Electrical Characteristics

All test conditions: VCC = 1.67 V to 5.5 V, TA = −40°C to +125°C, unless otherwise noted.

Parameter

Conditions

Min

Typ

Max

Unit

Supply Voltage and Current

VCC

VCC Operating Voltage Range

1.67

5.5

V

ICC

Supply Current

WDI and EN unconnected

(VCC = 5 V)

6

15

μA

VSTART

Watchdog Timer Startup Voltage

2.19

V

VIL

Input Threshold Voltage Low for WDI, EN

0.3×

VCC

V

VIH

Input Threshold Voltage High for WDI, EN

0.7×

VCC

V

VOL

WDO Output Voltage Low

VCC ≥ 1.67 V, ISINK = 1.2 mA

0.3

V

VOH

WDO Output Voltage High (Push-Pull Only)

VCC ≥ 1.67 V, ISOURCE = 500

μA

0.8 ×

VCC

V

tPW_EN

EN Input Pulse Width

1

μs

tGR_EN

EN Glitch Rejection

250

ns

td_EN

EN to WDO Delay

300

ns

RPD_EN

EN Pull-Down Resistance

50

kΩ

WDI Pin

tWD

Watchdog Timeout Period

TPV710NXQ

7

10

14

ms

TPV710NWQ

70

100

140

ms

TPV710NZQ

0.42

0.6

0.84

s

TPV710NYQ

1.12

1.6

2.24

s

TPV710NSQ

2.24

3.2

4.48

s

TPV710NTQ

4.48

6.4

8.96

s

TPV710NV

8.9

12.8

17.9

s

tRP

WDO Pull Low Period when Watchdog

Timeout

TPV710NXQ

4.2

6

8.4

ms

TPV710NWQ

67

96

134

ms

TPV710NZQ

53

75

105

ms

TPV710NYQ, TPV710NSQ,

TPV710NTQ, or TPV710NV

140

200

280

ms

tPW_WD

WDI Pulse Width

50

ns

tGR_WD

WDI Glitch Rejection

20

ns

TPV710

Watchdog Timer Circuit with EN Control

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GA20230701A1