MP6400DJ-01-LF-Z Monolithic Power Systems (MPS), MP6400DJ-01-LF-Z Datasheet - Page 5

• Manufacturer Part Number: MP6400DJ-01-LF-Z
• Description: Supervisory Circuits Low Quiescent Delay Supv Circuit
• Manufacturer: Monolithic Power Systems (MPS)

Specifications of MP6400DJ-01-LF-Z

• Rohs: yes
• Number Of Voltages Monitored: 1
• Monitored Voltage: Adjustable
• Undervoltage Threshold: 0.4 V
• Overvoltage Threshold: Adjustable
• Output Type: Open Collector / Drain
• Manual Reset: Resettable
• Watchdog: No Watchdog
• Battery Backup Switching: No Backup
• Power-up Reset Delay (typ): 380 ms
• Supply Voltage - Max: 6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: TSOT23-6
• Maximum Power Dissipation: 570 mW
• Power Fail Detection: Yes
• Supply Current (typ): 1.6 uA
• Supply Voltage - Min: 1.8 V

PIN FUNCTIONS
DETAIL DESCRIPTION
The MP6400 product family asserts a
signal when either the SENSE pin voltage is
lower than V
low. The MP6400 family can be monitored a fixed
voltage
MP6400DG(J)-01 can monitor any voltage above
0.4V by adjusting the external resistor divider.
After both the manual reset (
voltages exceed their thresholds, the
MP6400 Rev. 0.91
12/16/2009
Pin #
QFN
6
5
4
3
2
1
from
TSOT
Pin #
1
2
3
4
5
6
IT
MP6400 – LOW QUIESCENT CURRENT PROGRAMMABLE-DELAY SUPERVISORY CIRCUIT
or the manual reset (
0.9V
SENSE
C
Name
R E S E T
GND
V
DELAY
M R
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
CC
to
Description
drops below a preset threshold or when the manual reset (
low. The
capacitors. A pull-up resistor bigger than 10k should be connected this pin to
supply line, and the
Ground.
The manual reset (
internally connected to V
Programmable reset delay time pin. When C
resistor between 50kΩ and 200kΩ, a 380ms delay time is selected. When C
floated, the delay time is 24ms. A capacitor bigger than 150pF connected C
GND could be used to get the user’s programmable time from 2.1ms to 10s.
SENSE pin is connected to the monitored system voltage. When the monitored
voltage is below desired threshold,
Supply voltage. A 0.1uF decoupling ceramic capacitor should be put close to this
pin.
R E S E T
5.0V,
M R
is an open drain signal which will be asserted when the SENSE voltage
) and SENSE
M R
R E S E T
while
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) is driven
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delay time is programmable from 2.1ms to 10s by using external
R E S E T
R E S E T
M R
the
R E S E T
) can introduce another logic signal to control the
CC
outputting a higher voltage than V
through a 90kΩ resistor.
output
programmable delay time. Two fixed
times are user-selectable: 380ms delay time by
connecting the C
time by leaving the C
time from 2.1ms to 10s could be gotten by
connecting a capacitor between C
The wide monitor voltage and programmable
reset delay time make MP6400 product family
suitable for a broad array of applications.
R E S E T
remains
is asserted.
DELAY
DELAY
asserted
pin to V
connected to V
DELAY
M R
pin float. Any delay
CC
CC
) pin drops to a logic
, and 24ms delay
is allowable.
for
DELAY
CC
R E S E T
a
and GND.
R E S E T
through a
DELAY
user’s
delay
. It is
DELAY
to
5