VIPER28HN datasheet(6/32 Pages) STMICROELECTRONICS

Part #	VIPER28HN

Description	Off-line high voltage converters

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

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Electrical data

VIPER28

6/32

Doc ID 15028 Rev 5

4.3

Electrical characteristics

(TJ = -25 to 125 °C, VDD = 14 V

(a); unless otherwise specified)

a.

Adjust VDD above VDDon start-up threshold before setting to 14 V

Table 6.

Power section

Symbol

Parameter

Test condition

Min Typ Max Unit

VBVDSS Break-down voltage

IDRAIN = 1 mA, VFB = GND, TJ = 25 °C

800

V

IOFF

OFF state drain current

VDRAIN = max rating,VFB = GND, TJ = 25°C

60

μA

RDS(on)

Drain-source on state

resistance

IDRAIN = 0.4 A, VFB = 3 V, VEPT = GND, TJ = 25 °C

7

Ω

IDRAIN = 0.4 A, VFB = 3 V, VEPT = GND, TJ = 125 °C

14

Ω

COSS

Effective (energy related)

output capacitance

VDRAIN = 0 to 640 V, TJ = 25°C

40

pF

Table 7.

Supply section

Symbol

Parameter

Test condition

Min

Typ

Max

Unit

Voltage

VDRAIN_START Drain-source start voltage

60

80

100

V

IDDch

Start up charging current

VDRAIN = 120 V, VEPT = GND,

VFB = GND, VDD = 4 V

-2

-3

-4

mA

VDRAIN = 120 V, VEPT = GND,

VFB = GND, VDD = 4 V after fault

-0.4

-0.6

-0.8

mA

VDD

Operating voltage range

After turn-on

8.5

23.5

V

VDDclamp

VDD clamp voltage

IDD = 20 mA

23.5

V

VDDon

VDD start up threshold

VDRAIN = 120 V, VEPT = GND,

VFB = GND

13

14

15

V

VDDoff

VDD under voltage shutdown

threshold

7.588.5

V

VDD(RESTART) VDD restart voltage threshold

VDRAIN = 120 V, VEPT = GND,

VFB = GND

44.5

5

V

Current

IDD0

Operating supply current, not

switching

VFB = GND, FSW = 0 kHz

VEPT = GND, VDD = 10 V

0.9

mA

IDD1

Operating supply current,

switching

VDRAIN = 120 V, FSW = 60 kHz

2.5

mA

VDRAIN = 120 V,FSW = 115 kHz

3.5

mA

IDD_FAULT

Operating supply current, with

protection tripping

VDD = 10 V

400

uA

IDD_OFF

Operating supply current with

VDD < VDD_OFF

VDD = 7 V

270

uA

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