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TL494

更新时间: 2024-02-25 04:25:08
品牌 Logo 应用领域
安森美 - ONSEMI 开关光电二极管
页数 文件大小 规格书
12页 136K
描述
SWITCHMODE PULSE WIDTH MODULATION CONTROL CIRCUIT

TL494 技术参数

生命周期:Obsolete包装说明:DIE,
Reach Compliance Code:unknownECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.64
模拟集成电路 - 其他类型:SWITCHING CONTROLLER控制模式:VOLTAGE-MODE
控制技术:PULSE WIDTH MODULATION最大输入电压:40 V
最小输入电压:7 VJESD-30 代码:X-XUUC-N16
功能数量:1端子数量:16
最高工作温度:70 °C最低工作温度:
最大输出电流:0.25 A封装主体材料:UNSPECIFIED
封装代码:DIE封装形状:UNSPECIFIED
封装形式:UNCASED CHIP认证状态:Not Qualified
最大供电电流 (Isup):15 mA表面贴装:YES
切换器配置:PUSH-PULL最大切换频率:300 kHz
温度等级:COMMERCIAL端子形式:NO LEAD
端子位置:UPPERBase Number Matches:1

TL494 数据手册

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TL494, NCV494  
SWITCHMODE Pulse Width  
Modulation Control Circuit  
The TL494 is a fixed frequency, pulse width modulation control  
circuit designed primarily for SWITCHMODE power supply control.  
Complete Pulse Width Modulation Control Circuitry  
On−Chip Oscillator with Master or Slave Operation  
On−Chip Error Amplifiers  
http://onsemi.com  
On−Chip 5.0 V Reference  
Adjustable Deadtime Control  
MARKING  
DIAGRAMS  
Uncommitted Output Transistors Rated to 500 mA Source or Sink  
Output Control for Push−Pull or Single−Ended Operation  
Undervoltage Lockout  
16  
SO−16  
D SUFFIX  
CASE 751B  
TL494xD  
AWLYWW  
NCV Prefix for Automotive and Other Applications Requiring Site  
16  
and Control Changes  
1
1
MAXIMUM RATINGS (Full operating ambient temperature range applies,  
unless otherwise noted.)  
16  
Rating  
Power Supply Voltage  
Symbol  
Value  
42  
Unit  
V
PDIP−16  
N SUFFIX  
CASE 648  
*
TL494xN  
V
CC  
AWLYYWW  
Collector Output Voltage  
V
C1  
,
42  
V
16  
V
C2  
1
1
Collector Output Current  
(Each transistor) (Note 1)  
I , I  
C1 C2  
500  
mA  
x
A
= B, C or I  
= Assembly Location  
Amplifier Input Voltage Range  
V
−0.3 to +42  
1000  
V
mW  
°C/W  
°C  
IR  
WL, L = Wafer Lot  
YY, Y = Year  
WW, W = Work Week  
Power Dissipation @ T 45°C  
P
D
A
Thermal Resistance, Junction−to−Ambient  
Operating Junction Temperature  
Storage Temperature Range  
R
80  
q
JA  
J
*This marking diagram also applies to NCV494.  
T
125  
T
stg  
−55 to +125  
°C  
ORDERING INFORMATION  
Operating Ambient Temperature Range  
T
A
°C  
TL494B  
TL494C  
TL494I  
−40 to +125  
0 to +70  
40 to +85  
−40 to +125  
Device  
Package  
SO−16  
SO−16  
Shipping  
TL494BD  
48 Units/Rail  
NCV494B  
TL494BDR2  
2500 Tape & Reel  
Derating Ambient Temperature  
T
A
45  
°C  
TL494CD  
SO−16  
SO−16  
48 Units/Rail  
2500 Tape & Reel  
25 Units/Rail  
1. Maximum thermal limits must be observed.  
TL494CDR2  
TL494CN  
PIN CONNECTIONS  
PDIP−16  
PDIP−16  
SO−16  
Noninv  
Input  
Noninv  
Input  
1
2
+
Error  
Amp  
+
Error  
Amp  
16  
15  
1
2
TL494IN  
25 Units/Rail  
Inv  
Input  
Inv  
Input  
V
CC  
NCV494BDR2*  
2500 Tape & Reel  
Compen/PWN  
Comp Input  
5.0 V  
REF  
3
4
5
6
7
8
14  
13  
12  
V
ref  
0.1 V  
†For information on tape and reel specifications,  
including part orientation and tape sizes, please  
refer to our Tape and Reel Packaging Specification  
Brochure, BRD8011/D.  
Deadtime  
Control  
Output  
Contro  
l
C
R
V
CC  
T
Oscillator  
11 C2  
10 E2  
T
*NCV494: T = −40°C, T  
= +125°C.  
low  
high  
Q2  
Guaranteed by design. NCV prefix is for  
automotive and other applications requiring site  
and change control.  
Ground  
C1  
Q1  
9
E1  
(Top View)  
Semiconductor Components Industries, LLC, 2004  
1
Publication Order Number:  
April, 2004 − Rev. 5  
TL494/D  
 

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