ADP1031ACPZ-2-R7 datasheet(17/38 Pages) AD

17 / 38 page

Data Sheet

ADP1031

Rev. A | Page 17 of 38

CH1 50.0mV

CH2 100mA

1.00µs

A CH3

48.0V

T 50.10%

CH3 20.0V

VOUT1

ISWP

VSWP

Figure 28. Flyback Regulator Continuous Conduction Mode Operation

Showing ISWP, Switch Node Voltage, and Output Ripple, TA = 25°C, VINP = 24 V,

VOUT1 = 24 V, IOUT1 = 50 mA

CH1 10.0V

CH2 2.00V

M4.00ms A CH1

15.4V

11.929ms

CH3 20.0V BW

VOUT1

VINP

VSWP

Figure 29. Flyback Regulator Line Transient Response, VINP = 6 V to 20 V Step,

VOUT1 = 24 V, IOUT1 = 20 mA, TA = 25°C

CH1 1.00V

CH2 200mV

M4.00ms A CH1

6.64V

11.9290ms

CH3 20.0V BW

VINP

VOUT1

VSWP

Figure 30. Flyback Regulator Line Transient Response, VINP = 6 V to 7 V Step,

VOUT1 = 24 V, IOUT1 = 20 mA, TA = 25°C

CH1 5.00V

CH2 10.0V

M1.00ms

A CH1

3.20V

2.01000ms

CH4 20.0V BW

CH3 200mA BW

VOUT1

VEN

ISWP

VSWP

Figure 31. Flyback Regulator Short-Circuit Current Limit During Startup,

VINP = 24 V, VOUT1 = SGND2, TA = 25°C

CH1 20.0mA

CH2 2.00V

M4.00ms A CH1

16.8mA

11.9000ms

CH3 20.0V BW

IOUT1

VOUT1

VSWP

Figure 32. Flyback Regulator Load Transient Response, VINP = 24 V,

VOUT1 = 24 V, IOUT1 = 1 mA to 20 mA Step, TA = 25°C

CH1 50.0mA

CH2 2.00V

M4.00ms A CH1

35.0mA

11.9000ms

CH3 50.0V BW

VOUT1

IOUT1

VSWP

Figure 33. Flyback Regulator Load Transient Response, VINP = 32 V,

VOUT1 = 24 V, IOUT1 = 1 mA to 50 mA Step, TA = 25°C

ADP1031ACPZ-2-R7 Fiches technique(PDF) 17 Page - Analog Devices

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