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Lithium Battery Management IC
TMI4042-3/4 lithium battery protection
3/4 series rechargeable lithium battery protection
The TMI4042 series products are ICs used for the protection of 3 or 4 series rechargeable lithium batteries, which can provide high-precision overcharge protection voltage, overdischarge protection voltage and discharge overcurrent protection voltage. The overcharge protection delay, overdischarge protection delay and discharge overcurrent 1 delay of TMI4042 can be adjusted by external capacitors. In addition, TMI4042 has
The 0V charging function improves the service life of the pack.
The 0V charging function improves the service life of the pack.
Hotline:138 2870 3807
Description
1 Overview
The TMI4042 series products are ICs used for the protection of 3 or 4 series rechargeable lithium batteries, which can provide high-precision overcharge protection voltage, overdischarge protection voltage and discharge overcurrent protection voltage. The overcharge protection delay, overdischarge protection delay and discharge overcurrent 1 delay of TMI4042 can be adjusted by external capacitors. In addition, TMI4042 has a 0V charging function to increase the service life of the pack.
TMI4042 is suitable for protecting 3/4 string lithium battery packs, and the SEL pin is used to select 3/4 string applications.
2. Features
High-precision voltage detection function:
High voltage mode (applicable to liquid lithium ion batteries, polymer lithium ion batteries, etc.) Overcharge protection voltage VOV: 3.9V-4.4V (50mV gear)
Accuracy: ±25mV
Overcharge release voltage: 3.8V-4.4V Accuracy: ±50mV
Over-discharge protection voltage VUV: 2.0V-3.0V (Gear 100mV) Accuracy: ±80mV
Over-discharge release voltage: 2.0V-3.4V Accuracy: ±100mV
Low voltage mode (applicable to liquid lithium ion batteries, polymer lithium ion batteries, etc.) Overcharge protection voltage VOV: 3.4V-3.9V (50mV gear)
Accuracy: ±25mV
Overcharge release voltage: 3.3V-3.9V Accuracy: ±50mV
Over-discharge protection voltage VUV: 1.8V-2.8V (Gear 100mV) Accuracy: ±80mV
Over-discharge release voltage: 1.8V-3.2V Accuracy: ±100mV
Discharge overcurrent detection function:
Overcurrent 1 protection voltage VIV1: 0.05V-0.3V (gear 12.5mV) Overcurrent 1 protection voltage accuracy: ±12.5mV
Overcurrent 2 protection voltage VIV2: 0.5V
Overcurrent 2 protection voltage accuracy: ±25mV
Short circuit detection function:
Short-circuit protection voltage VSC: VC1-1.2V Short-circuit protection voltage accuracy: ±200mV
The external capacitor sets overcharge protection delay, overdischarge protection delay and discharge overcurrent 1 protection delay
Discharge overcurrent protection 2 time delay and short circuit protection time delay are fixed
Operating voltage range: 3V-30V
Operating temperature range: -40°C ～85°C
Low power design:
Normal working power consumption: 16μA (typical value)
Sleep mode power consumption: 1uA (typical value)
The TMI4042 series products are ICs used for the protection of 3 or 4 series rechargeable lithium batteries, which can provide high-precision overcharge protection voltage, overdischarge protection voltage and discharge overcurrent protection voltage. The overcharge protection delay, overdischarge protection delay and discharge overcurrent 1 delay of TMI4042 can be adjusted by external capacitors. In addition, TMI4042 has a 0V charging function to increase the service life of the pack.
TMI4042 is suitable for protecting 3/4 string lithium battery packs, and the SEL pin is used to select 3/4 string applications.
2. Features
High-precision voltage detection function:
High voltage mode (applicable to liquid lithium ion batteries, polymer lithium ion batteries, etc.) Overcharge protection voltage VOV: 3.9V-4.4V (50mV gear)
Accuracy: ±25mV
Overcharge release voltage: 3.8V-4.4V Accuracy: ±50mV
Over-discharge protection voltage VUV: 2.0V-3.0V (Gear 100mV) Accuracy: ±80mV
Over-discharge release voltage: 2.0V-3.4V Accuracy: ±100mV
Low voltage mode (applicable to liquid lithium ion batteries, polymer lithium ion batteries, etc.) Overcharge protection voltage VOV: 3.4V-3.9V (50mV gear)
Accuracy: ±25mV
Overcharge release voltage: 3.3V-3.9V Accuracy: ±50mV
Over-discharge protection voltage VUV: 1.8V-2.8V (Gear 100mV) Accuracy: ±80mV
Over-discharge release voltage: 1.8V-3.2V Accuracy: ±100mV
Discharge overcurrent detection function:
Overcurrent 1 protection voltage VIV1: 0.05V-0.3V (gear 12.5mV) Overcurrent 1 protection voltage accuracy: ±12.5mV
Overcurrent 2 protection voltage VIV2: 0.5V
Overcurrent 2 protection voltage accuracy: ±25mV
Short circuit detection function:
Short-circuit protection voltage VSC: VC1-1.2V Short-circuit protection voltage accuracy: ±200mV
The external capacitor sets overcharge protection delay, overdischarge protection delay and discharge overcurrent 1 protection delay
Discharge overcurrent protection 2 time delay and short circuit protection time delay are fixed
Operating voltage range: 3V-30V
Operating temperature range: -40°C ～85°C
Low power design:
Normal working power consumption: 16μA (typical value)
Sleep mode power consumption: 1uA (typical value)
Tel：138 2870 3807
Wechat：HLECSIT
Address：5 / F, building 1, yibaolai industrial town, Fuyong Fuhai street, Bao'an District, Shenzhen