Texas Instruments bq29413
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. The bq2941x device starts charging an external capacitor through the CD pin.| Part No. | bq29413 |
|---|---|
| Datasheet | bq29413 Download |
| Manufacturer |  Texas Instruments |
| Description | VOLTAGE PROTECTION |
| Buy | Stock & Price |
FEATURES
1● 2-, 3-, or 4-Cell Secondary Protection
● 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 EquipmentDESCRIPTION
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. When the CD pin voltage reaches 1.2 V, the OUT pin changes from a low level to a high level. DCT PACKAGE (TOP VIEW) OUT 1 VDD 2 CD 3 VC4 4 8 VC1 7 VC2 6 VC3 5 GND VC1 VC2 VC3 GND PW PACKAGE (TOP VIEW) 1 8 2 7 3 6 4 5 OUT VDD CD VC4 1 Please be aware that an im...
