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TP5000X-4.35-ESOP8
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TOPPOWER Nanjing Extension Microelectronics TP5000X 4 35 ESOP8 Battery Management, ESOP-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownTP5000X-4.35-ESOP8
TOPPOWER Nanjing Extension Microelectronics · Battery Management · ESOP-8
TP5000X-4.35-ESOP8 from TOPPOWER Nanjing Extension Microelectronics, in a ESOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | LX | power_out | Built-in PMOSFET power stage drain / switching node output. Connects to the external buck inductor (2.2uH-10uH, typ. 4.7uH) that supplies the battery charging current. Switches at ~800kHz. |
| 2 | GND | power_in | Power ground. Also connects to the ESOP-8 exposed thermal heat-sink pad; the pad must not be connected to any other potential. |
| 3 | VS | input | Output current-sense positive input. The differential voltage between VS and BAT across the external sense resistor Rs (typ. 0.05-0.1 ohm) programs the constant charging current (up to 2A at Rs=0.067 ohm). |
| 4 | BAT | input | Battery voltage detection terminal; connects to the positive terminal of the Li-ion cell. Serves as both the current-sense negative input and the float voltage regulation feedback node (regulated to 4.35V on this variant, tolerance 4.306-4.394V). |
| 5 | TS | input | Battery temperature sense input. Connects to an NTC thermistor on the battery. Charging suspends if V(TS) < 45% of VIN or > 80% of VIN. Tie directly to GND to disable temperature protection while keeping other charging functions active. |
| 6 | STDBY | output | Battery-fully-charged status output (active-low, open-drain). Pulled low when the battery is fully charged and charging is terminated; high-impedance otherwise. VOL = 0.3V typ. at 5mA. |
| 7 | CHRG | output | Charge-in-progress status output (active-low, open-drain). Pulled low while charging is in progress; high-impedance when charging is complete or the chip is idle. VOL = 0.3V typ. at 5mA. |
| 8 | VIN | power_in | Positive input supply. Operating range 4.5V-9V (absolute max 9V), UVLO rising threshold 3.7V typ. Powers internal circuitry and the built-in PMOSFET; bypass with a 10uF tantalum capacitor. Chip enters shutdown (~4uA) when VIN-VBAT drops below 50mV. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | TOPPOWER Nanjing Extension Microelectronics |
| Package | ESOP-8 |
| Category | PMIC |
| Pins | 8 |
Ordering variants
Same part, different packaging or reel option.
TP5000X-4.35-ESOP8AYYWWXTP5000X-4.35-ESOP8BYYWWXTP5000X-4.35-ESOP8CYYWWX
CAD (KiCad official)
- Symbol:
TP5000X-4.35-ESOP8 - Footprint:
Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.29x3mm - 3D model: ESOP-8 (KiCad packages3D, STEP)
- 3D model files:
tp5000x-4-35-esop8-etched.step/tp5000x-4-35-esop8-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tp5000x-4-35-esop8.step/tp5000x-4-35-esop8.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: TOPPOWER Nanjing Extension Microelectronics datasheet (13 pp, sha256
18dd42b0c52324ba, retrieved 2026-08-17, tier: lcsc) - Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).