TDA2270 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
TDA2270 Datasheet PDF : 7 Pages
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TDA2270
ABSOLUTE MAXIMUM RATINGS
Symbol
Vs
V7, V8
V2
V15, V16
Io
Io
Io
I2
I2
Ptot
Tstg, Tj
Parameter
Supply Voltage (pin 1)
Flyback Peak Voltage
Voltage at Pin 2
Amplifier Input Voltage
Output Peak Current (non repetitive, t = 2 ms)
Output Peak Current at f = 50 Hz, t ≤ 10 µs
Output Peak Current at f = 50 Hz, t > 10 µs
Pin 2 DC Current at V7 < V1
Pin 2 Peak to Peak Flyback Current at f = 50 Hz, tfly ≤ 1.5 ms
Total Power Dissipation at
Tpins ≤ 90 °C
Tamb = 70 °C
Storage and Junction Temperature
Value
Unit
35
V
60
V
+ Vs
+ Vs, – 0.5
V
2
A
2.2
A
1.2
A
50
mA
2
A
4.3
W
1
W
– 40 to 150
°C
THERMAL DATA
Symbol
Parameter
Rth j–case Thermal Resistance Junction-case
Rth j–amb Thermal Resistance Junction–ambient
* Obtained with the GND pins soldered to printed circuit with minimized copper area.
Max
Max
Value
14
80
Unit
°C/W
°C/W
ELECTRICAL CHARACTERISTICS
(refer to the test circuits, VS = 35 V, Tamb = 25oC unless otherwise specified)
Symbol
I1
I8
I15
I16
V2L
V7
Parameter
Pin 1 Quiescent Current
Pin 8 Quiescent Current
Amplifier Input Bias Current
Amplifier Input Bias Current
Pin 2 Saturation Voltage to GND
Quiescent Output Voltage
V7L Output Saturation Voltage to GND
V7H Output Saturation Voltage to Supply
V9 Reference Voltage
∆V9 Reference Voltage Drift versus Supply
∆VS Voltage
R9 Reference Voltage Output Resistance
Tj
Junction Temperature for Thermal Shut
Down
Test Conditions
I2 = o, I7 = 0, V16 = 3 V
I2 = 0, I7 = 0, V16 = 3 V
V15 = 1 V
V16 = 1 V
I2 = 20 mA
Vs = 35 V, Ra = 39 kΩ
Vs = 15 V, Ra = 13 kΩ
I7 = 0.7 A
– I7 = 0.7 A
I9 = 0
Vs = 15 to 30 V
Min.
Typ.
8
16
– 0.1
– 0.1
1
18
7.5
0.7
1.3
2.2
1
Max. Unit Fig.
16 mA 1a
36 mA 1a
– 1 µA 1a
– 1 µA 1a
V 1c
V 1d
V 1d
1
V 1c
1.8 V 1b
V 1a
2 mV/V 1a
2.1
kΩ
140
°C
2/7
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