M54544AL Bi-Directional Motor Driver 12V 1.5A IC
The M54544AL is a high-performance bi-directional motor driver IC designed to control small DC motors with forward, reverse, and braking functions. It integrates internal driver circuitry capable of handling relatively high current, making it suitable for consumer electronics such as cassette players, VTR systems, and small automation devices. With its dual input control, the IC allows simple logic-based operation, enabling easy interfacing with microcontrollers and digital circuits.
This IC features built-in protection mechanisms including thermal shutdown and clamp diodes, ensuring safe operation under various conditions. It also supports separate control and output power supplies, allowing flexible speed control by adjusting voltage levels. Its ability to deliver high current with low saturation voltage makes it efficient for driving motors with better performance and reduced power loss.
Features:
- Bi-directional motor control (forward and reverse).
- Built-in brake function.
- High output current capability.
- Low output saturation voltage.
- Built-in thermal shutdown protection.
- Integrated clamp diodes for protection.
- Compatible with TTL, CMOS, and PMOS logic.
- Independent control and motor power supply pins.
Specifications:
| Symbol | Parameter | Conditions | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|---|
| Recommended Operating Conditions | ||||||
| Vcc | Supply voltage | 4 | 12 | 15 | V | |
| Io | Output current | ±300 | mA | |||
| VIH | “H” input voltage | 2 | Vcc | V | ||
| VIL | “L” input voltage | 0 | 0.4 | V | ||
| tB | Motor braking interval | 10 | 100 | ms | ||
| tj(shut) | Thermal shutdown temperature | Vcc ≥ 7V | 150 | °C | ||
| Electrical Characteristics | ||||||
| Io(leak) | Output leak current | Vcc=Vcc’=20V, V1=V2=0V, Vo=20V | 100 | µA | ||
| Vcc=Vcc’=20V, V1=V2=0V, Vo=0V | -100 | µA | ||||
| VO(H)(1) | “H” output saturation voltage(1) | Vcc=Vcc’=12V, V1=2V, V2=0V, IOH(1)=-200mA | 10.8 | 11.2 | V | |
| Vcc=Vcc’=12V, V1=2V, V2=0V, IOH(1)=-500mA | 10.7 | 11.1 | V | |||
| VO(H)(2) | “H” output saturation voltage(2) | Vcc=Vcc’=12V, V1=0V, V2=2V, IOH(2)=-200mA | 10.8 | 11.2 | V | |
| Vcc=Vcc’=12V, V1=0V, V2=2V, IOH(2)=-500mA | 10.7 | 11.1 | V | |||
| VOL(1) | “L” output saturation voltage(1) | Vcc=Vcc’=12V, V1=0V, V2=2V, IOL(1)=200mA | 0.2 | 0.5 | V | |
| Vcc=Vcc’=12V, V1=0V, V2=2V, IOL(1)=500mA | 0.95 | 1.35 | V | |||
| Vcc=Vcc’=12V, V1=V2=2V, IOL(2)=200mA | 0.2 | 0.5 | V | |||
| VOL(2) | “L” output saturation voltage(2) | Vcc=Vcc’=12V, V1=2V, V2=0V, IOL(2)=200mA | 0.2 | 0.5 | V | |
| Vcc=Vcc’=12V, V1=2V, V2=0V, IOL(2)=500mA | 0.95 | 1.35 | V | |||
| IIH(1) | “H” input current(1) | Vcc=Vcc’=12V, V1=2V, V2=0V | 50 | 120 | µA | |
| IIH(2) | “H” input current(2) | Vcc=Vcc’=12V, V1=0V, V2=2V | 50 | 120 | µA | |
| ICC | Supply current | Vcc=Vcc’=16V, V1=2V, V2=0V, output open | 15 | mA | ||
| Vcc=Vcc’=16V, V1=V2=2V, output open | 20 | mA | ||||
| Vcc=Vcc’=16V, V1=V2=0V, output open | 4 | mA |
Pinout:
| Description | Pin Name |
|---|---|
| Power supply 1 | Vcc1 |
| Output power supply 1 | Vcc’1 |
| Output 2 | O2‾ |
| Input 1 | IN1 |
| GND | GND |
| Input 2 | IN2 |
| Output 1 | O1‾ |
| Output power supply 2 | Vcc’2 |
| Power supply 2 | Vcc2 |
Applications:
- DC motor control systems.
- Tape recorders and cassette players.
- Small robotics projects.
- Automation systems.
- Consumer electronic devices.
Package Includes:
- 1x M54544AL Bi-Directional Motor Driver 12V 1.5A IC.