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TL1454CPWLE PDF预览

TL1454CPWLE

更新时间： 2024-11-17 22:26:07
品牌 Logo 应用领域
德州仪器 - TI 稳压器开关式稳压器或控制器电源电路开关式控制器脉冲光电二极管
页数 文件大小 规格书
24页 390K
描述
DUAL-CHANNEL PULSE-WIDTH-MODULATION (PWM) CONTROL CIRCUIT

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TL1454CPWLE 技术参数

是否无铅：含铅是否Rohs认证：不符合
生命周期：Obsolete零件包装代码：TSSOP
包装说明：PLASTIC, TSSOP-16针数：16
Reach Compliance Code：not_compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.91
Is 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：20 V最小输入电压：3.6 V
标称输入电压：6 VJESD-30 代码：R-PDSO-G16
长度：5 mm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：1 A
封装主体材料：PLASTIC/EPOXY封装代码：TSSOP
封装等效代码：TSSOP16,.25封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH峰值回流温度（摄氏度）：NOT SPECIFIED
认证状态：Not Qualified座面最大高度：1.2 mm
子类别：Switching Regulator or Controllers最大供电电流 (Isup)：7 mA
表面贴装：YES切换器配置：SINGLE
最大切换频率：2000 kHz技术：BIPOLAR
温度等级：OTHER端子形式：GULL WING
端子节距：0.65 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：4.4 mm
Base Number Matches：1

TL1454CPWLE 数据手册

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TL1454, TL1454Y  
DUAL-CHANNEL PULSE-WIDTH-MODULATION (PWM)  
CONTROL CIRCUIT  
SLVS086B – APRIL 1995 – REVISED NOVEMBER 1997  
D, N OR PW PACKAGE  
(TOP VIEW)  
Two Complete PWM Control Circuits  
Outputs Drive MOSFETs Directly  
Oscillator Frequency . . . 50 kHz to 2 MHz  
3.6-V to 20-V Supply-Voltage Range  
Low Supply Current . . . 3.5 mA Typ  
Adjustable Dead-Time Control, 0% to 100%  
1.25-V Reference  
REF  
CT  
RT  
1
2
3
4
5
6
7
8
16  
15  
14  
SCP  
DTC2  
DTC1  
IN1+  
13 IN2+  
12  
11  
10  
9
IN2–  
IN1–  
COMP2  
COMP1  
GND  
V
CC  
description  
OUT2  
OUT1  
The TL1454 is a dual-channel pulse-width-modu-  
lation (PWM) control circuit, primarily intended for  
low-power, dc/dc converters. Applications include  
LCD displays, backlight inverters, notebook com-  
puters, and other products requiring small, high-frequency, dc/dc converters. Each PWM channel has its own  
error amplifier, PWM comparator, dead-time control comparator, and MOSFET driver. The voltage reference,  
oscillator, undervoltage lockout, and short-circuit protection are common to both channels.  
Channel 1 is configured to drive n-channel MOSFETs in step-up or flyback converters, and channel 2 is  
configured to drive p-channel MOSFETs in step-down or inverting converters. The operating frequency is set  
with an external resistor and an external capacitor, and dead time is continuously adjustable from 0 to 100%  
duty cycle with a resistive divider network. Soft start can be implemented by adding a capacitor to the dead-time  
control (DTC) network. The error-amplifier common-mode input range includes ground, which allows the  
TL1454 to be used in ground-sensing battery chargers as well as voltage converters.  
AVAILABLE OPTIONS  
†
PACKAGED DEVICES  
CHIP FORM  
(Y)  
T
A
SMALL OUTLINE  
(D)  
PLASTIC DIP  
(N)  
TSSOP  
(PW)  
–20°C to 85°C  
–40°C to 85°C  
TL1454CD  
TL1454ID  
TL1454CN  
TL1454IN  
TL1454CPWLE  
—
TL1454Y  
—
†
The D package is available taped and reeled. Add the suffix R to the device name (e.g., TL1454CDR). The  
PW package is available only left-end taped and reeled (indicated by the LE suffix on the device type; e.g.,  
TL1454CPWLE).  
Copyright 1997, Texas Instruments Incorporated  
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  
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443  
1234567...24

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TL1454PW TI

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 		DUAL-CHANNEL PULSE-WIDTH-MODULATION (PWM) CONTROL CIRCUIT
TL1454Y TI

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 		DUAL-CHANNEL PULSE-WIDTH-MODULATION (PWM) CONTROL CIRCUIT
TL1454YD TI

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 		DUAL-CHANNEL PULSE-WIDTH-MODULATION (PWM) CONTROL CIRCUIT
TL1454YN TI

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 		DUAL-CHANNEL PULSE-WIDTH-MODULATION (PWM) CONTROL CIRCUIT

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