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參數(shù)資料
| 型號： | TPS40090QPWRQ1 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING CONTROLLER, 1200 kHz SWITCHING FREQ-MAX, PDSO24 |
| 封裝： | GREEN, PLASTIC, TSSOP-24 |
| 文件頁數(shù)： | 13/23頁 |
| 文件大?。?/td> | 309K |
| 代理商： | TPS40090QPWRQ1 |
TA - Ambient Temperature - °C
10
20
40
60
80
100
120
20
30
40
CURRENT SENSE IMPEDANCE
vs
AMBIENT TEMPERATURE
R
T
H
E
(T
5C
)-
Current
Sense
Impedance
-
k
r
r Measured
Acquired
24
23
22
EN/SYNC
VIN
BP5
TPS40090
TLA431
12V
6V
4.7
F
m
1.1kW
13.7kW
10kW
SLUS845C
– JUNE 2008 – REVISED MAY 2011
Figure 13.
Operation With Output Voltages Higher Than 3.3 V
The TPS40090 controllers are designed to operate in power supplies with output voltages ranging from 0.7 V to
3.3 V. To support higher output voltages, mainly in 12-V to 5-V power supplies, the BP5 voltage needs to be
increased slightly to provide enough headroom to ensure linearity of current sense amplifiers. The simple circuit
on Figure 14 shows a configuration that generates a 6-V voltage source to power the controller with increased
bias voltage. Both the VIN and BP5 pins should be connected to this voltage source. The differential amplifier
normally excessive for higher-output voltages can be disabled by connecting GNDS pin to the BP5 pin.
Figure 14. Biasing the TPS40090 With a 5-V Power Supply
Design Example
A design example is available in the TPS40090EVM-001 user
’s guide (SLUU175).
20
Copyright
2008–2011, Texas Instruments Incorporated
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| TPS40090RHDR | 功能描述:DC/DC 開關控制器 4 Ch Multiph Buck DC/DC Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| TPS40090RHDRG4 | 功能描述:DC/DC 開關控制器 4Ch Multiphase Buck DC/DC Cntrlr RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| TPS40090RHDT | 功能描述:DC/DC 開關控制器 4Ch Multiphase Buck DC/DC Cntrlr RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| TPS40090RHDTG4 | 功能描述:DC/DC 開關控制器 4Ch Multiphase Buck DC/DC Cntrlr RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| TPS40091 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:HIGH FREQUENCY MULTIPHASE CONTROLLER |
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