TPA2039D1YFFEVM Datasheet, PDF (4/20 Pages) Texas Instruments – 3.2W Mono Class-D Audio Power Amplifier With 12-dB Gain and Auto Short-Circuit Recovery

TPA2039D1
SLOS652A – DECEMBER 2009 – REVISED JUNE 2010
OPERATING CHARACTERISTICS (continued)
V_DD = 3.6 V, T_A = 25°C, R_L = 8 Ω (unless otherwise noted)
PARAMETER
TEST CONDITIONS
V_DD = 3.6 V, V_O+ shorted to VDD
I_SC
Short circuit protection
threshold
V_DD = 3.6 V, V_O– shorted to VDD
V_DD = 3.6 V, V_O+ shorted to GND
V_DD = 3.6 V, V_O– shorted to GND
V_DD = 3.6 V, V_O+ shorted to V_O–
Time for which output is
disabled after a short circuit
T_AR
event, after which
auto-recovery trials are
V_DD = 2.5 V to 5.5 V
continuously made
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MIN TYP MAX UNIT
2
2
2
A
2
2
100
ms
TERMINAL
NAME
WCSP BALL
IN–
C1
IN+
A1
V_O-
A3
V_O+
C3
GND
A2
PGND
B3
V_DD
B1
PV_DD
B2
EN
C2
Terminal Functions
I/O
DESCRIPTION
I Negative differential audio input.
I Positive differential audio input.
O Negative BTL audio output.
O Positive BTL audio output.
I
Analog ground terminal. Must be connected to same potential as PGND using a direct connection
to a single point ground.
I
High-current Analog ground terminal. Must be connected to same potential as GND using a direct
connection to a single point ground.
I
Power supply terminal. Must be connected to same power supply as PV_DD using a direct
connection. Voltage must be within values listed in Recommended Operating Conditions table.
High-current Power supply terminal. Must be connected to same power supply as V_DD using a
I direct connection. Voltage must be within values listed in Recommended Operating Conditions
table.
I Enable terminal. Connect to Logic High voltage to enable device, Logic Low voltage to disable
(shutdown).
FUNCTIONAL BLOCK DIAGRAM
Input
EN
Buffer
SC
300 KΩ
4
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