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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 / 201 K
品牌: MOTOROLA [ MOTOROLA, INC ]
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Order this document by TL494/D
TL494
SWITCHMODE
Pulse Width
Modulation Control Circuit
The TL494 is a fixed frequency, pulse width modulation control circuit
designed primarily for SWITCHMODE power supply control.
SWITCHMODE
PULSE WIDTH MODULATION
CONTROL CIRCUIT
SEMICONDUCTOR
TECHNICAL DATA
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
D SUFFIX
PLASTIC PACKAGE
CASE 751B
(SO–16)
N SUFFIX
PLASTIC PACKAGE
CASE 648
PIN CONNECTIONS
Noninv
Input 1
Inv
Input 2
Noninv
16 Input
Inv
15 Input
14 Vref
Output
13 Control
12 VCC
Oscillator
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 @ TA
45°C
Thermal Resistance,
Junction–to–Ambient
Operating Junction Temperature
Storage Temperature Range
Operating Ambient Temperature Range
TL494C
TL494I
Derating Ambient Temperature
NOTE:
+
Error 1
Amp
+
2 Error
Amp
VCC
5.0 V
REF
Symbol
VCC
VC1,
VC2
IC1, IC2
VIR
PD
R
θJA
TJ
Tstg
TA
TL494C
42
42
500
TL494I
Unit
V
V
mA
V
mW
°C/W
°C
°C
°C
Compen/PWN
Comp Input 3
Deadtime
Control 4
CT 5
RT 6
0.1 V
11 C2
Q2
Ground 7
10 E2
Q1
–0.3 to +42
1000
80
125
–55 to +125
0 to +70
– 25 to +85
C1 8
9 E1
(Top View)
ORDERING INFORMATION
Device
Operating
Temperature Range
TA = 0° to +70°C
TA = – 25° to +85°C
Package
SO–16
Plastic
Plastic
Rev 1
TA
45
°C
TL494CD
TL494CN
TL494IN
1. Maximum thermal limits must be observed.
©
Motorola, Inc. 1996
MOTOROLA ANALOG IC DEVICE DATA
1