Overview
The MC34151DR2, produced by onsemi, is a high-speed dual MOSFET driver designed to interface low current digital circuitry with power MOSFETs. This device is constructed with Schottky clamped Bipolar Analog technology, offering high performance and ruggedness in hostile industrial environments. It features two independent channels with high current totem pole outputs, making it ideal for driving large capacitive loads with high slew rates.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Power Supply Voltage (VCC) | 6.5 to 18 | V |
| Logic Input Voltage Range | -0.3 to VCC | V |
| Drive Output Current (Sink or Source) | 1.5 | A |
| Diode Clamp Current (Drive Output to VCC) | 1.0 | A |
| Input Threshold Voltage | 1.58 to 2.6 | V |
| Input Current (High State) | -200 to -500 | μA |
| Input Current (Low State) | 20 to 100 | μA |
| Output Voltage (Low State) | 0.8 to 1.7 | V |
| Output Voltage (High State) | 10.5 to 11.2 | V |
| Propagation Delay (10% Input to 10% Output) | 35 to 100 | ns |
| Drive Output Rise Time (10% to 90%) | 14 to 31 | ns |
| Drive Output Fall Time (90% to 10%) | 16 to 32 | ns |
| Operating Junction Temperature | -40 to +150 | °C |
| Operating Ambient Temperature | -40 to +85 | °C |
Key Features
- Two independent channels with 1.5 A totem pole output
- CMOS and LSTTL logic compatible inputs with hysteresis
- Undervoltage lockout with hysteresis to prevent erratic system operation at low supply voltages
- Low standby current and efficient high-frequency operation
- Enhanced system performance with common switching regulator control ICs
- Pb-free and halide-free packaging
- Internal diode to VCC for clamping positive voltage transients and NPN pullup transistor for negative output transients
- High output current capability to quickly deliver the required gate charge for fast power-efficient MOSFET switching
Applications
- Switching power supplies
- DC to DC converters
- Capacitor charge pump voltage doublers/inverters
- Motor controllers
- Common switching regulators and CMOS/TTL logic devices
- Industrial environments requiring high performance and ruggedness
Q & A
- What is the primary function of the MC34151DR2?
The MC34151DR2 is a high-speed dual MOSFET driver designed to interface low current digital circuitry with power MOSFETs.
- What is the power supply voltage range for the MC34151DR2?
The power supply voltage range is from 6.5 V to 18 V.
- What is the maximum drive output current of the MC34151DR2?
The maximum drive output current is 1.5 A.
- Is the MC34151DR2 compatible with CMOS and LSTTL logic?
Yes, the MC34151DR2 has CMOS and LSTTL logic compatible inputs with hysteresis.
- What is the purpose of the undervoltage lockout in the MC34151DR2?
The undervoltage lockout prevents erratic system operation at low supply voltages by forcing the drive outputs into a low state as VCC rises from 1.4 V to the 5.8 V upper threshold.
- How does the MC34151DR2 handle output transients?
The device contains an internal diode to VCC for clamping positive voltage transients and an NPN pullup transistor for negative output transients.
- What are some typical applications of the MC34151DR2?
Typical applications include switching power supplies, DC to DC converters, capacitor charge pump voltage doublers/inverters, and motor controllers.
- What is the operating junction temperature range for the MC34151DR2?
The operating junction temperature range is from -40°C to +150°C.
- Is the MC34151DR2 Pb-free and halide-free?
Yes, the MC34151DR2 is Pb-free and halide-free.
- How does the MC34151DR2 enhance system performance in switching regulators?
The device enhances system performance by providing high current outputs and efficient high-frequency operation, making it compatible with common switching regulator control ICs.
- What are the package options available for the MC34151DR2?
The device is available in dual-in-line (PDIP-8) and surface mount (SOIC-8) packages.
