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CM1032-EM

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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CM1032-EM

iCM(创芯微) · IC · MSOP-10

CM1032-EM 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 VC1 power_in Chip power supply pin, connected to the positive terminal of battery 1, with absolute maximum VC1 to VSS of -0.3 V to +30 V.
2 VC2 input Connects the negative terminal of battery 1 and the positive terminal of battery 2 for cell voltage sensing, with each cell-voltage absolute maximum of -0.3 V to 6.5 V.
3 VC3 input Connects the negative terminal of battery 2 and the positive terminal of battery 3 for cell voltage sensing, with each cell-voltage absolute maximum of -0.3 V to 6.5 V.
4 VSS power_in Chip ground and connection to the negative terminal of battery 3, the reference for all voltage ratings on the device.
5 RTS input Connects to the NTC thermistor for temperature detection, with input voltage absolute range VSS-0.3 V to VSS+6.5 V.
6 RTV passive Connects through a resistor to the RTS terminal to set the high-temperature protection point (RT = 3 x RNTC), with input voltage absolute range VSS-0.3 V to VSS+6.5 V.
7 VIN power_in Discharge overcurrent and short-circuit detection input, with absolute range VSS-0.3 V to VSS+6.5 V and thresholds of 0.100 V (VEC1), 0.200 V (VEC2), 0.400 V (VSHORT) and -0.100 V (charge overcurrent VCHA).
8 DO output Discharge MOSFET control output, with voltage range VSS-0.3 V to VCC+0.3 V.
9 CO output Charge MOSFET control output, with voltage range VCC-20 V to VCC+0.3 V.
10 VM input Charger and load detection terminal, with input voltage range VCC-20 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 IVC1 12 20 μA V1=V2=V3=3.5V, VM=0V 6
Sleep current ISTB 5 6.5 μA V1=V2=V3=2.0V, VM=4V 6
Overcharge protection voltage VOC 4.225 4.25 4.275 V V1=V2=3.5V, V3=3.5→4.4V 6
Overcharge release voltage VOCR 4 4.05 4.1 V V1=V2=3.5V, V3=4.4→3.5V 6
Overcharge protection delay TOC 0.5 1 1.5 s V1=V2=3.5V, V3=3.5→4.4V 6
Overdischarge protection voltage VOD 2.42 2.5 2.58 V V1=VC2=3.5V, V3=3.5→2.0V 6
Overdischarge release voltage VODR 2.9 3 3.1 V V1=V2=3.5V, V3=2.0→3.5V 6
Overdischarge protection delay TOD 0.5 1 1.5 s V1=V2=3.5V, V3=3.5→2.0V 6
Discharge overcurrent 1 protection voltage VEC1 0.085 0.1 0.115 V V1=V2=V3=3.5V, VIN=0→0.12V 6
Discharge overcurrent 1 protection delay TEC1 0.5 1 1.5 s V1=V2=V3=3.5V, VIN=0→0.12V 6
Discharge overcurrent 2 protection voltage VEC2 0.17 0.2 0.23 V V1=V2=V3=3.5V, VIN=0→0.3V 6
Discharge overcurrent 2 protection delay TEC2 50 100 150 ms V1=V2=V3=3.5V, VIN=0→0.3V 6
Short-circuit protection voltage VSHORT 0.34 0.4 0.46 V V1=V2=V3=3.5V, VIN=0→0.8V 6
Short-circuit protection delay TSHORT 100 300 500 μs V1=V2=V3=3.5V, VIN=0→0.8V 6
Discharge overcurrent release delay TECR 24 48 72 ms V1=V2=V3=3.5V, VIN=0.8→0V, VM=VC1→0V 6
Charge overcurrent protection voltage VCHA -0.13 -0.1 -0.07 V V1=V2=V3=3.5V, VIN=0→-0.5V 6
Charge overcurrent protection delay TCHA 10 20 30 ms V1=V2=V3=3.5V, VIN=0→-0.5V 6
Charge overcurrent release delay TCHAR 24 48 72 ms V1=V2=V3=3.5V, VIN=-0.5V→0V 6
Wire-break protection delay TOW 10 20 30 ms 6
Wire-break release delay TOWR 24 48 72 ms 6
Charge high-temperature protection temperature (offset from TCH) TCH -5 5 °C V1=V2=V3=3.5V, RTS=100K→10K 6
Charge high-temperature recovery temperature (offset from TCHR) TCHR -5 5 °C V1=V2=V3=3.5V, RTS=10K→100K 7
Discharge high-temperature protection temperature (offset from TDH) TDH -5 5 °C V1=V2=V3=3.5V, RTS=100K→10K 7
Discharge high-temperature recovery temperature (offset from TDHR) TDHR -5 5 °C V1=V2=V3=3.5V, RTS=10K→100K 7
Charge high-temperature protection delay DL_TCH 0.5 1 1.5 s V1=V2=V3=3.5V, RTS=100K→10K 7
Charge high-temperature recovery delay DL_CHR 64 128 192 ms V1=V2=V3=3.5V, RTS=10K→100K 7
Discharge high-temperature protection delay DL_DH 0.5 1 1.5 s V1=V2=V3=3.5V, RTS=100K→10K 7
Discharge high-temperature recovery delay DL_DHR 64 128 192 ms V1=V2=V3=3.5V, RTS=10K→100K 7
Discharge state detection voltage Vsts 1 4 7 mV V1=V2=V3=3.5V, VIN=0→10mV 7
Supply voltage (VC1 pin) VC1 -0.3 30 V Referenced to VSS (printed VSS-0.3 ~ VSS+30) 5
Cell voltage (VC1-VC2, VC2-VC3, VC3-VSS) VCELL -0.3 6.5 V Per cell pin pair 5
Input voltage 1 (RTS, RTV, VIN) VIN -0.3 6.5 V Referenced to VSS (printed VSS-0.3 ~ VSS+6.5) 5
Input voltage 2 (VM) VIN2 -20 0.3 V Referenced to VCC (printed VCC-20 ~ VCC+0.3) 5
CO output terminal voltage VCO -20 0.3 V Referenced to VCC (printed VCC-20 ~ VCC+0.3) 5
DO output terminal voltage VDO -0.3 0.3 V Min referenced to VSS (VSS-0.3); max referenced to VCC (VCC+0.3) 5
Operating ambient temperature TOPR -40 85 °C 5
Storage temperature range TSTG -55 125 °C 5

CAD (KiCad official)

  • Symbol: CM1032-EM
  • Footprint: Package_SO:MSOP-10_3x3mm_P0.5mm
  • 3D model: MSOP-10 (KiCad packages3D, STEP)
  • 3D model files: cm1032-em-etched.step / cm1032-em-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cm1032-em.step / cm1032-em.glb are the bare package body.

Provenance

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

  • Datasheet: iCM(创芯微) datasheet (16 pp, sha256 e6384529937bd3a1, 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