bd67929efv ROHM Co. Ltd., bd67929efv Datasheet - Page 4

• Manufacturer Part Number: bd67929efv
• Description: Three-phase Brushless Motor Driver For Polygonal Mirrors [for Lbp, Ppc]
• Manufacturer: ROHM Co. Ltd.

●Pin function
●Block diagram & Application circuit diagram
BD67929EFV
© 2010 ROHM Co., Ltd. All rights reserved.
www.rohm.com
Capacitor for
compensation of
current feedback roop.
Capacitor for noise to
Hall signal.
Setting range is
0.01～0.1µF.
Resistor and capacitor
for PLL control.
Pin No Pin name
Capacitor to set
the PWM frequency.
10
11
12
13
14
1
2
3
4
5
6
7
8
9
HWN
HWP
GND
HUN
VCC
RNF
HVN
HVP
FG
CS
HB
W
V
U
33pF
10nF
10nF
10nF
BRMODE
Ground
Power supply terminal
FG output terminal
Current detection comparator
input terminal
Connection terminal of resistor
for output current detection
Output terminal
Output terminal
Output terminal
Bias terminal for Hall element
Hall signal input terminal
Hall signal input terminal
Hall signal input terminal
Hall signal input terminal
Hall signal input terminal
HWN
HWP
OSC
HUN
HUP
HVP
HVN
CLK
CNF
PD
EO
SB
SS
EI
28
15
14
13
12
11
10
22
17
19
20
27
25
26
23
PWM
RESET
OCP
TSD
Function
Block diagram & Application circuit diagram
COMP
HALL
HYS
OVLO
UVLO
LOGIC
4/14
Pin No Pin name
15
16
17
18
19
20
21
22
23
24
25
26
27
28
BRMODE
PROCLK
VREG
TEST
OSC
HALL BIAS
HUP
CNF
CLK
PD
EO
PRO_OSC
SS
LD
SB
EI
Regulator
Capacitor to set the detection time for
protection circuit. Setting range is
0.01µF～0.47µF.
Hall signal input terminal
5V regulator output terminal
Phase comparison output terminal
Testing terminal
Error amplifier input terminal
Error amplifier output terminal
Connection terminal of a capacitor
to set the clock cycle for protection
Speed control clock input terminal
Start/stop signal input terminal
Phase locked detection
output terminal
Connection terminal of capacitor
to set PWM oscillating frequency
Switch terminal of deceleration
mode in servo
Connection terminal of
capacitor for current sense amp
Short brake signal input terminal
24
18
16
21
1
2
8
7
6
5
3
9
4
TEST
PROCLK
GND
RNF
LD
FG
CS
VREG
VCC
HB
U
V
W
0.01µF 100µF
Ｍ
0.1µF
0.33
Function
VCC
330pF
0.1µF
1K
Technical Note
2010.12 - Rev.A
Resistor to set output
signal level of Hall
element.
Capacitor for
internal Regulator and
regulator for Hall element.
Bypass capacitor.
Setting range is
47µF～470µF
(electrolytic)
0.01µF～0.1µF
(multilayer ceramic etc.)
Resistor to detect the
Motor current.
Setting range is
0.25Ω～1.00Ω.
Resistor and Capacitor
is to reduce the noise
of CR terminal.