TDA1771 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
TDA1771 Datasheet PDF : 5 Pages
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ELECTRICAL CHARACTERISTICS (Tamb = 25°C unless otherwise specified)
Symbol
Parameter
Test Conditions Min. Typ.
DC (VS = 24V)
VS
I1
IS
V1
V7
TJS
Operating Supply Voltage Range
Peak-to-peak Operating Current Range
Supply Current
Flyback Voltage
Sawtooh Pedestall Voltage
Junction Temp. for Thermal Shutdown
IY = 2.4App
IY = 2.4App
10
0.4
315
51
1.85
145
APPLICATION CIRCUIT
TDA1771
Max. Unit
30
V
2.5
A
mA
V
V
°C
0.1µF
470µF
+VS
1N4001
9
2
TRIGGER IN
3
VOLTAGE
REGULATOR
RAMP
GENERATOR
FLYBACK
GENERATOR
R3
CLOCK
PULSE
POWER
AMP.
BUFFER
STAGE
4
180kΩ
220kΩ
6
7
47nF
THERMAL
PROTECTION
8
5
100µF
35V
10
1
2.2Ω
0.22µF
330Ω
2.4kΩ
Ry = 9.6Ω
YOKE Ly = 24.6mH
Iy = 1.2App
1.2kΩ
1kΩ
22µF
1500µF
1.2Ω
3/5
1
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