FSL518H, FSL538H, FSL518A, FSL538A

www.onsemi.com

7

Parameter

Unit

Max

Typ

Min

Symbol

Test Conditions

Abnormal Over-Current Protection (AOCP)

(Note 9)

150

ns

Threshold Drain Current for Triggering

AOCP (Note 9)

mA

Number of pulse for AOCP to skip

(Note 9)

2

times

Number of skipped pulses after

7

times

to Trigger Auto-restart Protection (Note 9)

COUNT

3

times

Protections: Line Detection (BI, BO, LOVP)

Brown-out (BO) Threshold Voltage on

LINE−pin

0.80

0.85

0.90

V

Brown-in (BI) Threshold Voltage on

LINE−pin

0.95

1

1.05

V

Hysteresis between BI and BO

BIBO

0.09

0.15

0.21

V

Delay Time for Brown−out (Note 9)

100

ms

Threshold Voltage for Line Over−Voltage

Protection (LOVP)

4.3

4.5

4.7

V

Recovering Level for LOVP

RECOVER

4.2

4.4

4.6

V

Hysteresis Voltage for LOVP

0.05

0.1

0.15

V

Delay Time for LOVP (Note 9)

2

ms

Protections: Thermal Shutdown

Junction Temperature to Trigger Thermal

Shutdown (Note 9)

147

°C

Junction Temperature for Resuming from

Thermal Shutdown (Note 9)

95

°C

Total Device Section

Operating Supply Current

(Control Part in Burst−mode)

0.9

1.2

mA

Operating Supply Current

1.7

2.0

mA

VCC-pin current at startup condition

170

205

mA

Startup Charging Current

(JFET saturation current)

1.2

4

mA

Minimum DRAIN-pin Voltage to Start

Operation (Note 10)

40

V

Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product

performance may not be indicated by the Electrical Characteristics if operated under different conditions.

9. This parameter is not tested in production, but verified by design/characterization.