VIPER22ADIP-E Datasheet VIPER22AS-E, VIPER22ASTR-E, VIPER22ADIP-E | P4-P6

Electrical characteristics VIPer22A-E, VIPer22ADIP-E, VIPer22AS-E

4/21 Doc ID 12050 Rev 2

2 Electrical characteristics

T

J

= 25 °C, V

DD

= 18 V, unless otherwise specified

Table 4. Power section

Symbol Parameter Test conditions Min Typ Max Unit

BV

DSS

Drain-source voltage I

D

= 1 mA; V

FB

= 2 V 730 V

I

DSS

OFF state drain

current

V

DS

= 500 V; V

FB

= 2 V;

T

J

= 125 °C

0.1 mA

r

DS(on)

Static drain-source

ON state resistance

I

D

= 0.4 A

I

D

= 0.4 A; T

J

= 100 °C

15 17

31

Ω

t

f

Fall time

I

D

= 0.2 A; V

IN

= 300 V

(1)

(See Figure 9 on page 13)

1. On clamped inductive load

100 ns

t

r

Rise time

I

D

= 0.4 A; V

IN

= 300 V

(1)

(See Figure 9 on page 13)

50 ns

C

OSS

Drain capacitance V

DS

= 25 V 40 pF

Table 5. Supply section

Symbol Parameter Test conditions Min Typ Max Unit

I

DDch

Start-up charging

current

100 V ≤ V

DS

≤ 400 V;

V

DD

= 0 V ...V

DDon

(See Figure 10 on page 13)

-1 mA

I

DDoff

Start-up charging

current in thermal

shutdown

V

DD

= 5 V; V

DS

= 100 V

T

J

> T

SD

- T

HYST

0 mA

I

DD0

Operating supply

current not switching

I

FB

= 2 mA 3 5 mA

I

DD1

Operating supply

current switching

I

FB

= 0.5 mA; I

D

= 50 mA

(1)

1. These test conditions obtained with a resistive load are leading to the maximum conduction time of the

device.

4.5 mA

D

RST

Restart duty-cycle (See Figure 11 on page 13) 16 %

V

DDoff

V

DD

undervoltage

shutdown threshold

(See Figure 10,

Figure 11 on page 13)

7 8 9 V

V

DDon

V

DD

start-up

threshold

(See Figure 10,

Figure 11 on page 13))

13 14.5 16 V

V

DDhyst

V

DD

threshold

hysteresis

(See Figure 10 on page 13) 5.8 6.5 7.2 V

V

DDovp

V

DD

overvoltage

threshold

38 42 46 V

VIPer22A-E, VIPer22ADIP-E, VIPer22AS-E Electrical characteristics

Doc ID 12050 Rev 2 5/21

Table 6. Oscillation section

Symbol Parameter Test conditions Min Typ Max Unit

F

OSC

Oscillator frequency

total variation

V

DD

= V

DDoff

... 35 V;

T

J

= 0 ... 100 °C

54 60 66 kHz

Table 7. PWM comparator section

Symbol Parameter Test conditions Min Typ Max Unit

G

ID

I

FB

to I

D

current gain (See Figure 12 on page 14) 560

I

Dlim

Peak current

limitation

V

FB

= 0 V

(See Figure 12 on page 14)

0.56 0.7 0.84 A

I

FBsd

I

FB

shutdown current (See Figure 12 on page 14) 0.9 mA

R

FB

FB pin input

impedance

I

D

= 0 mA

(See Figure 12 on page 14)

1.2 kΩ

t

d

Current sense delay

to turn-OFF

I

D

= 0.4 A 200 ns

t

b

Blanking time 500 ns

t

ONmin

Minimum turn-ON

time

700 ns

Table 8. Overtemperature section

Symbol Parameter Test conditions Min Typ Max Unit

T

SD

Thermal shutdown

temperature

(See Figure 13 on page 14) 140 170 °C

T

HYST

Thermal shutdown

hysteresis

(See Figure 13 on page 14) 40 °C

Table 9. Typical power capability

(1)

1. Above power capabilities are given under adequate thermal conditions

Mains type SO-8 DIP-8

European (195 - 265 Vac) 12 W 20 W

US / Wide range (85 - 265 Vac) 7 W 12 W

Pin connections and function VIPer22A-E, VIPer22ADIP-E, VIPer22AS-E

6/21 Doc ID 12050 Rev 2

3 Pin connections and function

Figure 2. Pin connection

Figure 3. Current and voltage conventions

Table 10. Pin function

Pin Name Pin function

V

DD

Power supply of the control circuits. Also provides a charging current during start up

thanks to a high voltage current source connected to the drain. For this purpose, an

hysteresis comparator monitors the V

DD

voltage and provides two thresholds:

- V

DDon

: Voltage value (typically 14.5 V) at which the device starts switching and turns

off the start up current source.

- V

DDoff

: Voltage value (typically 8 V) at which the device stops switching and turns on

the start up current source.

SOURCE Power MOSFET source and circuit ground reference.

DRAIN

Power MOSFET drain. Also used by the internal high voltage current source during

start up phase for charging the external V

DD

capacitor.

FB

Feedback input. The useful voltage range extends from 0 V to 1 V, and defines the

peak drain MOSFET current. The current limitation, which corresponds to the

maximum drain current, is obtained for a FB pin shorted to the SOURCE pin.

1

2

3

4

DRAIN

8

7

6

5

DRAIN

1

2

3

4

8

7

6

5

FB

VDD

SOURCE

FB

VDD

SOURCE

SO-8 DIP-8

I

DD

I

D

I

FB

V

DD

V

FB

V

D

FB

VDD DRAIN

SOURCE

CONTROL

VIPer22A

VIPER22ADIP-E

VIPER22ADIP-E

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