TP4056 Просмотр технического описания (PDF) - Unspecified
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TP4056 Datasheet PDF : 3 Pages
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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:
GND(Pin3): Ground Terminal
I BAT
= VPROG
RPROG
× 1200
(VPROG=1V)
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
UNI
MIN TYP MAX TS
VCC
Input Supply Voltage
● 4.0
5
8.0 V
Input Supply Current
Charge Mode, RPROG = 1.2k ●
StandbyMode(Charge
●
150 500 μA
55
100 μA
Terminated)
●
55
100 μA
ICC
Shutdown Mode (RPROG Not
Connected,VCC < VBAT, or VCC
< VUV)
VFLOAL
Regulated Output (Float)
Voltage
0℃≤TA≤85℃，IBAT=40mA
4.137 4.2 4.263 V
BAT Pin Current
RPROG = 2.4k, Current
● 450 500 550 mA
Mode
IBAT
Text condition:VBAT=4.0V RPROG = 1.2k, Current
Mode
● 950 1000 1050 mA
Standby Mode, VBAT = 4.2V
●0
－2.5 －6 μA
ITRIKL
VTRIKL
VTRHYS
TLIM
Trickle Charge Current
Trickle Charge Threshold
Voltage
Trickle Charge Hysteresis
Voltage
Junction Temperature in
Constant Temperature
Mode
VBAT<VTRIKL, RPROG=1.2K
RPROG=1.2K, VBAT Rising
RPROG=1.2K
● 120 130 140 mA
2.8 2.9 3.0 V
60
80
100 mV
145
℃
2
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