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Texas Instruments LM2103 Half-Bridge Driver

Texas Instruments LM2103 Half-Bridge Driver is a compact, high-voltage gate driver designed to drive both the high-side and the low-side N-channel MOSFETs in a half-bridge or a synchronous buck configuration. The INL inverting input allows the driver to be used in dual or single PWM input applications.

The fixed dead-time and the –1V DC and –19.5V transient negative voltage handling on the SH pin improve the system robustness in high noise applications. The Texas Instruments LM2103 is available in an 8-pin SOIC package compatible with industry-standard pinouts. Undervoltage lockout (UVLO) is provided on the low-side and the high-side power rails for protection during power up and down.

Features

Drives two N-channel MOSFETs in a half-bridge configuration
8V typical undervoltage lockout on GVDD
107V absolute maximum voltage on BST
–19.5V absolute maximum negative transient voltage handling on SH

0.5A/0.8A peak source/sink currents
475ns typical fixed internal dead time
Built-in cross-conduction prevention
115ns typical propagation delay
Inverting input pin INL

Applications

Brushless-DC (BLDC) motors
Permanent magnet synchronous motors (PMSM)
Servo and stepper motor drives
Cordless vacuum cleaners
Cordless garden and power tools

E-bikes and e-scooters
Battery test equipment
Offline uninterruptible power supply (UPS)
General-purpose MOSFET or IGBT driver

Texas Instruments LM2103 Half-Bridge Driver

Features

Applications

Functional Block Diagram

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