Overview
The NCV51511PDR2G, produced by onsemi, is a high-frequency, high side and low side gate driver IC designed for driving MOSFETs in high-voltage, high-speed applications. This device is particularly suited for operating up to 80 V and is integrated with a bootstrap diode to support the high side driver bias supply. The NCV51511PDR2G features low delay times and matched PWM input propagation delays, enhancing its performance in various configurations such as half-bridge or synchronous buck converters.
Key Specifications
| Parameter | Min. | Typ. | Max. | Units |
|---|---|---|---|---|
| VDD (Low-Side and Logic Fixed Supply Voltage) | -0.3 | - | 18 | V |
| VHS (High-Side Floating Supply Offset Voltage) | -1 | - | 100 | V |
| Output Current Capability (Source/Sink) | - | 3 A / 6 A | - | A |
| Rise/Fall Times (Typical, CLOAD = 1 nF) | - | 6 ns / 4 ns | - | ns |
| Propagation Delay Times (Typical) | - | 30 ns | - | ns |
| Delay Matching (Typical) | - | 2 ns | - | ns |
| Operating Temperature Range | -40 | - | 150 | °C |
Key Features
- Drives two N-Channel MOSFETs in high and low side configurations.
- Integrated bootstrap diode for high side gate drive with a supply voltage range up to 100 V.
- Output current capability of 3 A source and 6 A sink.
- Drives 1 nF load with typical rise/fall times of 6 ns/4 ns.
- TTL compatible input thresholds.
- Wide supply voltage range of 8 V to 16 V (absolute maximum 18 V).
- Fast propagation delay times and excellent delay matching.
- Under-Voltage Lockout (UVLO) protection for drive voltage.
- Automotive qualified to AEC-Q100 with an operating temperature range from -40°C to 150°C.
- Pb-free, halogen-free/BFR-free, and RoHS compliant.
Applications
- 48 V converters for Hybrid Electric Vehicles (HEV) and Electric Vehicles (EV).
- Half-bridge and full-bridge converters.
- Synchronous-buck converters.
Q & A
- What is the maximum operating voltage for the NCV51511PDR2G?
The NCV51511PDR2G can operate with supply voltages up to 80 V for the high-side driver and up to 18 V for the low-side and logic supply.
- What is the purpose of the integrated bootstrap diode?
The integrated bootstrap diode is used to generate the high side bias supply by charging the bootstrap capacitor connected between the HB and HS pins.
- What are the typical rise and fall times for the NCV51511PDR2G?
The typical rise and fall times are 6 ns and 4 ns, respectively, for a 1 nF load.
- What is the delay matching characteristic of the NCV51511PDR2G?
The delay matching is typically less than 10 ns between the high and low side drivers.
- Does the NCV51511PDR2G have Under-Voltage Lockout (UVLO) protection?
- What are the input logic thresholds for the NCV51511PDR2G?
The input logic thresholds are 2.2 V for the high state and 1.7 V for the low state.
- Is the NCV51511PDR2G automotive qualified?
- What is the operating temperature range of the NCV51511PDR2G?
The operating temperature range is from -40°C to 150°C.
- Is the NCV51511PDR2G RoHS compliant?
- What types of converters can the NCV51511PDR2G be used in?
The NCV51511PDR2G can be used in half-bridge, full-bridge, and synchronous-buck converters.
