component
FM5324HJ1
Public Made by Adomby adom
Shenzhen Fuman Battery Management, ESOP-8L. 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
markdownFM5324HJ1
Shenzhen Fuman · Battery Management · ESOP-8L
FM5324HJ1 from Shenzhen Fuman, in a ESOP-8L. 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 | VIN | power_in | Power input pin. Connects to 5V USB input (recommended 4.7-5.5V, absolute max 6V) for charging the lithium battery. UVLO rising threshold ~4.2V, falling ~3.5V. Input over-voltage protection triggers at ~6.0V. |
| 2 | LED1/L1 | output | LED indicator output 1. Drives battery capacity indication LED D1. Configurable for 1-4 LED display modes. |
| 3 | LED2/L2 | output | LED indicator output 2. Drives battery capacity indication LED D2. Used in 2/3/4-LED display configurations. |
| 4 | LED3/L3 | output | LED indicator output 3. Drives battery capacity indication LED D3. Used in 3/4-LED display configurations. |
| 5 | TAPW | input | Pushbutton input pin. Short-press activates boost output (S1 button); also used with external resistor divider (e.g. RKEY1 10k / RKEY2 100R) to select key mode / configuration. |
| 6 | BAT | power_out | Battery positive terminal sense/connection pin. Connects to lithium battery cell (charging output during charge, boost input during discharge). Full-charge regulation voltage typ 4.20V (programmable 4.20-4.40V). Discharge UVLO ~2.90V. |
| 7 | SW | output | Inductor drive pin / power MOSFET drain. Connects to external inductor (typ 1.0uH) for synchronous switching charging and boost operation at 500kHz. High-side PMOS Ron typ 35mΩ, low-side NMOS Ron typ 35mΩ. |
| 8 | OUT | power_out | Chip output pin / power PMOS source. Provides 5V boost output (typ 5.10V no-load) to USB output port with up to 2.4A capability. Over-current protection at ~3.0A, short-circuit protection built-in. Requires ~22uF x 2 output capacitors. |
| EP | PGND | power_in | Chip power ground / exposed pad, also serves as the low-side NMOS source. Must be connected to system ground with a thermal PCB pad for heat dissipation. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Shenzhen Fuman |
| Package | ESOP-8L |
| Category | PMIC |
| Pins | 9 |
CAD (KiCad official)
- Symbol:
FM5324HJ1 - Footprint:
Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.29x3mm - 3D model: ESOP-8L (KiCad packages3D, STEP)
- 3D model files:
fm5324hj1-etched.step/fm5324hj1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);fm5324hj1.step/fm5324hj1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Shenzhen Fuman datasheet (14 pp, sha256
89c5230f486c8333, retrieved 2026-08-17, 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:
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).