Diodes Incorporated ZXBM5210-S-13

Overview

ZXBM5210-S-13 from Diodes Incorporated is a reversible DC motor driver IC with integrated full-bridge output stage, 3V–18V operating range, 1.5A typical overcurrent protection threshold, four-mode control (Forward/Reverse/Brake/Standby), and dual speed control methods (VREF voltage or external PWM). It targets single-coil DC fans and motors in home appliances and handheld tools.

For engineers reviewing the ZXBM5210-S-13 datasheet, ZXBM5210-S-13 pinout, ZXBM5210-S-13 application, or ZXBM5210-S-13 equivalent, key selection criteria include its SO-8/SO-8EP package options, 32µA standby current, 20–35kHz internal PWM frequency, thermal shutdown at +165°C, and dual-speed control flexibility between VREF analog and FWD/REV PWM inputs.

Technical Context

The ZXBM5210 implements a fully integrated H-bridge with complementary n- and pMOS output stages, dead-time control (2.1–3.9µs) to prevent shoot-through during direction reversal, and internal PWM oscillator for VREF-based duty generation. Its control logic decodes FWD/REV pin states into four deterministic motor modes without external timing components.

Protection architecture includes undervoltage lockout (2.6V trip, 2.8V release), overvoltage cutoff (20.7V trip, 19V release), cycle-by-cycle overcurrent detection (1.2–1.5A threshold), and junction thermal shutdown (+165°C trip, +25°C hysteresis), all disabling outputs while preserving input logic state.

Key Specifications

Pinout & Package

The ZXBM5210-S-13 is available in standard SO-8 and thermally enhanced SO-8EP packages. The exposed pad on SO-8EP is internally connected to GND and must be soldered to PCB ground plane for optimal thermal performance.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar reversible DC motor drive applications.

Compared with TB6612FNG and DRV8876N, the ZXBM5210-S-13 offers unique VREF analog speed control and lowest standby current (32µA), making it optimal for battery-powered single-motor systems where simplicity, low quiescent power, and smooth analog speed adjustment are prioritized over multi-channel capability or diagnostic features.

Availability

ZXBM5210-S-13 is available at Aetrix Electronics and suitable for home appliance fans, handheld power tools, valve actuation systems, and remote-controlled toys requiring stable component supply and long-term production continuity.

Supply support for ZXBM5210-S-13 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in power management, signal integrity, and motor control solutions for industrial, consumer, and automotive markets.

The ZXBM5210 belongs to Diodes' motor driver product line, designed specifically for cost-sensitive, low-to-medium power reversible DC motor applications requiring integrated protection, minimal external components, and flexible speed control without microcontroller dependency.

FAQ

What are the valid voltage ranges for VREF and FWD/REV pins?

VREF accepts 3V to VDD (max 18V) for analog speed control; FWD and REV pins tolerate 0–5.5V logic levels. Exceeding 5.5V on FWD/REV risks permanent damage, as confirmed in Absolute Maximum Ratings. VREF must equal VDD when using supply-voltage speed control mode.

How does the ZXBM5210 handle motor direction reversal without shoot-through?

The IC enforces a 2.1–3.9µs dead time between high-side and low-side MOSFET switching transitions during direction change. This hardware-controlled blanking interval prevents simultaneous conduction, verified in Electrical Characteristics and Application Note timing diagrams.

Can the ZXBM5210 drive a 24V motor?

No-its recommended operating voltage is 3V to 18V. While absolute maximum supply rating is 24V, this is a transient stress limit only; functional operation above 18V violates Recommended Operating Conditions and risks premature failure or protection activation.

What is the minimum startup PWM duty required in PWM speed control mode?

Startup PWM duty typically ranges from 30% to 50%, depending on motor inertia and coil design-not an IC limitation. Once rotating, duty can be reduced to ~20% without stalling, as documented in the Application Note section on PWM speed control.