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參數(shù)資料
| 型號： | TPS2231MRGP-1R |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC20 |
| 封裝： | PLASTIC, QFN-20 |
| 文件頁數(shù)： | 4/38頁 |
| 文件大小： | 1559K |
| 代理商： | TPS2231MRGP-1R |
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SYSRST
OC
FUNCTIONAL TRUTH TABLES
Truth Table for Voltage Outputs
Truth Table for Logic Outputs
SLVS536I – JULY 2004 – REVISED NOVEMBER 2007
This input is driven by the host system and directly affects PERST. Asserting SYSRST (logic low) forces PERST
to assert. RCLKEN is not affected by the assertion of SYSRST. SYSRST has an internal pullup connected to
AUXIN.
This pin is an open-drain output. When any of the three power switches (AUX, 3.3V, and 1.5V) is in an
overcurrent condition, OC is asserted (logic low) by an internal discharge FET with a deglitch delay. Otherwise,
the discharge FET is open, and the pin can be pulled up to a power supply through an external resistor.
VOLTAGE INPUTS(1)
LOGIC INPUTS
VOLTAGE OUTPUTS(2)
MODE(3)
AUXIN
3.3VIN
1.5VIN
SHDN
STBY
CP (4)
AUXOUT
3.3VOUT
1.5VOUT
Off
x
Off
OFF
On
x
0
x
GND
Shutdown
On
x
1
x
1
GND
No Card
On
1
0
On
Off
Standby
On
1
0
On
Card Inserted
(1)
For input voltages, On means the respective input voltage is higher than its turnon threshold voltage; otherwise, the voltage is Off (for
AUX input,Off means the voltage is close to zero volt).
(2)
For output voltages, On means the respective power switch is turned on so the input voltage is connected to the output; Off means the
power switch and its output discharge FET are both off; GND means the power switch is off but the output discharge FET is on so the
voltage on the output is pulled down to 0 V.
(3)
Mode assigns each set of input conditions and respective output voltage results to a different name. These modes are referred to as
input conditions in the following Truth Table for Logic Outputs.
(4)
CP = CPUSB and CPPE – equal to 1 when both CPUSB and CPPE signals are logic high, or equal to 0 when either CPUSB or CPPE is
low.
INPUT CONDITIONS
LOGIC OUTPUTS
MODE
SYSRST
RCLKEN(1)
PERST
RCLKEN(2)
OFF
Shutdown
X
0
No Card
Standby
0
Hi-Z
0
1
0
Card Inserted
1
Hi-Z
1
0
(1)
RCLKEN as a logic input in this column. RCLKEN is an I/O pin and it can be driven low externally, left open, or connected to
high-impedance terminals, such as the gate of a MOSFET. It must not be driven high externally.
(2)
RCLKEN as a logic output in this column.
12
Copyright 2004–2007, Texas Instruments Incorporated
Product Folder Link(s): TPS2231 TPS2236
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| TPS2231MRGPR | 功能描述:熱插拔功率分布 ExpressCard Sgl Pwr Interface Sw RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| TPS2231MRGPR-1 | 功能描述:熱插拔功率分布 ExpressCard Sgl Pwr Interface Sw RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| TPS2231MRGPR-1G4 | 功能描述:熱插拔功率分布 ExpressCard Sgl Pwr Interface Sw RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| TPS2231MRGPR-2 | 功能描述:熱插拔功率分布 ExpressCard Sgl Pwr Interface Sw RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| TPS2231MRGPR-2G4 | 功能描述:熱插拔功率分布 ExpressCard Sgl Pwr Interface Sw RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
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