NCP81258H Overview
Pin Name Description 1 BST Floating bootstrap supply pin for the high−side gate driver. Connect the external bootstrap ca- pacitor between this pin and SW. PWM = High ³ DRVH is high, DRVL is low.
NCP81258H Key Features
- Space-efficient 2 mm x 2 mm DFN8 Thermally-enhanced Package
- VCC Range of 4.5 V to 13.2 V
- Internal Bootstrap Diode
- 5 V 3-stage PWM Input
- Zero Current Detect Function Provides Power Saving Operation
- Bi-directional Enable Feature pulls Enable Pin Low during a UVLO
- Pre-OVP Function Protects Load during HS FET Short
- Adaptive Anti-cross Conduction Circuit Protects against
- Output Disable Control Turns Off Both MOSFETs via Enable Pin
- VCC Undervoltage Lockout
NCP81258H Applications
- Power Solutions for Notebook and Desktop Systems