Overview
The MC33982CHFKR2, produced by NXP USA Inc., is a single intelligent high-current self-protected high-side switch. This device is designed to replace electromechanical relays, fuses, and discrete devices in power management applications. It is particularly suited for harsh environments and features self-recovery capabilities, making it ideal for loads with high inrush current, as well as motors and various types of resistive and inductive loads.
Key Specifications
| Characteristic | Min | Typ | Max | Unit | Notes |
|---|---|---|---|---|---|
| RDSON | - | - | 2.0 | mΩ | - |
| Operating Voltage | 6.0 | - | 27 | V | - |
| Standby Current | - | - | 5.0 | μA | - |
| Overtemperature Shutdown | 160 | 175 | 190 | °C | - |
| Output Negative Clamp Voltage | -20 | - | -15 | V | Output OFF, 0.5 A < IHS < 2.0 A |
| Package Type | - | - | 16-Pin PQFN | - | Non-leaded, exposed tabs |
Key Features
- Single 2.0 mΩ max high-side switch with parallel input or SPI control.
- SPI-programmable fault trip thresholds for optimal performance adjustment.
- Output current monitoring with two SPI-selectable current ratios.
- SPI control of overcurrent limit, overcurrent fault blanking time, output OFF open load detection, output ON/OFF control, watchdog timeout, slew rates, and fault status reporting.
- SPI status reporting of overcurrent, open and shorted loads, overtemperature shutdown, undervoltage and overvoltage shutdown, Fail-safe pin status, and program status.
- Enhanced -16 V reverse polarity VPWR protection.
- Dedicated parallel input for alternate and pulse-width modulation (PWM) control of the output.
Applications
- DC motor or solenoid control.
- Resistive and inductive loads management.
- Low-voltage lighting systems.
- Power management in harsh environments.
Q & A
- What is the primary function of the MC33982CHFKR2? The MC33982CHFKR2 is a single intelligent high-current self-protected high-side switch designed to replace electromechanical relays, fuses, and discrete devices in power management applications.
- What is the maximum RDSON of the MC33982CHFKR2? The maximum RDSON is 2.0 mΩ.
- What is the operating voltage range of the MC33982CHFKR2? The operating voltage range is from 6.0 V to 27 V.
- How is the device controlled and programmed? The device is controlled and programmed via the Serial Peripheral Interface (SPI) and also has a dedicated parallel input for alternate and PWM control.
- What types of loads can the MC33982CHFKR2 handle? The device can handle loads with high inrush current, as well as motors and all types of resistive and inductive loads.
- What is the package type of the MC33982CHFKR2? The device is packaged in a 16-Pin PQFN non-leaded package with exposed tabs.
- What is the overtemperature shutdown range of the MC33982CHFKR2? The overtemperature shutdown range is from 160°C to 190°C.
- Does the MC33982CHFKR2 have reverse polarity protection? Yes, it has enhanced -16 V reverse polarity VPWR protection.
- How is output current monitoring implemented in the MC33982CHFKR2? Output current monitoring is implemented via the CSNS pin, which outputs a current proportional to the high-side output current.
- What are some of the SPI-programmable features of the MC33982CHFKR2? Features include overcurrent limit, overcurrent fault blanking time, output OFF open load detection, output ON/OFF control, watchdog timeout, slew rates, and fault status reporting.
