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TL494IN 参数 Datasheet PDF下载

TL494IN图片预览
型号: TL494IN
PDF下载: 下载PDF文件 查看货源
内容描述: 开关模式脉宽调制控制电路 [SWITCHMODE PULSE WIDTH MODULATION CONTROL CIRCUIT]
分类和应用: 稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管
文件页数/大小: 12 页 / 136 K
品牌: ONSEMI [ ON SEMICONDUCTOR ]
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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
On−Chip 5.0 V Reference
Adjustable Deadtime Control
Uncommitted Output Transistors Rated to 500 mA Source or Sink
Output Control for Push−Pull or Single−Ended Operation
Undervoltage Lockout
NCV Prefix for Automotive and Other Applications Requiring Site
and Control Changes
http://onsemi.com
MARKING
DIAGRAMS
16
16
1
SO−16
D SUFFIX
CASE 751B
1
TL494xD
AWLYWW
MAXIMUM RATINGS
(Full operating ambient temperature range applies,
unless otherwise noted.)
Rating
Power Supply Voltage
Collector Output Voltage
Collector Output Current
(Each transistor) (Note 1)
Amplifier Input Voltage Range
Power Dissipation @ T
A
45°C
Thermal Resistance, Junction−to−Ambient
Operating Junction Temperature
Storage Temperature Range
Operating Ambient Temperature Range
TL494B
TL494C
TL494I
NCV494B
Derating Ambient Temperature
1. Maximum thermal limits must be observed.
Symbol
V
CC
V
C1
,
V
C2
I
C1
, I
C2
V
IR
P
D
R
qJA
T
J
T
stg
T
A
−40 to +125
0 to +70
−40 to +85
−40 to +125
T
A
45
°C
Value
42
42
500
−0.3 to +42
1000
80
125
−55 to +125
Unit
V
V
16
mA
V
mW
°C/W
°C
°C
°C
Device
TL494BD
TL494BDR2
TL494CD
TL494CDR2
TL494CN
TL494IN
NCV494BDR2*
14 V
ref
Output
13 Contro
l
12 V
CC
11 C2
Q2
16
PDIP−16
N SUFFIX
CASE 648
1
1
x
= B, C or I
A
= Assembly Location
WL, L = Wafer Lot
YY, Y = Year
WW, W = Work Week
*This marking diagram also applies to NCV494.
TL494xN
AWLYYWW
*
ORDERING INFORMATION
Package
SO−16
SO−16
SO−16
SO−16
PDIP−16
PDIP−16
SO−16
Shipping
48 Units/Rail
2500 Tape & Reel
48 Units/Rail
2500 Tape & Reel
25 Units/Rail
25 Units/Rail
2500 Tape & Reel
PIN CONNECTIONS
Noninv
Input 1
Inv
Input 2
Compen/PWN
Comp Input 3
Deadtime
Control 4
C
T
5
Oscillator
+
Error 1
Amp
+
2 Error
Amp
V
CC
0.1 V
5.0 V
REF
Noninv
16 Input
Inv
15 Input
†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.
*NCV494: T
low
= −40°C, T
high
= +125°C.
Guaranteed by design. NCV prefix is for
automotive and other applications requiring site
and change control.
R
T
6
Ground 7
C1 8
Q1
10 E2
9 E1
(Top View)
©
Semiconductor Components Industries, LLC, 2004
1
April, 2004 − Rev. 5
Publication Order Number:
TL494/D