MAX6459UTB+T Maxim Integrated Products, MAX6459UTB+T Datasheet - Page 6

• Manufacturer Part Number: MAX6459UTB+T
• Description: IC SUPPLY VOLT MONITR SOT23-6
• Manufacturer: Maxim Integrated Products
• Type: Simple Reset/Power-On Resetr

Specifications of MAX6459UTB+T

• Number Of Voltages Monitored: 1
• Output: Open Drain or Open Collector
• Reset: Active Low
• Reset Timeout: 50 µs Typical
• Voltage - Threshold: Adjustable/Selectable
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: SOT-23-6
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

High-Voltage, Low-Current Voltage Monitors in
SOT Packages
6
MAX6457 MAX6458 MAX6459 MAX6460
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—
—
—
1
2
3
4
5
—
—
—
—
1
2
3
4
5
PIN
—
—
—
1
5
2
3
4
6
—
—
—
1
2
3
4
5
6
CLEAR
NAME
OUTA
OUTB
GND
OUT
V
REF
IN+
IN-
CC
MAX6457: Open-Drain Monitor Output. OUT requires an external pullup
resistor. OUT asserts low for V
when V
when V
MAX6458: Open-Drain Monitor Output. OUT requires an external pullup
resistor. OUT asserts low for V
when V
high after the timeout period (t
drops below V
MAX6460: Open-Drain Monitor Output. OUT requires an external pullup
resistor. OUT asserts low for V
when V
Open-Drain Monitor A Undervoltage Output. OUTA requires an external
pullup resistor. OUTA goes low when V
high when V
1.5V and 4V.
Open-Drain Monitor B Overvoltage Output. OUTB requires an external
pullup resistor. OUTB goes low when V
when V
below 4V.
Ground
Adjustable Undervoltage Monitor Threshold Input. Noninverting input for
MAX6460.
Adjustable Overvoltage Monitor Threshold Input. Inverting input for
MAX6460.
Clear Input. For V
Connect CLEAR to GND to make the latch transparent. CLEAR must be
low when powering up the device. Connect CLEAR to GND when not
used.
Reference. Internal 2.25V reference output. Connect REF to IN+ through
a voltage divider for active-low output. Connect REF to IN- through a
voltage divider for active-high output. REF can source up to 100µA and
sink up to 300nA. Leave REF floating when not used. REF output is
stable with capacitive loads from 0 to 50pF or greater than 1µF.
Supply Voltage
IN+
IN+
IN+
IN+
IN-
drops below V
drops below V
drops below V
exceeds V
drops below V
IN+
TH-
exceeds V
.
IN+
> V
TH+
TH+
TH-
TH-
.
IN-
TH-
TH+
. OUTB also goes low when V
. OUT goes high when V
, drive CLEAR high to latch OUT high.
and goes high after the timeout period (t
or when V
CC
CC
TP
CC
. OUTA also goes low for V
FUNCTION
) when V
between 1.5V and 4V. OUT asserts low
between 1.5V and 4V. OUT asserts low
between 1.5V and 4V. OUT asserts low
IN+
IN-
IN-
IN+
exceeds V
exceeds V
drops below V
exceeds V
Pin Description
IN+
TH+
TH+
TH+
is above V
. OUT goes
TH-
and goes high
CC
CC
and V
between
and goes
drops
IN-
IN-
.
TP
)