component
CM1270-ACA-A
Public Made by Adomby adom
iCM(创芯微) , MSOP-10. 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
markdownCM1270-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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);cm1270-aca-a.step/cm1270-aca-a.glbare 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, 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).