TPA2006D1_15 Datasheet, PDF (1/32 Pages) Texas Instruments – TPA2006D1 1.45-W MONO Filter-free Class-D Audio Power Amplifier with 1.8-V Compatible Input Thresholds

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TPA2006D1
SLOS498B – SEPTEMBER 2006 – REVISED SEPTEMBER 2015
TPA2006D1 1.45-W MONO Filter-free Class-D Audio Power Amplifier with 1.8-V
Compatible Input Thresholds
1 Features
•1 Maximum Battery Life and Minimum Heat
– Efficiency With an 8-Ω Speaker:
– 88% at 400 mW
– 80% at 100 mW
– 2.8-mA Quiescent Current
– 0.5-μA Shutdown Current
• SHUTDOWN Pin has 1.8-V Compatible
Thresholds
• Capable of Driving an
8-Ω Speaker (2.5 V ≤ V_DD ≤ 5.5 V) and a
4-Ω Speaker (2.5 V ≤ V_DD ≤ 4.2 V)
• Only Three External Components
– Optimized PWM Output Stage Eliminates LC
Output Filter
– Internally Generated 250-kHz Switching
Frequency Eliminates Capacitor and Resistor
– Improved PSRR (–75 dB) and Wide Supply
Voltage (2.5 V to 5.5 V) Eliminates Need for a
Voltage Regulator
– Fully Differential Design Reduces RF
Rectification and Eliminates Bypass Capacitor
– Improved CMRR Eliminates Two Input
Coupling Capacitors
• Space-Saving 3 mm x 3 mm VSON Package
(DRB)
2 Applications
Ideal for Wireless or Cellular Handsets and PDAs
3 Description
The TPA2006D1 device is a 1.45-W high efficiency
filter-free class-D audio power amplifier in a 3 mm × 3
mm VSON package that requires only three external
components. The SHUTDOWN pin is fully compatible
with 1.8-V logic GPIO, such as are used on low-
power cellular chipsets.
Features like 88% efficiency, –75-dB PSRR,
improved RF-rectification immunity, and small total
PCB footprint make the TPA2006D1 device ideal for
cellular handsets. A fast start-up time of 1 ms with
minimal pop makes the TPA2006D1 device ideal for
PDA applications.
In cellular handsets, the earpiece, speaker phone,
and melody ringer can each be driven by the
TPA2006D1 device. The TPA2006D1 device allows
independent gain while summing signals from
separate sources, and has a low 36-μV noise floor,
A-weighted.
The TPA2006D1 device has short-circuit and thermal
protection.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPA2006D1
VSON (8)
3.00 mm ×3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
Application Circuit
+ ^RI IN+
Differential
Input
- ^RI IN-
Internal
Oscillator
PWM
+
_
To Battery
V_DD
C_S
H-
V_O+
Bridge
V_O-
SHUTDOWN
Bias
Circuitry
GND
TPA2006D1
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.