Datasheet

TAS5631B
www.ti.com SLES263C –NOVEMBER 2010–REVISED SEPTEMBER 2012
PIN FUNCTIONS
PIN
Function
(1)
DESCRIPTION
NAME PHD NO. DKD NO.
AGND 8 10 P Analog ground
BST_A 54 43 P HS bootstrap supply (BST); external 0.033-μF capacitor to OUT_A required
BST_B 41 34 P HS bootstrap supply (BST); external 0.033-μF capacitor to OUT_B required
BST_C 40 33 P HS bootstrap supply (BST); external 0.033-μF capacitor to OUT_C required
BST_D 27 24 P HS bootstrap supply (BST); external 0.033-μF capacitor to OUT_D required
CLIP 18 — O Clipping warning; open drain; active-low
C_STARTUP 3 5 O Start-up ramp requires a charging capacitor of 4.7 nF to AGND.
TEST 12 14 I Connect to VREG node
GND 7, 23, 24, 57, 58 9 P Ground
GND_A 48, 49 38 P Power ground for half-bridge A
GND_B 46, 47 37 P Power ground for half-bridge B
GND_C 34, 35 30 P Power ground for half-bridge C
GND_D 32, 33 29 P Power ground for half-bridge D
GVDD_A 55 — P Gate drive voltage supply requires 0.1-μF capacitor to AGND.
GVDD_B 56 — P Gate drive voltage supply requires 0.1-μF capacitor to AGND.
GVDD_C 25 — P Gate drive voltage supply requires 0.1-μF capacitor to AGND.
GVDD_D 26 — P Gate drive voltage supply requires 0.1-μF capacitor to AGND.
GVDD_AB — 44 P Gate drive voltage supply requires 0.22-μF capacitor to AGND.
GVDD_CD — 23 P Gate drive voltage supply requires 0.22-μF capacitor to AGND.
INPUT_A 4 6 I Input signal for half-bridge A
INPUT_B 5 7 I Input signal for half-bridge B
INPUT_C 10 12 I Input signal for half-bridge C
INPUT_D 11 13 I Input signal for half-bridge D
M1 20 20 I Mode selection
M2 21 21 I Mode selection
M3 22 22 I Mode selection
NC 59–62 – — No connect; pins may be grounded.
NC 13, 14 15, 16 — No connect; pins may be grounded.
OC_ADJ 1 3 O Analog overcurrent programming pin requires resistor to ground.
OTW — 18 O Overtemperature warning signal, open-drain, active-low
OTW1 16 — O Overtemperature warning signal, open-drain, active-low
OTW2 17 — O Overtemperature warning signal, open-drain, active-low
OUT_A 52, 53 39, 40 O Output, half-bridge A
OUT_B 44, 45 36 O Output, half-bridge B
OUT_C 36, 37 31 O Output, half-bridge C
OUT_D 28, 29 27, 28 O Output, half-bridge D
PSU_REF 63 1 P PSU reference requires close decoupling of 4.7 μF to AGND.
Power-supply input for half-bridge A requires close decoupling with 2.2μF capacitor to
PVDD_A 50, 51 41, 42 P
GND_A.
Power-supply input for half-bridge B requires close decoupling with 2.2μF capacitor to
PVDD_B 42, 43 35 P
GND_B.
Power-supply input for half-bridge C requires close decoupling with 2.2µF capacitor to
PVDD_C 38, 39 32 P
GND_C.
Power-supply input for half-bridge D requires close decoupling with 2.2μF capacitor to
PVDD_D 30, 31 25, 26 P
GND_D.
READY 19 19 O Normal operation; open-drain; active-high
RESET 2 4 I Device reset input; active-low
SD 15 17 O Shutdown signal; open-drain, active-low
Power supply for digital voltage regulator requires a 47-μF capacitor in parallel with a 0.1-
VDD 64 2 P
μF capacitor to GND for decoupling.
VI_CM 6 8 O Analog comparator reference node requires close decoupling of 4.7 μF to AGND.
(1) I = Input, O = Output, P = Power
Copyright © 2010–2012, Texas Instruments Incorporated Submit Documentation Feedback 5
Product Folder Links: TAS5631B