UC3526DW Datasheet

IC型號(hào)：
UC3526DW
PDF描述：
Voltage-Mode SMPS Controller
文件大?。?/label>
618.59KB
PDF頁(yè)數(shù)：
8頁(yè)
芯片廠(chǎng)家：
ETC

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UC1526

UC2526

UC3526

Regulating Pulse Width Modulator

FEATURES

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8 To 35V Operation

5V Reference Trimmed To

鹵1%

1Hz To 400kHz Oscillator Range

Dual 100mA Source/Sink Outputs

Digital Current Limiting

Double Pulse Suppression

Programmable Deadtime

Under-Voltage Lockout

Single Pulse Metering

Programmable Soft-Start

Wide Current Limit Common Mode Range

TTL/CMOS Compatible Logic Ports

Symmetry Correction Capability

Guaranteed 6 Unit Synchronization

DESCRIPTION

The UC1526 is a high performance monolithic pulse width modulator

circuit designed for fixed-frequency switching regulators and other

power control applications. Included in an 18-pin dual-in-line pack-

age are a temperature compensated voltage reference, sawtooth os-

cillator, error amplifier, pulse width modulator, pulse metering and

setting logic, and two low impedance power drivers. Also included

are protective features such as soft-start and under-voltage lockout,

digital current limiting, double pulse inhibit, a data latch for single

pulse metering, adjustable deadtime, and provision for symmetry cor-

rection inputs. For ease of interface, all digital control ports are TTL

and B-series CMOS compatible. Active LOW logic design allows

wired-OR connections for maximum flexibility. This versatile device

can be used to implement single-ended or push-pull switching regu-

lators of either polarity, both transformerless and transformer cou-

pled. The UC1526 is characterized for operation over the full military

temperature range of -55擄C to +125擄C. The UC2526 is characterized

for operation from -25擄C to +85擄C, and the UC3526 is characterized

for operation from 0擄 to +70擄C.

BLOCK DIAGRAM

6/93

標(biāo)準(zhǔn)包裝
40
類(lèi)別
集成電路 (IC)
家庭
PMIC - 穩(wěn)壓器 - DC DC 切換控制器
系列
-
PWM 型
電壓模式
輸出數(shù)
2
頻率 - 最大
450kHz
占空比
50%
電源電壓
8 V ~ 35 V
降壓
無(wú)
升壓
是
回掃
是
反相
無(wú)
倍增器
無(wú)
除法器
無(wú)
Cuk
無(wú)
隔離
無(wú)
工作溫度
0°C ~ 70°C
封裝/外殼
18-SOIC（0.295"，7.50mm 寬）
包裝
管件
其它名稱(chēng)
296-11221-5

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UC3526DW Datasheet

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