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TPS3705-30D Datasheet(PDF) 8 Page - Texas Instruments

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Part # TPS3705-30D
Description  PROCESSOR SUPERVISORY CIRCUITS WITH POWER-FAIL
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TPS3705-30D Datasheet(HTML) 8 Page - Texas Instruments

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TPS3705xx
TPS3707xx
PROCESSOR SUPERVISORY CIRCUITS WITH POWERFAIL
SLVS184C − NOVEMBER 1998 − REVISED DECEMBER 2005
8
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
timing requirements at RL = 1 MΩ, CL = 50 pF, TA = 25°C
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
at VDD
VDD = VIT+ + 0.2 V,
VDD = VIT−−0.2 V
6
µs
tw
Pulse width
at MR
VDD ≥ VIT++ 0.2 V,
VIL = 0.3 × VDD,
VIH = 0.7 × VDD
100
ns
tw
Pulse width
at WDI
VDD ≥ VIT++ 0.2 V,
VIL = 0.3 × VDD,
VIH = 0.7 × VDD
100
ns
switching characteristics at RL = 1 MΩ, CL = 50 pF, TA = 25°C
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
tt(out) Watchdog time out
VDD ≥ VIT+ + 0.2 V,
See timing diagram
1.1
1.6
2.3
s
td
Delay time
VDD > VIT+ + 0.2 V,
See timing diagram
140
200
280
ms
tPHL
Propagation (delay) time, high-to-low-level
output
MR to RESET delay
VDD ≥ VIT+ + 0.2 V,
VIL = 0.3 × VDD
50
250
ns
tPLH
Propagation (delay) time, low-to-high-level
output
MR to RESET delay
(TPS3707−xx only)
DD
IT+
VIL = 0.3 × VDD
VIH = 0.7 × VDD
50
250
ns
tPHL
Propagation (delay) time, high-to-low-level
output
VDD to RESET delay
3
5
s
tPLH
Propagation (delay) time, low-to-high-level
output
VDD to RESET delay
(TPS3707-xx only)
3
5
µs
tPHL
Propagation (delay) time, high-to-low-level
output
PFI to PFO delay
VDD = 2 V to 6 V
0.5
1
s
tPLH
Propagation (delay) time, low-to-high-level
output
PFI to PFO delay
VDD = 2 V to 6 V
0.5
1
µs


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