Overview
The NXP® MC33931EKR2 is a monolithic H-Bridge power IC designed primarily for automotive electronic throttle control and other low-voltage DC servo motor control applications. It is housed in a robust thermally enhanced package, ensuring high reliability and performance under stringent conditions. The IC meets the AEC-Q100 grade 1 qualification, making it suitable for demanding automotive environments.
Key Specifications
| Specification | Value |
|---|---|
| Supply Voltage Range | 5V to 28V |
| Peak Current Capability | Up to 5.0 A |
| RMS Current Capability | Subject to heat sinking |
| Logic Input Compatibility | 3.0 V and 5.0 V TTL / CMOS |
| Package Type | HSOP32, plastic, heat sink, small outline |
| Operating Temperature Range | −40 °C to 125 °C |
| Internal Peak-Current Limiting | Activated at load currents above 6.5 A ± 1.5 A |
| Output Short-Circuit Protection | Short to VPWR or GND |
Key Features
- Monolithic H-Bridge configuration for controlling inductive loads
- Internal peak-current limiting via constant-off-time PWM current regulation
- Output short-circuit protection with latch-off
- Temperature-dependent current limit threshold reduction
- Logic inputs with internal source/sink to define default states
- Analog feedback output for real-time monitoring of H-bridge high-side output currents
- Enable function with Sleep mode for low power consumption
Applications
- Automotive electronic throttle control (ETC)
- Exhaust gas recirculation (EGR)
- Turbo flap control
- Industrial and medical pumps and motor control
Q & A
- What is the primary application of the MC33931EKR2?
The MC33931EKR2 is primarily designed for automotive electronic throttle control and other low-voltage DC servo motor control applications. - What is the supply voltage range of the MC33931EKR2?
The supply voltage range is from 5V to 28V. - What is the peak current capability of the MC33931EKR2?
The peak current capability is up to 5.0 A. - Is the MC33931EKR2 AEC-Q100 qualified?
Yes, it is AEC-Q100 grade 1 qualified. - What type of logic inputs does the MC33931EKR2 support?
The IC supports 3.0 V and 5.0 V TTL / CMOS logic compatible inputs. - How does the MC33931EKR2 protect against overcurrent conditions?
The IC features internal peak-current limiting via constant-off-time PWM current regulation and output short-circuit protection. - What is the purpose of the analog feedback output in the MC33931EKR2?
The analog feedback output provides real-time monitoring of H-bridge high-side output currents, facilitating closed-loop operation for motor speed/torque or detection of open-load conditions. - How can the MC33931EKR2 be placed in a low power consumption mode?
The IC can be placed in a Sleep mode by setting the EN/D2 pin to a logic low state. - What is the operating temperature range of the MC33931EKR2?
The operating temperature range is from −40 °C to 125 °C. - What type of package is the MC33931EKR2 available in?
The IC is available in an HSOP32 package, which is a plastic, heat sink, small outline package.
