Overview
The DRV8244SQRYJRQ1 is a fully integrated H-bridge driver from Texas Instruments, designed for a wide range of automotive applications. This device is part of the DRV824x-Q1 family and is AEC-Q100 qualified, ensuring reliability and performance in harsh automotive environments. It operates within a temperature range of –40°C to +125°C and supports various control modes, including single full-bridge and two independent half-bridge configurations. The DRV8244SQRYJRQ1 is built using BiCMOS high power process technology, offering excellent power handling, thermal capability, and compact package size.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Voltage Range | 4.5 - 35 | V |
| Absolute Maximum Voltage | 40 | V |
| Maximum Output Current | 21 | A |
| PWM Frequency | Up to 25 kHz | - |
| Package Types | VQFN-HR (16 pins), HVSSOP (28 pins) | - |
| Package Size (VQFN-HR) | 3 mm x 6 mm | - |
| Package Size (HVSSOP) | 3 mm x 7.3 mm | - |
| On-Resistance (VQFN-HR) | 47 mΩ (R_ON_LS + R_ON_HS) | mΩ |
| On-Resistance (HVSSOP) | 60 mΩ (R_ON_LS + R_ON_HS) | mΩ |
| Sleep Current | 1 µA (typical at 25°C) | µA |
Key Features
- AEC-Q100 qualified for automotive applications with a temperature range of –40°C to +125°C.
- Integrated N-channel H-bridge, charge pump regulator, high-side current sensing with regulation, and current proportional output.
- Protection features against over current and over temperature, with fault indication on the nFAULT pin.
- Voltage monitoring and load diagnostics in both off-state and on-state to detect open load and short circuit.
- Configurable slew rate and spread spectrum clocking for low electromagnetic interference (EMI).
- Low-power sleep mode with a typical sleep current of 1 µA at 25°C.
- Supports 3.3-V and 5-V logic inputs.
- Three variants: hardwired interface (HW), and two SPI interface variants (SPI(P) and SPI(S)).
- Configurable control modes: single full bridge using PWM or PH/EN mode, and two half-bridges using Independent mode.
Applications
The DRV8244SQRYJRQ1 is designed for various automotive applications, including but not limited to:
- Electric power steering (EPS) systems.
- Electric brake systems.
- Automotive motor control systems.
- Other high-reliability automotive applications requiring robust motor control and diagnostics.
Q & A
- What is the operating voltage range of the DRV8244SQRYJRQ1?
The operating voltage range is 4.5 V to 35 V, with an absolute maximum voltage of 40 V.
- What are the package options available for the DRV8244SQRYJRQ1?
The device is available in VQFN-HR (16 pins) and HVSSOP (28 pins) packages.
- What is the maximum output current of the DRV8244SQRYJRQ1?
The maximum output current is 21 A.
- Does the DRV8244SQRYJRQ1 support PWM operation?
- What protection features does the DRV8244SQRYJRQ1 offer?
The device offers protection against over current and over temperature, with fault indication on the nFAULT pin.
- Can the DRV8244SQRYJRQ1 be configured in different control modes?
- What is the sleep current of the DRV8244SQRYJRQ1?
The typical sleep current is 1 µA at 25°C.
- Does the DRV8244SQRYJRQ1 support SPI interface?
- What is the purpose of the nFAULT pin on the DRV8244SQRYJRQ1?
The nFAULT pin indicates fault conditions such as over current and over temperature.
- Is the DRV8244SQRYJRQ1 AEC-Q100 qualified?
