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CM1270-ACA-A

Public Made by Adom

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iCM(创芯微) , MSOP-10. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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CM1270-ACA-A

iCM(创芯微) · IC · MSOP-10

CM1270-ACA-A from iCM(创芯微), in a MSOP-10. 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 VCC power_in Chip supply terminal; the absolute maximum rating is VSS-0.3 V to VSS+40 V.
2 VC1 input Positive voltage terminal of battery cell 1; the input voltage between adjacent VC pins is limited to 0 to 12 V.
3 VC2 input Positive voltage terminal of battery cell 2 and negative voltage connection of cell 1; the input voltage between adjacent VC pins is limited to 0 to 12 V.
4 VC3 input Positive voltage terminal of battery cell 3 and negative voltage connection of cell 2; the input voltage between adjacent VC pins is limited to 0 to 12 V.
5 VC4 input Positive voltage terminal of battery cell 4 and negative voltage connection of cell 3; the input voltage between adjacent VC pins is limited to 0 to 12 V.
6 VC5 input Positive voltage terminal of battery cell 5 and negative voltage connection of cell 4; the input voltage between adjacent VC pins is limited to 0 to 12 V.
7 VC6 input Positive voltage terminal of battery cell 6 and negative voltage connection of cell 5; the input voltage between adjacent VC pins is limited to 0 to 12 V.
8 VC7 input Positive voltage terminal of battery cell 7 and negative voltage connection of cell 6; the input voltage between adjacent VC pins is limited to 0 to 12 V.
9 VSS power_in Chip ground terminal; the input voltage from VC7 to VSS is limited to 0 to 12 V.
10 CO output Charge-control connection terminal that drives the external MOSFET; its output voltage is limited to VSS-0.3 V to VCC+0.3 V.

Key specifications

Parameter Value
Manufacturer iCM(创芯微)
Package MSOP-10
Category
Pins 10

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 IVCC 3.5 6 μA V1=V2=V3=V4=V5=V6=V7=3.5V 7
Overcharge protection voltage tolerance (printed ±0.025 V about VOC) VOC -0.025 0.025 V V1=V2=V3=V4=V5=V6=V7=3.5V, V1=3.5 → 4.4V 7
Release voltage tolerance (printed ±0.050 V about VOCR) VOCR -0.05 0.05 V V1=V2=V3=V4=V5=V6=V7=3.5V, V1=4.4 → 3.5V 7
Overcharge protection delay TOC 1 s V1=V2=V3=V4=V5=V6=V7=3.5V, V1=3.5 → 4.4V 7
Restore delay TOCR 128 256 384 ms V1=V2=V3=V4=V5=V6=V7=3.5V, V1=4.4 → 3.5V 7
Reset delay TRST 1 2.5 4 ms V1=V2=V3=V4=V5=V6=V7=3.5V, V1=3.5 → 4.4 → 3.5V 7
Wire-break protection delay TOW 10 20 30 ms 7
Wire-break release delay TOWR 24 48 72 ms 7
CO high-level output resistance (dynamic H) RCOH 8 kΩ V1=V2=V3=V4=V5=V6=V7=3.5V, V1=4.4V, VCO=CO high output level -1.0V 7
CO low-level output resistance (dynamic H) RCOL 1 kΩ V1=V2=V3=V4=V5=V6=V7=3.5V, V1=3.5V, VCO=1.0V 7
Supply voltage VCC VCC -0.3 40 V referenced to VSS (printed VSS-0.3 ~ VSS+40) 6
Input voltage VCELL VCELL 0 12 V VC1-VC2 ... VC6-VC7, VC7-VSS 6
CO output terminal voltage VCO -0.3 V referenced to VSS; printed max is VCC+0.3 6
Operating ambient temperature TOPR -40 85 °C 6
Storage temperature range TSTG -55 125 °C 6

CAD (KiCad official)

  • Symbol: CM1270-ACA-A
  • Footprint: Package_SO:MSOP-10_3x3mm_P0.5mm
  • 3D model: MSOP-10 (KiCad packages3D, STEP)
  • 3D model files: cm1270-aca-a-etched.step / cm1270-aca-a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cm1270-aca-a.step / cm1270-aca-a.glb are the bare package body.

Provenance

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

  • Datasheet: iCM(创芯微) datasheet (15 pp, sha256 e42a770758de2c96, 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