- Catalogs
- SAM Controllers
- Mini DC 12A H Bridge Driver Board
Mini DC 12A H Bridge Driver Board
Mini DC 12A H Bridge Driver Board
- Output motor voltage range: 4 to 28 V
- Logic level on IN pins: up to 5.5 V
- Peak Current: 12 A
- Stand-by current (max): 1 µA
- Automotive qualified driver die
- Max Output current: 12 A
- Power indicator LED
- PWM control
- Undervoltage lockout
- Overvoltage clamp/protection
- Thermal shutdown
- Very low standby power consumption
- PWM operation up to 20 kHz
- MultiSense diagnostic functions including analog motor current feedback and output short to VCC detection
- Output protected against short to ground and short to VCC
- Standby Mode
The SAM-VNH7DC12A is a compact yet powerful H Bridge DC driver board suitable for a wide range of mechatronics applications. It features high current output and automotive-grade reliability, making it ideal for DC motors. The board is pre-assembled with the VNH7100AS H-Bridge driver, which includes a dual monolithic high-side driver and two low-side switches, designed for efficient integration and intelligent signal/protection circuitry.
The board supports various hardware configurations: H-bridge (1 Motor), Dual half-bridge (2 motors), and Cascaded (3 Motors).
The board allows easy connection with input signals IN_A and IN_B interfacing directly with a microcontroller to control motor direction, speed, stop, and brake parameters. The SEL_0 pin provides addressable information and feedback.
| Pin Number | Pin Label | Function | Designation | Notes |
|---|---|---|---|---|
| 2, 5, 7, 9, 15 | GND | Ground | Common Ground for both motor voltage and logic voltage (all GND pins are connected) | |
| 3, 16 | VCC | Motor Power Connection | Power input (4V to 28V) | |
| 1 | PWM | Logic Voltage Input | PWM input that controls the speed | |
| 13-14, 11-12 | OUT_A, OUT_B | Motor Power Output | Connection to the DC Motor(s) | |
| 4, 8 | IN_A, IN_B | Logic Voltage Input | Control Inputs from microcontroller (2.7V to 5.5V). Two inputs that determine the direction. | |
| 6 | SEL_0 | Logic Voltage Input | One of the two inputs that determines the direction. | |
| 10 | CS_OUT | Voltage Output | Voltage output, dependent on SEL_0, IN_A, IN_B input conditions. |
Note: Refer to Tables 11, 12, 13 for status of inputs/outputs and operation conditions.
SAM Controllers reserves the right to make changes to products and documents without notice. Purchasers should verify the latest information before placing orders. SAM assumes no liability for application assistance or design of Purchasers’ products. Resale of SAM products with different provisions voids any warranty.
Catalog excerpts
SAM-VNH7DC12A Mini DC 12A H Bridge Driver Board Description Features The small yet powerful H Bridge DC driver SAM-VNH7DC12A breakout board has a lot of great specs that make it useful for a wide variety of mechatronics. In particular the high current output and automotive grade reliability makes it a great choice for almost any DC motor. This board comes pre assembled using the automotive grade VNH7100AS H-Bridge driver, incorporating a dual monolithic high-side driver and two low-side switches. Both switches are designed to efficiently integrate on the same die for a true Power MOSFET with intelligent signal/protection circuitry. The SAM-VNH7DC12A supports H-bridge (1 Motor) , Dual half-bridge (2 motors) and Cascaded (3 Motors) hardware configurations. Easy Connection - The input signals IN_A and IN_B directly interface to the microcontroller to select the motor direction, speed, stop and brake parameters. The SEL_0 pin provides addressable information and feedback. • Automotive qualified driver die • Max Output current: 12 A • Power indicator LED • PWM control • Undervoltage lockout • Overvoltage clamp / protection • Thermal shutdown • Very low standby power consumption • PWM operation up to 20 kHz • MultiSense diagnostic functions o Analog motor current feedback o Output short to VCC detection • Output protected against short to ground and short to VCC • Standby Mode
Open the catalog to page 1
sam-vnh7DC12A Mini DC 12A H Bridge Driver Board Each pin and its function is covered in the table below. Back View * NOTE: Please look in to Tables 11, 12, 13 to status of inputs/outputs and operation conditions.
Open the catalog to page 2
sam-vnh7DC12A Mini DC 12A H Bridge Driver Board Table 11. Operative condition - truth table Note: Other logic combinations on digital input pins not reported on the above table don’t allow to detect a
Open the catalog to page 3
sam-vnh7DC12A Mini DC 12A H Bridge Driver Board Table 13. Off-state - truth table 1. The device enters standby mode after tD sjgy 2. To power on the device from the standby, it is recommended to toggle INA or INBfrom 0 to 1 first and then PWM from 0 to 1 to avoid any over-stress on the device in case of short-to-battery.
Open the catalog to page 4
DC 12A H Bridge Driver Board Example Arduino Nano Connection Diagram
Open the catalog to page 5
DC 12A H Bridge Driver Board IMPORTANT NOTICE – PLEASE READ CAREFULLY SAM Controllers, 3DFS, LLC. and its subsidiaries (“SAM”) reserve the right to make changes, corrections, enhancements, modifications, and improvements to products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on SAM products before placing orders. SAM products are sold pursuant to SAM’s terms and conditions of sale in place at the time of order acknowledgement. Purchasers are solely responsible for the choice, selection, and use of SAM products and SAM assumes no...
Open the catalog to page 6
