MPQ6411―WINDOWED WATCHDOG TIMER, AEC-Q100 QUALIFIED
PRELIMINARY SPECIFICATIONS SUBJECT TO CHANGE
MPQ6411 Rev. 1.1 www.MonolithicPower.com 4
6/16/2017 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2017 MPS. All Rights Reserved.
ELECTRICAL CHARACTERISTICS
VCC = 5V for MPQ6411, VCC = 3.3V for MPQ6411-33, T
J
= - 40C to +125C, unless otherwise
noted.
Parameter Symbol Condition Min Typ Max Units
Power Supply
Timer voltage
R
TIMER
= 51k 0.3 V
Quiescent current I
Q
MPQ6411, R
TIMER
= 100k 16 19
µA
MPQ6411-33, R
TIMER
= 100k 10 14
MPQ6411, R
TIMER
= 51k 25 32
µA
MPQ6411-33, R
TIMER
= 51k 14 18
Power on reset
threshold
V
POR-HIGH
MPQ6411,
WDO goes high with rising VCC
4.4 4.6 4.8
V
MPQ6411-33,
WDO goes high with rising VCC
2.9 3 3.1
V
POR-LOW
MPQ6411,
WDO goes low with falling VCC
4.3 4.5 4.7
V
MPQ6411-33,
WDO goes low with falling VCC
2.8 2.9 3
Timing
Single period T R
TIMER
= 51k -10% 880 +10% µs
Power on delay
t
0
R
TIMER
= 51k 10 cycle
Sync signal monitoring
time
(4)
t
1
R
TIMER
= 51k 450 cycle
Watchdog window close
time (short mode)
(4)
t
2
R
TIMER
= 51k, MODE = low 15 cycle
Watchdog window open
time (short mode)
(4)
t
3
R
TIMER
= 51k, MODE = low 10 cycle
Watchdog window close
time (long mode)
(4)
t
4
R
TIMER
= 51k, MODE = high 1500 cycle
Watchdog window open
time (long mode)
(4)
t
5
R
TIMER
= 51k, MODE = high 1000 cycle
WDO reset pulse
width
(4)
t
6
R
TIMER
= 51k 4 cycle
WDI_OK pulse width 10 5000 μs
Input and Output
WDI logic high
MPQ6411 3.2
V
MPQ6411-33 2.1
WDI logic low
MPQ6411 0.8
V
MPQ6411-33 0.6
MODE logic high
MPQ6411 3.2
V
MPQ6411-33 2.1
MODE logic low
MPQ6411 0.8
V
MPQ6411-33 0.6
