Datasheet TP5000 (Top Power ASIC) - 5
| Manufacturer | Top Power ASIC |
| Description | 2A switching 4.2V lithium battery / 3.6V LiFePO4 Charger |
| Pages / Page | 8 / 5 — V N. ( i. P n. i 2,. 2 16. 1 ). 6 :. L (Pin. i 3,. 3 4. , ,. 4 5. , ). 5 … |
| File Format / Size | PDF / 310 Kb |
| Document Language | English |
V N. ( i. P n. i 2,. 2 16. 1 ). 6 :. L (Pin. i 3,. 3 4. , ,. 4 5. , ). 5 :. G D. i 6,. 6 7. 7 :. V (P. i 8). 8 :. B T. A (P. i 9). 9 :. V E. R G. p n. i 10. 0 :. T (P. i 11. 1 :. R R. T I
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Text Version of Document
南京拓微集成电路有限公司 NanJing Top Power ASIC Corp. Pin Function
VI V N I (P ( i P n i 2, 2 16 1 ) 6 : )
the positive input terminal of the input voltage. The voltage on this pin for internal circuit power supply, and the VIN changes in the range of 4.5V to 9V and a 10μF tantalum capacitor bypass. When the VIN and VRBATR differential pressure is lower than 30mv, TP5000 enter shutdown mode, the dropped 4μA so IRBATR.
LX L (Pin i 3, 3 4 , , 4 5 , ) 5 : )
built-in the PMOSFET power pipe drain connection. LX is TP5000 the current output terminal and is connected to the external inductor as the input terminal of the battery charging current.
GN G D N (P ( i P n i 6, 6 7 , ) 7 : )
Power Ground.
VS V (P ( i P n i 8) 8 : )
Output current sense positive input terminal.
BA B T A (P ( i P n i 9) 9 : )
battery voltage detection terminal. To the positive terminal of the battery is connected to this pin.
VR V E R G E (p ( i p n i 10 1 ) 0 : )
internal power supply. The VREG is an internal power supply, external 0.1uF bypass capacitor to ground.
TS T (P ( i P n i 11 1 ) 1 : )
The battery temperature detection input. TS pin to the NTC (negative temperature coefficient thermistor) sensor output terminal of the battery. If the TS pin voltage is less than 45% of the input voltage or greater than 80% of the input voltage, which means that the battery temperature is too low or too high, the charging is suspended. If TS is directly tied to GND, battery temperature detection function is canceled, the other charging function properly.
RT R R T I R C I K C (P ( i P n i 12 1 ) 2 : )
Trickle pre-charge current setting end. Pre the RTRICK pin to ground charging current set at 10% constant current, pre-charging current can be set by an external resistor. If RTRICK vacant then the pre-charge current is equal to the constant current.
CS C (P ( i P n i 13 1 ) 3 : )
lithium-ion or LiFePO4 status chip select input. CS pin high input level wil TP5000 is the lithium-ion battery charging a 4.2V voltage shutdown state. The CS left side in the TP5000 iron phosphate lithium-off voltage 3.6V. Low input level TP5000 is shutdown. CS client can be TTL or CMOS level driver.
ST S D T B D Y B (P ( i P n i 14 1 ) 4 : )
Battery Charge complete indication end. When the battery is ful y charged, the internal switch is pulled low, the charging is completed. In addition, the pin wil be in a high impedance state.
CH C R H G R (P ( i P n i 15 1 ) 5
：Charge indicator status. Charger to charge the battery, pin internal switch pulled low, indicating that charging is in progress; otherwise the pin is in a high impedance state.
VI V N I (P ( i P n i 2, 2 16 1 ) 6 : )
the positive input terminal of the input voltage. The voltage on this pin for internal circuit power supply, and the VIN changes in the range of 4.5V to 9V and a 10μF tantalum capacitor bypass. When the VIN and VRBATR differential pressure is lower than 30mv, TP5000 enter shutdown mode, the dropped 4μA so IRBATR.
LX L (Pin i 3, 3 4 , , 4 5 , ) 5 : )
built-in the PMOSFET power pipe drain connection. LX is TP5000 the current output terminal and is connected to the external inductor as the input terminal of the battery charging current.
GN G D N (P ( i P n i 6, 6 7 , ) 7 : )
Power Ground.
VS V (P ( i P n i 8) 8 : )
Output current sense positive input terminal.
BA B T A (P ( i P n i 9) 9 : )
battery voltage detection terminal. To the positive terminal of the battery is connected to this pin.
VR V E R G E (p ( i p n i 10 1 ) 0 : )
internal power supply. The VREG is an internal power supply, external 0.1uF bypass capacitor to ground.
TS T (P ( i P n i 11 1 ) 1 : )
The battery temperature detection input. TS pin to the NTC (negative temperature coefficient thermistor) sensor output terminal of the battery. If the TS pin voltage is less than 45% of the input voltage or greater than 80% of the input voltage, which means that the battery temperature is too low or too high, the charging is suspended. If TS is directly tied to GND, battery temperature detection function is canceled, the other charging function properly.
RT R R T I R C I K C (P ( i P n i 12 1 ) 2 : )
Trickle pre-charge current setting end. Pre the RTRICK pin to ground charging current set at 10% constant current, pre-charging current can be set by an external resistor. If RTRICK vacant then the pre-charge current is equal to the constant current.
CS C (P ( i P n i 13 1 ) 3 : )
lithium-ion or LiFePO4 status chip select input. CS pin high input level wil TP5000 is the lithium-ion battery charging a 4.2V voltage shutdown state. The CS left side in the TP5000 iron phosphate lithium-off voltage 3.6V. Low input level TP5000 is shutdown. CS client can be TTL or CMOS level driver.
ST S D T B D Y B (P ( i P n i 14 1 ) 4 : )
Battery Charge complete indication end. When the battery is ful y charged, the internal switch is pulled low, the charging is completed. In addition, the pin wil be in a high impedance state.
CH C R H G R (P ( i P n i 15 1 ) 5
：Charge indicator status. Charger to charge the battery, pin internal switch pulled low, indicating that charging is in progress; otherwise the pin is in a high impedance state.
