MAX6463UR37-T Maxim Integrated, MAX6463UR37-T Datasheet - Page 6

• Manufacturer Part Number: MAX6463UR37-T
• Description: Supervisory Circuits
• Manufacturer: Maxim Integrated
• Series: MAX6461, MAX6462, MAX6463, MAX6464, MAX6465, MAX6466r

Specifications of MAX6463UR37-T

• Number Of Voltages Monitored: 1
• Monitored Voltage: 1.6 V to 5.5 V
• Undervoltage Threshold: 3.645 V
• Overvoltage Threshold: 3.756 V
• Manual Reset: Not Resettable
• Watchdog: No Watchdog
• Supply Voltage - Max: 6 V
• Maximum Operating Temperature: + 125 C
• Package / Case: SOT-23
• Maximum Power Dissipation: 320 mW
• Minimum Operating Temperature: - 40 C
• Supply Current (typ): 3.5 uA
• Supply Voltage - Min: 1 V

The MAX6463 and MAX6466’s active-low, open-drain out-
put versions can be used to interface with a different logic
voltage than V
ture sinks current when OUT is asserted. Connect a
pullup resistor from OUT to any supply from 0 to 6V.
Select a resistor value large enough to allow a valid logic
low (see the Electrical Characteristics) and small enough
to register a logic high while supplying all input current
and leakage paths connected to the OUT pin.
Ultra-Low-Power Voltage Detectors and
µP Supervisory Circuits
Figure 1. Interfacing to Different Logic Voltage Components
6
_______________________________________________________________________________________
Interfacing to Different Logic Voltage
3.6V
Li+
CC
Applications Information
V
, as shown in Figure 1. This output struc-
CC
IN
CONVERTER
MAX6463
MAX6466
DC/DC
OUT
OUT
SUSPEND
Components
V
µ
CC
P
The MAX6461–MAX6466 feature internal hysteresis that
creates two trip points: one for rising supply voltage
and one for falling supply voltage. The hysteresis pre-
vents the output from oscillating (chattering) when V
is near the voltage threshold.
These devices are relatively immune to short-duration
and falling V
Operating Characteristics show the Maximum Transient
Duration vs. Threshold Overdrive graph, for which OUT
is not asserted. The graph shows the maximum pulse
width that a falling V
before the devices are asserted. As the amplitude of
the transient increases, the maximum allowable pulse
width decreases.
When V
put sinking capability is reduced. Therefore, high-
impedance CMOS logic inputs connected to OUT can
drift to undetermined voltages. This presents no prob-
lem in most applications, because most circuitry is
inoperative when V
where OUT must be valid down to ground, add a pull-
down resistor to ground so any stray leakage currents
flow to ground, holding OUT low. Select a resistor large
enough not to load OUT and small enough to pull OUT
to ground. For most applications, 100kΩ does not load
OUT and pulls OUT to ground.
CC
falls below 1V, the MAX6461/MAX6464 out-
Ensuring Valid Output Down to 0V
CC
transients (glitches). The Typical
CC
CC
is below 1V. In applications
transient typically might have
Transients Immunity
Hysteresis
CC