Pioneer SX-SW77 Service Manual page 59

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