TPA2039D1YFFEVM Datasheet, PDF (1/20 Pages) Texas Instruments – 3.2W Mono Class-D Audio Power Amplifier With 12-dB Gain and Auto Short-Circuit Recovery

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TPA2039D1
SLOS652A – DECEMBER 2009 – REVISED JUNE 2010
3.2W Mono Class-D Audio Power Amplifier
With 12-dB Gain and Auto Short-Circuit Recovery
Check for Samples: TPA2039D1
FEATURES
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• Powerful Mono Class-D Speaker Amplifier
– 3.24 W (4 Ω, 5 V, 10% THDN)
– 2.57 W (4 Ω, 5 V, 1% THDN)
– 1.80 W (8 Ω, 5 V, 10% THDN)
– 1.46 W (8 Ω, 5 V, 1% THDN)
• +12 dB Fixed Gain
• Integrated Image Reject Filter for DAC Noise
Reduction
• Low Output Noise of 27 mV
• Low Quiescent Current of 1.5 mA
• Differential Input Impedance of 150 kΩ
• Auto-Recovering Short-Circuit Protection
• Thermal-Overload Protection
• Filter-Free Mono Class-D Amp
• 9-Ball 1,21 mm × 1,16 mm 0,4mm Pitch WCSP
APPLICATIONS
• Wireless or Cellular Handsets and PDAs
• Portable Navigation Devices
• General Portable Audio Devices
DESCRIPTION
The TPA2039D1 is a 3.2 W high efficiency filter-free
class-D audio power amplifier (class-D amp) with
12 dB of fixed gain in a tiny 1.21 mm x 1.16 mm
wafer chip scale package (WCSP). The device
requires only one external component.
Features like 93% efficiency, 1.5 mA quiescent
current, 0.1 mA shutdown current, 82-dB PSRR,
27 mV output noise and improved RF immunity make
the TPA2039D1 class-D amplifier ideal for cellular
handsets. A fast start-up time of 4 ms with no audible
pop makes the TPA2039D1 ideal for PDA and
smart-phone applications.
APPLICATION CIRCUIT
Internal
Oscillator
IN+
+
PWM
–
IN-
To battery
V_DD
Cs
V_O-
H-Bridge
V_O+
EN
Bias
Circuitry
GND
TPA 2039 D1
TPA 2039D1
9-BALL 0.4mm PITCH
WAFER CHIP SCALE PACKAGE (YFF)
(TOP VIEW OF PCB)
IN+
GND
V_O-
A1
A2
A3
VDD
PVDD
PGND
B1
B2
B3
IN-
EN
V_O+
C1
C2
C3
1.214 mm
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Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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