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CM1042-DS

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iCM(创芯微) , SOP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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CM1042-DS

iCM(创芯微) · IC · SOP-16

CM1042-DS from iCM(创芯微), in a SOP-16. 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 Positive power supply input and positive connection of battery 1; VCC is rated VSS-0.3 V to VSS+40 V (absolute maximum), with an operating range of 5 V to 25 V.
2 VC1 power_in Positive voltage connection for battery 1; cell-sense inputs VC1-VC2, VC2-VC3, VC3-VC4 and VC4-VSS are rated 0 to 12 V.
3 VC2 power_in Negative voltage connection for battery 1 and positive voltage connection for battery 2; cell-sense input range is 0 to 12 V.
4 VC3 power_in Negative voltage connection for battery 2 and positive voltage connection for battery 3; cell-sense input range is 0 to 12 V.
5 VC4 power_in Negative voltage connection for battery 3 and positive voltage connection for battery 4; cell-sense input range is 0 to 12 V.
6 NC unconnected No-connect pin with no electrical connection function.
7 VSS power_in Chip ground and negative voltage connection for battery 4, serving as the reference for all voltage ratings.
8 NC unconnected No-connect pin with no electrical connection function.
9 NC unconnected No-connect pin with no electrical connection function.
10 TEC passive Discharge overcurrent delay adjustment terminal, where an external capacitor CTEC sets TEC1 = 10×CTEC (ms, with CTEC in nF); rated VSS-0.3 V to VSS+5.5 V.
11 RTS passive Connects to the NTC thermistor for temperature detection; rated VSS-0.3 V to VSS+5.5 V.
12 RTV passive Connects a resistor to RTS to set the high-temperature protection threshold, with RT equal to 3 times the NTC resistance at TCH; rated VSS-0.3 V to VSS+5.5 V.
13 VINI input Overcurrent detection input for charge and discharge current sensing; rated VSS-0.3 V to VCC+0.3 V.
14 DO output Discharge MOSFET control output, which turns off the discharge MOSFET on protection; rated VSS-0.3 V to VCC+0.3 V.
15 CO output Charge MOSFET control output, which turns off the charge MOSFET on protection; rated VSS-15 V to VCC+0.3 V.
16 VM input Charger and load detection terminal; rated VSS-15 V to VCC+0.3 V.

Key specifications

Parameter Value
Manufacturer iCM(创芯微)
Package SOP-16
Category
Pins 16

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Operating voltage (工作电压) VCC 5 25 V 6
Overcharge protection delay (过充电保护延时) TOC 0.5 1 1.5 s V1=V2=V3=V4=3.5V, V4=3.5 → 4.4V 6
Overcharge recovery delay (过充电恢复延时) TOCR 128 256 384 ms V1=V2=V3=V4=3.5V, V4=4.4 → 3.5V 6
Overdischarge release voltage (过放电解除电压) VODR -0.1 3 0.1 V V1=V2=V3=V4=3.5V, V4=2.0 → 3.5V 6
Overdischarge protection delay (过放电保护延时) TOD 0.5 1 1.5 s V1=V2=V3=V4=3.5V, V4=3.5 → 2.0V 6
Overdischarge recovery delay (过放电恢复延时) TODR 24 48 72 ms V1=V2=V3=V4=3.5V, V4=2.0 → 3.5V 6
Discharge overcurrent 1 protection voltage (放电过流1保护电压) VEC1 -0.01 0.1 0.01 V V1=V2=V3=V4=3.5V, VINI=0 → 0.12V 6
Discharge overcurrent 1 protection delay (放电过流1保护延时) TEC1 0.5 1 1.5 s V1=V2=V3=V4=3.5V, VINI=0 → 0.12V，CTEC=0.1μF 6
Discharge overcurrent 2 protection delay (放电过流2保护延时) TEC2 50 100 150 ms V1=V2=V3=V4=3.5V, VINI=0 → 0.35V 6
Short-circuit protection delay (短路保护延时) TSHORT 125 250 375 μs V1=V2=V3=V4=3.5V, VINI=0 → 0.8V 6
Discharge overcurrent release delay (放电过流解除延时) TECR 16 32 48 ms V1=V2=V3=V4=3.5V, VINI=0.8 → 0V 6
Charge overcurrent protection voltage (充电过流保护电压) VCHA -0.01 -0.05 0.01 V V1=V2=V3=V4=3.5V, VINI=0→ -1V 6
Charge overcurrent protection delay (充电过流保护延时) TCHA 128 256 384 ms V1=V2=V3=V4=3.5V, VINI=0→ -1V 6
Charge overcurrent release delay (充电过流解除延时) TCHAR 24 48 72 ms V1=V2=V3=V4=3.5V, VINI=-1V→0V 7
Open-wire protection delay (断线保护延时) TOW 260 520 780 ms 7
Open-wire release delay (断线解除延时) TOWR 24 48 72 ms 7
Charge high-temperature protection temperature tolerance (充电高温保护温度) TCH -5 5 °C V1=V2=V3=V4=3.5V, RNTC=100k → 10k 7
Charge high-temperature release temperature tolerance (充电高温解除温度) TCHR -5 5 °C V1=V2=V3=V4=3.5V, RNTC=10k → 100k 7
Discharge high-temperature protection temperature tolerance (放电高温保护温度) TDH -5 5 °C V1=V2=V3=V4=3.5V, RNTC=100k → 10k 7
Discharge high-temperature release temperature tolerance (放电高温解除温度) TDHR -5 5 °C V1=V2=V3=V4=3.5V, RNTC=10k → 100k 7
Charge high-temperature protection delay (充电高温保护延时) DTCH 0.5 1 1.5 s V1=V2=V3=V4=3.5V, RNTC=100k → 10k 7
Charge high-temperature release delay (充电高温解除延时) DTCHR 128 256 384 ms V1=V2=V3=V4=3.5V, RNTC=10k → 100k 7
Discharge high-temperature protection delay (放电高温保护延时) DTDH 0.5 1 1.5 s V1=V2=V3=V4=3.5V, RNTC=100k → 10k 7
Discharge high-temperature release delay (放电高温解除延时) DTDHR 128 256 384 ms V1=V2=V3=V4=3.5V, RNTC=10k → 100k 7
Charge low-temperature protection temperature tolerance (充电低温保护温度) TCL -5 5 °C V1=V2=V3=V4=3.5V, RNTC=100k → 3M 7
Charge low-temperature release temperature tolerance (充电低温解除温度) TCLR -5 5 °C V1=V2=V3=V4=3.5V, RNTC=3M → 100k 7
Discharge low-temperature protection temperature tolerance (放电低温保护温度) TDL -5 5 °C V1=V2=V3=V4=3.5V, RNTC=100k → 3M 7
Discharge low-temperature release temperature tolerance (放电低温解除温度) TDLR -5 5 °C V1=V2=V3=V4=3.5V, RNTC=3M → 100k 7
Charge low-temperature protection delay (充电低温保护延时) DTCL 0.7 1 1.3 s V1=V2=V3=V4=3.5V, RNTC=100k → 3M 7
Charge low-temperature release delay (充电低温解除延时) DTCLR 128 256 384 ms V1=V2=V3=V4=3.5V, RNTC=3M → 100k 7
Discharge low-temperature protection delay (放电低温保护延时) DTDL 0.7 1 1.3 s V1=V2=V3=V4=3.5V, RNTC=100k → 3M 7
Discharge low-temperature release delay (放电低温解除延时) DTDLR 128 256 384 ms V1=V2=V3=V4=3.5V, RNTC=3M → 100k 7
Discharge state detection voltage (放电状态检测电压) VSTS 1 4 7 mV V1=V2=V3=V4=3.5V, RNTC=10k, VINI=0→10mV 7
Absolute maximum supply voltage (电源电压) VCC -0.3 40 V 5
Absolute maximum input voltage 0 (cell inputs) VCELL 0 12 V 5
Absolute maximum input voltage 1 (RTS, RTV, TEC) VIN1 -0.3 5.5 V 5
Absolute maximum input voltage 2 (VM, CO) VIN2 -15 V 5
Absolute maximum input voltage 3 (VINI, DO) VIN3 -0.3 V 5
Operating ambient temperature (工作环境温度) TOPR -40 85 °C 5
Storage temperature (保存温度) TSTG -55 125 °C 5
Quiescent current in operation (正常工作电流) IVCC 12 18 μA V1=V2=V3=V4=3.5V 6
Quiescent current in sleep (休眠电流) ISTB 4 6 μA V1=V2=V3=V4=2.0V 6
VM-VSS resistance (VM-VSS 电阻) RVMS 70 kΩ V1=V2=V3=V4=3.5V, VINI=0.200V 7
CO/DO high output level, VCC>12V (CO、DO 高输出电平) VCOH, VDOH 10.8 V VCC>12V 8
CO high-level output resistance (CO 高电平输出电阻) RCOH 8 kΩ V1=V2=V3=V4=3.5V, VCO=CO 高输出电平-1.0V 8
DO high-level output resistance (DO 高电平输出电阻) RDOH 8 kΩ V1=V2=V3=V4=3.5V, VDO=DO 高输出电平-1.0V 8
DO low-level output resistance (DO 低电平输出电阻) RDOL 0.5 kΩ V1=V2=V3=3.5V, V4=1.5V, VDO=1.0V 8

CAD (KiCad official)

  • Symbol: CM1042-DS
  • Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
  • 3D model: SOP-16 (KiCad packages3D, STEP)
  • 3D model files: cm1042-ds-etched.step / cm1042-ds-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cm1042-ds.step / cm1042-ds.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 baf5d53c33930af9, 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