MX Series Motor Driver IC Kit — MX302 / MX612E / MX1515H / MX1616H, SOT-23 / SOP-8 / SOP-16 (5-Pack)

This kit covers the MX series of brushed DC motor driver ICs from MPS (Monolithic Power Systems) and compatible manufacturers, spanning SOT-23-6, SOP-8, and SOP-16 packages. From the compact MX302 (SOT-23-6, low current) to the high-current MX1616H (SOP-16, dual H-bridge), these ICs provide integrated H-bridge motor drive with logic-level control, PWM speed control, and built-in protection for a wide range of robotics, toy, and embedded motor control applications.

Variant Overview

Part Number	Package	Channels	Max Current	Best For
MX302	SOT-23-6	1 (half-bridge)	~0.5A	Micro motor, vibration motor
MX08H / MX08	SOP-8	1 (full H-bridge)	~1A	Small DC motor, fan
MX608E	SOP-8	1 (full H-bridge)	~1.5A	Medium DC motor
MX612E / MX612	SOP-8	1 (full H-bridge)	~2A	Robot motor, conveyor
MX113L	SOP-8	1	~1A	General motor drive
MX2003	SOP-8	1	~2A	High-efficiency motor drive
MX116H	SOP-16	2 (dual H-bridge)	~1A/ch	2-motor robot chassis
MX512H	SOP-16	2 (dual H-bridge)	~1.5A/ch	2-motor robot chassis
MX1515H	SOP-16	2 (dual H-bridge)	~1.5A/ch	2WD robot, stepper motor
MX1616H	SOP-16	2 (dual H-bridge)	~2A/ch	High-current 2-motor drive

Key Specifications (All Variants)

Parameter	Value
Packages	SOT-23-6, SOP-8, SOP-16 (SMD)
Topology	H-bridge (full or half, variant dependent)
Control	Logic-level IN1/IN2 + PWM enable
Protection	Thermal shutdown, OCP, UVLO
Operating Temperature	-40°C to +85°C
Quantity	5 pieces

Why Choose MX Series?

Full range coverage — from micro SOT-23-6 to dual SOP-16, one kit covers all motor sizes
Integrated H-bridge — no external MOSFETs or diodes needed
Logic-level + PWM control — direct Arduino/ESP32 GPIO drive with analogWrite() speed control
Built-in protection — thermal shutdown and OCP prevent damage from stall or overload
5-pack value — multiple variants for different motor sizes in one purchase

Compatible With / Common Use Cases

Arduino 2WD robot: MX1616H (dual H-bridge, SOP-16) drives both left and right motors from one IC
ESP32 robot car: MX612E (SOP-8) per motor with PWM speed control via LEDC peripheral
Stepper motor (unipolar): MX1515H dual H-bridge for 4-wire stepper motor drive
Toy motor repair: MX08H/MX612E replacement for failed H-bridge IC in RC toys
Vibration motor: MX302 (SOT-23-6) for compact haptic feedback motor drive

Frequently Asked Questions

Q: What is the difference between MX1515H and MX1616H?
A: Both are dual H-bridge SOP-16 motor driver ICs. MX1616H has a higher continuous current rating (~2A per channel vs ~1.5A for MX1515H) and lower RDS(on). Use MX1616H for higher-torque motors or when running near the current limit. Both use the same logic-level IN1/IN2/PWM control interface and are pin-compatible.

Q: How do I control two motors with MX1616H from Arduino?
A: Connect STBY to VCC (enable), AIN1/AIN2 to Arduino digital pins for motor A direction, PWMA to a PWM pin for motor A speed. Repeat BIN1/BIN2/PWMB for motor B. Use analogWrite(PWMA, speed) for speed control (0–255). For forward: AIN1=HIGH, AIN2=LOW. For reverse: AIN1=LOW, AIN2=HIGH.

Q: Can MX1515H replace TB6612FNG in an existing design?
A: MX1515H and TB6612FNG are functionally similar dual H-bridge ICs in SOP-16, but their pinouts differ. Do not substitute without verifying pin-by-pin compatibility against both datasheets. For a well-documented drop-in alternative to TB6612FNG, use the TB6612FNG itself or DRV8833.