ACT512

Rev 4, 13-Feb-14

- 3 -

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ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

: Do not exceed these limits to prevent damage to the device. Exposure to absolute maximum rating conditions for long periods.

PARAMETER

VALUE

UNIT

FB, CS, VDET to GND

-0.3 to + 6

V

VDD, GATE to GND

-0.3 to + 28

V

Maximum Power Dissipation (SOT23-6)

0.45

W

Operating Junction Temperature

-40 to 150

˚C

220

˚C/W

Storage Temperature

-55 to 150

˚C

Lead Temperature (Soldering, 10 sec)

300

˚C

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Supply

VDD Turn-On Voltage

11.3

12.3

13.3

V

VDD Turn-Off Voltage

6.7

7.4

8.1

V

VDD Over Voltage Protection

25

V

Start Up Supply Current

8

15

µA

IDD Supply Current

floating

0.6

mA

IDD Supply Current at Standby

FB = 1.3V

0.4

mA

IDD Supply Current at Fault

Fault mode, FB Floating

250

µA

Feedback

FB Pull up Resistor

15

kΩ

CS to FB Gain

3

V/V

VFB at Max Peak Current

V

FB Threshold to Stop Switching

1.32

V

FB Threshold to Start Switching

1.41

V

Output Overload Threshold

4.2

V

OverLoad/Over Voltage Blanking

Time

320

ms