TPB7462
TPB7462 is 4s High Accuracy Secondary Hardware Protector manufactured by 3PEAK.
Features
Applications
- Maximum Voltage Input 28V
- Wide Operation Voltage Range from 4V to 24V
- Low Current Consumption
- Normal Mode 4μA at +25°C
- Shutdown Mode 0.4μA at +25°C
- High Accuracy Voltage Detection Circuit for each cell
- Programmable Overcharge Threshold Voltage from 4.1V to 4.8V in 50m V step
- Overcharge Threshold Accuracy ±20m V
(+25°C)
- Overcharge Threshold Accuracy ±25m V (-
10°C to +60°C)
- Overcharge Hysteresis Voltage
- 380m V
- Internal Delay Timer for Overcharge
- Selectable Overcharge Detection Delay Time
2s, 4s, 6s, and 8s
- Selectable Delay Time for Shutdown 2s, 4s,
6s, and 8s
- High CO Pull Up Voltage
- Selectable CMOS Active High or Low output
- Test Mode to Shorten Mass Production Time
- Integrated Linear Regulator
- Selectable LDO Output 3.0V, and 3.3V
- LDO output Cut off Voltage 2.5V
- Output Current 2m A
- Short Circuit Protector
- Notebook
- Portable Equipment
Description
The TPB7462 series is a secondary overcharge hardware protector for 2s, 3s, or 4s lithium-ion battery packs TPB7462 series provides high accuracy overcharge threshold to avoid the safety risk from battery pack. It also provides the CTL pin to directly control output or connect PTC (Positive Temperature Coefficient) resistor to monitor overtemperature of battery pack. The TPB7462 integrates a LDO for powering external circuit with extremely low leakage current. TPB7462 is available in WDFN2x2-8 package. Its operation temperature range is from
- 40°C to +85°C.
Typical Application Circuit
Cell1 Cell2 Cell3 Cell4
R1
R2
C1...
