Features
| • | Drives both a high side and low side N-channel MOSFET |
| • | 1.8A peak gate drive current |
| • | Bootstrap supply voltage range up to 118V DC |
| • | Integrated bootstrap diode |
| • | Single TTL compatible Input |
| • | Programmable turn-on delays (Dead-time) |
| • | Enable Input pin |
| • | Fast turn-off propagation delays (26ns typical) |
| • | Drives 1000pF with 15ns rise and fall time |
| • | Supply rail under-voltage lockout |
| • | Low power consumption |
General Description
The LM5105 is a high voltage gate driver designed to drive both the high side and low side N -Channel MOSFETs in a synchronous buck or half bridge configuration. More...
| |
Typical Application
*click for larger image
| Parameters | Values |
|---|
| Topology |
Synchronous Buck, Bridge |
| Input Max Voltage |
100 Volt |
| Supply Min |
7.5 Volt |
| Supply Max |
14 Volt |
| Peak Sink Current |
2 Amp |
| Peak Source Current |
2 Amp |
| Output Rise Time (tr) |
10 ns |
| Output Fall Time tf |
10 ns |
| Bottom Driver Prop Delay |
35 ns |
| TopDriver PropDelay |
35 ns |
| PulseWidth Min |
50 ns |
| Quiescent Current |
0.4 mA |
| HighSide Drive |
Yes |
| LowSide Drive |
Yes |
| Outputs |
2 |
| LowGate Enable |
Yes |
| UVLO |
Yes |
| Shut down |
No |
| Internal BootDiode |
Yes |
| On/Off Pin |
No |
| Input Control |
Single PWM |
| RegType |
MOSFET Driver |
| Temperature Min |
-40 deg C |
| Temperature Max |
125 deg C |
Typical Performance
*click for larger image
| |
Also Recommended
| LM5100A▲ | 3A Half Bridge Driver CMOS-Type Threshold Inputs |
| LM5101A▲ | 3A Half Bridge Driver TTL-Type Threshold Inputs |
| LM5102▲ | Independently Programmable Delay (Rising Edge) |
| LM5104▲ | Single PWM Input, Has Adaptive Deadtime With Programmable Delay |
Additional Resources
Online Seminars
Application Notes
Block Diagram
click for larger image
|
RoHS Compliance Information
