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參數資料
| 型號： | L8150 |
| 廠商： | 意法半導體 |
| 英文描述： | Brushless motor predriver |
| 中文描述： | 無刷電機預驅動 |
| 文件頁數： | 1/37頁 |
| 文件大小： | 573K |
| 代理商： | L8150 |
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March 2006
Rev 1
1/37
1
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
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
■
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
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
SO28
Part number
Temp range,
°
C
Package
Packing
E-L8150
-20 to 95
SO28
TUBE
E-L8150TR
-20 to 95
SO28
Tape & Reel
www.st.com
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