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參數資料
| 型號： | UC495ACJ |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | Very low drop voltage regulators with inhibit |
| 中文描述： | 電壓模式開關電源控制器 |
| 文件頁數： | 1/5頁 |
| 文件大小： | 473K |
| 代理商： | UC495ACJ |
Advanced Regulating Pulse Width Modulators
FEATURES
Dual Uncommitted 40V, 200mA
Output Transistors
1% Accurate 5V Reference
Dual Error Amplifiers
Wide Range, Variable Deadtime
Single-ended or Push-pull
Operation
Under-voltage Lockout With
Hysteresis
Double Pulse Protection
Master or Slave Oscillator
Operation
UC495A: Internal 39V Zener Diode
UC495A: Buffered Steering Control
DESCRIPTION
This entire series of PWM modulators each provide a complete pulse width
modulation system in a single monolithic integrated circuit. These devices in-
clude a 5V reference accurate to
±
1%, two independent amplifiers usable for
both voltage and current sensing, an externally synchronizable oscillator
with its linear ramp generator, and two uncommitted transistor output
switches. These two outputs may be operated either in parallel for single-
ended operation or alternating for push-pull applications with an externally
controlled dead-band. These units are internally protected against double-
pulsing of a single output or from extraneous output signals when the input
supply voltage is below minimum.
The UC495A contains an on-chip 39V zener diode for high-voltage applica-
tions where V
CC
would be greater than 40V, and a buffered output steering
control that overrides the internal control of the pulse steering flip-flop.
The UC494A is packaged in a 16-pin DIP, while the UC495A is packaged in
an 18 pin DIP. The UC494A, UC495A are specified for operation over the full
military temperature range of -55°C to +125°C, while the UC494AC,
UC495AC are designed for industrial applications from 0°C to +70°C.
BLOCK DIAGRAM
UC494A/AC
UC495A/AC
10/93
相關PDF資料 |
PDF描述 |
|---|---|
| UC495AJ | Very low drop voltage regulators with inhibit |
| UC495AN | Very low drop voltage regulators with inhibit |
| UC494AC | Advanced Regulating Pulse Width Modulators |
| UC495 | Advanced Regulating Pulse Width Modulators |
| UC495AC | Advanced Regulating Pulse Width Modulators |
相關代理商/技術參數 |
參數描述 |
|---|---|
| UC495AJ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage-Mode SMPS Controller |
| UC495AN | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage-Mode SMPS Controller |
| UC-4-RT | 功能描述:U-CLIP W/ADH BLACK 1 11/32X1/4" RoHS:是 類別:線纜，導線 - 管理 >> 線夾和夾具 系列:- 標準包裝:100 系列:TC 類型:C-夾 開口尺寸:0.79" L x 0.54" W x 0.67" H（20.1mm x 13.7mm x 17.0mm） 安裝類型:釘子 材質:聚丙烯 顏色:黑 |
| UC4W28 | 制造商:Burndy 功能描述:Parallel Clamp |
| UC-5 | 制造商:Farnell / Pro-Power 功能描述:P CLIP NATURAL 19.4MM PK100 制造商:pro-power 功能描述:P CLIP, NATURAL, 19.4MM, PK100 制造商:pro-power 功能描述:P CLIP, NATURAL, 19.4MM, PK100; Clip Style:P Clip; Length:35mm; Clip Diameter:19.4mm; Mounting Hole Dia:4.6mm; SVHC:No SVHC (18-Jun-2012); Approval Bodies:UL; Cable Diameter Max:19.4mm; Colour:Natural; External Width:12mm; Fastener ;RoHS Compliant: Yes |
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