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Lithium Battery Management IC
TMI4021-Dual cell lithium battery protection
2 lithium ion/lithium polymer batteries for series connection
TMI4021 has a built-in high-precision voltage detection circuit and delay circuit, and is a protection IC for lithium-ion rechargeable batteries/lithium polymer rechargeable batteries.
TMI4021 is suitable for the protection of overcharge, overdischarge, charge overcurrent and discharge overcurrent of 2-cell lithium ion/lithium polymer battery packs used in series.
TMI4021 is suitable for the protection of overcharge, overdischarge, charge overcurrent and discharge overcurrent of 2-cell lithium ion/lithium polymer battery packs used in series.
Hotline:138 2870 3807
Description
Overview
TMI4021 has a built-in high-precision voltage detection circuit and delay circuit, which is used for the protection of lithium-ion rechargeable batteries/lithium polymer rechargeable batteries
IC.
TMI4021 is suitable for the protection of overcharge, overdischarge, charge overcurrent and discharge overcurrent of 2-cell lithium ion/lithium polymer battery packs used in series.
application
Lithium-ion rechargeable battery pack
Lithium polymer rechargeable battery pack
Features
High voltage device: Absolute maximum rating 32V
Built-in high-precision voltage detection circuit:
TMI4021 overcharge detection voltage 3..65±0.025V
Overdischarge detection voltage 2.0±0.08V
Discharge overcurrent 1 detection voltage 0.20±0.020V
3-stage discharge overcurrent detection (discharge overcurrent 1, discharge overcurrent 2 and load short-circuit detection)
Charge overcurrent detection function
Built-in delay capacitor, no need for external capacitor
With charging function to 0V battery
Low current consumption:
Typical value during operation: 7μA Maximum value during sleep: 0.1μA
Package form: SOT-23-6
TMI4021 has a built-in high-precision voltage detection circuit and delay circuit, which is used for the protection of lithium-ion rechargeable batteries/lithium polymer rechargeable batteries
IC.
TMI4021 is suitable for the protection of overcharge, overdischarge, charge overcurrent and discharge overcurrent of 2-cell lithium ion/lithium polymer battery packs used in series.
application
Lithium-ion rechargeable battery pack
Lithium polymer rechargeable battery pack
Features
High voltage device: Absolute maximum rating 32V
Built-in high-precision voltage detection circuit:
TMI4021 overcharge detection voltage 3..65±0.025V
Overdischarge detection voltage 2.0±0.08V
Discharge overcurrent 1 detection voltage 0.20±0.020V
3-stage discharge overcurrent detection (discharge overcurrent 1, discharge overcurrent 2 and load short-circuit detection)
Charge overcurrent detection function
Built-in delay capacitor, no need for external capacitor
With charging function to 0V battery
Low current consumption:
Typical value during operation: 7μA Maximum value during sleep: 0.1μA
Package form: SOT-23-6
Tel：138 2870 3807
Wechat：HLECSIT
Address：5 / F, building 1, yibaolai industrial town, Fuyong Fuhai street, Bao'an District, Shenzhen