NCP4326DR2

P1-P3 P4-P6 P7-P9 P10-P12 P13-P15 P16-P18 P19-P21 P22-P24 P25-P27 P28-P30

NCP4326

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13

0.60

0.70

0.80

0.90

1.00

Figure 16. Enable Soft−Start Mode or Disable

Driver Mode vs. Temperature

TEMPERATURE (°C)

V

ENx−TH1

(V)

Figure 17. Max Voltage on ENx Pin Ending

Soft−Start and Enable the Regulation Mode

vs. Temperature

Figure 18. Voltage on ENx Pin with an

External Current Sink @ 500 mA vs.

Temperature

Figure 19. Soft−Start Current Source on

Enable Pin vs. V

EN

Figure 20. Soft−Start Current Source on Enable

Pin vs. V

CC

V

CC

(V)

I

ENx

(



A)

130

140

150

160

170

180

Figure 21. Turn ON and OFF Propagation Delay

in Soft−Start Mode vs. Temperature

400

600

TEMPERATURE (°C)

T

SS

(ns)

450

500

550

EN1

0 20 40 60 100 12080

0 20 40 60 100 12

0

80

579 11 1513

4.5

4.6

4.7

4.8

4.9

TEMPERATURE (°C)

V

ENx−max2

(V)

0 20 40 60 100 12080

400

−1000

−800

−600

−400

−200

0

V

ENx

(V)

I

ENx

(A)

T

SS_OFF

0123 564

EN2

EN1

EN2

0.65

0.75

0.85

0.95

4.0

4.2

4.4

4.6

4.8

TEMPERATURE (°C)

V

ENx−TH2

(V)

EN1

0 20 40 60 100 12

0

80

EN2

4.1

4.3

4.5

4.7

5.0

5.1

5.2

5.3

5.4

5.5

200

T

SS_ON

I

EN1

I

EN2

190

I

EN1

I

EN2

NCP4326

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14

1.20

1.25

1.30

1.35

1.40

Figure 22. High Level Flux Pin Clamp Voltage

vs. Temperature

TEMPERATURE (°C)

V

flux_H

(V)

Figure 23. Low Level Flux Pin Clamp Voltage

vs. Temperature

Figure 24. Flux Pin Internal Current Source

vs. Flux Voltage

Figure 25. Synchronization Input Voltage

Threshold vs. Temperature

Figure 26. Error Amplifier Internal Voltage

Reference vs. Temperature

TEMPERATURE (°C)

Vref (V)

1.240

1.245

1.250

1.255

1.260

1.265

1.270

Figure 27. Error Amplifier Input Bias Current

vs. Temperature

−60

−50

−30

TEMPERATURE (°C)

INPUT CURRENT BIAS (nA)

−10

−40

−20

0

V

fb_shunt

0 20 40 60 100 12080

0 20 40 60 100 12

0

800 20 40 60 100 12080

−0.09

−0.08

−0.07

−0.06

−0.05

−0.04

−0.03

TEMPERATURE (°C)

V

flux_L

(V)

0 20 40 60 100 12

0

80

−1600

−1200

−800

−400

0

TEMPERATURE (°C)

I

flux

(



A)

−150 −100 −50 0 100 15050

80

50

55

60

65

70

75

TEMPERATURE (°C)

V

sync_th

(mV)

0 20 40 60 100 12

0

80

V

fb1

1.45

1.50

−0.02

−0.01

0.00

100

85

90

95

−1400

−1000

−600

−200

V

fb2

I

ib_shunt

I

ib1

I

ib2

NCP4326

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15

Figure 28. Error Amplifier Shunt Regulator

Output Voltage Swing vs. Temperature

Figure 29. Error Amplifier Shunt Regulator Output

Voltage Swing vs. Output Current (I

sink

)

I

SINK

(mA)

Vol (mV)

600

700

800

900

1000

1100

1200

Figure 30. Minimum Voltage Clamp on Ct Pin vs.

Temperature

1.40

1.45

1.55

1.80

TEMPERATURE (°C)

Vct−min (V)

1.65

1.50

1.60

1.70

0 20 40 60 100 12080

0102030 506

0

40

TEMPERATURE (°C)

0 20 40 60 100 12080

1.75

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

Vol−Shunt (V)

3.8

4.0

4.2

4.4

4.6

Figure 31. Maximum Voltage Clamp on Ct Pin

@ 500 mA vs. Temperature

TEMPERATURE (°C)

Vct−max2 (V)

0 20 40 60 100 1

20

80

3.9

4.1

4.3

4.5

Figure 32. Internal Current Source on Ct Pin

vs. Temperature

450

500

550

600

650

700

TEMPERATURE (°C)

I

Ct

(A)

0 20 40 60 100 12080

Figure 33. Internal Current Source on Ct Pin

vs. V

Ct

−1000

−800

−600

−400

−200

V

Ct

(V)

I

Ct

(A)

0123 54

0

200

400

600

800

P1-P3 P4-P6 P7-P9 P10-P12 P13-P15 P16-P18 P19-P21 P22-P24 P25-P27 P28-P30

NCP4326DR2

Mfr. #:

Manufacturer:

ON Semiconductor

Description:

IC REG SECONDARY CTR 3OUT 16SOIC

Lifecycle:

New from this manufacturer.

Delivery:

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