Overview
The MC33151PG, produced by Onsemi, is a high-speed dual MOSFET driver designed for applications requiring low current digital circuitry to drive large capacitive loads with high slew rates. This device is part of the MC34151/MC33151 family, which features low input current, making them compatible with CMOS and LSTTL logic. The drivers include input hysteresis for fast output switching, two high current totem pole outputs, and an undervoltage lockout with hysteresis to prevent erratic system operation at low supply voltages.
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 |
| Output Fall Time (90% to 10%, CL = 1.0 nF) | 16 | ns |
| Propagation Delay (10% Input to 10% Output, CL = 1.0 nF) | 35 (Rise), 36 (Fall) | ns |
| Standby Current | 6.0 | mA |
| Operating Ambient Temperature | -40 to +85 | °C |
| Package Type | PDIP-8 |
Key Features
- Two independent channels with 1.5 A totem pole output
- CMOS/LSTTL compatible inputs with hysteresis
- Undervoltage lockout with hysteresis
- Low standby current
- Efficient high frequency operation
- Enhanced system performance with common switching regulator control ICs
- Pin out equivalent to DS0026 and MMH0026
- Pb-Free and Halide-Free devices
Applications
The MC33151PG is typically used in various 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 MC33151PG?
The MC33151PG is a high-speed dual MOSFET driver designed to drive large capacitive loads with high slew rates.
- What are the compatible logic families for the MC33151PG inputs?
The inputs are compatible with CMOS and LSTTL logic families.
- What is the maximum output current of the MC33151PG?
The maximum output current is 1.5 A for both source and sink operations.
- What is the purpose of the undervoltage lockout in the MC33151PG?
The undervoltage lockout prevents erratic system operation at low supply voltages by forcing the drive outputs into a low state until the supply voltage reaches a safe threshold.
- What are the typical applications of the MC33151PG?
Typical applications include switching power supplies, DC to DC converters, capacitor charge pump voltage doublers/inverters, and motor controllers.
- What is the operating ambient temperature range for the MC33151PG?
The operating ambient temperature range is -40°C to +85°C.
- What type of package is the MC33151PG available in?
The MC33151PG is available in a PDIP-8 package.
- Does the MC33151PG have any thermal protection features?
No, the MC33151PG does not have built-in overcurrent or thermal protection; thus, output shorting to VCC or ground must be avoided.
- How does the MC33151PG handle output ringing during transitions?
The device includes internal diodes to clamp positive voltage transients and an NPN pullup transistor to handle negative output transients.
- Is the MC33151PG Pb-Free and Halide-Free?
