參數(shù)資料
型號： TPS2231MRGP
廠商： Texas Instruments, Inc.
英文描述： ExpressCard TM POWER INTERFACE SWITCH
中文描述： 商標(biāo)的ExpressCard電源接口開關(guān)
文件頁數(shù)： 12/35頁
文件大?。?/td> 1352K
代理商： TPS2231MRGP
www.ti.com
SYSRST
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.
OC
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.
FUNCTIONAL TRUTH TABLES
Truth Table for Voltage Outputs
Truth Table for Logic Outputs
TPS2231
TPS2236
SLVS536E–JULY 2004–REVISED SEPTEMBER 2006
Detailed Pin Descriptions (continued)
VOLTAGE INPUTS
(1)
AUXIN
3.3VIN
Off
On
On
On
On
On
On
LOGIC INPUTS
STBY
x
x
x
0
1
VOLTAGE OUTPUTS
(2)
AUXOUT
3.3VOUT
Off
GND
GND
On
On
MODE
(3)
1.5VIN
x
x
x
On
On
SHDN
x
0
1
1
1
CP
(4)
x
x
1
0
0
1.5VOUT
Off
GND
GND
Off
On
x
x
x
Off
GND
GND
Off
On
OFF
Shutdown
No Card
Standby
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).
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.
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
.
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.
(2)
(3)
(4)
INPUT CONDITIONS
SYSRST
LOGIC OUTPUTS
MODE
OFF
Shutdown
No Card
Standby
RCLKEN
(1)
PERST
RCLKEN
(2)
X
X
0
0
0
0
1
1
Hi-Z
0
Hi-Z
0
0
0
1
0
1
0
1
0
Card Inserted
(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.
RCLKEN as a logic output in this column.
(2)
12
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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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