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CM1003-BFS

Public Made by Adom

by adom

iCM(创芯微) , SOT-23-6. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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CM1003-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.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cm1003-bfs.step / cm1003-bfs.glb are 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, 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