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CM1003-CAD

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iCM(创芯微) Battery Management, DFN-6L(1.6x1.9). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Contents

README

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CM1003-CAD

iCM(创芯微) · Battery Management · DFN-6L(1.6x1.9)

CM1003-CAD from iCM(创芯微), in a DFN-6L(1.6x1.9). 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 NC unconnected No connection; the datasheet lists this pin as not connected.
2 CO output Charge MOSFET control terminal; CO output voltage is rated VVM-0.3 V to VDD+0.3 V (absolute maximum).
3 DO output Discharge MOSFET control terminal; DO output voltage is rated VSS-0.3 V to VDD+0.3 V (absolute maximum).
4 VSS power_in Power ground, connected to the negative terminal of the supply battery; VDD-VSS is rated -0.3 V to +8.0 V (absolute maximum).
5 VDD power_in Power input, connected to the positive terminal of the supply battery; VDD-VSS is rated -0.3 V to +8.0 V (absolute maximum).
6 VM input Charge/discharge current detection terminal, connected to the negative terminal of the charger or load; VM input voltage is rated VDD-28 V to VDD+0.3 V (absolute maximum).
7 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer iCM(创芯微)
Package DFN-6L(1.6x1.9)
Category Power Management (PMIC)
Pins 7

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 VDD=3.5V, VVM=0V; Ta=+25°C 7
Over-discharge current IOPED 0.5 1 μA VDD=VVM=1.5V; Ta=+25°C 7
Overcharge detection voltage VOC 4.405 4.425 4.445 V VDD=3.5 → 4.8V; Ta=+25°C 7
Overcharge release voltage VOCR 4.18 4.225 4.27 V VDD=4.8 → 3.5V; Ta=+25°C 7
Overdischarge detection voltage VOD 2.75 2.8 2.85 V VDD=3.5 → 2.0V; Ta=+25°C 7
Overdischarge release voltage VODR 2.9 3 3.1 V VDD=2.0 → 3.5V; Ta=+25°C 7
Discharge over-current detection voltage VEC 0.075 0.08 0.085 V VM-VSS=0 → 0.30V; Ta=+25°C 7
Load short-circuit detection voltage VSHORT 0.46 0.5 0.54 V VM-VSS=0 → 1.5V; Ta=+25°C 7
Charge over-current detection voltage VCHA -0.085 -0.08 -0.075 V VSS-VM=0 → 0.30V; Ta=+25°C 7
Overcharge detection delay time TOC 700 1000 1300 ms VDD=3.5 → 4.8V; Ta=+25°C 7
Overdischarge detection delay time TOD 44.8 64 83.2 ms VDD=3.5 → 2.0V; Ta=+25°C 7
Discharge over-current detection delay time TEC 11.2 16 20.8 ms VM-VSS=0 → VEC+0.1V; Ta=+25°C 7
Charge over-current detection delay time TCHA 11.2 16 20.8 ms VSS-VM=0 → 0.30V; Ta=+25°C 7
Load short-circuit detection delay time TSHORT 140 280 504 μs VM-VSS=0 → 1.5V; Ta=+25°C 7
VDD terminal-VM terminal resistance RVMC 750 1500 3000 kΩ VDD=1.8V, VVM=0V; Ta=+25°C 7
VM terminal-VSS terminal resistance RVMS 10 20 30 kΩ VDD=3.5V, VVM=1.0V; Ta=+25°C 7
CO terminal resistance H RCOH 5 10 20 kΩ Ta=+25°C 7
CO terminal resistance L RCOL 5 10 20 kΩ Ta=+25°C 7
DO terminal resistance H RDOH 5 10 20 kΩ Ta=+25°C 7
DO terminal resistance L RDOL 5 10 20 kΩ Ta=+25°C 7
Charger voltage allowing charge of 0V battery V0CH 0 0.7 1.5 V 0V-battery charging function allowed; Ta=+25°C 7
Normal operating current IOPE 0.6 1.5 5 μA VDD=3.5V, VVM=0V; Ta=-20°C ~ +60°C 8
Over-discharge current IOPED 0.5 1.5 μA VDD=VVM=1.5V; Ta=-20°C ~ +60°C 8
Overcharge detection voltage VOC 4.385 4.425 4.465 V VDD=3.5 → 4.8V; Ta=-20°C ~ +60°C 8
Overcharge release voltage VOCR 4.15 4.225 4.3 V VDD=4.8 → 3.5V; Ta=-20°C ~ +60°C 8
Overdischarge detection voltage VOD 2.72 2.8 2.88 V VDD=3.5 → 2.0V; Ta=-20°C ~ +60°C 8
Overdischarge release voltage VODR 2.88 3 3.12 V VDD=2.0 → 3.5V; Ta=-20°C ~ +60°C 8
Discharge over-current detection voltage VEC 0.07 0.08 0.09 V VM-VSS=0 → 0.30V; Ta=-20°C ~ +60°C 8
Load short-circuit detection voltage VSHORT 0.42 0.5 0.58 V VM-VSS=0 → 1.5V; Ta=-20°C ~ +60°C 8
Charge over-current detection voltage VCHA -0.09 -0.08 -0.07 V VSS-VM=0 → 0.30V; Ta=-20°C ~ +60°C 8
Overcharge detection delay time TOC 500 1000 2000 ms VDD=3.5 → 4.8V; Ta=-20°C ~ +60°C 8
Overdischarge detection delay time TOD 32 64 128 ms VDD=3.5 → 2.0V; Ta=-20°C ~ +60°C 8
Discharge over-current detection delay time TEC 8 16 32 ms VM-VSS=0 → VEC+0.1V; Ta=-20°C ~ +60°C 8
Charge over-current detection delay time TCHA 8 16 32 ms VSS-VM=0 → 0.30V; Ta=-20°C ~ +60°C 8
Load short-circuit detection delay time TSHORT 112 280 616 μs VM-VSS=0 → 1.5V; Ta=-20°C ~ +60°C 8
VDD terminal-VM terminal resistance RVMC 500 1500 6000 kΩ VDD=1.8V, VVM=0V; Ta=-20°C ~ +60°C 8
VM terminal-VSS terminal resistance RVMS 7.5 20 40 kΩ VDD=3.5V, VVM=1.0V; Ta=-20°C ~ +60°C 8
CO terminal resistance H RCOH 2.5 10 30 kΩ Ta=-20°C ~ +60°C 8
CO terminal resistance L RCOL 2.5 10 30 kΩ Ta=-20°C ~ +60°C 8
DO terminal resistance H RDOH 2.5 10 30 kΩ Ta=-20°C ~ +60°C 8
DO terminal resistance L RDOL 2.5 10 30 kΩ Ta=-20°C ~ +60°C 8
Charger voltage allowing charge of 0V battery V0CH 0 0.7 1.8 V 0V-battery charging function allowed; Ta=-20°C ~ +60°C 8
VDD to VSS input voltage VDD -0.3 8 V Referenced to VSS: VSS-0.3 ~ VSS+8.0; Ta=+25°C 6
VM input terminal voltage VVM -28 0.3 V Referenced to VDD: VDD-28 ~ VDD+0.3; Ta=+25°C 6
CO output terminal voltage VCO -0.3 0.3 V Referenced to VM (lower) and VDD (upper): VVM-0.3 ~ VDD+0.3; Ta=+25°C 6
DO output terminal voltage VDO -0.3 0.3 V Referenced to VSS (lower) and VDD (upper): VSS-0.3 ~ VDD+0.3; Ta=+25°C 6
Operating temperature range TOPR -40 85 °C Ta 6
Storage temperature range TSTG -55 125 °C 6

CAD (KiCad official)

  • Symbol: CM1003-CAD
  • Footprint: Package_DFN_QFN:DFN-6-1EP_2x1.6mm_P0.5mm_EP1.15x1.3mm
  • 3D model: DFN-6L(1.6x1.9), generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.9 mm nominal QFN height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
  • 3D model files: cm1003-cad-etched.step / cm1003-cad-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cm1003-cad.step / cm1003-cad.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: iCM(创芯微) datasheet (21 pp, sha256 dc7513029223064c, 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, 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