TLVH431ACDBVT datasheet(11/54 Pages) TI

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5.8 Typical Characteristics (continued)

Operation of the device at these or any other conditions beyond those indicated in the Section 5.3 table are not implied.

SMALL-SIGNAL VOLTAGE GAIN

/PHASE MARGIN

FREQUENCY

10 mF

GND

Output

180 W

6.8 kW

1 k

10 k

100 k

1 M

100

f − Frequency − (Hz)

TEST CIRCUIT FOR VOLTAGE GAIN

AND PHASE MARGIN

−10

0°

36°

72°

108°

144°

180°

4.3 kW

5 V

IK = 10 mA

TA = 25°C

−20

Figure 5-11. Voltage Gain and Phase Margin

Output

R = 18 kΩ

TA = 25°C

18 kΩ

50 Ω

GND

Output

Pulse

Generator

f = 100 kHz

TEST CIRCUIT FOR PULSE RESPONSE 1

PULSE RESPONSE 1

3.5

2.5

1.5

0.5

− 0.5

t − Time − µs

Input

Figure 5-12. Pulse Response 1

Output

R = 1.8 kΩ

TA = 25°C

1.8 kΩ

50 Ω

GND

Output

Pulse

Generator

f = 100 kHz

TEST CIRCUIT FOR PULSE RESPONSE 2

PULSE RESPONSE 2

3.5

2.5

1.5

0.5

− 0.5

t − Time − µs

Input

Figure 5-13. Pulse Response 2

50 W

100 µF

30 kW

Figure 5-14. Phase Margin Test Circuit

Figure 5-15. Phase Margin vs Capacitive Load VKA = VREF (1.25

V), TA= 25°C

Figure 5-16. Phase Margin vs Capacitive Load VKA = 2.50V, TA=

25°C

Figure 5-17. Phase Margin vs Capacitive Load VKA = 5.00V, TA= 25°C

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TLVH431, TLVH431A, TLVH431B, TLVH432, TLVH432A, TLVH432B

SLVS555N – NOVEMBER 2004 – REVISED JUNE 2024

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