component
CM1003-BFS
Public Made by Adomby adom
iCM(创芯微) , 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
markdownCM1003-BFS
iCM(创芯微) · IC · SOT-23-6
CM1003-BFS from iCM(创芯微), 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 | Discharge MOSFET control terminal; DO is driven low to turn off the discharge MOSFET on overdischarge, discharge overcurrent, or load short-circuit, with output limited to VSS-0.3 V to VDD+0.3 V. |
| 2 | VM | input | Charge/discharge current detection terminal connected to the negative side of the charger or load, with input voltage limited to VDD-28 V to VDD+0.3 V. |
| 3 | CO | output | Charge MOSFET control terminal; CO is driven low to turn off the charge MOSFET on overcharge or charge overcurrent, with output limited to VM-0.3 V to VDD+0.3 V. |
| 4 | NC | unconnected | No connection. |
| 5 | VDD | power_in | Power supply input connected to the positive terminal of the supply (battery), with VDD to VSS limited to VSS-0.3 V to VSS+8.0 V. |
| 6 | VSS | power_in | Power ground connected to the negative terminal of the supply (battery), serving as the reference for all detection thresholds. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | iCM(创芯微) |
| Package | SOT-23-6 |
| Category | |
| 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 |
|---|---|---|---|---|---|---|---|
| Normal operating current | IOPE | 0.9 | 1.5 | 3 | μA | Ta=+25°C; VDD=3.5V, VVM=0V | 7 |
| Overdischarge current | IOPED | 0.5 | 1 | μA | Ta=+25°C; VDD=VVM=1.5V | 7 | |
| Overcharge detection voltage | VOC | 4.2 | 4.225 | 4.25 | V | Ta=+25°C; VDD=3.5 → 4.8V | 7 |
| Overcharge release voltage | VOCR | 3.98 | 4.025 | 4.07 | V | Ta=+25°C; VDD=4.8 → 3.5V | 7 |
| Overdischarge detection voltage | VOD | 2.45 | 2.5 | 2.55 | V | Ta=+25°C; VDD=3.5 → 2.0V | 7 |
| Overdischarge release voltage | VODR | 2.81 | 2.91 | 3.01 | V | Ta=+25°C; VDD=2.0 → 3.5V | 7 |
| Discharge overcurrent detection voltage | VEC | 0.14 | 0.15 | 0.16 | V | Ta=+25°C; VM-VSS=0 → 0.30V | 7 |
| Short-circuit detection voltage | VSHORT | 0.44 | 0.5 | 0.56 | V | Ta=+25°C; VM-VSS=0 → 1.5V | 7 |
| Charge overcurrent detection voltage | VCHA | -0.16 | -0.15 | -0.14 | V | Ta=+25°C; VSS-VM=0 → 0.30V | 7 |
| Discharge overcurrent release voltage (offset from VDD) | VRIOV | -1.4 | -1 | -0.6 | V | Ta=+25°C | 7 |
| Overcharge detection delay | TOC | 700 | 1000 | 1300 | ms | Ta=+25°C; VDD=3.5 → 4.8V | 7 |
| Overdischarge detection delay | TOD | 22.4 | 32 | 41.6 | ms | Ta=+25°C; VDD=3.5 → 2.0V | 7 |
| Discharge overcurrent detection delay | TEC | 5.6 | 8 | 10.4 | ms | Ta=+25°C; VM-VSS=0 →VEC+0.1V | 7 |
| Charge overcurrent detection delay | TCHA | 5.6 | 8 | 10.4 | ms | Ta=+25°C; VSS-VM=0 → 0.30V | 7 |
| Short-circuit detection delay | TSHORT | 140 | 280 | 504 | μs | Ta=+25°C; VM-VSS=0 → 1.5V | 7 |
| Internal resistance VDD to VM | RVMC | 750 | 1500 | 3000 | kΩ | Ta=+25°C; VDD=1.8V, VVM=0V | 7 |
| Internal resistance VM to VSS | RVMS | 10 | 20 | 30 | kΩ | Ta=+25°C; VDD=3.5V, VVM=1.0V | 7 |
| CO terminal output resistance H | RCOH | 5 | 10 | 20 | kΩ | Ta=+25°C | 7 |
| CO terminal output resistance L | RCOL | 5 | 10 | 20 | kΩ | Ta=+25°C | 7 |
| DO terminal output resistance H | RDOH | 5 | 10 | 20 | kΩ | Ta=+25°C | 7 |
| DO terminal output resistance L | RDOL | 5 | 10 | 20 | kΩ | Ta=+25°C | 7 |
| Battery voltage below which 0V-battery charging is prohibited | V0IN | 0.9 | 1.2 | 1.5 | V | Ta=+25°C; 禁止向 0V 电池充电功能 | 7 |
| Normal operating current | IOPE | 0.6 | 1.5 | 5 | μA | Ta=-20°C~+60°C; VDD=3.5V, VVM=0V | 8 |
| Overdischarge current | IOPED | 0.5 | 1.5 | μA | Ta=-20°C~+60°C; VDD=VVM=1.5V | 8 | |
| Overcharge detection voltage | VOC | 4.2 | 4.225 | 4.25 | V | Ta=-20°C~+60°C; VDD=3.5 → 4.8V | 8 |
| Overcharge release voltage | VOCR | 3.95 | 4.025 | 4.1 | V | Ta=-20°C~+60°C; VDD=4.8 → 3.5V | 8 |
| Overdischarge detection voltage | VOD | 2.42 | 2.5 | 2.58 | V | Ta=-20°C~+60°C; VDD=3.5 → 2.0V | 8 |
| Overdischarge release voltage | VODR | 2.79 | 2.91 | 3.03 | V | Ta=-20°C~+60°C; VDD=2.0 → 3.5V | 8 |
| Discharge overcurrent detection voltage | VEC | 0.135 | 0.15 | 0.165 | V | Ta=-20°C~+60°C; VM-VSS=0 → 0.30V | 8 |
| Short-circuit detection voltage | VSHORT | 0.41 | 0.5 | 0.59 | V | Ta=-20°C~+60°C; VM-VSS=0 → 1.5V | 8 |
| Charge overcurrent detection voltage | VCHA | -0.165 | -0.15 | -0.135 | V | Ta=-20°C~+60°C; VSS-VM=0 → 0.30V | 8 |
| Discharge overcurrent release voltage (offset from VDD) | VRIOV | -1.6 | -1 | -0.4 | V | Ta=-20°C~+60°C | 8 |
| Overcharge detection delay | TOC | 500 | 1000 | 2000 | ms | Ta=-20°C~+60°C; VDD=3.5 → 4.8V | 8 |
| Overdischarge detection delay | TOD | 16 | 32 | 64 | ms | Ta=-20°C~+60°C; VDD=3.5 → 2.0V | 8 |
| Discharge overcurrent detection delay | TEC | 4 | 8 | 16 | ms | Ta=-20°C~+60°C; VM-VSS=0 →VEC+0.1V | 8 |
| Charge overcurrent detection delay | TCHA | 4 | 8 | 16 | ms | Ta=-20°C~+60°C; VSS-VM=0 → 0.30V | 8 |
| Short-circuit detection delay | TSHORT | 112 | 280 | 616 | μs | Ta=-20°C~+60°C; VM-VSS=0 → 1.5V | 8 |
| Internal resistance VDD to VM | RVMC | 500 | 1500 | 6000 | kΩ | Ta=-20°C~+60°C; VDD=1.8V, VVM=0V | 8 |
| Internal resistance VM to VSS | RVMS | 7.5 | 20 | 40 | kΩ | Ta=-20°C~+60°C; VDD=3.5V, VVM=1.0V | 8 |
| CO terminal output resistance H | RCOH | 2.5 | 10 | 30 | kΩ | Ta=-20°C~+60°C | 8 |
| CO terminal output resistance L | RCOL | 2.5 | 10 | 30 | kΩ | Ta=-20°C~+60°C | 8 |
| DO terminal output resistance H | RDOH | 2.5 | 10 | 30 | kΩ | Ta=-20°C~+60°C | 8 |
| DO terminal output resistance L | RDOL | 2.5 | 10 | 30 | kΩ | Ta=-20°C~+60°C | 8 |
| Battery voltage below which 0V-battery charging is prohibited | V0IN | 0.6 | 1.2 | 1.8 | V | Ta=-20°C~+60°C; 禁止向 0V 电池充电功能 | 8 |
| Input voltage between VDD and VSS (referenced to VSS) | VDD | -0.3 | 8 | V | 6 | ||
| VM input terminal voltage (referenced to VDD) | VVM | -28 | 0.3 | V | 6 | ||
| CO output terminal voltage (min referenced to VVM, max to VDD) | VCO | -0.3 | 0.3 | V | 6 | ||
| DO output terminal voltage (min referenced to VSS, max to VDD) | VDO | -0.3 | 0.3 | V | 6 | ||
| Operating temperature range | TOPR | -40 | 85 | °C | 6 | ||
| Storage temperature range | TSTG | -55 | 125 | °C | 6 |
CAD (KiCad official)
- Symbol:
CM1003-BFS - Footprint:
Package_TO_SOT_SMD:SOT-23-6 - 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files:
cm1003-bfs-etched.step/cm1003-bfs-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);cm1003-bfs.step/cm1003-bfs.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: iCM(创芯微) datasheet (20 pp, sha256
bf41ed6b59e374f4, retrieved 2026-10-18, 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).