component
FH2120-NB
Public Made by Adomby adom
鑫飞宏 Battery Management, SOT-23-6. 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
markdownFH2120-NB
鑫飞宏 · Battery Management · SOT-23-6
FH2120-NB from 鑫飞宏, in a SOT-23-6. 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 | DO | output | Gate connection terminal for the discharge-control MOSFET; the output swings between VSS-0.3 V and VDD+0.3 V as an absolute maximum, with high level VDD-0.1 V to VDD-0.02 V and low level 0.5 V max. |
| 2 | CO | output | Gate connection terminal for the charge-control MOSFET; the output swings between VDD-28 V and VDD+0.3 V as an absolute maximum, with high level VDD-0.1 V to VDD-0.02 V and low level 0.5 V max. |
| 3 | VM | input | Overcurrent detection and charger detection terminal; its input voltage is limited to VDD-28 V to VDD+0.3 V. |
| 4 | VC | input | Connection between the negative terminal of cell 1 and the positive terminal of cell 2, used for voltage sensing; it must stay within the VDD-VC and VC-VSS input range of -0.3 V to +6.0 V. |
| 5 | VDD | power_in | Positive power supply input and connection to the positive terminal of cell 1; the operating voltage range VDD-VC/VC-VSS is -0.3 V to 6 V and VDD-VM is 1.5 V to 28 V. |
| 6 | VSS | power_in | Ground and negative power supply input, also connected to the negative terminal of cell 2. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | 鑫飞宏 |
| Package | SOT-23-6 |
| Category | Power Management (PMIC) |
| Pins | 6 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| 工作电压 (VDD-VC, VC-VSS) | VOP1 | -0.3 | 6 | V | 6 | ||
| 工作电压 (VDD-VM) | VOP2 | 1.5 | 28 | V | 6 | ||
| 正常工作电流 | IDD | 5 | 9 | μA | V1=V2=3.5V,VVM=0V | 6 | |
| 过放电流 | IOPED | 3 | 6 | μA | V1=V2=1.5V,VVM=3V | 6 | |
| 过充电保护电压 (tolerance) | VOC | -0.025 | 0.025 | V | 6 | ||
| 过充电解除电压 (tolerance) | VOCR | -0.05 | 0.05 | V | 6 | ||
| 过放电保护电压 (tolerance) | VOD | -0.08 | 0.08 | V | 6 | ||
| 过放电解除电压 (tolerance) | VODR | -0.1 | 0.1 | V | 6 | ||
| 放电过流保护电压 (tolerance) | VEC | -0.03 | 0.03 | V | VEC＞0.100V | 6 | |
| 短路保护电压 (tolerance) | VSHORT | -0.2 | 0.2 | V | 6 | ||
| 充电过流保护电压 (tolerance) | VCHA | -0.03 | 0.03 | V | 6 | ||
| DO 端子输出低电压 | VDL | 0.2 | 0.5 | V | 6 | ||
| CO 端子输出低电压 | VCL | 0.2 | 0.5 | V | 6 | ||
| 充电器起始电压（允许向 0V 电池充电功能） | V0CH | 1.2 | V | 允许向0V电池充电功能 | 6 | ||
| 过充电保护延时 (delay code A) | TOC | 1000 | ms | Delay code A; printed as TOC60% min and TOC140% max | 4 | ||
| 过放电保护延时 (delay code A) | TOD | 128 | ms | Delay code A; printed as TOD60% min and TOD140% max | 4 | ||
| 放电过流延时 (delay code A) | TEC | 10 | ms | Delay code A; printed as TEC60% min and TEC140% max | 4 | ||
| 充电过流延时 (delay code A) | TCHA | 8 | ms | Delay code A; printed as TCHA60% min and TCHA140% max | 4 | ||
| 短路延时 (delay code A) | TSHORT | 250 | μs | Delay code A; printed as TSHORT60% min and TSHORT140% max | 4 | ||
| VDD and VC, VC and VSS 之间输入电压 | VDD-VC, VC-VSS | -0.3 | 6 | V | 5 | ||
| 工作温度范围 | TOPR | -40 | 85 | °C | 5 | ||
| 储存温度范围 | TSTG | -40 | 125 | °C | 5 |
CAD (KiCad official)
- Symbol:
FH2120-NB - Footprint:
Package_TO_SOT_SMD:SOT-23-6 - 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files:
fh2120-nb-etched.step/fh2120-nb-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);fh2120-nb.step/fh2120-nb.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: 鑫飞宏 datasheet (11 pp, sha256
9ef51fe0681e9620, retrieved 2026-10-17, 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: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-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).