SNVS412C April 2006 – September 2016 LM5109A
PRODUCTION DATA.
- 1 Features
- 2 Applications
- 3 Description
- 4 Revision History
- 5 Pin Configuration and Functions
- 6 Specifications
- 7 Detailed Description
- 8 Application and Implementation
- 9 Power Supply Recommendations
- 10Layout
- 11Device and Documentation Support
- 12Mechanical, Packaging, and Orderable Information
1 Features
- Drives Both a High-Side and Low-Side N-Channel MOSFET
- 1A peak Output Current (1.0A Sink / 1.0A Source)
- Independent TTL Compatible Inputs
- Bootstrap Supply Voltage to 108V DC
- Fast Propagation Times (30 ns Typical)
- Drives 1000 pF Load with 15ns Rise and Fall Times
- Excellent Propagation Delay Matching (2 ns Typical)
- Supply Rail Under-Voltage Lockout
- Low Power Consumption
- Pin Compatible with ISL6700
- Industry Standard SOIC-8 and Thermally Enhanced WSON-8 Package
2 Applications
- Current Fed Push-Pull Converters
- Half and Full Bridge Power Converters
- Solid State Motor Drives
- Two Switch Forward Power Converters
3 Description
The LM5109A 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 90V. The outputs are independently controlled with TTL 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. Under-voltage lockout is provided on both the low-side and the high-side power rails. The device is available in the SOIC and the thermally enhanced WSON packages.
Device Information(1)
| PART NUMBER | PACKAGE | BODY SIZE (NOM) |
|---|---|---|
| LM5109A | SOIC (8) | 4.90 mm × 3.91 mm |
| WSON (8) | 4.00 mm × 4.00 mm |
- For all available packages, see the orderable addendum at the end of the datasheet.
Simplified Application Diagram
