6

FN6678.1

July 16, 2009

Slow Mode Timing

AC Electrical Specifications

Over recommended operating conditions unless otherwise specified.

SYMBOL

PARAMETER

MIN

(Note 18)

TYP

(Note 5)

MAX

(Note 18)

UNIT

Time Between Two Separate Push Button Events

2

ms

Debounce Time

15

28

ms

Wiper Change on a Slow Mode

100

250

390

ms

Wiper Change on a Fast Mode

25

50

78

ms

(Note 17)

Time to Enter Shutdown Mode (keep PU and PD LOW)

2

s

Power-Up to Wiper Stable

500

µs

0.2

50

V/ms

NOTES:

the incremental voltage when changing from one tap to an adjacent tap.

11.

for i = 5 to 31 decimal, T = -40°C to +125°C. Max( ) is the maximum value of the wiper

voltage and Min ( ) is the minimum value of the wiper voltage over the temperature range.

12. MI =

hex respectively.

16.

for i = 5 to 31, T = -40°C to +125°C. Max( ) is the maximum value of the resistance and Min ( ) is the

minimum value of the resistance over the temperature range.

17. Limits should be considered typical and are not production tested.

18. Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise specified. Temperature limits established by

characterization and are not production tested.

TC

V

Max V RW

()

i

() Min V RW

()

i

()

–

Max V RW

()

i

() Min V RW

()

i

()

+

[] 2

⁄

----------------------------------------------------------------------------------------------

+165°C

---------------------

×

=

TC

R

Max Ri

() Min Ri

()

–

[]

Max Ri

() Min Ri

()

+

[] 2

⁄

----------------------------------------------------------------

10

6

+165°C

---------------------

×

=

PU

*MI in the AC timing diagram refers to the minimum incremental change in the wiper voltage.

ISL22511