MAX6709 Maxim, MAX6709 Datasheet - Page 6
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MAX6709
Manufacturer Part Number
MAX6709
Description
Low-Voltage / High-Accuracy / Quad Voltage Monitors in MAX Package
Manufacturer
Maxim
Datasheet
1.MAX6709.pdf
(13 pages)
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Low-Voltage, High-Accuracy, Quad Voltage
Monitors in µMAX Package
6
MAX6709
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10
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1
2
3
4
5
6
7
8
9
PIN
MAX6714
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10
5
1
2
3
4
6
7
8
9
PWRGD4
PWRGD3
PWRGD2
PWRGD1
RESET
NAME
PFO3
PFO2
PFO1
GND
PFI1
PFI2
PFI3
V
IN1
IN2
IN3
IN4
MR
CC
Input Voltage 1. See Selector Guide for monitored voltages.
Input Voltage 2. See Selector Guide for monitored voltages.
Input Voltage 3. See Selector Guide for monitored voltages.
Input Voltage 4. See Selector Guide for monitored voltages.
Ground
Output 4. PWRGD4 asserts low when IN4 falls below its threshold voltage. PWRGD4 is open
drain with a 10µA internal pullup current source to V
Output 3. PWRGD3 asserts low when IN3 falls below its threshold voltage. PWRGD3 is open
drain with a 10µA internal pullup current source to V
Output 2. PWRGD2 asserts low when IN2 falls below its threshold voltage. PWRGD2 is open
drain with a 10µA internal pullup current source to V
Output 1. PWRGD1 asserts low when IN1 falls below its threshold voltage. PWRGD1 is open
drain with a 10µA internal pullup current source to V
Power-Supply Input. Connect V
forces all PWRGD_ outputs low when V
is not a monitored voltage for the MAX6709. For the MAX6714, RESET asserts low when V
drops below its threshold.
Manual Reset Input. Force MR low to assert the RESET output. RESET remains asserted for
the reset timeout period after MR goes high. MR is internally pulled up to V
Power-Fail Input 1. Input to noninverting input of the power-fail comparator. PFI1 is
compared to an internal 0.62V reference. Use an external resistor-divider network to adjust
the monitor threshold.
Power-Fail Input 2. Input to noninverting input of the power-fail comparator. PFI2 is
compared to an internal 0.62V reference. Use an external resistor-divider network to adjust
the monitor threshold.
Power-Fail Input 3. Input to noninverting input of the power-fail comparator. PFI3 is
compared to an internal 0.62V reference. Use an external resistor-divider network to adjust
the monitor threshold.
Power-Fail Output 3. PFO3 is an active-low, open-drain output with a 10µA internal pullup to
V
Power-Fail Output 2. PFO2 is an active-low, open-drain output with a 10µA internal pullup to
V
Power-Fail Output 1. PFO1 is an active-low, open-drain output with a 10µA internal pullup to
V
Reset Output. RESET is an active-low, open-drain output that asserts low when V
below its preset threshold voltage or when a manual reset is initiated. RESET remains low for
the reset timeout period after V
CC
CC
CC
. PFO3 asserts low when PFI3 is below the selected threshold.
. PFO2 asserts low when PFI2 is below the selected threshold.
. PFO1 asserts low when PFI1 is below the selected threshold.
CC
CC
exceeds the selected reset threshold or MR is released.
to a 2.0V to 5.5V supply. An undervoltage lockout circuit
CC
FUNCTION
drops below the minimum operating voltage. V
CC
CC
CC
CC
.
.
.
.
Pin Description
CC
.
CC
drops
CC
CC