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參數資料
| 型號： | TPS65167ARHARG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩壓器 |
| 英文描述： | 4.9 A SWITCHING REGULATOR, 900 kHz SWITCHING FREQ-MAX, PQCC40 |
| 封裝： | 6 X 6 MM, GREEN, PLASTIC, MO-220VJJD-2, QFN-40 |
| 文件頁數： | 7/41頁 |
| 文件大小： | 1270K |
| 代理商： | TPS65167ARHARG4 |
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200
s/div
m
CTRL
VGH
Temperature Sensor Output TEMP
Thermal Shutdown
Undervoltage Lockout
Short circuit protection (all outputs)
SLVS760C – APRIL 2007 – REVISED MARCH 2008
Figure 22. Power-up Sequencing (REGOUT vs VREF)
This is implemented by connecting a 4.7
F bypass capacitor to REGOUT and a 100 nF bypass capacitor to the
REF pin. If the bypass capacitor on the REF pin is selected larger than 100 nF, then the bypass capacitor on
REGOUT needs to be increased accordingly. Refer to Table 2 to properly select a bypass capacitor.
The REF pin provides a reference output which is used to regulate the negative charge pump. In order to have a
stable reference voltage, a 100 nF bypass capacitor is required, which needs to be connected directly from REF
to GND (pin 37) for best noise immunity. The reference output has a current capability of 30
A which must not
be exceeded. Therefore, the feedback resistor value from FBN to REF must not be smaller than 40 k
.
Table 2. Bypass Capacitor Selection
REGOUT
Type/Rating
REF
Type
Option 1
4.7
F
X7R or X5R/10V
100 nF
x7R or X5R
Option 2
10
F
X7R or X5R/10V
220 nF or 100 nF
x7R or X5R
The device provides a temperature sensor output measuring the actual chip temperature. This pin has an analog
output capable of driving 200
A. The TEMP pin requires a 1 nF output capacitor to provide a stable output
voltage. At 85
°C, the typical output voltage is 2.037 V with a temperature coefficient of 5.9 mV/°C. See Figure 16
for the output characteristic of the temperature output.
A thermal shutdown is implemented to prevent damages due to excessive die temperatures. Once the thermal
shutdown is exceeded, the device enters shutdown. The device can be enabled again by cycling the EN pin or
input voltage to ground.
To avoid mis-operation of the device at low input voltages an undervoltage lockout is included which shuts down
the device at voltages lower than 5.2 V.
All the outputs have a short circuit protection implemented.
Copyright 2007–2008, Texas Instruments Incorporated
15
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| TPS65167EVM-277 | 功能描述:電源管理IC開發工具 TPS65167 Eval Mod RoHS:否 制造商:Maxim Integrated 產品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| TPS65167RHAR | 功能描述:其他電源管理 Compact LCD Bias Supply RoHS:否 制造商:Texas Instruments 輸出電壓范圍: 輸出電流:4 mA 輸入電壓范圍:3 V to 3.6 V 輸入電流: 功率耗散: 工作溫度范圍:- 40 C to + 110 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-48 封裝:Reel |
| TPS65167RHARG4 | 功能描述:LCD 驅動器 12V/3.5A(I/O) 4-CH Multi-Converter RoHS:否 制造商:Maxim Integrated 數位數量:4.5 片段數量:30 最大時鐘頻率:19 KHz 工作電源電壓:3 V to 3.6 V 最大工作溫度:+ 85 C 最小工作溫度:- 20 C 封裝 / 箱體:PDIP-40 封裝:Tube |
| TPS65167RHAT | 功能描述:其他電源管理 Compact LCD Bias Supply RoHS:否 制造商:Texas Instruments 輸出電壓范圍: 輸出電流:4 mA 輸入電壓范圍:3 V to 3.6 V 輸入電流: 功率耗散: 工作溫度范圍:- 40 C to + 110 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-48 封裝:Reel |
| TPS65167RHATG4 | 功能描述:LCD 驅動器 12V/3.5A(I/O) 4-CH Multi-Converter RoHS:否 制造商:Maxim Integrated 數位數量:4.5 片段數量:30 最大時鐘頻率:19 KHz 工作電源電壓:3 V to 3.6 V 最大工作溫度:+ 85 C 最小工作溫度:- 20 C 封裝 / 箱體:PDIP-40 封裝:Tube |
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