VPS2535H datasheet(12/30 Pages) STMICROELECTRONICS

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Electrical specifications

VPS2535H

12/30

DocID028862 Rev 1

Table 9. Current sense (8 V < VCC <36 V)

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

IOUT/ISENSE

IOUT = 1 A; VSENSE =2 V;

Tj = -40 °C to 150 °C

Tj = 25 °C to 150 °C

1952

2080

2960

4150

3840

dK1/K1

(1)

Parameter guaranteed by design; it is not tested.

Current sense ratio drift

IOUT = 1 A; VSENSE =2 V;

Tj = -40 °C to 150 °C

-15

IOUT/ISENSE

IOUT = 3 A; VSENSE =4 V;

Tj =-40 °C to 150°C

Tj =25°C to 150 °C

2490

2585

2930

3440

3265

dK2/K2

(1)

Current sense ratio drift

IOUT = 3 A; VSENSE =4 V;

Tj = -40 °C to 150 °C

-10

+10

IOUT/ISENSE

IOUT =12A; VSENSE =4 V;

Tj =-40 °C to 150°C

Tj =25°C to 150 °C

2770

2755

2900

3125

3045

dK3/K3

(1)

Current sense ratio drift

IOUT =12A; VSENSE =4 V;

Tj = -40 °C to 150 °C

-5

ISENSE0

Analog sense leakage

current

IOUT = 0 A; VSENSE =0 V;

VIN =0 V;

Tj =-40 °C to 150°C

µA

IOUT = 0 A; VSENSE =0 V;

VIN =5 V;

Tj =-40 °C to 150°C

µA

VSENSE

Max analog sense output

voltage

IOUT =12A; RSENSE =3.9 kΩ

VSENSEH

Analog sense output

voltage in fault

condition(2)

Fault condition includes: power limitation, overtemperature and open load in off-state condition.

VCC =24V; RSENSE =3.9 kΩ

7.5

8.5

9.5

ISENSEH

Analog sense output

current in fault condition

(2)

VCC =24V; VSENSE =5 V

4.9

tDSENSE2H

Delay response time

from rising edge of

INPUT pins

VSENSE <4 V;

0.2 A < IOUT <12A;

ISENSE =90% of ISENSE max;

(see Figure 6)

200

400

µs

ΔtDSENSE2H

Delay response time

between rising edge of

output current and rising

edge of current sense

VSENSE <4 V;

ISENSE = 90 % of ISENSEMAX;

IOUT =90% of IOUTMAX;

IOUTMAX = 3 A (see Figure 10)

250

µs

tDSENSE2L

Delay response time

from falling edge of

INPUT pins

VSENSE <4 V;

0.2 A < IOUT <12 A;

ISENSE =10% of ISENSE max;

(see Figure 6)

520

µs

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