Semi, Inc. FUNCTIONAL DESCRIPTION The ACT3704 is an intelligent, stand-alone Con- stant-Current, Constant-V oltage control (CC/CV), linear-mode, single-cell charger for Lithium-Based cell chemistries. The device incorporates current and voltage sense circuitry, an internal 12V power MOSFET, a 120°C thermal-regulation loop that mini- mizes total charge time, a complete state-machine that implements charge safety features, and circuitry that eliminates the reverse-blocking diode required by conventional charger designs. The ACT3704 features an accurate charge termina- tion voltage, programmable fast-charge constant current, and a programmable charge safety timeout period. Other features include current-limited nSTAT and nEOC outputs that can directly drive LED indi- cators without external resistors or provide a logic- level status signal to the host microprocessor. CC/CV Regulation Loop At the core of the ACT3704 is a CC/CV regulation loop, which regulates either current or voltage as necessary to ensure fast and safe charging of the battery. In a normal charge cycle, this loop regulates the cur- rent to the value set by R ISET. Charging continues at this current until the battery voltage reaches the charge termination voltage. At this point the CV loop takes over, and charge current is allowed to de- crease as necessary to maintain charging at the charge termination voltage. Setting The Charge Termination Voltage The ACT3704 offers two pin-programmable battery termination voltages; connect ADJ to G to select a 4.10V termination voltage, connect ADJ to IN (or to a voltage greater than 1.4V) to select a 4.20V termi- nation voltage. Charge Current Programming The maximum charging current is programmed by an external resistor (R ISET) connected from ISET to Calculate RISET as follows: Where IBAT is Amps. The voltage at ISET is fixed at 1.20V, and the maxi- mum charge current at BAT is set by: The RISET values in Table 1 are standard 1%. Note that the actual charging current may be limited to a current that is lower than the programmed fast- charge current due to the ACT3704’s internal ther- mal-regulation loop. See the Thermal Regulation Loop section for more information. Thermal Regulation Loop The ACT3704 features an internal thermal regula- tion loop that reduces the charging current as nec- essary to ensure that t he die temperature does not rise beyond the thermal regulation threshold of 120°C. This feature protects the ACT3704 against excessive junction temperature and makes the ACT3704 more accommodating to aggressive ther- mal designs. Note, however, that attention to good thermal designs is required to achieve the fastest possible charge time by maximizing charge current. In order to account for the extended total charge time resulting from operation in thermal regulation mode, the charge timeout periods are extended proportionally to the reduction in charge current. In order to ensure a safe charge, the maximum time- out periods are limited to 2x the room temperature values. The conditions that cause the ACT3704 to reduce charge current in accordance to the internal thermal regulation loop can be approximated by calculating the power dissipated in the part. Most of the power dissipation is generated from the internal charge MOSFET (Q1 in the Functional Block Diagram). The power dissipation is calculated to be approxi- mately: Table 1: Charge Current Programming R ISET(kΩ) Charge Current (mA) 89 297 64 413 56 470 47 562 33 800 27 989 () ISETBAT R/V20.1Ωk22I ×= (2) () BATISET I/V20.1Ωk22R ×= (1) ( ) BATBATIND IV-VP ×= (3) PD is the power dissipated, V IN is the input supply voltage, VBAT is the battery voltage and I BAT is the charge current. The approximate ambient tempera-

Rev2, 26-Jul-07 Innovative Products. Active Solutions. - 9 - www.active-semi.com Copyright © 2007 Active-Semi, Inc. () JABATBATINA IV-V-C120T θ××°= C6.69TA °= () A/C72 C50 W/C453.4V-V5 C70-C120IBAT °=°× °°= mA694TA = (4) (5) (6) (7) Example: The ACT3704 is operating from a 5V wall adapter and is programmed to supply 700mA fast charge current to a discharged Li-Ion battery with a voltage of 3.4V. Assuming θ JA is 45°C/W, the ambi- ent temperature at which the device will begin to reduce the charge current is approximately: The ACT3704 can be used above 69.6°C ambient, but the charge current will be reduced from 700mA. The approximate current at a given ambient tem- perature can be approximated by: Using the previous example with an ambient tem- perature of 70°C, the charge current will be reduced to approximately: ACT3704 applications do not need to be designed for worst-case thermal conditions, since the part will automatically reduce powe r dissipation if the ther- mal regulation threshold of approximately 120°C is reached. However, in order to deliver maximum charge cur- rent under all conditions, it is critical that the ex- posed metal pad on the backside of the package exposed pad (EP) is soldered directly to the PC board ground. Correctly soldered to a double sided 1oz copper board, the ACT3704 has a thermal re- sistance of approximately 45°C/W with SOP8 and 36.7°C/W with TDFN33-8. Failure to make thermal contact between the exposed pad on the backside pf the package and the copper board will result in thermal resistances far greater than 45°C/W with SOP8 and 36.7°C/W with TDFN33-8. For example, a correctly soldered ACT3704 can deliver up to () JABATIN A BAT VV TC120I θ×− −°= JADA PC120T θ×−°= 1000mA to a battery from a 5V supply at 25°C. Without a good backside thermal connection, this number could drop to less than 500mA. State Machine Precondition State A new charging cycle begins with the PRECONDI- TION state, and operation continues in this state until VBAT exceeds the Precondition Threshold Volt- age of 2.8V. When operating in PRECON DITION state, the cell is charged at a reduced current given by: Which is 10% of the programmed maximum fast- charge constant current, IBAT. Once VBAT reaches the Precondition Threshold Volt- age the state machine jumps to the NORMAL state. If V BAT does not reach the Precondition Threshold Voltage before the Precondition Timeout period PRECONDITION) expires, then a damaged cell is de- tected and the state machine jumps to the TIME- OUT-FAULT State. The Precondition Timeout pe- riod is default to 20mins with an external 2.2nF C TIMER capacitor, or it can be increased with a larger value capacitor. See the Safely Timers section for more information. Normal State Normal state is made up of two operating modes, fast charge Constant-Current (CC) and Constant- Voltage (CV). In CC mode, the ACT3704 charges at the current programmed by R ISET (see the Charge Current Pro- gramming section for more information). During a normal charge cycle fast-charge continues in CC mode until VBAT reaches the charge termination volt- age (VTERM), at which point the ACT3704 charges in CV mode. Charging continues in CV mode until the charge current drops to 10% of the programmed maximum charge current (I BAT), at which point the state machine jumps to the TOP-OFF state. If VBAT does not proceed out of the NORMAL state before the Normal Timeout period (TNORMAL) expires, then a damaged cell is detected and the state ma- chine jumps to the TIMEOUT-FAULT State. The Normal Timeout period is default to 30mins, or it can be increased with an external 2.2nF C TIMER capacitor or can be changed with a larger value external capacitor. See the Safety Times section for more information. ture at which the thermal regulation begins to pro- tect the IC is given by : (8) ( )ISETISETONPRECONDITI R/V200.2I ×=

Rev2, 26-Jul-07 Innovative Products. Active Solutions. - 10 - www.active-semi.com Copyright © 2007 Active-Semi, Inc. Top-Off State In the TOP-OFF state, the cell is charged in con- stant-voltage (CV) mode, with the charge current limited by the internal chemistry of the cell, decreas- ing as charging continues. If the ACT3704 state machine does not complete a charging cycle before the TOP-OFF Timeout period TOPOFF) expires, then a damaged cell is detected and the state machine jumps to the TIMEOUT- FAULT State. The TOP-OFF Timeout period is default to 60mins with a 2.2nF C TIMER capacitor, or it can be increased with a larger value external capacitor. See the Safety Timers section for more information. In TOP-OFF state, nSTAT indicates charge com- plete but charge current still continues. After another delay of 60mins, then charging stops and charge current becomes zero. When the battery voltage drops below the charge restart voltage, the charging process will start again. End of Charge State In the End of Charge (EOC) state, the ACT3704 presents a high-impedance to the battery, allowing the cell to “relax” and minimize battery leakage cur- rent. The ACT3704 continues to monitor the cell voltage, however, so that it can reinitiate charging cycles as necessary to ensure that the cell remains fully charged. Charge Restart Under normal operation, t he state machine initiates a new charging cycle by jumping to the NORMAL CHARGE state when V BAT drops below the Charge Termination Threshold by more than the Charge Re- start Threshold of 100mV (typ). Timeout-Fault State In TIMEOUT-FAULT stat e, both nSTAT and nEOC indicators are OFF, or high-Z. Charge and EOC Status Outputs nSTAT and nEOC are open-drain outputs that sink current when asserted and are high-Z otherwise. For more information regarding the state of nSTAT and nEOC throughout the entire charging cycle, see Ta- ble 3. These outputs have internal 7mA current lim- its, and are capable of direct ly driving LEDs, without the need of current-limiting resistors or other exter- nal circuitry, for a visual charge-status indication. To drive an LED, simply co nnect the LED between each pin and an appropriate supply (typically V IN). For a logic-level indication, simply connect a resistor from each output to an appropriate voltage supply. Reverse Battery & Shutdown The ACT3704 includes internal circuitry that elimi- nates the need for series blocking diodes, reducing solution size and cost as well as dropout voltage relative to conventional battery chargers. When VIN goes below the ACT3704’s under voltage-lockout (UVLO) voltage, or when V IN drops below V BAT, the ACT3704 automatically goes into SUSPEND mode and reconfigures its power switch to minimize cur- rent drain from the battery. Safety Timers The ACT3704 has several internal charge safety timers, for each of the PRECONDITION and NOR- MAL charge states as well as TOPOFF timeout pe- riod. If any of these timers expire before charge suc- cessfully proceeds through the associated state, the ACT3704 enters the TIMEOUT-FAULT state. The TIMEOUT-FAULT state can only be reset by power- cycling the ACT3704. Each of these timers are internally set according to the following ratios: All the timers could be set by an external capacitor by (C TIMER in nF) where TO is given by: When operating in thermal regulation mode the timeout periods are extended in order to compen- sate for the effect of t he reduced charging current on total charge time. In order to ensure a safe charge, the maximum timeout periods are limited to 2x the room temperature values. OONPRECONDITI T1T ×= ONORMAL T5.1T ×= OTOTAL T3T ×= %15C9T TIMERO ±×= (9) (10) (11) (12)

Rev2, 26-Jul-07 Innovative Products. Active Solutions. - 11 - www.active-semi.com Copyright © 2007 Active-Semi, Inc. Table 2: Safety Timer Settings CTIMER (nF) TPRECONDITION (minutes) TNORMAL (minutes) TTOTAL (minutes) 2.2 20 30 60 3.3 30 45 90 6 60 90 180 10 90 120 270 30 210 315 630 STATE DIAGRAM ANY STATE SUSPEND PRECONDITION NORMAL TOP OFF END OF CHARGE VIN < 4.0V VIN > 4.0V VBAT < 2.7V VBAT < VTERM -0 . 1 V Time > TTOTAL VBAT = VREG Time > TNORMAL VBAT > 2.8V Time > TPRECONDITION TIMEOUT-FAULT VBAT < VREG IBAT < 10% ICHRG and T > TEOC

Rev2, 26-Jul-07 Innovative Products. Active Solutions. - 12 - www.active-semi.com Copyright © 2007 Active-Semi, Inc. STATUS AND EOC INDICATORS Table 3: nSTAT and nEOC Indicator States STATE nSTAT nEOC SHUTDOWN OFF OFF PRECONDITION ON OFF NORMAL ON OFF TOPOFF ON OFF END OF CHARGE OFF ON TIMEOUT FAULT OFF OFF DELAY TIME TO EOC OFF ON Figure 1: Typical Li+ Charge Profile and ACT3704 Charge States VTERM IBAT VPRECONDITION IPRECONDITION, IEOC A B C D 4.20V 510mA 2.75V 51mA A: PRECONDITION State B: NORMAL State C: TOP-OFF State D: END OF CHARGE State Current Voltage STATE TEOC

Rev2, 26-Jul-07 Innovative Products. Active Solutions. - 14 - www.active-semi.com Copyright © 2007 Active-Semi, Inc. SYMBOL DIMENSION IN MILLIMETERS DIMENSION IN INCHES MIN MAX MIN MAX A 1.350 1.750 0.053 0.069 A1 0.050 0.150 0.002 0.006 A2 1.350 1.550 0.053 0.061 b 0.330 0.510 0.013 0.020 c 0.170 0.250 0.007 0.010 D 4.700 5.100 0.185 0.200 D1 3.202 3.402 0.126 0.134 E 3.800 4.000 0.150 0.157 E1 5.800 6.200 0.228 0.244 E2 2.313 2.513 0.091 0.099 e 1.270 TYP 0.050 TYP L 0.400 1.270 0.016 0.050 θ 0° 8° 0° 8° PACKAGE OUTLINE SOP-8/EP PACKAGE OUTLINE AND DIMENSIONS b D e

Rev2, 26-Jul-07 Innovative Products. Active Solutions. - 15 - www.active-semi.com Copyright © 2007 Active-Semi, Inc. PACKAGE OUTLINE TDFN33-8 PACKAGE OUTLINE AND DIMENSIONS SYMBOL DIMENSION IN MILLIMETERS DIMENSION IN INCHES MIN MAX MIN MAX A 0.700 0.800 0.028 0.031 A1 0.000 0.050 0.000 0.002 A3 0.153 0.006 D 2.900 3.100 0.114 0.122 E 2.900 0.114 D2 2.200 0.087 E2 0.055 b 0.200 0.320 0.008 0.013 e 0.650 TYP 0.026 TYP L 0.375 0.575 0.015 0.023 1.400 3.100 0.122 0.253 0.010 2.400 1.600 0.094 0.063

Product Information

ACT3704NH-T specifications and overview.

Summary

12V Linear-Mode Battery Charger for Li+/Li-polymer Cells Rev2, 26-Jul-07

Description

12V Linear-Mode Battery Charger for Li+/Li-polymer Cells Rev2, 26-Jul-07

Source title ACT3704NH-T Datasheet(PDF) - Active-Semi, Inc

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