LM5109B High Voltage 1A Peak Half Bridge Gate Driver | TI.com

LM5109B (ACTIVE) High Voltage 1A Peak Half Bridge Gate Driver

 

Recommended alternative parts

  • LM5102  -  Has Programmable Rising Edge Delay
  • LM5104  -  Single PWM Input, Has Adaptive Deadtime With Programmable Delay

Description

The LM5109B device is a cost-effective, high-voltage gate driver designed to drive both the high-side and the low-side N-channel MOSFETs in a synchronous buck or a half-bridge configuration. The floating high-side driver is capable of working with rail voltages up to 90 V. The outputs are independently controlled with cost-effective TTL and CMOS-compatible input thresholds. The robust level shift technology operates at high speed while consuming low power and providing clean level transitions from the control input logic to the high-side gate driver. Undervoltage lockout is provided on both the low-side and the high-side power rails. The device is available in the 8-pin SOIC and thermally-enhanced 8-pin WSON packages.

Features

  • Drives Both a High-Side and Low-Side N-Channel MOSFET
  • 1-A Peak Output Current (1.0-A Sink and 1.0-A Source)
  • Inputs Compatible With Independent TTL and CMOS
  • Bootstrap Supply Voltage to 108-V DC
  • Fast Propagation Times (30 ns Typical)
  • Drives 1000-pF Load With 15-ns Rise and Fall Times
  • Excellent Propagation Delay Matching (2 ns Typical)
  • Supply Rail Undervoltage Lockout
  • Low Power Consumption
  • 8-Pin SOIC and Thermally-Enhanced 8-Pin WSON Package

Parametrics

Compare all products in Half-bridge drivers Email Download to Excel
Part number Order Number of channels (#) Power switch Bus voltage (Max) (V) Peak output current (A) Input VCC (Min) (V) Input VCC (Max) (V) Rise time (ns) Fall time (ns) Prop delay (ns) Iq (uA) Input threshold Channel input logic Negative voltage handling at HS pin (V) Features Rating Operating temperature range (C) Package Group
LM5109B Order now 2     MOSFET     90     1     8     14     15     15     25     10     TTL     TTL     -1    
   
Catalog     -40 to 125     SOIC | 8
WSON | 8    
LM5101B Order now 2     MOSFET     100     2     9     14     10     10     25     10     TTL     TTL     -1    
   
Catalog     -40 to 125     SOIC | 8
WSON | 10    
LM5101C Order now 2     MOSFET     100     1     9     14     10     10     25     10     TTL     TTL     -1    
   
Catalog     -40 to 125     MSOP-PowerPAD | 8
SOIC | 8
WSON | 10    
LM5102 Order now 2     MOSFET     100     2     9     14     10     10     35     10     TTL     TTL     -1    
   
Catalog     -40 to 125     VSSOP | 10
WSON | 10    
LM5104 Order now 2     MOSFET     100     2     9     14     10     10     35     10     TTL     TTL     -1