CM1041-DT 4-Series Lithium-Ion/Polymer Battery Protection IC - TSSOP-16 Package

CM1041-DT 4-Series Lithium-Ion/Polymer Battery Protection IC - TSSOP-16 Package is a highly integrated battery protection IC designed for 4-cell (3S) lithium-ion and lithium-polymer battery packs. It provides precise monitoring of individual cell voltages 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, power tools, energy storage systems, and rechargeable battery packs.

CM1041-DT 4-Series Lithium-Ion/Polymer Battery Protection IC Datasheet

Features:

1. Designed for 4-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 reduce false triggering
11. Compact TSSOP-16 package
12. Ideal for Battery Management System (BMS) applications

Specifications:

Parameter	Value
Product Type	Battery Protection IC
Model	CM1041-DT
Battery Configuration	4-Series (4S) 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
Mounting Type	Surface Mount (SMD)
Applications	Battery Management Systems, Rechargeable Battery Packs, Power Tools, Portable Electronics, Energy Storage Systems
Package	TSSOP-16
Compliance	RoHS

Pin Discription:-

Pin	Name	Description
1	VCC	Battery pack positive supply input (Cell 1 positive terminal)
2	VC1	Cell 1 positive voltage sensing input
3	VC2	Cell 1 negative / Cell 2 positive voltage sensing input
4	VC3	Cell 2 negative / Cell 3 positive voltage sensing input
5	VC4	Cell 3 negative / Cell 4 positive voltage sensing input
6	NC	No Connection (leave floating)
7	VSS	Battery pack negative (Ground, Cell 4 negative terminal)
8	TOC	Overcharge protection delay capacitor connection
9	TOD	Over-discharge protection delay capacitor connection
10	TEC	Overcurrent protection delay capacitor connection
11	RTS	NTC temperature sensor input
12	RTV	Temperature threshold adjustment resistor connection
13	VINI	Overcurrent detection (current sense) input
14	DO	Discharge MOSFET gate output
15	CO	Charge MOSFET gate output
16	VM	Overcurrent protection lock, charger detection, and load detection input

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Package Includes:

1 x CM1041-DT 4-Series Lithium-Ion/Polymer Battery Protection IC - TSSOP-16 Package