Absolute maximum ratings

SEA01

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DocID024452 Rev 1

1

Absolute maximum ratings

Note:

Please note that, during steady state operation, the maximum power that the device can

dissipate is limited by thermal constraints. For this reason is not possible to sink the

maximum current in OUT1 and OUT2 while their voltages are close to their AMR. The

always be lower than 150 °C. Pdiss is the total dissipated power in the device and it can be

Table 1. Absolute maximum ratings

Symbol

Pin

Parameter

Value

Unit

5

Dc supply voltage

-0.3 to 38

V

6, 7

Open-drain voltage

V

3

Analog input

V

6, 7

Max sink current

20 (*)

mA

2

Analog input

V

Data

8

Digital input/output

V

Clock

1

Digital input

V

Table 2. Thermal data

Symbol

Parameter

Value

Unit

Thermal resistance, junction-to-ambient

150 (SO8)

°C/W

Junction temperature operating range

-40 to 150

°C

Tstg

Storage temperature

-55 to 150

Table 3. Pin functions

N.

Name

Function

1Clock

This pin will be externally pulled up to 3.6 V max.

A small internal pull-up is present to prevent false signal detection (the pin is

floating during normal operation).

2Vctrl

midpoint of a resistor divider that senses the output voltage.

3Isense

the positive end of the current sense resistor through a decoupling resistor.

4GND

Ground. Return of the bias current of the device. 0 V reference for all voltages.

The pin should be tied as close to the ground output terminal of the converter as

possible to minimize load current effect on the voltage regulation setpoint.