參數資料
型號: TSC2008IYZGT
廠商: TEXAS INSTRUMENTS INC
元件分類: 消費家電
英文描述: SPECIALTY CONSUMER CIRCUIT, BGA12
封裝: 2 X 1.50 MM, GREEN, DSBGA-12
文件頁數: 24/40頁
文件大?。?/td> 1028K
代理商: TSC2008IYZGT
Power-On Reset
t
DEVICE_READY
1.2Vto3.6V
0.9V
0.3V
0V
V
DD
t
VDD_OFF_RAMP
t
VDD_OFF
t
VDD_ON_RAMP
Temperature( C)
°
V
OffTimeforV
alidPOR(s)
D
-40
-20
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
20
40
60
80
100
RecommendedV
OffTime
forT = 40 Cto+85 C
-
°
DD
A
TypicalV
OffTimeforVariousTemperatures
DD
SBAS406B – JUNE 2008 – REVISED MARCH 2009.......................................................................................................................................................... www.ti.com
During TSC2008 power up, an internal power-on reset (POR) is triggered if the power-supply ramping meets the
timing requirements shown in Figure 37 and listed in Table 9. The recommended and typical VDD off times are
shown in Figure 38. The POR brings the TSC2008 to the default working condition. If the system is not able to
meet the power ramping timing requirements, or if the system is not properly reset (even after a POR), then
including the SureSet reset in the initialization routine is recommended.
Figure 37. Power-On Reset Timing
Table 9. Timing Requirements for Figure 37
PARAMETER
TEST CONDITIONS
MIN
MAX
UNIT
tVDD_OFF_RAMP
TA = –40°C to +85°C
2
kV/s
TA = –40°C to +85°C
1
s
tVDD_OFF
TA = –20°C to +85°C
0.3
s
tVDD_ON_RAMP
TA = –40°C to +85°C
12
kV/s
tDEVICE_READY
TA = –40°C to +85°C
2
ms
Figure 38. VDD Off Time vs Temperature
30
Copyright 2008–2009, Texas Instruments Incorporated
Product Folder Link(s): TSC2008
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