1.6Vto3.6V

1.4V

0.3V

0V

V

DD

t

VDD_OFF_RAMP

t

VDD_OFF

t

VDD_ON_RAMP

TSC2017

SBAS472 – DECEMBER 2009

www.ti.com

Power-On Reset

During TSC2017 power-up, an internal POR is automatically implemented. The POR brings the TSC to the

default working condition. The TSC2017 senses the power-up curve and decides whether or not to implement a

POR. Follow the power-on/off slope and interval requirements, as provided in the Electrical Characteristics, in

order to ensure a proper POR of the TSC2017.

Figure 37. Power-On Reset Timing

Table 7. Timing Requirements for Figure 37

PARAMETER

TEST CONDITIONS

MIN

MAX

UNIT

VDD off ramp

TA = –40°C to +85°C

50

1,000,000

V/s

VDD off time

TA = –40°C to +85°C, VDD ≤ 0.4V

20

μs

VDD on ramp

TA = –40°C to +85°C

90

1,000,000

V/s

32

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