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CM1270-LCA-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-LCA-A

iCM(创芯微) · IC · MSOP-10

CM1270-LCA-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 supply voltage is VSS-0.3 V to VSS+40 V.
2 VC1 input Positive voltage terminal of cell 1 for overcharge voltage detection; the cell-to-cell input voltage (VC1-VC2) is limited to 0 to 12 V absolute maximum.
3 VC2 input Positive voltage terminal of cell 2 and negative connection of cell 1; the cell input voltage (VC2-VC3) is limited to 0 to 12 V absolute maximum.
4 VC3 input Positive voltage terminal of cell 3 and negative connection of cell 2; the cell input voltage (VC3-VC4) is limited to 0 to 12 V absolute maximum.
5 VC4 input Positive voltage terminal of cell 4 and negative connection of cell 3; the cell input voltage (VC4-VC5) is limited to 0 to 12 V absolute maximum.
6 VC5 input Positive voltage terminal of cell 5 and negative connection of cell 4; the cell input voltage (VC5-VC6) is limited to 0 to 12 V absolute maximum.
7 VC6 input Positive voltage terminal of cell 6 and negative connection of cell 5; the cell input voltage (VC6-VC7) is limited to 0 to 12 V absolute maximum.
8 VC7 input Positive voltage terminal of cell 7 and negative connection of cell 6; the cell input voltage (VC7-VSS) is limited to 0 to 12 V absolute maximum.
9 VSS power_in Chip ground terminal, the reference for the supply and cell voltage limits.
10 CO output Charge-control connection that drives the external MOSFET for overcharge protection; the CO terminal 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; Ta=+25°C 7
Overcharge release voltage (printed as VOCR ±0.050 V; nominal VOCR not printed for this MPN) VOCR -0.05 0.05 V V1=V2=...=V7=3.5V, V1=4.4→3.5V; Ta=+25°C 7
Overcharge protection delay (printed as TOC ±50%; catalog TOC = 1 s for CM1270-LCA-A) TOC -50 50 % V1=V2=...=V7=3.5V, V1=3.5→4.4V; Ta=+25°C 7
Overcharge recovery delay TOCR 128 256 384 ms V1=V2=...=V7=3.5V, V1=4.4→3.5V; Ta=+25°C 7
Overcharge reset delay TRST 1 2.5 4 ms V1=V2=...=V7=3.5V, V1=3.5→4.4→3.5V; Ta=+25°C 7
Disconnect protection delay TOW 10 20 30 ms Ta=+25°C 7
Disconnect protection release delay TOWR 24 48 72 ms Ta=+25°C 7
Supply voltage (absolute maximum, referenced to VSS) VCC -0.3 40 V Referenced to VSS: printed as VSS-0.3 ~ VSS+40 V; Ta=+25°C unless noted 6
Cell input voltage (absolute maximum, each cell VC1-VC2 ... VC7-VSS) VCELL 0 12 V VC1-VC2, VC2-VC3, VC3-VC4, VC4-VC5, VC5-VC6, VC6-VC7, VC7-VSS; Ta=+25°C unless noted 6
CO output terminal voltage (absolute maximum) VCO -0.3 0.3 V Printed as VSS-0.3 ~ VCC+0.3 V: minimum offset is from VSS, maximum offset is from VCC; Ta=+25°C unless noted 6
Operating ambient temperature TOPR -40 85 °C 6
Storage temperature range TSTG -55 125 °C 6

CAD (KiCad official)

  • Symbol: CM1270-LCA-A
  • Footprint: Package_SO:MSOP-10_3x3mm_P0.5mm
  • 3D model: MSOP-10 (KiCad packages3D, STEP)
  • 3D model files: cm1270-lca-a-etched.step / cm1270-lca-a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cm1270-lca-a.step / cm1270-lca-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 bfdb452ec1827bd0, retrieved 2026-11-11, 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