LB11996H SANYO [Sanyo Semicon Device], LB11996H Datasheet - Page 9

• Manufacturer Part Number: LB11996H
• Description: Three-Phase Brushless Motor Driver for CD-ROM Spindle Motor Driver
• Manufacturer: SANYO [Sanyo Semicon Device]

Continued from preceding page
Pin number
24 (1)
23 (2)
1 (28)
2 (27)
(12)
(23)
(8)
(7)
18
19
16
(6)
(4)
20
21
(5)
22
5
PWR GND
Pin name
SIG GND
BRAKE
FGSEL
V
W
V
U
CREF
FC
V
OUT
RF
OUT
OUT
C
0V to V
Pin voltage
0V to 3.5V
CC
1
( 4 )
22
15 A
200
100 A
LB11996,11996H
3.9
3.9
25
( 6 )
20
Equivalent circuit
A
51k
50k
50k
75k
75k
25 A
20k
( 23 )
( 1 )
(2 28 27)
23
24
5
•
15 A
V CC 1
( 12 )
2k
1
16
V CC 1
V CC 2
( 7 )
200
19
•
V CC 1
5k
2
( 5 )
21
V CC 1
GND pin for all circuits except output.
Control reference voltage applied pin.
Determines control start voltage.
Control loop frequency compensator
pin.
W-phase output.
Upper side output NPN transistor
collector pin (common for all 3
phases).
For current detection, connect
resistor between V
pin. Constant current control and
current limiter works by detecting this
voltage.
Connecting a capacitor between this
pin and GND prevents closed loop
oscillation in current limiting circuitry.
Speed control voltage applied pin.
V type control technique
V
V
(Reverse-blocking circuit prevents
reverse rotation.)
Output transistor GND.
V-phase output.
U-phase output.
3 Hall FG/1 Hall FG select pin.
FGSEL:
High –> 3 Hall FG
Low/Open –> 1 Hall FG
Short brake pin.
BRAKE:
High –> Brake
Low/Open –> Drive
C
C
> V
< V
CREF
CREF
Pin function
: Forward
: Slowdown
Unit (resistance:
CC
3 pin and RF
No. 6181-9/10
)