Denon RCD-N7 Service Manual page 88

The TAS5142 is available in two thermally enhanced packages:
•
36-pin PSOP3 package (DKD)
•
44-pin HTSSOP PowerPad™ package (DDV)
Both package types contain a heat slug that is located on the top side of the device for convenient thermal
coupling to the heatsink.
TAS5142 (MAIN : IC71,72)
DKD PACKAGE
(TOP VIEW)
GVDD_B
1
OTW
2
SD
3
PWM_A
4
RESET_AB
5
PWM_B
6
OC_ADJ
7
GND
8
AGND
9
VREG
10
M3
11
M2
12
M1
13
PWM_C
14
RESET_CD
15
PWM_D
16
VDD
17
GVDD_C
18
www.ti.com
Terminal Functions
TAS5142 Pin Discriptions
TERMINAL
NAME DKD NO.
AGND 9
BST_A 35
BST_B 28
BST_C 27
BST_D 20
GND 8
GND_A 32
GND_B 31
GND_C 24
GND_D 23
GVDD_A 36
GVDD_B 1
2
GVDD_C 18
GVDD_D 19
M1 13
M2 12
M3 11
NC –
OC_ADJ 7
OTW 2
OUT_A 33
OUT_B 30
OUT_C 25
OUT_D 22
PVDD_A 34
PVDD_B 29
PVDD_C 26
PVDD_D 21
PWM_A 4
PWM_B 6
PWM_C 14
PWM_D 16
RESET_AB 5
RESET_CD 15
SD 3
VDD 17
VREG 10
(1) I = input, O = output, P = power
GVDD_B
GVDD_A
36
OTW
BST_A
35
NC
PVDD_A
34
NC
OUT_A
33
SD
GND_A
32
PWM_A
GND_B
31
RESET_AB
OUT_B
30
PWM_B
PVDD_B
29
OC_ADJ
BST_B
28
GND
BST_C
27
AGND
PVDD_C
26
VREG
OUT_C
25
M3
GND_C
24
M2
GND_D
23
M1
OUT_D
22
PWM_C
PVDD_D
21
RESET_CD
BST_D
20
PWM_D
GVDD_D
19
NC
NC
P0018-01
VDD
GVDD_C
FUNCTION
DDV NO.
11 P
43 P
34 P
33 P
24 P
10 P
38 P
37 P
30 P
29 P
44 P
1 P
22 P
23 P
15 I
14 I
13 I
3, 4, 19, 20, 25, –
42
9 O
2 O
39 O
36 O
31 O
28 O
40, 41 P
35 P
32 P
26, 27 P
6 I
8 I
16 I
18 I
7 I
17 I
5 O
21 P
12 P
DDV PACKAGE
(TOP VIEW)
44
1
43
2
42
3
41
4
40
5
39
6
38
7
37
8
36
9
10 35
34
11
12 33
32
13
14 31
30
15
29
16
28
17
27
18
26
19
SLES126B – DECEMBER 2004 – REVISED MAY 2005
25
20
24
21
23
22
(1)
DESCRIPTION
Analog ground
HS bootstrap supply (BST), external capacitor to OUT_A required
HS bootstrap supply (BST), external capacitor to OUT_B required
HS bootstrap supply (BST), external capacitor to OUT_C required
HS bootstrap supply (BST), external capacitor to OUT_D required
Ground
Power ground for half-bridge A
Power ground for half-bridge B
Power ground for half-bridge C
Power ground for half-bridge D
Gate-drive voltage supply requires 0.1-µF capacitor to AGND
Gate-drive voltage supply requires 0.1-µF capacitor to AGND
Gate-drive voltage supply requires 0.1-µF capacitor to AGND
Gate-drive voltage supply requires 0.1-µF capacitor to AGND
Mode selection pin
Mode selection pin
Mode selection pin
No connect. Pins may be grounded.
Analog overcurrent programming pin requires resistor to ground
Overtemperature warning signal, open-drain, active-low
Output, half-bridge A
Output, half-bridge B
Output, half-bridge C
Output, half-bridge D
Power supply input for half-bridge A requires close decoupling of
0.1-µF capacitor to GND_A.
Power supply input for half-bridge B requires close decoupling of
0.1-µF capacitor to GND_B.
Power supply input for half-bridge C requires close decoupling of
0.1-µF capacitor to GND_C.
Power supply input for half-bridge D requires close decoupling of
0.1-µF capacitor to GND_D.
Input signal for half-bridge A
Input signal for half-bridge B
Input signal for half-bridge C
Input signal for half-bridge D
Reset signal for half-bridge A and half-bridge B, active-low
Reset signal for half-bridge C and half-bridge D, active-low
Shutdown signal, open-drain, active-low
Power supply for digital voltage regulator requires 0.1-µF capacitor
to GND.
Digital regulator supply filter pin requires 0.1-µF capacitor to AGND.
88
GVDD_A
BST_A
NC
PVDD_A
PVDD_A
OUT_A
GND_A
GND_B
OUT_B
PVDD_B
BST_B
BST_C
PVDD_C
OUT_C
GND_C
GND_D
TAS5142
OUT_D
PVDD_D
PVDD_D
NC
BST_D
GVDD_D
P0016-02