ABSOLUTE MAXIMUM RATINGS

Symbol

Parameter

Value

Unit

Supply Voltage (Pin 2) (see Note 1)

40

V

Flyback Peak Voltage (Pin 6) (see Note 1)

75

V

Amplifier Input Voltage (Pins 1-7) (see Note 1)

V

Maximum Output Peak Current (see Notes 2 and 3)

2.5

A

Maximum Sink Current (first part of flyback) (t < 1ms)

2.5

A

Maximum Source Current (t < 1ms)

2.5

A

Electrostatic Handling for all pins (see Note 4)

2000

V

Operating Ambient Temperature

- 20, + 75

Storage Temperature

- 40, + 150

Junction Temperature

+150

Notes : 1. Versus Pin 4.

2. The output current can reach 4A peak for t

≤ 10µs (up to 120Hz).

3. Provided SOAR is respected (see Figures 1 and 2).

4. Equivalent to discharging a 100pF capacitor through a 1.5k

Ω series resistor.

THERMAL DATA

Symbol

Parameter

Value

Unit

Junction-case Thermal Resistance

Max.

3

Temperature for Thermal Shutdown

150

Recommended Max. Junction Temperature

120

ELECTRICAL CHARACTERISTICS

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

Operating Supply Voltage Range

10

35

V

Pin 2 Quiescent Current

9

20

mA

Pin 6 Quiescent Current

8

15

30

mA

Max. Peak Output Current

1.5

A

Amplifier Bias Current

- 1

µA

Reference Voltage

2.35

V

1

2

mV/V

Reference Voltage Drift versus Temperature

0.15

mV/

GV

Voltage Gain

80

dB

Output Saturation Voltage to GND (Pin 4)

1

1.7

V

Output Saturation Voltage to Supply (Pin 6)

1.8

2.3

V

Diode Forward Voltage between Pins 5-6

1.8

2.3

V

Diode Forward Voltage between Pins 3-2

1.6

2.2

V

Saturation Voltage on Pin 3

0.4

1

V

Saturation Voltage to Pin 2 (2nd part of flyback)

2.1

2.8

V

TDA8171

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