HAL115 datasheet(7/9 Pages) MICRONAS

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HAL115

MICRONAS INTERMETALL

–50

100

150

°C

IDD

Typical supply current

versus ambient temperature

VDD = 24 V

VDD = 4.5 V

HAL 115

30 V

VDD

IDD

Typical supply current

versus supply voltage

TA = 0 °C

HAL 115

TA = 25 °C

TA = 100 °C

see note 2

Application Note

Because of inherent reverse voltage protection, no

diode is needed at pin 1 for reverse voltages ranging

from 0 V to –15 V.

For electromagnetic immunity, it is recommended to ap-

ply a 330 pF minimum capacitor between VDD (pin 1)

and Ground (pin 2).

For applications requiring robustness to conducted dis-

turbances (transients), a 220

Ω series resistor to pin 1

and a 4.7 nF capacitor between VDD (pin 1) and Ground

(pin 2) is recommended.

Because of the IDD peak at 4.1 V, the series resistor

should not be greater than 270

Ω.

The series resistor and the capacitor should be placed

as close as possible to the IC.

Ambient Temperature

Due to the internal power dissipation, the temperature

on the silicon chip (junction temperature TJ) is higher

than the temperature outside the package (ambient tem-

perature TA).

TJ = TA + ∆T

At static conditions, the following equations are valid:

– for SOT-89A:

∆T = IDD * VDD * RthJSB

– for TO-92UA:

∆T = IDD * VDD * RthJA

For typical values, use the typical parameters. For worst

case calculation, use the max. parameters for IDD and

Rth, and the max. value for VDD from the application.

Recommended Application Circuit for DC Fans

HAL115

3.3 k

2.2

µ/50 V

2.2

/50 V

VDD

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