
ABSOLUTE MAXIMUMRATINGS
Symbol Parameter Value Unit
VSSupply Voltage (pin 2) 50 V
VFFlyback Supply Voltage 100 V
VF-V
SDifference between Flyback Supply Voltageand Supply Voltage 50 V
V1,V
7Amplifier Input Voltage + VS
IOOutput Peak Current Non-repetitive, t = 2ms
f = 50 or 60Hz, t ≤10µs
f = 50 or 60Hz, t > 10µs
2
2
1.8
A
I3Pin 3 Peak Flyback Current at f = 50 or 60Hz, tfly ≤1.5ms 1.8 A
Ptot TotalPower Dissipation at TC=70
oC20W
Tstg Storage Temperature - 40, + 150 oC
TjJunction Temperature 0, +150 oC
8179F-01.TBL
THERMAL DATA
Symbol Parameter Value Unit
Rth (j-c) Junction-case Thermal Resistance Max. 3 oC/W
8179F-02.TBL
ELECTRICAL CHARACTERISTICS
(V7=2.2V, VS=42V, TA=25oC, unlessotherwisespecified)
(refer to the testcircuits - see Figure 1 nextpage)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
VSOperating Supply Voltage Range 10 42 V
I2Pin 2 Quiescent Current I3=0 I
5= 0 10 20 mA
I6Pin 6 Quiescent Current I3=0 I
5= 0 20 40 mA
I1Amplifier Bias Current V1= 1V - 0.2 - 1 µA
V5Quiescent Output Voltage VS= 42V Ra= 3.9kΩ
VS= 35V Ra= 5.6kΩ23.4
17 24.2
17.8 25
18.5
V
V5L Output Saturation Voltage to GND I5= 1A 1.2 1.5 V
V5H Output Saturation Voltage to Supply - I5= 1A 2.2 2.6 V
VD5 - 6 Diode Forward Voltagebetween Pins 5-6 ID= 1A 1.5 3 V
VD3 - 6 Diode Forward Voltagebetween Pins 3-6 ID= 1A 1.5 3 V
R1Input Resistance 200 kΩ
TjJunction Temperature for Thermal
Shutdown 140 oC
8179F-03.TBL
TDA8179FS
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