4

Electrical characteristics

Tj = -25°C to 125°C, VCC = 12 V, CGD = 4.7 nF; unless otherwise specified, typical values refer to Tj = 25°C

Table 4. Electrical characteristics

Symbol

Parameter

Test Condition

Min. Typ. Max. Unit

Supply section

VAUX

VAUX pin operating voltage

185

V

VCC

Operating voltage range

After turn-on

3.7

32

V

VCC_On

Turn-on supply voltage

Voltage rising (1)

4.18 4.3

4.42

V

VCC_SO_On

Turn-on supply voltage for AUX switch

activation

Voltage falling (1)

3.7 3.95 4.15

V

VCC_Off

Turn-off supply voltage

Voltage falling (1)

3.3

3.5

3.7

V

VCC_AGD_en

VCC voltage above which adaptive drive is

enabled

On VCC rising edge (2)

7.4

V

VCC_AGD_dis

VCC voltage below which adaptive drive is

disabled

On VCC falling edge (2)

6.5

V

Iq_run

Current consumption in run mode

After turn-on (excluding SR MOS

gate driving) @ 100 kHz

600

µA

ICC

Operating supply current

@ 300 kHz

17

mA

Iq

Quiescent Current

Low consumption mode operation,

with DVS pin not switching (3), Tj =

-25°C to 85°C

170

225

µA

Ron

VAUX switch resistance

(2)

40

Ω

IDSAT_VAUX

VAUX pin saturation current

125

mA

Drain-source sensing input and synch function

VDS_H

DVS operating voltage

185

V

VTH_A

Cycle comparator threshold

70

100

130

mV

VZCD_OFF_MIN Minimum ZCD comparator threshold

(2)

-20

mV

Tdiode_off

Body diode residual conduction time after turn-

off

230 330

430

ns

TD_On_min

Turn-on delay

55

85

105

ns

Tant_timer

Anticipation time referred to DVS rising edge to

force turn off of SR MOSFET

DVS switching

Low level on DVS pin = -1 V

180 280

325

ns

Ttimer_step

Timer step every 4 switching cycles (in FF

operation)

With 100pF on TON pin, during

switching period increase

56

ns

TON_MAX

Max turn-on duration

45

60

80

µs

Disable pin remote on/off function

VDIS_OFF

Disable threshold

For at least 4 cycle to enter in

disable state (low consumption

mode).

Used also as SYNCH input, it

always forces a SR MOSFET turn

off when pulled high

1.9

2.1

2.3

V

SRK1001

Electrical characteristics

DS13155 - Rev 1

page 6/27