Datasheet
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
V
DD
off ramp T
A
= –40°C to +85°C 50 1,000,000 V/s
V
DD
off time T
A
= –40°C to +85°C, V
DD
≤ 0.4V 20 μs
V
DD
on ramp T
A
= –40°C to +85°C 90 1,000,000 V/s
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