參數(shù)資料
型號(hào)： UC2878
廠(chǎng)商： Texas Instruments, Inc.
英文描述： Phase Shift Resonant Controller
中文描述： 相移諧振控制器
文件頁(yè)數(shù)： 9/19頁(yè)
文件大?。?/td> 721K
代理商： UC2878
9
UC1875/6/7/8
UC2875/6/7/8
UC3875/6/7/8
In each of the output stages, transistors Q3 through Q6
form a high-speed totem-pole driver which will source
or sink more than one amp peak with a total delay of
approximately 30 nanoseconds. To ensure a low output
level prior to turn-on, transistors Q7 through Q9 form a
self-biased driver to hold Q6 on prior to the supply
reaching its turn-on threshold. This circuit is operable
when the chip supply is zero. Q6 is also turned on and
held low with a signal from the fault logic portion of the
chip.
APPLICATION INFORMATION (cont.)
Delay Blocks And Output Stages
The delay providing the dead-time is accomplished with
C1 which must discharge to V
TH
before the output can
go high. The time is defined by the current sources, I1,
which is programmed by an external resistor, R
TD
. The
voltage on the Delay Set pins is internally regulated to
2.5V and the range of dead time control is
from 50 to 200 nanoseconds. NOTE: There is no way
to disable the delay circuitry, and the delay time must
be programmed.
The four outputs of the UC1875/6/7/8 interface to the full bridge converter switches as shown below:
Output Switch Orientation
UDG-95083
UDG-95082
3 Winding Bifilar, AWG 30 Kynar Insulation
相關(guān)PDF資料
PDF描述
UC2878L Phase Shift Resonant Controller
UC3875J Phase Shift Resonant Controller
UC3875L Phase Shift Resonant Controller
UC3876L Phase Shift Resonant Controller
UC3877L Phase Shift Resonant Controller
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
UC2879DW 功能描述:軟開(kāi)關(guān) PWM 控制器 Phase Shift Resonant Controller RoHS:否 制造商:Fairchild Semiconductor 輸出端數(shù)量: 輸出電流: 開(kāi)關(guān)頻率: 工作電源電壓:30 V 電源電流: 最大工作溫度:+ 105 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel
UC2879DWG4 功能描述:軟開(kāi)關(guān) PWM 控制器 Phase Shift Resonant Controller RoHS:否 制造商:Fairchild Semiconductor 輸出端數(shù)量: 輸出電流: 開(kāi)關(guān)頻率: 工作電源電壓:30 V 電源電流: 最大工作溫度:+ 105 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel
UC2879DWTR 功能描述:軟開(kāi)關(guān) PWM 控制器 Phase Shift Resonant Controller RoHS:否 制造商:Fairchild Semiconductor 輸出端數(shù)量: 輸出電流: 開(kāi)關(guān)頻率: 工作電源電壓:30 V 電源電流: 最大工作溫度:+ 105 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel
UC2879DWTR/81362 制造商:Texas Instruments 功能描述:
UC2879DWTRG4 功能描述:軟開(kāi)關(guān) PWM 控制器 Phase Shift Resonant Controller RoHS:否 制造商:Fairchild Semiconductor 輸出端數(shù)量: 輸出電流: 開(kāi)關(guān)頻率: 工作電源電壓:30 V 電源電流: 最大工作溫度:+ 105 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel
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