AS1124

Akros Silicon, inc.

6399 San Ignacio Avenue, Suite 250, San Jose, CA 95119 USA

408.746.9000



www.AkrosSilicon.com

5

 

Table 4– Electrical Characteristics

Description

Min

Typical

Max

Units

Comments

PD Section

Inrush Current Limit

200

mA

Current limit

800

mA

Max. operating current

625

mA

1.25

1.50

Ω

Diode bridge Vf forward

voltage

900

mV

Single diode drop. Total bridge

voltage drop includes 2 diodes.

Reset voltage level

0

2.7

V

Min Signature voltage

2.7

V

Max Signature voltage

10.1

14.5

V

Min Classification voltage

14.5

V

In classification, the AS1124 sinks

current as defined in table 5

Max Classification voltage

20.5

V

Full power activation threshold

42

V

Full power de-activation

threshold

30

36

V

Auxiliary power input voltage

range

42

57

V

Auxiliary power applied between

VAUX and GND. Applying power at

both auxiliary and line inputs is not

recommended. If both sources are

present, the larger voltage will be

used.

DC-DC Controller Section

frequency

325

350

375

kHz

Controller operating frequency

FOSC Temperature Coefficient

0.12

%/C

1.5

4.5

Ω

High side output drive resistance

NDRV ROUT

1.2

3

Ω

Low side output drive resistance

PDRV and NDRV Gate Drive

4.5

6

V

Table 2– Absolute Maximum Ratings

Description

Max Value

Units

High voltage pins (1—VAUX; 2 & 3—CT1 and 2; 4 & 5—SP1 and 2; 6—VDD48I; 18—

VBP; 19—PDRV; 20—VDD48O)

60

Volts

Low voltage pins ( 8—VDD5; 9-RCURR; 10—RCLASS; 12—FB; 13—COMP; 14—CSS;

15—CS; 16—NDRV; 17—VBN, 11-LVMODE)

6

Volts

ESD Rating:

Human body model

2

2

kV

ESD charged device model

500

V

System level (contact/air) at RJ-45

8/15

kV

Temperature

Storage Temperature

165

°C

Junction Temperature

150

°C

Table 3– Normal Operating Conditions

Description

Min

Typical

1

Max

Vin

36V

48V

57V

Operating temperature

range,

-40ºC

+85°C