GDTL494 Datasheet, PDF (2/5 Pages) GTM CORPORATION – VOLTAGE MODE PWN CONTROL CIRCUIT

ISSUED DATE :2003/05/26
REVISED DATE :2004/10/05B
Recommended Operating Conditions
Parameter
Symbol
VALUE
Unit
MIN
MAX
Supply Voltage
Vcc
7
40
V
Amplifier Input Voltage
Vi
-0.3
Vcc-2
V
Collector Output Voltage
Vo
40
V
Collector Output Current(each Transistor)
Ic
200
mA
Current into Feedback
If
0.3
mA
Timing Capacitor
CT
0.47
10000
nF
Timing Resistor
RT
1.8
500
k
Oscillator Frequency
fosc
1
300
kHz
Operating Free-Air Temperature
Ta
0
70
к
Electrical Characteristics (Over recommended operating free-air temperature range, Vcc=15V, f=1kHz, Unless otherwise specified)
Parameter
Test Conditions
Min Typ. Max.
Unit
Reference Section
Output Voltage
Io=1mA
4.75
5
5.25
V
Input Regulation
Vcc = 7to 40 V
2
25
mV
Output Regulation
Io=1 to 10mA
1
15
mV
Output Voltage Change with Temperature
TA=MIN to MAX(note2)
0.2
1
%
Short-Circuit Output Current
Vref=0
35
mA
Oscillator Section
Frequency
CT=0.01 f,RT=120k
10
kHz
Standard Deviation of Frequency
All Values of Vcc CT,RT,TA constant
10
%
Frequency Change with Voltage
Vcc=7v to 40v , Ta = 25к
0.1
%
Frequency Change with Temperature
Amplifier Section
Input Offset Voltage
Error
Input Offset Current
Input Bias Current
Common-Mode Input Voltage
Range
Error
CT=0.01 f,RT=12 k , TA=MIN to MAX
12
%
Vo(pin 3)=2.5v
Vo(pin 3)=2.5v
Vo(pin 3)=2.5v
Vcc=7V to 40V
2
10
mV
25
250
nA
0.2
1
A
-0.3 to
Vcc-2
V
2/5