MAX6457UKD0B+T by Analog Devices

High-Voltage, Low-Current Voltage Monitors in SOT Packages

Status: Active
Series: MAX6457
RoHS: Unknown
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The MAX6457–MAX6460 high supply voltage, low-power voltage monitors operate over a 4V to 28V supply voltage range. Each device includes a precision bandgap reference, one or two low-offset voltage comparators, internal threshold hysteresis, power-good or reset timeout options, and one or two high-voltage open-drain outputs. Two external resistors (three for window detection) set the trip threshold voltages. The MAX6457 is a single voltage monitor for undervoltage or overvoltage detection. A logic-based clear input either latches the output for overvoltage applications or allows the device to operate in transparent mode. The MAX6458 includes two comparators (one overvoltage and one undervoltage) for window detection and a single output to indicate if the monitored input is within an adjustable voltage window. The MAX6459 includes dual overvoltage/undervoltage comparators with two independent comparator outputs. Use the MAX6459 as a window comparator with separate undervoltage and overvoltage outputs or as two independent, single voltage monitors. The MAX6460 includes a single comparator and an internal reference, and can also accept an external reference. The inverting and noninverting inputs of the comparator are externally accessible to support positive or negative voltage monitors and to configure the device for active-high or active-low output logic. The MAX6457/MAX6458 offer fixed timing options as a voltage detector with a 50µs typical delay or as a reset circuit with a 90ms minimum reset timeout delay. The monitored input must be above the adjusted trip threshold (or within the adjusted voltage window for the MAX6458) for the selected timeout period before the output changes state. The MAX6459/MAX6460 offer only a fixed 50µs timeout period. Internal threshold hysteresis options (0.5%, 5%, and 8.3% for the MAX6457/MAX6458/MAX6459, and 0.5% for the MAX6460) reduce output chatter in noise-sensitive applications. Each device is available in a small SOT23 package and specified over the extended temperature range of -40°C to +125°C.

Prices starting from US$2.91


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Logo for Newark Electronics Newark Electronics US$2.97
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Logo for element14 element14 US$2.91
1,824
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Features

Wide Supply Voltage Range, 4V to 28V
Internal 2.25V ±2.5% Reference
Low Current (3.5µA, typ at 12V)
Open-Drain n-Channel Output (28V Compliant)
Internal Threshold Hysteresis Options (0.5%, 5%, 8.3%)
Two IN-to-OUT Timeout Period Options (50µs, 150ms)
Internal Undervoltage Lockout
Immune to Short Voltage Transients
Small SOT23 Packages
Few External Components
Fully Specified from -40°C to +125°C
AEC-Q100 Qualified (MAX6459UTA/V+ only)

Specifications

Reset Thresh. (V) 1.2 to 1.81.8 to 2.52.5 to 3.33.3 to 5.5>=5.5
Reset Out Active LowOpen Drain
tRESET (min) 85ms to 300ms<1ms
Watchdog Feature No Watchdog
Supervisor Features High Voltage (>6V)Latched Output
ICC (µA) (max) 12.5
Package/Pins SOT23/5
BudgetaryPrice (See Notes) 1.77


MAX6457UKD0B+T Power Management ICs - PMIC by Analog Devices

MPU SUPERVISOR 28V SOT-23-5

Status: Unknown
Series: -
RoHS: Unknown
View Datasheet Manufacturer Site View Pricing & Stock

Specifications

Threshold Voltage 1.228V
No. of Supervisors / Monitors 1Monitors
Supply Voltage Min 4V
Supply Voltage Max 28V
Reset Type Active-Low Open-Drain
Digital IC Case SOT-23
No. of Pins 5Pins
Delay Time 50µs
Operating Temperature Min -40°C
Operating Temperature Max 125°C
Product Range -
Automotive Qualification Standard -
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

Voltage Monitor, -40 To 125Deg C | Newark Electronics
VOLTAGE MONITOR, -40 TO 125DEG C | element14

Frequently Asked Questions

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Is the MAX6457UKD0B+T RoHS compliant?

This part has not been flagged as RoHS Compliant.

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