參數(shù)資料
型號(hào)： UCC35706DTR
廠商： TEXAS INSTRUMENTS INC
元件分類： 穩(wěn)壓器
英文描述： 0.02 A SWITCHING CONTROLLER, 4000 kHz SWITCHING FREQ-MAX, PDSO8
封裝： GREEN, PLASTIC, MS-012AA, SOP-8
文件頁(yè)數(shù)： 1/21頁(yè)
文件大小： 604K
代理商： UCC35706DTR
UCC25705, UCC25706, UCC35705, UCC35706
HIGH-SPEED VOLTAGE MODE PULSE WIDTH MODULATOR
SLUS473B -- NOVEMBER 1999 -- REVISED OCTOBER 2010
1
www.ti.com
D
Greater Than 4-MHz Operation
D
Integrated Oscillator / Voltage Feed Forward
Compensation
D
>4:1 Input Voltage Range
D
25-ns Current Limit Delay
D
Programmable Maximum Duty Cycle Clamp
D
Optocoupler Interface
D
50-μA Start-Up Current
D
4.2-mA Operating Current @ 1 MHz
D
Smallest Footprint of the 8-pin MSOP
Package Minimizes Board Area and Height
description
The UCC35705 and UCC35706 devices are 8-pin voltage mode primary side controllers with fast over-current
protection. These devices are used as core high-speed building blocks in high performance isolated and non-isolated
power converters.
UCC35705/UCC35706 devices feature a high speed oscillator with integrated feed-forward compensation for
improved converter performance. A typical current sense to output delay time of 25 ns provides fast response to
overload conditions. The IC also provides an accurate programmable maximum duty cycle clamp for increased
protection which can also be disabled for the oscillator to run at maximum possible duty cycle.
Two UVLO options are offered. The UCC35705 with lower turn-on voltage is intended for dc-to-dc converters while
the higher turn-on voltage and the wider UVLO range of the UCC35706 is better suited for offline applications.
The UCC35705/UCC35706 family is offered in 8-pin MSOP (DGK), SOIC (D) and PDIP (P) packages.
typical application schematic
UDG-99181
VDD
OUT
GND
RC
ILIM
VFF
DISCH
UCC35705/6
+
--
VOUT
+
V
IN
SOFT
START
CIRCUIT
4
5
3
6
8
7
1
TPS2829
--
FB 2
MODE = 1
FET DRIVER
Copyright 2001 -- 2010, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
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.
1
2
3
4
8
7
6
5
ILIM
FB
VFF
DISCH
VDD
OUT
GND
RC
D, OR P PACKAGE
(TOP VIEW)
ILIM
2
1
4
3
7
8
5
6
FB
VFF
DISCH
VDD
OUT
GND
RC
DGK PACKAGE
(TOP VIEW)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
UCC35706DTRG4 功能描述:電壓模式 PWM 控制器 High Speed Vltg Mode RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel
UCC35706P 功能描述:電壓模式 PWM 控制器 High Speed Vltg Mode RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel
UCC35706PG4 功能描述:電壓模式 PWM 控制器 High Speed Vltg Mode RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel
UCC3570D 功能描述:電壓模式 PWM 控制器 Lo Pwr PWM RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel
UCC3570DG4 功能描述:電壓模式 PWM 控制器 Lo Pwr PWM RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel
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