Datasheet TP4056 (Top Power ASIC) - 2

南京拓微集成电路有限公司 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:

VPROG I = ×1200 (VPROG=1V)
GND(Pin3): Ground Terminal
BAT RPROG
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, TP4056 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.
(Pin6): Open Drain Charge Status Output
When the battery Charge Termination, the pin is pulled low by an internal switch, otherwise pin is in high impedance state.
(Pin7): Open Drain Charge Status Output
When the battery is being charged, the pin is pulled low by an internal switch, otherwise 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 YP4056 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℃，VCC =5V
，unless otherwise noted. UNI SYMBOL PARAMETER CONDITIONS MIN TYP MAX TS V Input Supply Voltage ● 4.0 5 8.0 V CC Input Supply Current Charge Mode, RPROG = 1.2k ● 150 500 μA StandbyMode(Charge ● 55 100 μA Terminated) ● 55 100 μA ICC Shutdown Mode (RPROG Not Connected,VCC < VBAT, or VCC < VUV) Regulated Output (Float) 0℃≤TA≤85℃，IBAT=40mA 4.137 4.2 4.263 V VFLOAL Voltage 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 IBAT Mode Standby Mode, VBAT = 4.2V ● 0 －2.5 －6 μA ITRIKL Trickle Charge Current VBAT<VTRIKL, RPROG=1.2K ● 120 130 140 mA Trickle Charge Threshold RPROG=1.2K, VBAT Rising 2.8 2.9 3.0 V VTRIKL Voltage Trickle Charge Hysteresis RPROG=1.2K 60 80 100 mV VTRHYS Voltage Junction Temperature in 145 ℃ TLIM Constant Temperature Mode

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