DS1238S/T&R Maxim Integrated, DS1238S/T&R Datasheet - Page 6

• Manufacturer Part Number: DS1238S/T&R
• Description: Supervisory Circuits
• Manufacturer: Maxim Integrated
• Series: DS1238r

Specifications of DS1238S/T&R

• Number Of Voltages Monitored: 1
• Monitored Voltage: 5 V
• Undervoltage Threshold: 4.25 V
• Overvoltage Threshold: 4.5 V
• Output Type: Active High, Active Low
• Manual Reset: Resettable
• Watchdog: Watchdog
• Battery Backup Switching: Backup
• Power-up Reset Delay (typ): 150 ms
• Supply Voltage - Max: 5.5 V
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• Package / Case: SOIC-16 Wide
• Chip Enable Signals: Yes
• Minimum Operating Temperature: 0 C
• Power Fail Detection: Yes
• Supply Current (typ): 4000 uA
• Supply Voltage - Min: 4.5 V

NON-MASKABLE INTERRUPT Figure 5
NMI
V
MAXVOLTAGE =
Example 1: 5 Volt Supply, R2 = 10k Ohms,
V
4.8 =
SENSE
SENSE
FROM IN INPUT Figure 6
R1
=
= 4.8 Volts
10k
R1
10k
R2
R2
x 1.27 R1 = 27.8k Ohm
x 1.27
V
1.27
SENSE
x 5.0 = VMAX
6 of 14
Example 2: 12 Volt Supply, R2 = 10k Ohms,
V
9.0 =
V
SENSE
MAX
=
R1
= 9.0 Volts
10k
1.27
9.00
10k
x 5.0 = 35.4 Volts
x 1.27 R1 = 60.9k Ohm
DS1238