南京拓微集成电路有限公司

NanJing Top Power ASIC Corp.

2

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:

GND(Pin3): Ground Terminal

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.

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNI

TS

VCC

Input Supply Voltage

● 4.0

5

8.0

V

ICC

Input Supply Current

Charge Mode, RPROG = 1.2k

StandbyMode(Charge

Terminated)

Shutdown Mode (RPROG Not

Connected,VCC < VBAT, or VCC

< VUV)

●

●

●

150

55

55

500

100

100

μA

μA

μA

VFLOAL

Regulated Output (Float)

Voltage

0℃≤TA≤85℃，IBAT=40mA

4.137

4.2

4.263

V

IBAT

BAT Pin Current

Text condition:VBAT=4.0V

RPROG = 2.4k, Current

Mode

RPROG = 1.2k, Current

Mode

Standby Mode, VBAT = 4.2V

●

●

●

450

950

0

500

1000

－2.5

550

1050

－6

mA

mA

μA

ITRIKL

Trickle Charge Current

VBAT<VTRIKL, RPROG=1.2K

● 120

130

140

mA

VTRIKL

Trickle Charge Threshold

Voltage

RPROG=1.2K, VBAT Rising

2.8

2.9

3.0

V

VTRHYS

Trickle Charge Hysteresis

Voltage

RPROG=1.2K

60

80

100

mV

TLIM

Junction Temperature in

Constant Temperature

Mode

145

℃

1200

PROG

BAT

PROG

V

I

R

=×

(VPROG=1V)