VNQ7050AJ datasheet(13/42 Pages) STMICROELECTRONICS

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VNQ7050AJ

Electrical specification

Symbol

Parameter

Test conditions

Min. Typ. Max. Unit

tDSTKON

OFF-state diagnostic delay

time from falling edge of

INPUT (see Figure 6:

"TDSKON")

VSEn = 5 V; ChX ON to OFF

transition;

ChX diagnostic selected:

•

E.g: Ch0

VIN0 = 5 V to 0 V;

VSEL0,1 = 0 V; VOUT0 = 4 V;

IOUT0 = 0 A

100

350

700

µs

tD_OL_V

Settling time for valid OFF-

state open-load diagnostic

indication from rising edge

of SEn

VIN0,1,2,3 = 0 V; VFR = 0 V;

VSEL0,1 = 0 V; VOUT0 = 4 V;

VSEn = 0 V to 5 V

µs

tD_VOL

OFF-state diagnostic delay

time from rising edge of

VOUT

VSEn = 5 V; ChX OFF;

ChX diagnostic selected:

•

E.g: Ch0

VIN0 = 0 V; VSEL0,1 = 0 V;

VOUT0 = 0 V to 4 V

µs

Fault diagnostic feedback (see Table 10: "Truth table")

VSENSEH

Current sense output

voltage in fault condition

VCC = 13 V; RSENSE = 1

kΩ

•

E.g: Ch0 in open load

VIN0 = 0 V; VSEn = 5 V;

VSEL0,1 = 0 V; IOUT0 = 0 A;

VOUT0 = 4 V

6.6

ISENSEH

Current sense output

current in fault condition

VCC = 13 V; VSENSE = 5 V

Current sense timings (current sense mode - see Figure 5: "Current sense timings (current

sense mode)")

tDSENSE1H

Current sense settling time

from rising edge of SEn

VIN = 5 V; VSEn = 0 V to 5 V;

RSENSE = 1

kΩ; RL = 6.5 Ω

µs

tDSENSE1L

Current sense disable

delay time from falling edge

of SEn

VSEn = 5 V to 0 V;

RSENSE = 1

kΩ; RL = 6.5 Ω

µs

tDSENSE2H

Current sense settling time

from rising edge of INPUT

VIN = 0 V to 5 V; VSEn = 5 V;

RSENSE = 1

kΩ; RL = 6.5 Ω

100

250

µs

ΔtDSENSE2H

Current sense settling time

from rising edge of IOUT

(dynamic response to a

step change of IOUT)

VIN = 5 V; VSEn = 5 V;

RSENSE = 1

kΩ;

ISENSE = 90 % of ISENSEMAX;

RL = 6.5

100

µs

tDSENSE2L

Current sense turn-off

delay time from falling edge

of INPUT

VIN = 5 V to 0 V; VSEn = 5 V;

RSENSE = 1

kΩ; RL = 6.5 Ω

250

µs

Notes:

(1)Parameter defined by design. Not subject to production test.

(2)All values refer to VCC = 13 V; Tj = 25°C, unless otherwise specified.

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