參數(shù)資料
型號(hào): TPS2112APWR
廠商: TEXAS INSTRUMENTS INC
元件分類: 電源管理
英文描述: 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8
封裝: GREEN, PLASTIC, TSSOP-8
文件頁數(shù): 25/27頁
文件大小: 714K
代理商: TPS2112APWR
IN1
IN2
OUT
GND
6
7
8
5
4
STAT
EN
VSNS
ILIM
GND
1
2
3
STAT
EN
VSNS
ILIM
IN1
OUT
IN2
GND
1
2
3
4
8
7
6
5
www.ti.com
SBVS045B – MARCH 2004 – REVISED MARCH 2010
DEVICE INFORMATION
TRUTH TABLE
EN
VI(VSNS) > 0.8 V
(1)
VI(IN2) > VI(IN1)
STAT
OUT(2)
0
Yes
X
0
IN1
0
No
0
IN1
0
No
Yes
Hi-Z
IN2
1
X
0
Hi-Z
(1)
X = Don’t care.
(2)
The undervoltage lockout circuit causes the output (OUT) to go Hi-Z if the selected power supply does not exceed the IN1/IN2 UVLO, or
if neither of the supplies exceeds the internal VDD UVLO.
PIN CONFIGURATIONS
PW PACKAGE
DRB PACKAGE
TSSOP-8
SON-8
(TOP VIEW)
Table 1. TERMINAL FUNCTIONS
TERMINAL
NAME
NO.
I/O
DESCRIPTION
TTL- and CMOS-compatible input with a 1-mA pull-up. The Truth Table illustrates the
EN
2
I
functionality of EN.
GND
5
Power
Ground
Primary power switch input. The IN1 switch can be enabled only if the IN1 supply is above
IN1
8
I
the UVLO threshold and at least one supply exceeds the internal VDD UVLO.
Secondary power switch input. The IN2 switch can be enabled only if the IN2 supply is
IN2
6
I
above the UVLO threshold and at least one supply exceeds the internal VDD UVLO.
A resistor (RILIM) from ILIM to GND sets the current limit (IL) to 250/RILIM and 500/RILIM for
ILIM
4
I
the TPS2112A and TPS2113A, respectively.
OUT
7
O
Power switch output
STAT is an open-drain output that is Hi-Z if the IN2 switch is ON. STAT pulls low if the IN1
STAT
1
O
switch is ON or if OUT is Hi-Z (that is, EN is equal to logic '0')
An internal power FET connects OUT to IN1 if the VSNS voltage is greater than 0.8 V.
VSNS
3
I
Otherwise, the FET connects OUT to the higher of IN1 and IN2. The Truth Table illustrates
the functionality of VSNS.
DRB package only. Connect to GND. Must be connected to large copper area in order to
Pad
Power
meet stated package dissipation ratings.
Copyright 2004–2010, Texas Instruments Incorporated
7
Product Folder Link(s): TPS2112A TPS2113A
相關(guān)PDF資料
PDF描述
TWC16A30701BB FIBER OPTIC SPLITTER/COUPLER, 1X16PORT, 70/30, SC/UPC CONNECTOR
TWC16A30701LA FIBER OPTIC SPLITTER/COUPLER, 1X16PORT, 70/30, FC/UPC CONNECTOR
TWC16A30701R2 FIBER OPTIC SPLITTER/COUPLER, 1X16PORT, 70/30, FC/APC CONNECTOR
TWC14P30702B0 FIBER OPTIC SPLITTER/COUPLER, 1X4PORT, 70/30
TWC18A30702RB FIBER OPTIC SPLITTER/COUPLER, 1X8PORT, 70/30, SC/UPC CONNECTOR
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPS2112APWRG4 功能描述:電源開關(guān) IC - 配電 Autoswitching Power Mux RoHS:否 制造商:Exar 輸出端數(shù)量:1 開啟電阻(最大值):85 mOhms 開啟時(shí)間(最大值):400 us 關(guān)閉時(shí)間(最大值):20 us 工作電源電壓:3.2 V to 6.5 V 電源電流(最大值): 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-23-5
TPS2112PW 功能描述:電源開關(guān) IC - 配電 Dual In/Single Out Autoswitch Power MUX RoHS:否 制造商:Exar 輸出端數(shù)量:1 開啟電阻(最大值):85 mOhms 開啟時(shí)間(最大值):400 us 關(guān)閉時(shí)間(最大值):20 us 工作電源電壓:3.2 V to 6.5 V 電源電流(最大值): 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-23-5
TPS2112PWG4 功能描述:電源開關(guān) IC - 配電 Dual In/Single Out Autoswitch Power MUX RoHS:否 制造商:Exar 輸出端數(shù)量:1 開啟電阻(最大值):85 mOhms 開啟時(shí)間(最大值):400 us 關(guān)閉時(shí)間(最大值):20 us 工作電源電壓:3.2 V to 6.5 V 電源電流(最大值): 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-23-5
TPS2112PWR 功能描述:電源開關(guān) IC - 配電 Dual In/Single Out Autoswitch Power MUX RoHS:否 制造商:Exar 輸出端數(shù)量:1 開啟電阻(最大值):85 mOhms 開啟時(shí)間(最大值):400 us 關(guān)閉時(shí)間(最大值):20 us 工作電源電壓:3.2 V to 6.5 V 電源電流(最大值): 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-23-5
TPS2112PWRG4 功能描述:電源開關(guān) IC - 配電 Dual In/Single Out Autoswitch Power MUX RoHS:否 制造商:Exar 輸出端數(shù)量:1 開啟電阻(最大值):85 mOhms 開啟時(shí)間(最大值):400 us 關(guān)閉時(shí)間(最大值):20 us 工作電源電壓:3.2 V to 6.5 V 電源電流(最大值): 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-23-5