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TL1451

更新时间： 2024-02-28 06:31:15
品牌 Logo 应用领域
德州仪器 - TI /
页数 文件大小 规格书
29页 426K
描述
DUAL PULSE-WIDTH-MODULATION CONTROL CIRCUITS

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TL1451 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Active零件包装代码：SOIC
包装说明：SOP-16针数：16
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：6 weeks
风险等级：5.63Is Samacsys：N
模拟集成电路 - 其他类型：DUAL SWITCHING CONTROLLER控制模式：VOLTAGE-MODE
控制技术：PULSE WIDTH MODULATION最大输入电压：50 V
最小输入电压：3.6 V标称输入电压：6 V
JESD-30 代码：R-PDSO-G16JESD-609代码：e4
长度：10.2 mm湿度敏感等级：1
功能数量：1端子数量：16
最高工作温度：85 °C最低工作温度：-20 °C
最大输出电流：0.021 A最小输出电压：1 V
标称输出电压：2.5 V封装主体材料：PLASTIC/EPOXY
封装代码：SOP封装等效代码：SOP16,.3
封装形状：RECTANGULAR封装形式：SMALL OUTLINE
峰值回流温度（摄氏度）：260认证状态：Not Qualified
座面最大高度：2 mm子类别：Switching Regulator or Controllers
最大供电电流 (Isup)：2.4 mA标称供电电压 (Vsup)：6 V
表面贴装：YES切换器配置：PHASE-SHIFT
最大切换频率：500 kHz技术：BIPOLAR
温度等级：OTHER端子面层：Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式：GULL WING端子节距：1.27 mm
端子位置：DUAL处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：5.3 mmBase Number Matches：1

TL1451 数据手册

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TL1451A  
DUAL PULSE-WIDTH-MODULATION CONTROL CIRCUITS  
SLVS024E – FEBRUARY 1983 – REVISED NOVEMBER 1999  
D, DB, N, NS, PW, OR J PACKAGE  
Complete PWM Power Control Circuitry  
(TOP VIEW)  
Completely Synchronized Operation  
Internal Undervoltage Lockout Protection  
Wide Supply Voltage Range  
REF  
SCP  
2IN+  
2IN–  
2FEEDBACK  
2DTC  
CT  
RT  
1IN+  
1
2
3
4
5
6
7
8
16  
15  
14  
13  
12  
11  
10  
9
Internal Short-Circuit Protection  
Oscillator Frequency . . . 500 kHz Max  
ERROR  
AMPLIFIER 2  
ERROR  
AMPLIFIER 1 1IN–  
1FEEDBACK  
1DTC  
Variable Dead Time Provides Control Over  
Total Range  
2OUT  
1OUT  
GND  
Internal Regulator Provides a Stable 2.5-V  
Reference Supply  
V
CC  
Available in Q-Temp Automotive  
HighRel Automotive Applications  
Configuration Control / Print Support  
Qualification to Automotive Standards  
FK PACKAGE  
(TOP VIEW)  
description  
3
2
1
20 19  
1IN+  
1IN–  
2IN+  
4
5
6
7
8
18  
17  
16  
15  
14  
The TL1451A incorporates on a single monolithic  
chip all the functions required in the construction  
of two pulse-width-modulation (PWM) control  
circuits. Designed primarily for power-supply  
control, the TL1451A contains an on-chip 2.5-V  
regulator, two error amplifiers, an adjustable  
oscillator, two dead-time comparators, undervol-  
tage lockout circuitry, and dual common-emitter  
output transistor circuits.  
2IN–  
NC  
NC  
1FEEDBACK  
IDTC  
2FEEDBACK  
2DTC  
9
10 11 12 13  
The uncommitted output transistors provide  
common-emitter output capability for each  
controller. The internal amplifiers exhibit a common-mode voltage range from 1.04 V to 1.45 V. The dead-time  
control (DTC) comparator has no offset unless externally altered and can provide 0% to 100% dead time. The  
on-chip oscillator can be operated by terminating RT and CT. During low V  
lockout control circuit feature locks the outputs off until the internal circuitry is operational.  
conditions, the undervoltage  
CC  
TheTL1451ACischaracterizedforoperationfrom–20°Cto85°C. TheTL1451AQischaracterizedforoperation  
from –40°C to 125°C. The TL1451AM is characterized for operation from –55°C to 125°C.  
AVAILABLE OPTIONS  
PACKAGED DEVICES  
SMALL  
OUTLINE  
(D)  
SMALL  
SMALL  
OUTLINE  
(NS)  
CHIP  
CARRIER  
(FK)  
CERAMIC  
DIP  
T
A
PLASTIC DIP  
(N)  
TSSOP  
(PW)  
OUTLINE  
†
†
(DB)  
(J)  
–20°C to 85°C  
–40°C to 125°C  
–55°C to 125°C  
—
TL1451AQD  
—
TL1451ACDB  
TL1451ACN  
TL1451ACNS TL1451ACPW  
—
—
—
—
—
—
—
—
—
—
—
—
TL1451AMFK  
TL1451AMJ  
†
The DB and PW packages are only available left-end taped and reeled (add LE suffix, i.e., TL1451ACPWLE).  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
Copyright 1999, Texas Instruments Incorporated  
On products compliant to MIL-PRF-38535, all parameters are tested  
unless otherwise noted. On all other products, production  
processing does not necessarily include testing of all parameters.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of Texas Instruments  
standard warranty. Production processing does not necessarily include  
testing of all parameters.  
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1234567...29

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