Features
- 115VDC bootstrap supply maximum voltage supports 100V on the half-bridge
- 3A source and 4A sink gate driver
- Fast propagation delay: 30ns typical delay
- Integrated 0.5Ω typical bootstrap diode
- Wide 6V to 18V operating voltage range
- VDD and boot undervoltage lockout (UVLO)
- Robust noise tolerance: wide hysteresis at inputs
- HS pin tolerates up to -10V continuous
- Tri-Level PWM input with logic threshold levels set by external VREF pin from 2.7V to 5.5V
- Programmable dead time prevents shoot-through adjustable from 35ns to 350ns with a single resistor
Description
The RRP68145 is a 100V, 3A source, 4A sink high-frequency half-bridge MOSFET driver. The RRP68145 features a tri-level PWM input with programmable dead time. Its wide operating supply range of 6V to 18V and integrated high-side bootstrap diode supports driving the high-side and low-side NMOS in 100V half-bridge applications.
The RRP68145 features strong 3A source, 4A sink drivers with very fast 30ns typical propagation delay, making it optimal for high-frequency switching applications. VDD and boot UVLO protect against an undervoltage operation.
The tri-level input of the pulse-width modulation (PWM) pin controls the high-side and low-side drivers with a single pin. When the PWM input is at logic high, the high-side bridge FET is turned on and the low-side FET is off. When the input voltage is in the mid-level state, both the high-side and low-side bridge FETs are turned off. The PWM threshold levels are proportional to an external input reference voltage on the REF input voltage range (VREF) pin, allowing PWM operation across a 2.7V to 5.5V logic range.
The RRP68145 is offered in a 16 Ld 3mm x 3mm QFN package.
Parameters
| Attributes | Value |
|---|---|
| Bootstrap Supply Voltage (Max) (V) | 115 |
| VBIAS (Max) (V) | 18 |
| Peak Pull-up Current (A) | 3 |
| Peak Pull-down Current (A) | 4 |
| Turn-On Prop Delay (ns) | 70 |
| Turn-Off Prop Delay (ns) | 30 |
| Rise Time (μs) | 20 |
| Fall Time | 20ns |
| Input Logic Level | 5V |
| Qualification Level | Standard |
Package Options
| Pkg. Type | Pkg. Dimensions (mm) | Lead Count (#) | Pitch (mm) |
|---|---|---|---|
| QFN | 3.0 x 3.0 x 0.75 | 16 | 0.6 |
Applications
- Data center half-bridge and full-bridge DC/DC converters
- Hybrid switch cap converter
- H-Bridge motor driver
- Two-switch forward and active clamp converters
- Multiphase PWM DC/DC controllers
- Class-D amplifiers
Applied Filters: