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參數(shù)資料
| 型號： | UCC1803L |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | Low-Power BiCMOS Current-Mode PWM |
| 中文描述： | 低功耗BiCMOS電流模式PWM |
| 文件頁數(shù)： | 1/20頁 |
| 文件大?。?/td> | 383K |
| 代理商： | UCC1803L |
UCC1800/1/2/3/4/5
UCC2800/1/2/3/4/5
UCC3800/1/2/3/4/5
SLUS270C
- MARCH 1999 - REVISED JANUARY 2005
FEATURES
100
μ
A Typical Starting Supply Current
500
μ
A Typical Operating Supply
Current
Operation to 1MHz
Internal Soft Start
Internal Fault Soft Start
Internal Leading-Edge Blanking of the
Current Sense Signal
1 Amp Totem-Pole Output
70ns Typical Response from
Current-Sense to Gate Drive Output
1.5% Tolerance Voltage Reference
Same Pinout as UC3842 and
UC3842A
DESCRIPTION
The UCC1800/1/2/3/4/5 family of high-speed, low-power integrated cir-
cuits contain all of the control and drive components required for off-line
and DC-to-DC fixed frequency current-mode switching power supplies
with minimal parts count.
These devices have the same pin configuration as the UC1842/3/4/5
family, and also offer the added features of internal full-cycle soft start
and internal leading-edge blanking of the current-sense input.
The UCC1800/1/2/3/4/5 family offers a variety of package options, tem-
perature range options, choice of maximum duty cycle, and choice of
critical voltage levels. Lower reference parts such as the UCC1803 and
UCC1805 fit best into battery operated systems, while the higher refer-
ence and the higher UVLO hysteresis of the UCC1802 and UCC1804
make these ideal choices for use in off-line power supplies.
The UCC180x series is specified for operation from –55
o
C to +125
o
C,
the UCC280x series is specified for operation from –40
o
C to +85
o
C, and
the UCC380x series is specified for operation from 0
o
C to +70
o
C.
Low-Power BiCMOS Current-Mode PWM
Part Number
UCCx800
UCCx801
UCCx802
UCCx803
UCCx804
UCCx805
Maximum Duty Cycle
100%
50%
100%
100%
50%
50%
Reference Voltage
5V
5V
5V
4V
5V
4V
Turn-On Threshold
7.2V
9.4V
12.5V
4.1V
12.5V
4.1V
Turn-Off Threshold
6.9V
7.4V
8.3V
3.6V
8.3V
3.6V
application
INFO
available
BLOCK DIAGRAM
UDG92009-3
相關PDF資料 |
PDF描述 |
|---|---|
| UCC2804J | Low-Power BiCMOS Current-Mode PWM |
| UCC2805J | Low-Power BiCMOS Current-Mode PWM |
| UCC2805PWTR | Low-Power BiCMOS Current-Mode PWM |
| UCC2805PWTRG4 | Low-Power BiCMOS Current-Mode PWM |
| UCC2801PWTRG4 | Low-Power BiCMOS Current-Mode PWM |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| UCC1803L883B | 制造商:Texas Instruments 功能描述:BPULSE WIDTH MODULATORLOW-POWER - Rail/Tube |
| UCC1804 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Low-Power BiCMOS Current-Mode PWM |
| UCC1804J | 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 |
| UCC1804J883B | 制造商:Texas Instruments 功能描述:Current Mode PWM Controller 1A 8-Pin CDIP Tube |
| UCC1804L | 制造商:Texas Instruments 功能描述:CURRENT MODE PWM CNTRLR 1A 20LCCC - Rail/Tube |
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