Overview
The L9997ND013TR is a monolithic integrated driver produced by STMicroelectronics, designed to drive various loads, including DC motors, particularly in automotive electronics environments. This device features dual half-bridge outputs with low on-resistance and high output current capability, making it suitable for demanding motor control applications. The L9997ND013TR is optimized for reliability and safety, with built-in protection mechanisms such as overvoltage protection, thermal shutdown, and output short-circuit protection.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| DC Supply Voltage (VVSDC) | -0.3 to 26 | V |
| Supply Voltage Pulse (VVSP) | 40 | V |
| DC Output Current (IOUT) | ±1.8 | A |
| Enable Input Voltage (VEN) | -0.3 to 7 | V |
| Diagnostic Output Voltage (VDIAG) | -0.3 to 7 | V |
| Thermal Shut-down Junction Temperature (TjTS) | 165 | °C |
| Thermal Resistance Junction-Ambient (Rth j-amb) | 50 | K/W |
| On-Resistance to Supply or GND (RON OUT1,2) | 0.7 Ω (typical at VVS = 12V, Tj = 125°C) | Ω |
| Output Current Limitation | 1.2 to 2.2 A | A |
| Supply Overvoltage Threshold (VVSOVth) | 17 to 21 V | V |
Key Features
- Dual half-bridge outputs with typical on-resistance of 0.7Ω
- Output current capability of ±1.2A
- Operating supply voltage range of 7V to 16.5V
- Supply overvoltage protection up to 40V
- Very low quiescent current in standby mode (< 1µA)
- CMOS compatible inputs with hysteresis
- Output short-circuit protection
- Thermal shutdown and real-time diagnostic for thermal overload and overvoltage
- Internal sink current generators for input level forcing to LOW in standby mode
Applications
The L9997ND013TR is primarily designed for driving DC motors in automotive systems. It is suitable for various automotive applications where reliable and efficient motor control is crucial. This includes but is not limited to:
- Automotive electronics
- DC motor control in vehicles
- Braking systems
- Other high-reliability motor drive applications
Q & A
- What is the typical on-resistance of the L9997ND013TR?
The typical on-resistance is 0.7Ω at VVS = 12V and Tj = 125°C. - What is the output current capability of the L9997ND013TR?
The output current capability is ±1.2A. - What is the operating supply voltage range of the L9997ND013TR?
The operating supply voltage range is 7V to 16.5V. - Does the L9997ND013TR have overvoltage protection?
Yes, it has supply overvoltage protection up to 40V. - What is the quiescent current in standby mode?
The quiescent current in standby mode is less than 1µA. - Are the inputs CMOS compatible?
Yes, the inputs are CMOS compatible with hysteresis. - What protection mechanisms does the L9997ND013TR have?
The device features output short-circuit protection, thermal shutdown, and real-time diagnostic for thermal overload and overvoltage. - How do the inputs behave in standby mode?
In standby mode, the inputs are forced to LOW by internal sink current generators. - What is the thermal shutdown junction temperature?
The thermal shutdown junction temperature is 165°C. - Can the diagnostic outputs be connected together?
Yes, the diagnostic outputs can be connected together with a common pull-up resistor.
