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UCC3813D-0 参数 Datasheet PDF下载

UCC3813D-0图片预览
型号: UCC3813D-0
PDF下载: 下载PDF文件 查看货源
内容描述: 低功耗经济型BiCMOS电流模式PWM [Low Power Economy BiCMOS Current Mode PWM]
分类和应用: 稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管信息通信管理
文件页数/大小: 8 页 / 217 K
品牌: TI [ TEXAS INSTRUMENTS ]
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UCC2813-0/-1/-2/-3/-4/-5
UCC3813-0/-1/-2/-3/-4/-5
Low Power Economy BiCMOS Current Mode PWM
FEATURES
100µA Typical Starting Supply Current
500µA 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 UCC3802, UC3842, and
UC3842A
DESCRIPTION
The UCC3813-0/-1/-2/-3/-4/-5 family of high-speed, low-power inte-
grated circuits 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 UC3842/3/4/5
family, and also offer the added features of internal full-cycle soft start
and internal leading-edge blanking of the current-sense input.
The UCC3813-0/-1/-2/-3/-4/-5 family offers a variety of package options,
temperature range options, choice of maximum duty cycle, and choice
of critical voltage levels. Lower reference parts such as the UCC3813-3
and UCC3813-5 fit best into battery operated systems, while the higher
reference and the higher UVLO hysteresis of the UCC3813-2 and
UCC3813-4 make these ideal choices for use in off-line power supplies.
The UCC2813-x series is specified for operation from –40°C to +85°C
and the UCC3813-x series is specified for operation from 0°C to +70°C.
ORDERING INFORMATION
Part Number
UCCx813-0
UCCx813-1
UCCx813-2
UCCx813-3
UCCx813-4
UCCx813-5
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
BLOCK DIAGRAM
UDG-96134
04/99