VND920

Electrical specifications

Doc ID 7767 Rev 6

11/26

RVSENSEH

Analog sense

output

impedance in

overtemperature

condition

VCC = 13 V; Tj > TTSD; output open

400

Ω

tDSENSE

Current sense

delay response

To 90% ISENSE

(1)

500

µs

1.

Current sense signal delay after positive input slope.

Table 10.

Protections(1)

1.

To ensure long term reliability under heavy over-load or short circuit conditions, protection and related

diagnostic signals must be used together with a proper software strategy. If the device operates under

abnormal conditions this software must limit the duration and number of activation cycles.

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

TTSD

Shutdown temperature

150

175

200

°C

TR

Reset temperature

135

°C

Thyst

Thermal hysteresis

7

15

°C

Ilim

Current limitation

VCC = 13 V

304575

A

5V < VCC < 36 V

75

A

Vdemag

Turn-off output clamp

voltage

IOUT = 2 A; VIN =0 V;

L= 6mH

VCC - 41 VCC - 48 VCC - 55

V

VON

Output voltage drop

limitation

IOUT = 1 A;

Tj = -40 °C...150 °C

50

mV

Table 11.

Truth table

Conditions

Input

Output

Sense

Normal operation

L

H

L

H

0

Nominal

Over-temperature

L

H

L

L

0

VSENSEH

Under-voltage

L

H

L

L

0

0

Over-voltage

L

H

L

L

0

0

Short circuit to GND

L

H

H

L

L

L

0

(Tj <TTSD) 0

(Tj >TTSD) VSENSEH

Short circuit to VCC

L

H

H

H

0

< Nominal

Negative output voltage clamp

L

L

0

Table 9.

Current sense (9 V

≤ VCC ≤ 16 V) (continued)

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

Obsolete

Product(s)

- Obsolete

Product(s)