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參數(shù)資料
| 型號： | AZ494DMTR-E1 |
| 廠商： | BCD SEMICONDUCTOR MANUFACTURING LTD |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | PULSE-WIDTH-MODULATION CONTROL CIRCUITS |
| 中文描述： | 0.25 A SWITCHING CONTROLLER, 300 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封裝： | ROHS COMPLIANT, SOIC-16 |
| 文件頁數(shù)： | 1/2頁 |
| 文件大?。?/td> | 59K |
| 代理商： | AZ494DMTR-E1 |
Description
The AZ494B/D is a voltage mode pulse width modulation
switching regulator control circuit designed primarily for
power supply control. The AZ494B/D consists of a refer-
ence voltage circuit, two error amplifiers, an on-chip
adjustable oscillator, a dead-time control (DTC) compara-
tor, a pulse-steering control flip-flop, and an output con-
trol circuit. The precision of voltage reference (V
REF
) is
improved up to
±
1.5% through trimming and this pro-
vides a better output voltage regulation. The AZ494B/D
provides for push-pull or single-ended output operation,
which can be selected through the output control.
Features
·
Stable 4.95V/5V Reference Voltage Trimmed to
±
1.5% Accuracy
Uncommitted Output TR for 200mA Sink or Source
Current
Single-End or Push-Pull Operation Selected by Out-
put Control
Internal Circuitry Prohibits Double Pulse at Either
Output
Complete PWM Control Circuit with Variable Duty
Cycle
On-Chip Oscillator With Master or Slave Operation
·
·
·
·
·
Applications
·
·
·
SMPS
Back Light Inverter
Charger
Jun. 2005
BCD Semiconductor Manufacturing Limited
Product Brief
PULSE-WIDTH-MODULATION CONTROL CIRCUITS AZ494B/D
Parametric Table
Reference Voltage (V)
AZ494B
4.95
AZ494D
5
Reference Voltage Tolerance
1.5%
Frequency Change with Temperature (Max)
1%
Open Loop Voltage Gain (db)
95
Unity-Gain Bandwidth (KHz)
800
Output Saturation Voltage (Common Emitter)
(V)
1.1
Rise Time (ns)
100
Fall Time (ns)
25
Supply Voltage (V)
7 to 36
Package
DIP-16
SOIC-16
Benefits
·
Very competitive price
Additional Available Materials
·
·
·
·
·
·
Samples
Data Sheet
Reliability Report
ESD Report
Application Notes
Demo Board
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AZ494DP | PULSE-WIDTH-MODULATION CONTROL CIRCUITS |
| AZ494DP-E1 | PULSE-WIDTH-MODULATION CONTROL CIRCUITS |
| AZ494CMTR | PULSE-WIDTH-MODULATION CONTROL CIRCUITS |
| AZ494CMTR-E1 | PULSE-WIDTH-MODULATION CONTROL CIRCUITS |
| AZ494CP | PULSE-WIDTH-MODULATION CONTROL CIRCUITS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AZ494DP | 制造商:BCDSEMI 制造商全稱:BCD Semiconductor Manufacturing Limited 功能描述:PULSE-WIDTH-MODULATION CONTROL CIRCUITS |
| AZ494DP-E1 | 制造商:BCDSEMI 制造商全稱:BCD Semiconductor Manufacturing Limited 功能描述:PULSE-WIDTH-MODULATION CONTROL CIRCUITS |
| AZ494M | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:PULSE-WIDTH-MODULATION CONTROL CIRCUITS |
| AZ494P | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:PULSE-WIDTH-MODULATION CONTROL CIRCUITS |
| AZ496MTR-G1 | 功能描述:Converter Offline Half-Bridge Topology 1kHz ~ 100kHz 16-SOIC 制造商:diodes incorporated 系列:- 包裝:帶卷（TR） 零件狀態(tài):有效 輸出隔離:非隔離 內(nèi)部開關(guān):是 電壓 - 擊穿:- 拓?fù)?半橋 電壓 - 啟動:- 電壓 - 電源（Vcc/Vdd）:7 V ~ 36 V 占空比:45% 頻率 - 開關(guān):1kHz ~ 100kHz 功率（W）:- 故障保護(hù):- 控制特性:頻率控制 工作溫度:-40°C ~ 85°C（TA） 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應(yīng)商器件封裝:16-SOIC 安裝類型:表面貼裝 標(biāo)準(zhǔn)包裝:4,000 |
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