VN7140AS datasheet(11/45 Pages) STMICROELECTRONICS

11 / 45 page

7 V < VCC < 18 V; -40°C < Tj < 150°C

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

VSENSE_TC

MultiSense output voltage

proportional to chip

temperature

VSEn = 5 V; VSEL0 = 0 V; VSEL1 = 5 V;

VIN = 0 V; RSENSE = 1 kΩ; Tj = -40°C

2.325

2.41

2.495

VSEn = 5 V; VSEL0 = 0 V; VSEL1 = 5 V;

VIN = 0 V; RSENSE = 1 kΩ; Tj = 25°C

1.985

2.07

2.155

VSEn = 5 V; VSEL0 = 0 V; VSEL1 = 5 V;

VIN = 0 V; RSENSE = 1 kΩ; Tj = 125°C

1.435

1.52

1.605

dVSENSE_TC/dT(1)

Temperature coefficient

Tj = -40°C to 150°C

-5.5

mV/K

Transfer function

VSENSE_TC (T) = VSENSE_TC (T0) + dVSENSE_TC / dT * (T - T0)

VCC supply voltage analog feedback (VN7140AJ only)

VSENSE_VCC

MultiSense output voltage

proportional to VCC supply

voltage

VCC = 13 V; VSEn = 5 V; VSEL0 = 5 V;

VSEL1 = 5 V; VIN = 0 V;

RSENSE = 1 kΩ

3.16

3.23

3.3

Transfer function (3)

VSENSE_VCC = VCC / 4

Fault diagnostic feedback (see Table 10. Truth table)

VSENSEH

MultiSense output voltage in

fault condition

VCC = 13 V; VIN = 0 V; VSEn = 5 V;

VSEL0 = 0 V; VSEL1 = 0 V; IOUT = 0 A;

VOUT = 4 V; RSENSE = 1 kΩ;

6.6

ISENSEH

MultiSense output current in

fault condition

VCC = 13 V; VSENSE = 5 V

MultiSense timings (current sense mode - see Figure 7. MultiSense timings (current sense mode)) (4)

tDSENSE1H

Current sense settling time

from rising edge of SEn

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

RSENSE = 1 kΩ; RL = 13 Ω

µs

tDSENSE1L

Current sense disable delay

time from falling edge of SEn

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

RSENSE = 1 kΩ; RL = 13 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 = 13 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 = 13 Ω

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 = 13 Ω

250

µs

MultiSense timings (chip temperature sense mode - see Figure 8. Multisense timings (chip temperature and VCC sense mode)

(VN7140AJ only) ) (4)

tDSENSE3H

VSENSE_TC settling time from

rising edge of SEn

VSEn = 0 V to 5 V; VSEL0 = 0 V;

VSEL1 = 5 V; RSENSE = 1 kΩ

µs

tDSENSE3L

VSENSE_TC disable delay time

from falling edge of SEn

VSEn = 5 V to 0 V; VSEL0 = 0 V;

VSEL1 = 5 V; RSENSE = 1 kΩ

µs

MultiSense timings (VCC voltage sense mode - see Figure 8. Multisense timings (chip temperature and VCC sense mode)

(VN7140AJ only)) (4)

tDSENSE4H

VSENSE_VCC settling time from

rising edge of SEn

VSEn = 0 V to 5 V; VSEL0 = 5 V;

VSEL1 = 5 V; RSENSE = 1 kΩ

µs

tDSENSE4L

VSENSE_VCC disable delay

time from falling edge of SEn

VSEn = 5 V to 0 V; VSEL0 = 5 V;

VSEL1 = 5 V; RSENSE = 1 kΩ

µs

VN7140AJ, VN7140AS

Main electrical characteristics

DS10830 - Rev 4

page 11/45

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