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參數資料
| 型號： | TPA2013D1RGPR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 2.7 W, 2 CHANNEL, AUDIO AMPLIFIER, PQCC20 |
| 封裝： | 4 X 4 MM, GREEN, PLASTIC, QFN-20 |
| 文件頁數： | 13/30頁 |
| 文件大小： | 949K |
| 代理商： | TPA2013D1RGPR |
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BYPASSING THE BOOST CONVERTER
Toko
1098AS-4R7M
ToshibaCRS06
SchottkyDiode
V
DD
SW
IN–
IN+
AGND
PGND
VOUT+
VOUT–
V
OUT
CC
V
IN
CC
22 F
m
22 F
m
1 F
m
ToBattery
Left
Channel
Input
C
IN
C
IN
V
FB
CC
SDb
SDd
GAIN
4.7 H
m
GND=Bypass
V
=BoostMode
DD
1 F
m
R1
50k
R2
500k
TPA2013D1
GPIO
EFFICIENCY AND THERMAL INFORMATION
JA
1
=
= 80.64 C/W
Derating Factor
0.0124
q
°
(8)
SLOS520 – AUGUST 2007
Bypass the boost converter to drive the Class-D amplifier directly from the battery. Place a Shottky diode
between the SW pin and the VCCIN pin. Select a diode that has an average forward current rating of at least 1A,
reverse breakdown voltage of 10 V or greater, and a forward voltage as small as possible. See Figure 34 for an
example of a circuit designed to bypass the boost converter.
Do not configure the circuit to bypass the boost converter if VDD is higher than VCC when the boost converter is
enabled (SDb
≥ 1.3 V); VDD must be lower than VCC for proper operation. VDD may be set to any voltage within
the recommended operating range when the boost converter is disabled (SDb
≤ 0.3V).
Place a logic high on SDb to place the TPA2013D1 in boost mode. Place a logic low on SDb to place the
TPA2013D1 in bypass mode.
Figure 34. Bypass Circuit
The maximum ambient temperature depends on the heat-sinking ability of the PCB system. The derating factors
for the YZH and RGP packages are shown in the dissipation rating table. Apply the same principles to both
packages. Using the YZH package, and converting this to
θJA:
Given
θJA of 80.64°C/W, the maximum allowable junction temperature of 150°C, and the maximum internal
dissipation of 0.317 W (VDD = 3.6 V, PO = 1.7 W), the maximum ambient temperature is calculated with the
following equation:
20
Copyright 2007, Texas Instruments Incorporated
Product Folder Link(s): TPA2013D1
相關PDF資料 |
PDF描述 |
|---|---|
| TPA2013D1YZHR | 2.7 W, 2 CHANNEL, AUDIO AMPLIFIER, BGA16 |
| TPA2013D1RGP | 2.7 W, 2 CHANNEL, AUDIO AMPLIFIER, PQCC20 |
| TPA2013D1RGPT | 2.7 W, 2 CHANNEL, AUDIO AMPLIFIER, PQCC20 |
| TPA2013D1YZHT | 2.7 W, 1 CHANNEL, AUDIO AMPLIFIER, BGA16 |
| TPA2014D1YZHT | 1.5 W, 1 CHANNEL, AUDIO AMPLIFIER, BGA16 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| TPA2013D1RGPRG4 | 功能描述:音頻放大器 2.7W Constant Output Pwr Mono Class-D RoHS:否 制造商:STMicroelectronics 產品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TPA2013D1RGPT | 制造商:Texas Instruments 功能描述:AUD AMP SPKR 1CH MONO 2.7W CLS-D 20QFN - Tape and Reel |
| TPA2013D1YZH | 制造商:TI 制造商全稱:Texas Instruments 功能描述:2.7-W CONSTANT OUTPUT POWER CLASS-D AUDIO AMPLIFIER WITH INTEGRATED BOOST CONVERTER |
| TPA2013D1YZHR | 功能描述:音頻放大器 2.7W OUTPUT PWR MONO CLASS-D AUD AMP RoHS:否 制造商:STMicroelectronics 產品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TPA2013D1YZHT | 制造商:Texas Instruments 功能描述:AUD AMP SPKR 1CH MONO 2.7W CLS-D 16DSBGA - Tape and Reel |
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