fa 5 es fers BHA A NG HEL BR ZS i] NanJing Top Power ASIC Corp.
TP4056 1A Standalone Linear Li-lon Battery Charger with Thermal Regulation in SOP-8
DESCRIPTION
The TP4056 is a complete constant-current/constant-voltage linear charger for single cell lithium-ion batteries. Its SOP package and low external component count make the TP 4056 ideally suited for portable applications. Furthermore, the TP 4056 can work within USB and wall adapter.
No blocking diode is required due to the internal PMOSFET architecture and have prevent to negative Charge Current Circuit. Thermal feedback regulates the charge current to limit the die temperature during high power operation or high ambient temperature. The charge voltage is fixed at 4.2V, and the charge current can be programmed externally with a single resistor. The TP 4056 automatically terminates the charge cycle when the charge current drops to 1/10th the programmed value after the final float voltage is reached.
TP4056 Other features include current monitor, under voltage lockout, automatic recharge and two status pin to indicate charge termination and the presence of an input voltage.
FEATURES * Programmable Charge Current Up to 1000mA
ABSOLUTE MAXIMUM RATINGS + Input Supply Voltage(Vcc): -0.3V~8V * TEMP: -0.3V~10V
* No MOSFET, Sense Resistor or Blocking Diode Required
* Complete Linear Charger in Package for Single Cell Batteries
* Constant-Current/C onstant-Voltage
*CE: -0.3V~10V
* BAT Short-Circuit Duration: Continuous
* BAT Pin Current: 1200mA
*PROG Pin Current: 1200uA
* Maximum J unction Temperature: 145°C Operating Ambient Temperature R ange: -40
SOP-8 Lithium-lon
*Charges Single Cell Li-lon Batteries Directly C~85C from USB Port . * Lead Temp.(Soldering, 10sec): 260°C * Preset 4.2V Charge Voltage with 1.5% Accuracy APPLICATIONS
+ Automatic Recharge
* two Charge Status Output Pins
* C/10 Charge Termination
* 2.9V Trickle Charge Threshold (TP.4056)
* Soft-Start Limits Inrush Current
* Available Radiator in 8-Lead SOP Package,
* Cellular Telephones, PDAs, GPS * Charging Docks and Cradles + Digital Still Cameras, Portable Devices
+ USB Bus-Powered Chargers,Chargers
the Radiator need connect GND or Complete Charge Cycle (1000mAh impending Battery) PACKAGE/ORDER INFORMATION 4.50 ———-> CONSTANT 1200 VOLTAGE—} 4.25 E 1000 4.00 z & 800 3.75 2 & CONSTANT < 3 600 CURRENT 350 4 8 8B = 400 = = = 3.2 S SOP—8 200 FF fua= 130°C" “CHARGE 3.00 photo The o5C. TERMINATED | ~~, os ORDER PART NUMBER ©) 025 05 075 10 1.25 15 175 20 TP4056-42-SOP8-PP TIME (HOURS) PART MARKING TP4056
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seers BHA A NG HEL BR ZS i] NanJing Top Power ASIC Corp.
TEMP(Pin 1) :Temperature Sense Input Connecting TEMP pin to NTC thermistor’s output in Lithium ion battery pack. If TEMP pin’s voltage is below 45% or above 80% of supply voltage VIN for more than 0.15S, this means that battery’s temperature is too high or too low, charging is suspended. The temperature sense function can be disabled by grounding the TEMP pin. PROG(Pin 2): Constant Charge Current Setting and Charge Current Monitor Pin charge current is set by connecting a resistor Riset from this pin to GND. When in precharge mode, the ISET pin’s voltage is regulated to 0.2V. When in constant charge current mode, the ISET pin’s voltage is regulated to 2V.In all modes during charging, the voltage on ISET pin can be used to measure the charge current as follows: Voros (Verog=1V)
GND(Pin3): Ground Terminal Tar = ppod x1200 PROG
Vcc(Pin 4): Positive Input Supply Voltage Vin is the power supply to the internal circuit. When Vin drops to within 30mv of the BAT pin voltage, TP 4056 enters low power sleep mode, dropping BAT pin’s current to less than 2uA.
BAT(Pin5): Battery Connection Pin. Connect the positive terminal of the battery to BAT pin. BAT pin draws less than 2uA current in chip disable mode or in sleep mode. BAT pin provides charge current to the battery and provides regulation voltage of 4.2V.
STDBY(Pin6): Open Drain Charge Status Output When the battery Charge Termination, the STDBY pin is pulled low by an internal switch, otherwise STDBY pin is in high impedance state. CHRG (Pin7): Open Drain Charge Status Output When the battery is being charged, the CHRG pin is pulled low by an internal switch, otherwise CHRG pin is in high impedance state. CE(Pin8): Chip Enable Input. A high input will put the device in the normal operating mode. Pulling the CE pin to low level will put the YP 4056 into disable mode. The CE pin can be driven by TTL or CMOS logic level.
ELECTRICAL CHARACTERISTICS
The @ denotes specifications which apply over the full operating temperature range, otherwise specifications are at Ta=25°C, Vcc =5V, unless otherwise noted.
SYMBOL | PARAMETER CONDITIONS MIN TYP MAX re Vec Input Supply Voltage @| 40 5 8.0 Vv Input Supply Current Charge Mode, Rerog =1.2k e 150 500 pA StandbyMode(Charge e 55 100 pA | Terminated) e 55 100 pA cc Shutdown Mode (Rerog Not Connected,Vcc <Vsat, OF Vcc <Vuv) Regulated Output (Float) 0°C<TaS85°C, Ipat=40mA 4.137 | 4.2 4.263 | V VFLOAL V oltage BAT Pin Current RproG =2.4k, Current @ | 450 500 550 mA Mode Text condition: VBAT=4.0V | RPROG =1.2k, Current @ | 950 1000 | 1050 | mA Ipat Mode Standby Mode, Vgat =4.2V e\o —2.55 | —6 pA [TRIKE Trickle Charge Current Veat<Vrtaikt, Reroc=1.2K @| 120 130 140 mA Trickle Charge Threshold | Rerog=1.2K, Vear Rising 2.8 2.9 3.0 Vv Virikt V oltage Vinnvs Trickle Charge Hysteresis | Rerog=1.2K 60 80 100 mV Voltage J unction Temperature in 145 c Tum Constant Temperature Mode
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fa 5 es seers BHA A NG HEL BR ZS i] NanJing Top Power ASIC Corp.
indicator light state Rprog Current Setting
RPROG Ipat Charge state x Greed LED (k) (mA) STDBY 10 130 charging bright extinguish 5 250 Charge Termination | extinguish bright 4 300 Vin too low; 3 400 Temperature of 2 580 battery too low or | extinguish extinguish 1.66 690 too high; 15 | 780 BAT PIN Cow t 138 00 onnec | Greed LED bright, Red 12 | 1000 10u Capacitance; LED Coruscate T=1-4 S No battery
TYPICAL APPLICATIONS