BQ29419TIThe bq2941x is a secondary overvoltage protection IC for 2-, 3-, or 4-cell lithium-ion battery packs that incorporates a high-accuracy precision overvoltage detection circuit
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BQ29419TI
制造商:
TI
制造商型号#:
BQ29419
百芯编号#:
CM355901867
价格(CNY):
百芯库存:
245
个
库存地点:
可供应量:
185
个在库
此为供应商库存,需要与销售确认
产品描述:
The bq2941x is a secondary overvoltage protection IC for 2-, 3-, or 4-cell lithium-ion battery packs that incorporates a high-accuracy precision overvoltage detection circuit
The bq2941x is a secondary overvoltage protection IC for 2-, 3-, or 4-cell lithium-ion battery packs that incorporates a high-accuracy precision overvoltage detection circuit. It includes a programmable delay circuit for overvoltage detection time.
## FUNCTION
Each cell in a multiple-cell pack is compared to an internal reference voltage. If one cell reaches an overvoltage condition, the protection sequence begins. The bq2941x device starts charging an external capacitor through the CD pin. When the CD pin voltage reaches 1.2 V, the OUT pin changes from a low level to a high level.
2-, 3-, or 4-Cell SecondaryProtection
Low Power Consumption ICC < 2 µA [VCELL(ALL) < V(PROTECT)]
Fixed High Accuracy Overvoltage Protection Threshold
bq29410 = 4.35 V
bq29411 = 4.40 V
bq29412 = 4.45 V
bq29413 = 4.50 V
bq29414 = 4.55 V
bq29415 = 4.60 V
bq29419 = 4.30 V
Programmable Delay Time of Detection
High Power Supply Ripple Rejection
Stable During Pulse Charge Operation
APPLICATIONS
2nd-Level Overvoltage Protection in Li-Ion Battery Packs in: