E-L8150TR| Datasheet

E-L8150TR, L8150

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L8150
Brushless motor predriver
Feature

Integrated Predriver IC for 3 phase BL motor. Integrated Smooth driving concept with sinusoidal driving waveforms. BCD5 technology 0.6mm. Package: SO28. Three Hall effects, differential input comparators. Integrated Undervoltage lockout (VCC). PWM output duty (voltage) control / Torque optimizer / protection functions PWM carrier 17kHz min / integrated dead time

SO28

External HVIC bootstrap capacitor refresh function during 120 degree drive (rectangular drive). This means both upper and lower chopping and low side current recirculation for rectangular drive. Current limiter circuit VCC lower voltage protection / VDC over voltage protection circuit / Hall sensor fail protection FAULT signal output

Functions

C-MOS level predriver output (high active) Free Run function Dead time (3 values selectable) Sinusoidal waveform PWM logic Detected rotation speed (FG) output terminal PWM duty control by analog input (KVAL control) Forward/backward rotation input terminal (FR) / rotation direction detection output terminal (DM) Thermistor connection terminal (thermal protection) Torque optimizer terminal controlled by analog voltage input V regulator output terminalExternal HVIC bootstrap capacitor pre-charge function

Description
The L8150 device is a motor predriver intended to drive brushless fan motors with Hall effect sensors. The device, realized in BCD5 0.6mm mixed technology, is characterized by a mostly digital architecture assuring high integration density and high test coverage. The L8150 with few external components forms a complete control circuit, since the smooth driver logic is fully integrated: its peculiar driving solution (smooth driving) allows a very low current ripple and speed control even at low rotation speeds.

Order codes
Part number E-L8150 E-L8150TR Temp range, C -20 to 95 -20 to 95 Package SO28 SO28 Packing TUBE Tape & Reel

December 2006

Rev 2

1/37
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