Pioneer SX-SW77, Service Manual

Page: 59 / 72

SX-SW77
59
5 6 7 8
5 6
7
8
C
D
F
A
B
E
Pin Function
No. Pin Name I/O Pin Function No. Pin Name I/O Pin Function
1 GND
−
Power ground 29 GND
−
Power ground
2 GND
−
Power ground 30 GVDD
−
Voltage supply to on-chip gate drive and
digital supply voltage regulators
3 GREG
−
Gate drive voltage regulator decoupling
pin, capacitor connected to REG_GND
31 BST_D
−
HS bootstrap supply (BST), external
capacitor to OUT_D required
4 DVDD
−
I/O reference supply input (3.3V) 32 PVDD_D
−
Power supply input for half-bridge D
5 GND
−
Power ground 33 PVDD_D
−
Power supply input for half-bridge D
6 DGND
−
Digital I/O reference ground 34
OUT_D
O Output, half-bridge D
7 GND
−
Power ground 35 OUT_D O Output, half-bridge D
8 PWM_AP I Input signal (positive), half-bridge A 36
GND
−
Power ground
9 PWM_AM I Input signal (negative), half-bridge A 37
GND
−
Power ground
10 RESET_AB I Reset signal, active low 38 OUT_C O Output, half-bridge C
11 PWM_BM I Input signal (negative), half-bridge B 39 OUT_C O Output, half-bridge C
12 PWM_BP I Input signal (positive), half-bridge B 40 PVDD_C
−
Power supply input for half-bridge C
13 DREG
−
Digital supply voltage regulator decoupling
pin, capacitor connected to GND
41 PVDD_C
−
Power supply input for half-bridge C
14 M1 I Mode selection pin
42
BST_C
−
HS bootstrap supply (BST), external
capacitor to OUT_C required
15 M2 I Mode selection pin 43 BST_B
−
HS bootstrap supply (BST), external
capacitor to OUT_B required
16 M3 I Mode selection pin 44
PVDD_B
−
Power supply input for half-bridge B
17 DREG_RTN
−
Digital supply voltage regulator
decoupling return pin
45
PVDD_B
−
Power supply input for half-bridge B
18 PWM_CP I Input signal (positive), half-bridge C 46 OUT_B O Output, half-bridge B
19 PWM_CM I Input signal (negative), half-bridge C 47 OUT_B O Output, half-bridge B
20 RESET_CD I Reset signal, active low 48 GND
−
Power ground
21 PWM_DM I Input signal (negative), half-bridge D 49 GND
−
Power ground
22 PWM_DP I Input signal (positive), half-bridge D 50
OUT_A
O Output, half-bridge A
23 SD_AB O
Shutdown signal for half-bridges A and
B,active-low 51
OUT_A
O Output, half-bridge A
24 SD_CD O
Shutdown signal for half-bridges C and
D,active-low 52 PVDD_A
−
Power supply input for half-bridge A
25 OTW O
Overtemperature warning output, open
drain with internal pullup resistor
53
PVDD_A
−
Power supply input for half-bridge A
26 GREG O
Gate drive voltage regulator decoupling
pin, capacitor connected to REG_GND
54 BST_A
−
HS bootstrap supply (BST), external
capacitor to OUT_A required
27 GND
−
Power ground
55 GVDD I
Voltage supply to on-chip gate drive and
digital supply voltage regulators
28 GND
−
Power ground 56
GND
−
Power ground