HT7K1201 6.0V 1.3A DC Motor H-Bridge Driver SOT23-6

HT7K1201 6.0V 1.3A DC Motor H-Bridge Driver SOT23-6 is a highly efficient, single-channel H-bridge driver designed specifically for driving low-voltage brushed DC motors and solenoids in portable applications. This compact integrated circuit utilizes low on-resistance power MOSFETs to minimize power loss and maximize battery life. Consequently, it provides a robust output current of up to 1.3A while maintaining a very small footprint on the printed circuit board. The device features four operation modes including forward, reverse, brake, and coast, which you can easily control via simple logic inputs. Furthermore, the driver includes integrated protection against over-temperature and short-circuit conditions. Therefore, the HT7K1201 represents an ideal solution for engineers designing space-constrained, battery-powered devices like smart locks, toys, and small robotics.

Key Features:

• Low On-Resistance: Features a low R_DS(ON) of approximately 0.5 Ω, which reduces heat generation and improves overall system efficiency during high-current operation.
• Four Control Modes: Supports forward, reverse, brake, and coast modes via two logic input pins, allowing for precise motor control and quick stopping.
• Compact SOT23-6 Package: The ultra-small surface-mount package saves valuable board space, making it perfect for miniature electronic designs.
• Wide Operating Voltage: Designed to work reliably with a wide range of low-voltage power sources, from single-cell Li-ion batteries to 4x AA battery packs.
• Safety Protections: Includes built-in thermal shutdown (TSD) and over-current protection (OCP) to prevent component failure during accidental stalls or shorts.

Technical Specifications:

• Operating Supply Voltage (V_CC): 2.0 V to 6.0 V
• Maximum Peak Output Current (I_PEAK): 1.3 A
• Continuous Output Current: 0.8 A (subject to thermal dissipation)
• Standby Current: Less than 0.1 μA typically
• Logic Input Voltage Range: 0 V to V_CC
• Thermal Shutdown Temperature: ±160°C
• Over Current Protection Threshold: ≈ 2.5 A

Mechanical Specifications:

• Package Type: SOT23-6 (Surface Mount Device)
• Lead Finish: Lead-free (RoHS Compliant)
• Case Material: Molded Plastic
• Moisture Sensitivity Level: MSL 3

Dimensions:

• Body Length: ≈ 2.90 mm
• Body Width (Including Leads): ≈ 2.80 mm
• Body Height: ≈ 1.10 mm
• Lead Pitch: 0.95 mm

Pinout and Wiring:

• Pin 1 (OUTA): Connect to the first terminal of the DC motor or solenoid.
• Pin 2 (GND): Connect to the system ground.
• Pin 3 (OUTB): Connect to the second terminal of the DC motor or solenoid.
• Pin 4 (VCC): Connect to the positive motor power supply (2.0 V to 6.0 V).
• Pin 5 (INB): Logic input B. Pair with INA to determine the motor direction or brake state.
• Pin 6 (INA): Logic input A. However, ensure the logic levels match VCC for proper high-state detection.

Datasheet Reference:

• Download Holtek HT7K1201 H-Bridge Driver Datasheet

Commonly Used in:

• Smart Home Devices: Powering the small actuators in automatic soap dispensers and smart door locks.
• DIY Robotics: Driving N20 micro gear motors in mini-sumo or line-following robots.
• Consumer Electronics: Controlling lens zoom or focus motors in small cameras and portable projectors.

Applications:

• Brushed DC Motor Control: Provides bi-directional control for low-voltage, high-current DC motors.
• Solenoid Driving: Managing the pulse-width modulated (PWM) activation of latching solenoids.
• Valve Actuation: Controlling precision fluid valves in medical or laboratory equipment.

Equivalent Models:

• DRV8837 (Texas Instruments): A popular low-voltage H-bridge driver with similar current ratings and small packaging.
• LV8548MC (ON Semiconductor): Alternatively, this model offers dual-channel capabilities if your project requires two motor drivers.
• MX1508: A common low-cost alternative for toy applications, although the HT7K1201 offers superior thermal performance in a smaller package.

Package Includes:

• 1 x HT7K1201 6.0V 1.3A DC Motor H-Bridge Driver SOT23-6