Data Sheet

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 T
A
=25℃，V
CC
=5V，unless otherwise noted.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX
UNI
TS
V
CC
Input Supply Voltage ● 4.0 5 8.0 V
I
CC
Input Supply Current Charge Mode, R
PROG
= 1.2k
StandbyMode(Charge
Terminated)
Shutdown Mode (R
PROG
Not
Connected,
V
CC
< V
BAT
, or V
CC
< V
UV
)
●
●
●
150
55
55
500
100
100
μA
μA
μA
V
FLOAL
Regulated Output (Float)
Voltage
0℃≤T
A
≤85℃，I
BAT
=40mA 4.137 4.2 4.263 V
I
BAT
BAT Pin Current
Text condition:VBAT=4.0V
R
PROG
= 2.4k, Current
Mode
R
PROG
= 1.2k, Current
Mode
Standby Mode, V
BAT
= 4.2V
●
●
●
450
950
0
500
1000
－2.5
550
1050
－6
mA
mA
μA
I
TRIKL
Trickle Charge Current V
BAT
<V
TRIKL
, R
PROG
=1.2K ● 120 130 140 mA
V
TRIKL
Trickle Charge Threshold
Voltage
R
PROG
=1.2K, V
BAT
Rising 2.8 2.9 3.0 V
V
TRHYS
Trickle Charge Hysteresis
Voltage
R
PROG
=1.2K 60 80 100 mV
T
LIM
Junction Temperature in
Constant Temperature
Mode
145 ℃
1200
PROG
BAT
PROG
V
I
R
=×
(V
PROG
=1V)