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BD6722FS Datasheet(PDF) 2 Page - Rohm

Part No. BD6722FS
Description  Multifunction Single-phase Full-wave Fan Motor Driver
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Maker  ROHM [Rohm]
Homepage  http://www.rohm.com
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BD6722FS Datasheet(HTML) 2 Page - Rohm

 
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Datasheet
Datasheet
BD6722FS
TSZ02201-0H1H0B100180-1-2
© 2012 ROHM Co., Ltd. All rights reserved.
28.JUL.2012 Rev.002
www.rohm.com
TSZ22111・15・001
●Pin configuration
●Pin description
P/No.
T/Name
Function
1
GND
Ground terminal (signal ground)
2
OSC
Oscillating capacitor connecting
terminal
3
MIN
Minimum output duty setting terminal
4
TH
Output duty controllable input terminal
5
Vcc
Power supply terminal
6
A1H
High side output terminal 1
7
A1L
Low side output terminal 1
8
RNF
Output current detecting resistor
connecting terminal (motor ground)
9
A2L
Low side output terminal 2
10
A2H
High side output terminal 2
11
CS
Output current detection terminal
12
H+
Hall + input terminal
13
H–
Hall – input terminal
14
REF
Reference voltage output terminal
15
FG
Speed pulse signal output terminal
16
AL
Lock alarm signal output terminal
●Block diagram
●I/O truth table
Hall input
Driver output
H+
H–
A1H
A1L
A2H
A2L
FG
H
L
Hi-Z
L
L
Hi-Z
Hi-Z
L
H
L
Hi-Z
Hi-Z
L
L
H; High, L; Low, Hi-Z; High impedance
FG output is open-drain type.
Motor state
AL
Rotating
L
Locking
Hi-Z
L; Low, Hi-Z; High impedance
AL output is open-drain type.
Fig.2 Block diagram
REF
H+
MIN
A1L
TH
OSC
GND
A2H
CS
FG
Vcc
AL
H–
RNF
1
2
3
4
5
6
7
15
A2L
A1H
16
8
14
13
12
11
9
10
Fig.1 Pin configuration
(TOP VIEW)
Vcc
HALL
AMP
Vcl
SIGNAL
OUTPUT
HALL
COMP
CONTROL
LOGIC
PRE-
DRIVER
REF
OSC
QUICK
START
LOCK
PROTECT
TSD
PWM SOFT
SWITCHING
CURRENT
LIMIT COMP
SIGNAL
OUTPUT
PWM
COMP
PWM
COMP
H–
H+
MIN
TH
OSC
AL
REF
A1L
CS
RNF
GND
A2H
A2L
FG
10
9
14
13
12
11
16
15
1
2
3
4
5
6
7
8
Vcc
A1H


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