A3955Slb - Sony DPP-SV55 Service Manual

[|OTHER|]
LTB-305R4
DPP-SV55 V2
[|IC|]
A3955SLB (ALLEGRO)
A3955SLB-TR
MOTOR DRIVER
—TOP VIEW—
INPUTS
D0 - D2
PFD 1 16 V
CC
PHASE
RC
REF 2 15 OUTB
REF
PFD
RC 3 14 D0
SENSE
GND 4 13 GND
OUTPUTS
OUTA, OUTB
GND 5 12 GND
V 6 11 SENSE
CC
PHASE 7 10 OUTA
D2 8 9 D1
7
PHASE
UVLO
& TSD
PWM LATCH
MIXED-DECAY
COMPARATOR
1
R
+
PFD
Q
_
S
BLANKING
V
CC
3
RC
BA033SFP-E2 (ROHM)
VOLTAGE REFERENCE
1 : CTL
2 : V
CC
3 (FIN) : GND
4 : OUT
5 : NC
1 2 3
4 5
V
CC
2 REFERENCE
_
V
CC
VOLTAGE
+
1
CTL
Other, IC
: DATA
: INPUT DETERMINES
: RC CONNECTION FOR EXTERNAL CIRCUITRY
: REFERENCE VOLTAGE
: PERCENT FAST DECAY
: CURRENT SENSE RESISTOR CONNECTION
: OUTPUT LOAD CONNECTION
OUTA OUTB V
CC
10 15 16
V
BB
CURRENT-SENSE
COMPARATOR
BLANKING
11
GATE
+
SENSE
_
DISABLE
_3 D/A
+ _
2 8 9 14
V REF D2 D1 D0
TH
4
OUT
6-3