Overview
The L9960, produced by STMicroelectronics, is an integrated H-Bridge designed for automotive applications. It is suitable for driving both resistive and inductive loads. The device is AEC-Q100 qualified, ensuring it meets the stringent requirements of the automotive industry. The L9960 features a flexible driving strategy enhanced by configurable PWM/DIR pins and IN1/IN2, allowing for versatile control over the motor. It also includes integrated free-wheel diodes to reduce power dissipation during freewheeling conditions. The device is controlled and configured via an integrated Serial Peripheral Interface (SPI), enabling the adjustment of device parameters, control of operating modes, and the reading of diagnostic information.
Key Specifications
| Specification | Value |
|---|---|
| Package | PowerSSO 36 |
| Grade | Automotive |
| RoHS Compliance Grade | Ecopack2 |
| Operating Battery Supply Voltage | 4.5 V to 28 V |
| Operating VDD5 Supply Voltage | 4.5 V to 5.5 V |
| Input Switching Frequency | Up to 20 kHz |
| RDSon (full path at Tj = 150°C) | < 400 mΩ |
| Logic Levels Compatibility | 3.3 V and 5 V |
| Maximum I/O Pin Voltage | Up to 19 V |
| Operating Temperature Range | -40°C to 150°C |
Key Features
- AEC-Q100 qualified for automotive applications
- Flexible driving strategy via configurable PWM/DIR pins and IN1/IN2
- RDSon < 400 mΩ (full path at Tj = 150°C)
- Operating battery supply voltage from 4.5 V up to 28 V
- Operating VDD5 supply voltage from 4.5 V to 5.5 V
- Input switching frequency up to 20 kHz
- Built-in charge pump supporting 100% duty cycle
- Logic levels compatible to 3.3 V and 5 V
- Monitoring of VDD5 supply voltage with bidirectional switch-off pin
- Current limitation SPI-adjustable in four steps
- Output stage current limitation with dependence on temperature
- Programmable voltage and current slew rate control
- Short circuit and programmable thermal warning and shutdown thresholds
- Open Load diagnosis in ON condition
- SPI interface for configuration and diagnosis
- Two independent enable/disable pins NDIS and DIS and SOPC (Switch-off Path Check) available
- Spread Spectrum function for EMI reduction
- Available in single (L9960) and Twin (L9960T) options, both in PSSO36 package
Applications
The L9960 is designed for various automotive applications, including:
- Throttle control actuators
- Exhaust gas recirculation control valves (EGR)
- General purpose DC motors such as turbo, flap control, and electric pumps
Q & A
- What is the L9960 used for?
The L9960 is an integrated H-Bridge used for driving resistive and inductive loads in automotive applications.
- What are the key features of the L9960?
The L9960 features a flexible driving strategy, built-in charge pump, SPI interface, programmable slew rate control, and short circuit protection among others.
- What is the operating voltage range of the L9960?
The L9960 operates with a battery supply voltage from 4.5 V to 28 V and a VDD5 supply voltage from 4.5 V to 5.5 V.
- What is the maximum input switching frequency of the L9960?
The maximum input switching frequency is up to 20 kHz.
- Is the L9960 AEC-Q100 qualified?
- What types of loads can the L9960 drive?
The L9960 can drive both resistive and inductive loads.
- How is the L9960 configured and controlled?
The L9960 is configured and controlled via an integrated Serial Peripheral Interface (SPI).
- What are the available package options for the L9960?
The L9960 is available in single and twin options, both in PSSO36 package.
- Does the L9960 have built-in protection features?
- What is the purpose of the Spread Spectrum function in the L9960?
The Spread Spectrum function is used for EMI reduction.
