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TP4586

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TPOWER Battery Management, QFN3x3-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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TP4586

TPOWER · Battery Management · QFN3x3-16

TP4586 from TPOWER, in a QFN3x3-16. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 VDD power_in Charging input supply, recommended 4.5 V to 5.5 V with absolute maximum -0.3 V to +28 V and an input overvoltage protection threshold of 6.7 V.
2 SWT input Button input with about 30 µA internal pull-up; in EN=L and COM=L mode a single click (over 50 ms) turns on, and a double click within 500 ms turns off, the VOL/VOR outputs, and it is ignored when EN=L and COM=H.
3 LED1 output Indicator LED driver: battery-level LED in 4-LED mode and charge-status LED in 2-LED mode, with a typical drive current of 1.4 mA.
4 LED2 output Indicator LED driver: battery-level LED in 4-LED mode and discharge-status LED in 2-LED mode, with a typical drive current of 1.4 mA.
5 LED3 output Indicator LED driver for battery level in 4-LED mode; in 2-LED mode this pin must be shorted to GND.
6 NTC input Battery temperature sense input; connect the NTC thermistor to GND, and tie this pin to GND when the NTC function is not used.
7 VB power_out Bias voltage output for the NTC divider network, connected through a resistor to the NTC pin, and left floating when the NTC function is not used.
8 COM input VOR/VOL output-state control pin used together with EN; logic high threshold is 1.5 V and logic low threshold is 0.3 V, and it must be tied to GND when unused.
9 EN input Chip enable and VOR/VOL output-state control pin; the boost output is off above 1.5 V and enabled below 0.3 V, and it must be tied to GND when unused to enter automatic load detection.
10 PROG passive Charge-current setting pin with a resistor to GND; the datasheet gives 2 kΩ for 450 mA to 550 mA charge current at IBAT, and the maximum charge current is 500 mA.
11 IEND passive Light-load auto-shutoff current setting pin with a resistor to GND, where REND (kΩ) = 250 / IEND (mA); 49.9 kΩ gives 5 mA typical shutoff current.
12 BAT bidirectional Lithium-ion battery positive terminal, charged to a float voltage of 4.15 V to 4.25 V (4.2 V typical) and used as the boost input during discharge.
13 SW output Boost power switch node, which should be kept short and wide to the inductor L1 as stated in the layout guidance.
14 VOL output Left earphone charging/discharge output with a 250 mA overcurrent threshold and a 2.0 V short-circuit detection threshold.
15 VOR output Right earphone charging/discharge output with a 250 mA overcurrent threshold and a 2.0 V short-circuit detection threshold.
16 OUT power_out Synchronous boost output, 5.05 V typical at 0.5 A with an overvoltage protection threshold of 5.30 V.
17 GND passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer TPOWER
Package QFN3x3-16
Category Power Management (PMIC)
Pins 17

CAD (KiCad official)

  • Symbol: TP4586
  • Footprint: Package_DFN_QFN:QFN-16-1EP_3x3mm_P0.5mm_EP1.7x1.7mm
  • 3D model: QFN3x3-16 (KiCad packages3D, STEP)
  • 3D model files: tp4586-etched.step / tp4586-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tp4586.step / tp4586.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: TPOWER datasheet (9 pp, sha256 8987476780df098c, retrieved 2026-10-09, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF