Part Number: TPS4045BD
Function: CURRENT-LIMITED, POWER-DISTRIBUTION SWITCHE
Package: SOIC 8 pin, SOT-23 Type
Manufacturer: Texas Instruments
Pinouts:
Description:
The TPS2055B, TPS4045BD power-distribution switches are intended for applications where heavy capacitive loads and short circuits are likely to be encountered. These devices incorporate 70-mΩ N-channel MOSFET power switches for power-distribution systems that require multiple power switches in a single package.
Each switch is controlled by a logic-enable input. Gate drive is provided by an internal charge pump designed to control the power-switch rise times and fall times to minimize current surges during switching. The charge pump requires no external components and allows operation from supplies as low as 2.7 V.
Features
1. 70-mΩ High-Side MOSFET
2. 250-mA Continuous Current
3. Thermal and Short-Circuit Protection
4. Accurate Current Limit (0.3 A min, 0.7 A max)
5. Operating Range: 2.7 V to 5.5 V
6. Undervoltage Lockout
Applications:
1. Heavy Capacitive Loads
2. Short-Circuit Protections
Block Diagram :
Other data sheets are available within the file: 2046B, 2047B, TPS2046BD, TPS2046BDG4, TPS2046BDR
TPS4045BD Datasheet PDF Download
