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參數(shù)資料
| 型號(hào)： | TPPM0101PWP |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 模擬信號(hào)調(diào)理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PDSO14 |
| 封裝： | POWER, PLASTIC, SO-14 |
| 文件頁(yè)數(shù)： | 1/7頁(yè) |
| 文件大?。?/td> | 90K |
| 代理商： | TPPM0101PWP |
TPPM0101
DUAL-CHANNEL CURRENT SOURCE SWITCH WITH REVERSE BLOCKING
SLVS370 – MARCH 2001
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D Current Limit Switch
D Low rDS(on)
D Reverse Blocking Capability
D 1.5 A Current Capability Per Channel
D Dual Channel Output
D Global Thermal Shutdown Protection
D Thermally Enhanced Packaging
description
The TPPM0101 is a power distribution and management device designed primarily for either motherboard or
PCI card 1394 host applications where the power bus for external 1394 peripheral products is required. The
TPPM0101 is an electronic switch with low rDS(on) characteristics. When fully enhanced, the switch is capable
of delivering 1.5 A to the load. A combination of unidirectional and bidirectional switches implements a reverse
blocking scheme to ensure that no current flows out of the input terminal back into the primary voltage source.
In the event that excessive leakage current or back injection on the input terminal exceeds 20 mA, all outputs
are disabled.
An over-current protection scheme is implemented such that a load current in excess of 1.5 A on a particular
channel causes that channel to operate at a 2% of duty cycle until the fault condition is removed. The other
channel operates normally. A deglitch timer (60
s typ) is implemented to prevent false triggering of over-current
protection circuitry during initial power up (in-rush current) conditions. Transient shorts to ground of less than
the deglitch timer period of 60
s (typ) are not reported as a fault. Both output power switches are independently
protected against short to ground by a current-limit feature and are active during the over-current deglitch time.
During a short condition on any output channel, that particular output operates at a duty cycle of 2% every 3 ms.
The device functionality is automatically reset after the abnormal condition is removed.
In addition to over-current protection schemes, the device has a global thermal shutdown feature to ensure that
the junction temperature does not exceed the safe operating area (SOA). When global thermal shutdown is
triggered, all outputs are disabled until the device has had sufficient time to dissipate the heat and returns within
the SOA.
The input voltage source for this device is the highest voltage applied at any one of the following terminals,
INPUT (minus internal switch voltage drop), OUT1, OUT2, or CASCADE. (See voltage source priority section
for more details.)
PR
O
DU
C
T
PREVIEW
Copyright
2001, Texas Instruments Incorporated
PRODUCT PREVIEW information concerns products in the formative or
design phase of development. Characteristic data and other
specifications are design goals. Texas Instruments reserves the right to
change or discontinue these products without notice.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
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| TPPM0110DWPR | 功能描述:低壓差穩(wěn)壓器 - LDO Dual-Output 3.3V & 1.8V RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| TPPM0110DWPRG4 | 功能描述:低壓差穩(wěn)壓器 - LDO Dual-Output 3.3V & 1.8V RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
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