NCV8445_17 datasheet(4/16 Pages) ONSEMI

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NCV8445

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ELECTRICAL CHARACTERISTICS (8

≤ VD ≤ 36 V; −40°C < TJ < 150°C unless otherwise specified)

Rating

Symbol

Conditions

Value

Unit

Min

Typ

Max

Operating Supply Voltage

−

Undervoltage Shutdown

VUV

6.5

Undervoltage Restart

VUV_Rst

6.5

Overvoltage Shutdown

VOV

On Resistance

RON

Iout = 2 A; TJ = 25°C, VD > 8 V

Iout = 2 A, VD > 8 V

Standby Current

Off State, Vin = Vout = 0 V, VD = 13.5 V

On State; Vin = 5 V, VD = 13.5 V, Iout = 0 A

2.0

4.0

Output Leakage Current

Vin = Vout = 0 V

Vin = 0 V, Vout = 3.5 V

Vin = Vout = 0 V, VD = 13.5 V

−12

INPUT CHARACTERISTICS

Input Voltage − Low

Vin_low

1.25

Input Current − Low

Iin_low

Vin = 1.25 V

Input Voltage − High

Vin_high

3.25

Input Current − High

Iin_high

Vin = 3.25 V

Input Hysteresis Voltage

Vhyst

0.25

Input Clamp Voltage

Vin_cl

Iin = 1 mA

Iin = −1 mA

−14

−13

−12

SWITCHING CHARACTERISTICS

Turn−On Delay Time

td_on

to 10% Vout, VD = 13.5 V, RL = 6.5 W

5.0

Turn−Off Delay Time

td_off

to 90% Vout, VD = 13.5 V, RL = 6.5 W

Slew Rate On

dVout / dton

10% to 80% Vout, VD = 13.5 V, RL = 6.5 W

0.1

0.4

0.8

V /

Slew Rate Off

dVout / dtoff

90% to 10% Vout, VD = 13.5 V, RL = 6.5 W

0.1

0.5

0.8

V /

OUTPUT DIODE CHARACTERISTICS (Note 3)

Forward Voltage

Iout = −1.3 A, TJ = 150°C

0.6

STATUS PIN CHARACTERISTICS

Status Output Voltage Low

Vstat_low

Istat = 1.6 mA

0.2

0.5

Status Leakage Current

Istat_leakage

Vstat = 5 V

0.3

2.0

Status Pin Input Capacitance

Cstat

Vstat = 5 V (Note 3)

100

Status Clamp Voltage

Vstat_cl

Istat =1 mA

Istat = −1 mA

−2.2

−1.2

−0.6

PROTECTION FUNCTIONS (Note 4)

Temperature Shutdown

(Note 3)

TSD

150

175

200

°C

Temperature Shutdown

Hysteresis (Note 3)

TSD_hyst

°C

Output Current Limit

Ilim

8 V < VD < 36 V

6 V < VD < 36 V

Status Delay in Overload

(Note 3)

td_stat

Switch Off Output Clamp

Voltage

Vclamp

Iout = 2 A, Vin = 0 V, L = 6 mH

VD −

3. Not subjected to production testing

4. To ensure long term reliability under heavy overload or short circuit conditions, protection and related diagnostic signals must be used

together with a proper hardware/software strategy. If the devices operates under abnormal conditions this hardware/software solutions

must limit the duration and number of activation cycles.

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