AS3685A/AS3685B

Datasheet

www.austriamicrosystems.com/

AS3685

(ptr)

Revision 2.2

3 - 24

5

Characteristics

5.1 Absolute Maximum Ratings

Stresses beyond those listed in Table 1 may cause permanent damage to the device. These are stress ratings

only, and functional operation of the device at these or any other conditions beyond those indicated in Section 5

Electrical Characteristics is not implied.

Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

Table

1 – Absolute Maximum Ratings

Symbol

Parameter

Min

Max

Unit

Note

Maximum Supply Voltage

-0.3

7.0

V

Input Pin Current without causing

latchup

-25

+25

mA

At 25ºC, Norm: Jedec 17

Storage Temperature Range

-55

125

°C

Humidity

5

85

%

Non condensing

Electrostatic Discharge

-1000

1000

V

Norm: MIL 883 E Method 3015

1.14

W

PT

Total Continuous Power Dissipation

1.02

W

16.3

mW/

°C

DFN10 3x3mm

PT Derating Factor

2

14.7

mW/

°C

WL-CSP 2x1.5mm

Junction Temperature

150

°C

Body Temperature during Soldering

260

°C

according to IPC/JEDEC J-

STD-020C

Notes:

1.

Depending on actual PCB layout and PCB used; for peak power dissipation during flashing see

document ‘AS3685 Thermal Measurements’

For 1A flash current see application notes ‘AN3685_1Aflash’ and ‘AN3685_1Aflash_thermal_1v0’.

2.

The PT derating factor changes the total continuous power dissipation, if the ambient temperature

is different to 70

5.2 Operating Conditions

Table

2 – Operating Conditions

Symbol

Parameter

Min

Typ

Max

Unit

Note

VBAT

Battery Supply Voltage

3.0

3.6

5.5

V

Supply voltage range

VBATFUNC

Battery Supply Voltage,

Functionally working

2.6

V

AS3685 functionally working,

but not all parameters fulfilled

0.4

A

Depending on load current

and charge pump mode

Operating Current

2.0

A

Limited lifetime, max 20,000s

Ambient Temperature

-30

25

85

°C

Off mode current

1.0

4.0

μA

EN1 = 0, EN2 = 0;

VBAT<=4.2V