component
FM5324GA
Public Made by Adomby adom
Shenzhen Fuman Battery Management ICs, ESOP-8. Pinout cross-checked by two models against the datasheet, 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
markdownFM5324GA
Shenzhen Fuman · Battery Management ICs · ESOP-8
FM5324GA from Shenzhen Fuman, in a ESOP-8. 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 | VIN | power_in | Power input pin; recommended input voltage 4.5 |
| 2 | L1 | output | LED battery-level indicator pin (L1-L3 group), output current 4/5/6 mA (min/typ/max). |
| 3 | L2 | output | LED battery-level indicator pin (L1-L3 group), output current 4/5/6 mA (min/typ/max). |
| 4 | L3 | output | LED battery-level indicator pin (L1-L3 group), output current 4/5/6 mA (min/typ/max). |
| 5 | TAPW | bidirectional | Key (button) pin that also controls the flashlight (WLED); with RKEY1=10kΩ short press starts boost, long press toggles flashlight, flashlight drive 22 mA at VBAT=4.0V. |
| 6 | BAT | power_out | Battery positive sense pin that supplies about 100 mA trickle charge current to the battery. |
| 7 | SW | passive | Inductor drive pin, power switch drain; recommended inductor 1.5uH. |
| 8 | OUT | power_out | Chip output pin, source of the power P-MOS; boost output of 5V with overcurrent protection at 3.0A typ. |
| 9 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Shenzhen Fuman |
| Package | ESOP-8 |
| Category | Power Supply Chip |
| Pins | 9 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Input voltage (absolute max) | VIN | -0.3 | 6 | V | 3 | ||
| Operating temperature range | TOP | -40 | 85 | ℃ | 3 | ||
| Operating junction temperature range | TJ | -20 | 150 | ℃ | 3 | ||
| Storage temperature | TST | -55 | 150 | ℃ | 3 | ||
| Lead soldering temperature | TLEAD | 300 | ℃ | 10 sec | 3 | ||
| Recommended input voltage | VIN | 4.5 | 5.5 | V | 3 | ||
| Recommended operating ambient temperature | TOP | 0 | 50 | ℃ | 3 | ||
| Standby current | IQ | 55 | 75 | uA | VBAT =4.2V | 4 | |
| Float threshold voltage | VBAT-REG | 4.16 | 4.2 | 4.24 | V | 4 | |
| Output overload protection time | TOCP-OFF | 12 | 14 | 16 | mS | 6 | |
| Output short-circuit current detection time | TLOAD-STP | 56 | 60 | 64 | uS | 6 | |
| LED port output current | ILED | 4 | 5 | 6 | mA | L1-L3 | 8 |
| LED flash frequency when charging | FLED-CHG | 0.9 | 1 | 1.1 | Hz | 单灯闪烁方式 | 8 |
| LED flash frequency, low battery | FLED-LOWB | 1.8 | 2 | 2.2 | Hz | 8 | |
| Manual key short-press time | TTAPSHORT | 24 | 28 | 32 | mS | 9 | |
| Manual key long-press time | TTAPLONG | 1.5 | 1.75 | 2 | S | 9 | |
| Input reverse blocking switch Rdson | RON-IRB | 75 | mΩ | 4 | |||
| Top switch Rdson | RON-TS | 35 | mΩ | 4 | |||
| Bottom switch Rdson | RON-BS | 35 | mΩ | 4 | |||
| Operating current, charging | ICC-CHG | 4 | mA | VIN =5V 充电状态 | 4 | ||
| Undervoltage threshold rising | VUVLO-RS | 4.2 | V | VIN从低到高 | 4 | ||
| Undervoltage threshold falling | VUVLO-DN | 3.5 | V | VIN从高到低 | 4 | ||
| Trickle to constant-current threshold | VTRKL | 3 | V | VBAT 从低到高 | 4 | ||
| Charge termination current | IFULL | 300 | mA | VIN=5.0V | 4 | ||
| Recharge threshold rising | VRECHG | 4.05 | V | VBAT rising | 4 | ||
| Recharge threshold falling | VRECHG | 4 | V | VBAT falling | 4 | ||
| Input constant-current charge current | IVIN-CHG | 2 | A | VIN=5.0V | 5 | ||
| Trickle charge current | ITRKL | 270 | mA | VBAT=2.8V | 5 | ||
| Input overvoltage protection voltage | VIN-OVP | 6 | V | 输入电压升高 | 5 | ||
| Operating current, boost | ICC-BST | 3.8 | mA | 放电状态： VBAT=4.2V ，ILOAD=0，指示灯熄灭 | 6 | ||
| No-load output voltage | VOUT-NL | 5.1 | V | IOUT=0 | 6 | ||
| Output overcurrent protection current | ILOAD-OCP | 3 | A | 6 | |||
| Oscillator frequency | fOSC | 1000 | KHz | 6 | |||
| Switching frequency | fSW | 500 | KHz | 6 | |||
| Shutdown voltage on discharge | VBAT-UVLO | 2.9 | V | 6 | |||
| Chip temperature limit protection | TEMPOTL | 95 | ℃ | 6 | |||
| Chip over-temperature protection | TEMPOTP | 135 | ℃ | 6 |
CAD (KiCad official)
- Symbol:
FM5324GA - Footprint:
Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm - 3D model: ESOP-8 (KiCad packages3D, STEP)
- 3D model files:
fm5324ga-etched.step/fm5324ga-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);fm5324ga.step/fm5324ga.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Shenzhen Fuman datasheet (12 pp, sha256
b7f07d15895812b5, retrieved 2026-10-22, 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, primaryclaude-sonnet-5-5(text), consensusclaude-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).