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參數(shù)資料
| 型號(hào)： | UC1844AY |
| 廠商： | MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Single chip RDS demodulator |
| 中文描述： | 1 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, CDIP8 |
| 封裝： | CERAMIC, DIP-8 |
| 文件頁數(shù)： | 1/11頁 |
| 文件大?。?/td> | 661K |
| 代理商： | UC1844AY |
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
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 |
|---|---|
| UC1874DW-1 | High Efficiency, Synchronous, Step-down Buck Controllers |
| UC1874DW-2 | High Efficiency, Synchronous, Step-down Buck Controllers |
| UC1874J-1 | High Efficiency, Synchronous, Step-down Buck Controllers |
| UC1874L-1 | High Efficiency, Synchronous, Step-down Buck Controllers |
| UC2874L-1 | High Efficiency, Synchronous, Step-down Buck Controllers |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| UC1844D | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:SMPS Controller |
| UC1844D8 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:SMPS Controller |
| UC1844D8TR | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:SMPS Controller |
| UC1844DTR | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:SMPS Controller |
| UC1844J | 制造商:Texas Instruments 功能描述:Current Mode PWM Controller 1A 8-Pin CDIP Tube 制造商:Texas Instruments 功能描述:CURRENT MODE PWM CNTRLR 1A 8CDIP - Rail/Tube 制造商:Texas Instruments 功能描述:CUR MODE PWM CONTROLLER |
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