參數(shù)資料
型號(hào)： UC1842AJQMLV
廠商： Texas Instruments, Inc.
元件分類： 圓形連接器
英文描述： Circular Connector; No. of Contacts:79; Series:MS27473; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:20; Circular Contact Gender:Pin; Circular Shell Style:Straight Plug; Insert Arrangement:20-35 RoHS Compliant: No
中文描述： 電流模式PWM控制器
文件頁數(shù)： 1/11頁
文件大?。?/td> 661K
代理商： UC1842AJQMLV
UC1842A/3A/4A/5A
UC2842A/3A/4A/5A
UC3842A/3A/4A/5A
SLUS224A - SEPTEMBER 1994 - REVISED APRIL 2002
Optimized for Off-line and DC to DC
Converters
Low Start Up Current (<0.5mA)
Trimmed Oscillator Discharge Current
Automatic Feed Forward Compensation
Pulse-by-Pulse Current Limiting
Enhanced Load Response Characteristics
Under-Voltage Lockout With Hysteresis
Double Pulse Suppression
High Current Totem Pole Output
Internally Trimmed Bandgap Reference
500kHz Operation
Low R
O
Error Amp
Current Mode PWM Controller
The UC1842A/3A/4A/5A family of control ICs is a pin for pin compati-
ble improved version of the UC3842/3/4/5 family. Providing the nec-
essary features to control current mode switched mode power
supplies, this family has the following improved features. Start up cur-
rent is guaranteed to be less than 0.5mA. Oscillator discharge is
trimmed to 8.3mA. During under voltage lockout, the output stage
can sink at least 10mA at less than 1.2V for V
CC
over 5V.
The difference between members of this family are shown in the table
below.
BLOCK DIAGRAM
FEATURES
DESCRIPTION
application
INFO
available
Part #
UVLO On
UVLO Off
Maximum Duty
Cycle
<100%
<100%
<50%
<50%
UC1842A
UC1843A
UC1844A
UC1845A
16.0V
8.5V
16.0V
8.5V
10.0V
7.9V
10.0V
7.9V
Note 1:
Note 2: Toggle flip flop used only in 1844A and 1845A.
A = DIL-8 Pin Number. B = SO-14 Pin Number.
A/B
相關(guān)PDF資料
PDF描述
UC1843AJQMLV Circular Connector; No. of Contacts:79; Series:MS27473; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:20; Circular Contact Gender:Pin; Circular Shell Style:Straight Plug; Insert Arrangement:20-35 RoHS Compliant: No
UC1844AJQMLV Current Mode PWM Controller
UC1842ALQMLV Circular Connector; No. of Contacts:15; Series:MS27497; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:14; Circular Contact Gender:Socket; Circular Shell Style:Wall Mount Receptacle RoHS Compliant: No
UC1843ALQMLV Circular Connector; No. of Contacts:18; Series:MS27497; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:14; Circular Contact Gender:Pin; Circular Shell Style:Wall Mount Receptacle; Insert Arrangement:14-18 RoHS Compliant: No
UC1844ALQMLV Current Mode PWM Controller
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
UC1842AL 制造商:Texas Instruments 功能描述:- Rail/Tube
UC1842AL883B 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述:
UC1842ALQMLV 制造商:Texas Instruments 功能描述:CURRENT MODE PWM CNTRLR 1A 20LCCC - Rail/Tube
UC1842AMDREP 功能描述:電流型 PWM 控制器 Mil Enh Current-Mode PWM Cntrlr RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14
UC1842A-SP 制造商:TI 制造商全稱:Texas Instruments 功能描述:QML CLASS V, CURRENT-MODE PWM CONTROLLERS
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