Overview
The MC34151DR2G, produced by onsemi, is a dual inverting high-speed driver designed to interface low current digital circuitry with power MOSFETs. This device is part of the MC34151/MC33151 series, which features low input current, making them compatible with CMOS and LSTTL logic. The MC34151DR2G is particularly suited for applications requiring high slew rates and the ability to drive large capacitive loads efficiently.
The device includes two independent channels with 1.5 A totem pole outputs, output rise and fall times of 15 ns with a 1000 pF load, and an undervoltage lockout with hysteresis to prevent erratic system operation at low supply voltages. It is available in SOIC-8 packages and is Pb-free and halide-free, ensuring environmental compliance.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Power Supply Voltage (VCC) | 6.5 to 18 | V |
| Logic Input Voltage (Vin) | -0.3 to VCC | V |
| Drive Output Current (Source/Sink) | 1.5 | A |
| Output Rise Time (10% to 90%, CL = 1.0 nF) | 14 ns | ns |
| Output Fall Time (90% to 10%, CL = 1.0 nF) | 16 ns | ns |
| Propagation Delay (10% Input to 10% Output, CL = 1.0 nF) | 35 ns (Rise), 36 ns (Fall) | ns |
| Operating Ambient Temperature | -40 to +85°C | °C |
| Package Type | SOIC-8 |
Key Features
- Two independent channels with 1.5 A totem pole outputs
- Output rise and fall times of 15 ns with a 1000 pF load
- CMOS/LSTTL compatible inputs with hysteresis for fast output switching
- 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, available in SOIC-8 packages
Applications
The MC34151DR2G is typically used in various high-speed switching applications, including:
- Switching power supplies
- DC to DC converters
- Capacitor charge pump voltage doublers/inverters
- Motor controllers
Q & A
- What is the primary function of the MC34151DR2G?
The MC34151DR2G is a dual inverting high-speed driver designed to interface low current digital circuitry with power MOSFETs.
- What are the typical output rise and fall times of the MC34151DR2G?
The output rise and fall times are 15 ns with a 1000 pF load.
- What is the maximum drive output current of the MC34151DR2G?
The device can source and sink up to 1.5 A per channel.
- What is the operating voltage range of the MC34151DR2G?
The operating voltage range is from 6.5 V to 18 V.
- What type of logic inputs does the MC34151DR2G support?
The device supports CMOS and LSTTL logic compatible inputs with hysteresis.
- What is the purpose of the undervoltage lockout in the MC34151DR2G?
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.
- In what package types is the MC34151DR2G available?
The device is available in SOIC-8 packages.
- Is the MC34151DR2G Pb-free and halide-free?
- What are some typical applications of the MC34151DR2G?
Typical applications include switching power supplies, DC to DC converters, capacitor charge pump voltage doublers/inverters, and motor controllers.
- How does the MC34151DR2G enhance system performance?
The device enhances system performance by providing efficient high-frequency operation and compatibility with common switching regulator control ICs.
