MAX6389XS21D6-T Maxim Integrated, MAX6389XS21D6-T Datasheet - Page 5

• Manufacturer Part Number: MAX6389XS21D6-T
• Description: Supervisory Circuits
• Manufacturer: Maxim Integrated
• Series: MAX6381, MAX6382, MAX6383, MAX6384, MAX6385, MAX6386, MAX6387, MAX6388, MAX6389, MAX6390r

Specifications of MAX6389XS21D6-T

• Number Of Voltages Monitored: 2
• Monitored Voltage: 1.8 V to 5 V
• Undervoltage Threshold: 2.05 V, Adjustable
• Overvoltage Threshold: 2.15 V, Adjustable
• Output Type: Active Low, Open Drain
• Manual Reset: Not Resettable
• Watchdog: No Watchdog
• Battery Backup Switching: No Backup
• Power-up Reset Delay (typ): 1120 ms
• Supply Voltage - Max: 5.5 V
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Package / Case: SC-70
• Chip Enable Signals: No
• Maximum Power Dissipation: 245 mW
• Minimum Operating Temperature: - 40 C
• Power Fail Detection: No
• Supply Current (typ): 7 uA
• Supply Voltage - Min: 1 V

(MAX6384–
(MAX6381–
(MAX6381/
(MAX6381/
(MAX6384/
(MAX6381–
(MAX6382/
MAX6388)
MAX6390)
MAX6383)
MAX6390)
MAX6390)
(MAX6387/
MAX6389)
MAX6390)
MAX6390)
MAX6385/
MAX6383/
MAX6384/
MAX6386/
MAX6387/
MAX6382/
MAX6385/
MAX6386/
MAX6388/
µDFN
2, 3, 5
2, 5
1
1
3
3
4
6
MAX6381/
MAX6383
—
—
—
3-PIN SC70
2
3
1
MAX6382
—
—
—
—
2
3
1
SC70/µDFN, Single/Dual Low-Voltage,
MAX6384/
MAX6386/
MAX6390
PIN
—
—
—
2
3
4
1
MAX6385
—
—
—
4-PIN SC70
2
3
4
1
Low-Power µP Reset Circuits
MAX6387/
MAX689
—
—
—
2
3
4
1
MAX6388
—
—
—
2
3
4
1
RESET
RESET
RESET
NAME
GND
N.C.
V
MR
IN
CC
Active-High Push-Pull Reset Output.
RESET changes from low to high when
any monitored voltage (V
V
threshold or MR is pulled low. RESET
remains high for the reset timeout
period after monitored voltages exceed
the reset thresholds or MR is released.
Acti ve- Low Op en- D r ai n/P ush- P ul l Reset
Outp ut. RE S E T chang es fr om hi g h to l ow
w hen any m oni tor ed vol tag e ( V
V
or M R i s p ul l ed l ow . RE S E T r em ai ns l ow for
the r eset ti m eout p er i od after the m oni tor ed
vol tag es exceed the r eset thr eshol d s or M R
i s r el eased . O p en- d r ai n r eq ui r es an
exter nal p ul l up r esi stor .
No Connection. Not Internally
connected.
Active-Low Manual Reset Input. Drive
low to force a reset. Reset remains
active as long as MR is low and for the
reset timeout period after MR is
released. Leave unconnected or
connect to V
internal 63kΩ (1.56kΩ for MAX6390)
pullup resistor to V
Auxi l i ar y Reset Inp ut. H i g h- i m p ed ance
i np ut to the auxi l i ar y r eset com p ar ator .
C onnect RE S E T IN to the center p oi nt of
an exter nal r esi stor vol tag e- d i vi d er
netw or k to set the r eset thr eshol d vol tag e.
Reset asser ts w hen ei ther V
IN fal l s b el ow i ts thr eshol d vol tag e.
Supply Voltage for the device and input
for fixed V
Ground
RE S E TIN
RESETIN
) d r op s b el ow the r eset thr eshol d
) drops below the reset
CC
CC
Pin Description
reset threshold monitor.
FUNCTION
if unused. MR has an
CC
.
CC
C C
or
C C
or RE S E T
or
5