CM1031-DT 3-Series Lithium-Ion/Polymer Battery Protection IC - TSSOP-16 Package

CM1031-DT 3-Series Lithium-Ion/Polymer Battery Protection IC - TSSOP-16 Package is a highly integrated battery protection IC designed for 3-cell (3S) lithium-ion and lithium-polymer battery packs. It provides accurate monitoring of each cell voltage and offers comprehensive protection against overcharge, over-discharge, overcurrent, short-circuit, and charging overcurrent conditions. Housed in a compact TSSOP-16 package, the IC is ideal for battery management systems (BMS), portable electronics, energy storage devices, power tools, and other rechargeable battery applications.

CM1031-DT 3-Series Lithium Battery Protection IC - TSSOP-16 Package Datasheet

Features:

1. Designed for 3-series (3S) Li-ion/Li-polymer battery packs
2. High-accuracy individual cell voltage monitoring
3. Overcharge protection
4. Over-discharge protection
5. Charge overcurrent protection
6. Discharge overcurrent protection
7. Short-circuit protection
8. Low standby current for extended battery life
9. Automatic recovery after fault removal
10. Built-in delay timing to prevent false triggering
11. Compact TSSOP-16 package
12. Suitable for Battery Management System (BMS) applications

Specifications:

Parameter	Value
Product Type	Battery Protection IC
Model	CM1031-DT
Battery Configuration	3-Series (3S) Lithium-Ion / Lithium-Polymer
Package Type	TSSOP-16
Cell Monitoring	Individual Cell Voltage Detection
Protection Functions	Overcharge, Over-discharge, Overcurrent, Charge Overcurrent, Short Circuit
Overcharge Detection	Supported
Over-discharge Detection	Supported
Overcurrent Detection	Supported
Short Circuit Protection	Supported
Operating Voltage	Suitable for 3S Li-ion/Li-Po Battery Packs
Standby Current	Low Power Consumption
Operating Temperature	-40°C to +85°C
Applications	Battery Management Systems, Power Banks, Portable Electronics, Energy Storage, Power Tools, Rechargeable Battery Packs
Mounting Type	Surface Mount (SMD)
Package	TSSOP-16
Compliance	RoHS

Pinout

Pin	Name	Function
1	VCC	Battery pack positive (Cell 1 positive)
2	VC1	Cell 1 positive sensing
3	VC2	Cell 1− / Cell 2+ sensing
4	VC3	Cell 2− / Cell 3+ sensing
5	NC	No Connection
6	NC	No Connection
7	VSS	Battery pack negative (Ground)
8	TOC	Overcharge delay capacitor
9	TOD	Over-discharge delay capacitor
10	TEC	Overcurrent delay capacitor
11	RTS	NTC temperature sensor input
12	RTV	Temperature threshold resistor
13	VINI	Current sense input
14	DO	Discharge MOSFET gate output
15	CO	Charge MOSFET gate output
16	VM	Charger/load detection & overcurrent monitor

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Package Includes:

1 x CM1031-DT 3-Series Lithium-Ion/Polymer Battery Protection IC - TSSOP-16 Package