STC494 Datasheet, PDF (2/8 Pages) Suntac Electronic Corp. – Pulse Width Modulation

STC494
S
Absolute Maximum Ratings
Characteristic
supply voltage
Voltage From Any Pin to Ground
(except pin 8 and pin 11)
Output Collector Voltage
Peak Collector Current
Power Dissipation
Operating Temperature
Storage Temperature
Symbol
V_CC
V_IN
V_C1, V_C2
I_C1, I_C2
P_D
T_opr
T_stg
Ratings
42
V_CC+0.3
42
250
1500
-40 ~ 85
-65 ~ 150
Ta=25qC
Unit
V
V
V
mA
mW
qC
qC
Recommended Operating Condition
Characteristic
Symbol
supply voltage
V_CC
Voltage on Any Pin Except Pin
8 and 11(Referenced to Ground)
V_IN
Output Voltage
V_C1, V_C2
Output Collector Current
I_C1, I_C2
Timing Capacitor
C_t
Timing Capacitor
C_t
Timing Resistor
R_t
Oscillator Frequency
f_OSC
Min.
7
-0.3
-0.3
-
470
-
1.8
1
Max.
40
V_CC+0.3
40
200
-
10
500
300
Unit
V
V
V
mA
PF
༲
༮
KHz
Electrical Characteristics
Reference Section
Characteristic
Symbol
Test Condition
Reference Voltage
Vref Iref = 1.0mA
Line Regulation
V_LINE 7V < Vcc < 40V
Load Regulation
Temperature Coefficient
V_LOAD
-
1mA< I_REF <10mA
0qC < Ta <70qC
Min. Typ. Max.
4.75 5.00 5.25
-
2
25
-
1
15
- 0.01 0.03
Unit
V
mV
mV
%/qC
Oscillator Section
Characteristic
Oscillator Frequency
Oscillator Frequency Change
Over Operating Temperature
Range
Symbol
Test Condition
f_OSC
C_t=0.01 ༲, R_t=12 ༮
ȟ f_SOC C_t=0.01 ༲, R_t=12 ༮
Min. Typ. Max. Unit
-
10
-
༩
-
-
2
%
G
2