Overview
The MC33152P, produced by onsemi, is a dual noninverting high-speed driver designed to interface low current digital circuitry with power MOSFETs. This device is constructed using 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
| Characteristics | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Power Supply Voltage | VCC | - | - | 20 | V |
| Logic Inputs | Vin | -0.3 | - | +VCC | V |
| Totem Pole Sink or Source Current | IO | - | - | 1.5 | A |
| Diode Clamp Current (Drive Output to VCC) | IO(clamp) | - | - | 1.0 | A |
| Operating Junction Temperature | TJ | - | - | +150 | °C |
| Operating Ambient Temperature | TA | -40 | - | +85 | °C |
| Storage Temperature Range | Tstg | -65 | - | +150 | °C |
| Input Threshold Voltage | VIH/VIL | 0.8/1.75 | 1.58/2.6 | - | V |
| Output Rise Time (10% to 90%) @ CL = 1.0 nF | tr | - | 14 | - | ns |
| Output Fall Time (90% to 10%) @ CL = 1.0 nF | tf | - | 15 | - | ns |
| Power Supply Current (Standby) | ICC | - | 6.0 | - | mA |
| Operating Voltage | VCC | 6.1 | - | 18 | V |
| Startup Threshold | Vth | - | 5.8 | 6.1 | V |
Key Features
- Two independent channels with 1.5 A totem pole outputs, capable of sourcing and sinking high currents.
- CMOS/LSTTL compatible inputs with hysteresis for fast output switching independent of input transition time.
- Output rise and fall times of 15 ns with a 1000 pF load.
- Undervoltage lockout with hysteresis to prevent system erratic operation at low supply voltages.
- Internal diode to VCC for clamping positive voltage transients and NPN pullup transistor for negative output transients.
- Immune to output latchup conditions.
- Available in dual-in-line (PDIP-8) and surface mount (SOIC-8) packages.
Applications
- Switching power supplies.
- DC-to-DC converters.
- Capacitor charge pump voltage doublers/inverters.
- Motor controllers.
- Noise-sensitive applications where controlled MOSFET turn-on and turn-off times are necessary to reduce EMI.
Q & A
- What is the MC33152P used for?
The MC33152P is used to interface low current digital circuitry with power MOSFETs, particularly in applications requiring high-speed driving of large capacitive loads.
- What are the key features of the MC33152P?
Key features include CMOS/LSTTL compatible inputs, high current totem pole outputs, fast output switching, undervoltage lockout, and immunity to output latchup conditions.
- What are the typical applications of the MC33152P?
Typical applications include switching power supplies, DC-to-DC converters, capacitor charge pump voltage doublers/inverters, and motor controllers.
- What is the operating voltage range of the MC33152P?
The operating voltage range is from 6.1 V to 18 V.
- What is the maximum current capability of the totem pole outputs?
The totem pole outputs can source and sink up to 1.5 A.
- How does the undervoltage lockout feature work?
The undervoltage lockout feature prevents system erratic operation at low supply voltages by ensuring the device operates only above a certain startup threshold (5.8 V to 6.1 V).
- What is the significance of input hysteresis in the MC33152P?
Input hysteresis provides fast output switching that is independent of the input signal transition time, preventing output oscillations as the input thresholds are crossed.
- How does the device protect against voltage 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 the available package types for the MC33152P?
The device is available in dual-in-line (PDIP-8) and surface mount (SOIC-8) packages.
- What is the operating ambient temperature range for the MC33152P?
The operating ambient temperature range is from -40°C to +85°C.
