STEF12 datasheet(6/20 Pages) STMICROELECTRONICS

No de pièce	STEF12

Description	Electronic fuse for 12 V line

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Fabricant	STMICROELECTRONICS [STMicroelectronics]

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Electrical characteristics

STEF12

6/20

Doc ID 019056 Rev 3

4

Electrical characteristics

VCC = 12 V, VEN = 3.3 V, CI = 10 µF, CO = 47 µF, TJ = 25 °C (unless otherwise specified).

Table 6.

Electrical characteristics for STEF12

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

Under/Overvoltage protection

VClamp

Output clamping voltage

VCC = 18 V

13.8

15

16.2

V

VUVLO

Undervoltage lockout

Turn-on, voltage rising

7.7

8.5

9.3

V

VHyst

UVLO hysteresis

0.80

V

Power MOSFET

tdly

Delay time

Enabling of chip to ID = 100 mA

with a 1 A resistive load

350

µs

RDSon

On-resistance

(1)

35

53

70

m

Ω

- 40 °C < TJ < 125 °C

(2)

82

VOFF

Off state output voltage

VCC = 18 V, VGS = 0, RL = infinite

40

100

mV

ID

Continuous current

0.5in2 pad, TA = 25 °C

(1)

3.6

A

Minimum copper, TA = 80 °C

1.7

Current limit

IShort

Short-circuit current limit

RLimit = 22 Ω

3.3

4.4

5.5

A

ILim

Overload current limit

RLimit = 22 Ω

4.4

A

dv/dt circuit

dv/dt

Output voltage ramp time

Enable to VOUT = 11.7 V, No

Cdv/dt

0.5

0.9

2.6

ms

Enable/Fault

VIL

Low level input voltage

Output disabled

0.35

0.58

0.81

V

VI(INT)

Intermediate level input voltage

Thermal fault, output disabled

0.82

1.4

1.95

V

VIH

High level input voltage

Output enabled

1.96

2.64

3.3

V

VI(MAX)

High state maximum voltage

3.4

4.3

5.4

V

IIL

Low level input current (sink)

VEnable = 0 V

-10

-30

µA

II

High level leakage current for

external switch

VEnable = 3.3 V

1

µA

Maximum fan-out for fault signal

Total numbers of chips that can

be connected to this pin for

simultaneous shutdown

3Units

Total device

IBias

Bias current

Device operational

1.5

2

mA

Thermal shutdown

1

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