Pin description – Rainbow Electronics MAX6764 User Manual
Page 9
MAX6754–MAX6764
Low-Power, Single/Dual-Voltage Window
Detectors
_______________________________________________________________________________________
9
Pin Description
PIN
MAX6754/
MAX6755/
MAX6756
MAX6757/
MAX6758/
MAX6759
MAX6760/
MAX6761/
MAX6762
MAX6763/
MAX6764
NAME
FUNCTION
1
1
1
–
Power Voltage Input. V
CC
powers the device. V
CC
is the monitored
voltage.
—
—
—
1
V
CC
Power Input. V
CC
powers the device.
2
2
2
2
GND
Ground
3
3
8
—
MR
Active-Low Manual Reset Input. Drive MR low to assert undervoltage
and reset outputs. The asserted output remains asserted for the
specified propagation delay period after MR goes high. MR is internally
pulled up to V
CC
through a 26k
Ω resistor.
4
—
—
—
RESET/
RESET
Reset Output. The Reset Output asserts when V
CC
is below the
selected UV
TH
threshold or above the selected OV
TH
threshold. Reset
output deasserts after the specified timeout period after V
CC
rises
above the UV
TH
threshold or drops below the OV
TH
threshold.
MAX6754: Active-low push-pull output (RESET).
MAX6755: Active-high push-pull output (RESET).
MAX6756: Active-low open-drain output (RESET).
5
6
4
—
SET
Threshold Window Select Input. SET configures the undervoltage and
overvoltage window range for the internal detectors. Connect SET to
GND for ±5% window, or to V
CC
for ±10% window. Bias SET to V
CC
/2
for a ±15% window.
—
4
6
—
UV/
UV
Undervoltage Output. UV/UV asserts when the monitored
supply/supplies are below the UV
TH
thresholds or MR is low. UV/UV
deasserts after the specified timeout period when the monitored
supply/supplies rise above the UV
TH
thresholds or for the specified
propagation delay after MR goes high.
MAX6757/MAX6760: Active-low push-pull output (UV).
MAX6758/MAX6761: Active-high push-pull output (UV).
MAX6759/MAX6762: Active-low open-drain output (UV).
—
—
3
—
V
CC2
V
CC2
Voltage Input. Input for the second window voltage monitor, and
device output power supply when V
CC2
> V
CC
.
5
5
5
OV
Active-Low Overvoltage Output. OV asserts low when the monitored
supply/supplies are above their overvoltage threshold (OV
TH
). OV goes
high impedance immediately when the monitored supply/supplies drop
below OV
TH
.
There is no timeout delay period for the OV output.
For MAX6763/MAX6764, OV is low when OVIN is above the internal
0.5V threshold. OV is high when OVIN is below the internal 0.5V
threshold.
MAX6757–MAX6762: Active-low open-drain output.
MAX6763: Active-low push-pull output.
MAX6764: Active-low open-drain output.