AN30185A

11

Ver. BEB

Start / Stop control sequence by EN pin under the condition that EN2 pin is fixed to High is as follows.

Note) All values given in the above figure are typical values.

EN

UVLO

RESET

FB1

PCNT

FB2

BUF

30 ms

1.0 V

0.94 ms

3.3 V

3.75 ms

0.47 ms

1.8 V

0.9 V

100

μs

300

μs

150

μs

50

μs

2.81 ms

EN2

4.22 ms

Constant current

discharge (2.5

μA)

DIS

(3.3 V line)

Terminated

with a resistor

Terminated

with a resistor

Terminated

with a resistor

Terminated

with a resistor

OPERATION (Continued)

2. Start / Stop Control Timing Chart

Note) The characteristics listed below are reference values derived from the design of the IC and are not guaranteed.