MAX708TCSA+ by Analog Devices

+3V Voltage Monitoring, Low-Cost, µP Supervisory Circuits


The MAX706P/R/S/T, MAX706AP/AR/AS/AT, and MAX708R/S/T microprocessor (µP) supervisory circuits reduce the complexity and number of components required to monitor +3V power-supply levels in +3V to +5V µP systems. These devices significantly improve system reliability and accuracy compared to separate ICs or discrete components. The MAX706P/R/S/T and MAX706AP/AR/AS/AT supervisory circuits provide the following four functions: 1) A reset output during power-up, power-down, and brownout conditions. 2) An independent watchdog output that goes low if the watchdog input has not been toggled within 1.6s. 3) A 1.25V threshold detector for power-fail warning, low-battery detection, or for monitoring a power supply other than the main supply. 4) An active-low, manual-reset input. The only difference between the MAX706R/AR, MAX706S/AS, and MAX706T/AT is the reset-threshold voltage levels, which are 2.63V, 2.93V, and 3.08V, respectively. All have active-low reset output signals. The MAX706P/AP are identical to the MAX706R/AR, except the reset output signal is active-high. The watchdog timer function for the MAX706AP/AR/AS/AT disables when the WDI input is left open or connected to a high-impedance state of a low-leakage tri-state output. The MAX708R/S/T provide the same functions as the MAX706R/S/T and MAX706AR/AS/AT except they do not have a watchdog timer. Instead, they provide both active-low RESET and RESET outputs. As with the MAX706, devices with R, S, and T suffixes have reset thresholds of 2.63V, 2.93V, and 3.08V, respectively. These devices are available in 8-pin SO, DIP, and µMAX® packages and are fully specified over the operating temperature range.

Where to Buy

Prices starting from US$5.28

Distributor Stock
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Farnell
from US$8.20
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Chip One Stop
from US$5.28
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element14
from US$6.53
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Newark Electronics
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Features

µMAX Package, Small 8-Pin SO
Precision Supply-Voltage Monitors 2.63V (MAX706P/R, MAX706AP/AR, and MAX708R) 2.93V (MAX706S, MAX706AS, and MAX708S) 3.08V (MAX706T, MAX706AT, and MAX708T)
2.63V (MAX706P/R, MAX706AP/AR, and MAX708R)
2.93V (MAX706S, MAX706AS, and MAX708S)
3.08V (MAX706T, MAX706AT, and MAX708T)
200ms Reset Time Delay
Debounced TTL/CMOS-Compatible Manual Reset Input
100µA Quiescent Current
WDI Disable Feature (MAX706AP/AR/AS/AT)
Watchdog Timer: 1.6s Timeout
Reset Output Signal: Active-High Only (MAX706P, MAX706AP) Active-Low Only (MAX706R/S/T, MAX706AR/AS/AT) Active-High and Active-Low (MAX708R/S/T)
Active-High Only (MAX706P, MAX706AP)
Active-Low Only (MAX706R/S/T, MAX706AR/AS/AT)
Active-High and Active-Low (MAX708R/S/T)
Voltage Monitor for Power-Fail or Low-Battery Warning
8-Pin Surface-Mount Package
Guaranteed active-low RESET Assertion to VCC = 1V

Specifications

Reset Thresh. (V) 2.5 to 3.3
Reset Thresh. Accur. (%) (@ +25°C) 2.5
Reset Out Active HighActive LowPush-Pull
tRESET (min) 85ms to 300ms
Watchdog Feature No Watchdog
Supervisor Features Adjustable Reset InputManual ResetPower Fail Comparator/Low Battery Detect
ICC (µA) (max) 200
Package/Pins PDIP/8SOIC (N)/8UMAX/8
BudgetaryPrice (See Notes) 2.87


MAX708TCSA+ Power Management ICs - PMIC by Analog Devices

SUPERVISOR 4.4VTH ACTIVE HIGH 8SOIC

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

Specifications

Threshold Voltage 3.08V
No. of Supervisors / Monitors 1Monitors
Supply Voltage Min 1V
Supply Voltage Max 5.5V
Reset Type Active-High Active-Low
Digital IC Case SOIC
No. of Pins 8Pins
Delay Time 200ms
Operating Temperature Min 0°C
Operating Temperature Max 70°C
Product Range -
Automotive Qualification Standard -
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jun-2015)
Base Number 708
Operating Temperature Range 0°C to +70°C
Supply Current 65µA
Supply Voltage Range 1V to 5.5V

Alternative Descriptions

MPU SUPERVISOR, 0 TO 70DEG C | Farnell
Mpu Supervisor, 0 To 70Deg C Rohs Compliant: Yes |Analog Devices MAX708TCSA+ | Newark Electronics

Frequently Asked Questions

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Is the MAX708TCSA+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

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Authorised distributors including Chip One Stop, element14, Farnell and Newark Electronics have stock available or on a lead time for MAX708TCSA+ .

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