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E-L8150 Datenblatt(PDF) 2 Page - STMicroelectronics

Teilenummer E-L8150
Bauteilbeschribung  Brushless motor predriver
Download  37 Pages
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Hersteller  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

E-L8150 Datenblatt(HTML) 2 Page - STMicroelectronics

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Contents
L8150
2/37
Contents
1
Block diagram & pins description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.1
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.2
Pins description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2
Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.1
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.2
Operating condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3
Electrical characteristcs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4
General description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.1
Drive stage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.2
Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.3
I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.4
Hall Sensor Input Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.5
Protection Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.6
PWM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.7
System Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.8
External HVIC Bootstrap Capacitor Initialization . . . . . . . . . . . . . . . . . . . 14
4.9
Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.10
Others . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5
Operating description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.1
Free-Run (FS) and Reset (SD) functions . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.2
Smooth Drive and Control logic description . . . . . . . . . . . . . . . . . . . . . . . 16
5.3
Speed Control Circuitry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
6
Precharge and hall effects filtering time description . . . . . . . . . . . . . . 24
6.1
Startup sequence with FS signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
6.2
Startup sequence with SD signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
7
Application example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31


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