UMW L9110S

UMW L9110S
UMW L9110S - Image 2

UMW L9110S

UMW L9110S is a dual-channel push-pull motor driver IC — a two-channel power amplifier ASIC designed to drive brushed DC motors, stepper motor windings, solenoid valves, and switching power circuits in low-voltage battery-powered applications. Operating from a supply voltage of 2.2V to 6.5V, the L9110S provides two independent output channels each capable of 200mA continuous output current at VCC = 5V, with a low saturation voltage drop for efficient low-voltage operation. Both input control terminals are fully TTL/CMOS compatible, enabling direct connection to 3.3V or 5V microcontroller I/O pins without level-shifting components, and the device requires minimal external circuitry to implement complete bidirectional motor or valve drive. ABL Semi supplies the UMW L9110S in an SOP-8 package with flexible MOQ and 100% authentic, factory-original stock.

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UMW L9110S Overview

The UMW L9110S is a dual-channel push-pull power amplifier motor driver ASIC that integrates two independent half-bridge output stages into a single compact SOP-8 package, replacing the discrete transistor arrays and resistor networks traditionally required for small motor or solenoid drive circuits. Each channel accepts a logic-level input signal and drives its output with a low saturation voltage drop, making the L9110S well suited to the 2.2V–6.5V supply voltages typical of battery-operated consumer and toy products. The device provides a maximum continuous output current of 200mA per channel at VCC = 5V, with both channels controllable independently to drive forward and reverse rotation of a brushed DC motor, or to sequence the winding energisation of a two-phase stepper motor.

A key practical advantage of the UMW L9110S is its TTL/CMOS compatible input interface, which allows both input control pins to be connected directly to a microcontroller’s GPIO or PWM output pins without any intermediate logic level translation — compatible with both 3.3V and 5V MCU I/O standards. The device’s low static operating current and minimal external component requirements make it straightforward to integrate into space-constrained PCB designs for high-volume consumer production. The L9110S architecture consolidates what would otherwise require four discrete NPN/PNP transistors, base resistors, and flyback diodes into a single 8-pin IC, directly reducing BOM component count, assembly cost, and board area.

The UMW L9110S is particularly widely adopted in toy car motor drives, pulse solenoid valve controls, two-phase stepper motor drives, and low-voltage switching circuits across the consumer electronics and hobbyist markets. Its combination of a 2.2V minimum supply, direct CPU I/O compatibility, and self-contained push-pull output architecture makes it one of the most cost-effective motor drive solutions available in the SOP-8 format for sub-200mA-per-channel applications.

Key Specifications

ParameterValue
Part NumberL9110S
ManufacturerUMW
Supply Voltage Range (VInput)2.2V to 6.5V
Maximum Continuous Output Current (IOutput)200mA per channel (at VCC = 5V)
Number of Output Channels2 (independent push-pull)
Input Logic CompatibilityTTL / CMOS (3.3V and 5V compatible)
Output Saturation VoltageLow (internal push-pull topology)
Static Operating CurrentLow (quiescent)
Control ModesForward, reverse (per channel via IN1/IN2)
Motor Types SupportedBrushed DC, two-phase stepper, solenoid valve
External Components RequiredMinimal
PackageSOP-8
RoHS ComplianceYes

Applications

The UMW L9110S is broadly deployed wherever a compact, low-voltage dual-channel motor or actuator drive is required with direct microcontroller interfacing. Primary application areas include RC toy car and robot chassis motor drives, pulse electromagnetic valve controls, two-phase stepper motor winding drives, small fan and pump controls, and low-voltage switching power circuits. Its 2.2V minimum supply and TTL/CMOS input compatibility also make it well suited to coin-cell powered IoT actuators, handheld educational robotics kits, and compact home automation relay or valve driver modules where simplicity, low cost, and minimal board footprint are the primary design goals.

Pin-to-Pin Compatible Alternatives

Selecting a pin-to-pin compatible replacement such as the UMW L9110S allows engineering and procurement teams to reduce per-unit BOM cost and strengthen supply continuity without any PCB layout or firmware changes.

Reference Part NumberOriginal ManufacturerWhy Choose UMW L9110S
DRV8833Texas InstrumentsUMW L9110S provides a direct low-cost SOP-8 alternative for sub-200mA dual-channel applications where the DRV8833’s higher current capability is not required, reducing unit BOM cost
TC78H621FNGToshibaPin-compatible dual-channel motor driver replacement; UMW L9110S operates down to 2.2V versus the TC78H621’s 2.5V minimum, extending compatibility with lower-voltage battery systems
BD6211F-E2ROHM SemiconductorCompatible push-pull output topology in the same SOP-8 footprint; UMW L9110S requires fewer external components and is available through ABL Semi with flexible UK MOQ
L9110 (original)STMicroelectronicsUMW L9110S is a direct functional and footprint replacement for the original ST L9110 with equivalent dual push-pull architecture, supplied as 100% authentic factory-origin stock through ABL Semi

Frequently Asked Questions

Is UMW L9110S RoHS compliant?

Yes. The UMW L9110S is manufactured in compliance with the RoHS Directive (2011/65/EU), restricting hazardous substances including lead, cadmium, and mercury. Compliance documentation is available upon request through ABL Semi.

What are the pin-to-pin replacements for UMW L9110S?

The UMW L9110S is a pin-to-pin compatible replacement for dual-channel push-pull motor drivers including the TI DRV8833, Toshiba TC78H621FNG, ROHM BD6211F, and the original STMicroelectronics L9110. Please refer to the compatibility table above for a specific advantage comparison for each substitution.

What is the minimum order quantity (MOQ) for UMW L9110S?

ABL Semi offers flexible MOQ for UMW L9110S, supporting both prototype quantities and mass production orders. Contact us for current stock and pricing.

What package options are available for UMW L9110S?

The UMW L9110S is available in the standard SOP-8 package, an 8-pin small-outline format fully compatible with conventional SMT reflow assembly processes and widely supported by PCB layout tools and contract manufacturers. Contact ABL Semi to confirm current stock availability and lead times.

Can the UMW L9110S drive a two-phase stepper motor directly from a microcontroller?

Yes. The UMW L9110S dual-channel architecture is directly suited to driving a two-phase (bipolar) stepper motor — each channel drives one motor winding, and the microcontroller sequences the IN1/IN2 logic inputs of both channels to produce the full-step or half-step commutation pattern. Since both input pins are TTL/CMOS compatible and connect directly to MCU GPIO pins with no external components, the complete stepper drive circuit requires only the UMW L9110S, a decoupling capacitor, and the motor itself — making it a popular choice for low-cost stepper applications in educational robotics, 3D printer accessory drives, and compact automation modules.

For complete product specifications, please refer to:



DataSheet

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