BQ29419 - TI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

BQ29419
Manufacturer

TI
ChipWorker Part#

CW355901867
RoHS

Lead free / RoHS Compliant
Description

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
Documentation

Datasheet

BQ29419 Global Supplier

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BQ29419 Specifications

Attribute	Attribute Value

Part Number	BQ29419
Manufacturer	TI
ChipWorker Part#	CW355901867
Documentation	Datasheet
Mounting Style	Surface Mount
Case/Package	TSSOP-8
	expand all
RoHS	RoHS Compliant
Lead-Free Status	Lead Free

Product Description

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:
Notebook Computers
Portable Instrumentation
Portable Equipment

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