DS1831BS+ Maxim Integrated Products, DS1831BS+ Datasheet - Page 6

• Manufacturer Part Number: DS1831BS+
• Description: IC MULTIMN 5/3.3V WDOG PB 16SOIC
• Manufacturer: Maxim Integrated Products
• Series: MicroMonitor™r
• Type: Multi-Voltage Supervisorr

Specifications of DS1831BS+

• Number Of Voltages Monitored: 4
• Output: Open Drain or Open Collector
• Reset: Active Low
• Reset Timeout: 10 ms; 100 ms; 1,000 ms Minimum
• Voltage - Threshold: 3.3V, 5V, Adj, Adj
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC (3.9mm Width)
• Monitored Voltage: 3 V, 3.3 V, 5 V
• Undervoltage Threshold: 4.5 V, 2.98 V
• Overvoltage Threshold: 3.15 V, 4.75 V
• Output Type: Active Low, Open Drain
• Manual Reset: Resettable
• Watchdog: No Watchdog
• Battery Backup Switching: No Backup
• Power-up Reset Delay (typ): 2000 ms
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 1 V
• Supply Current (typ): 100 uA
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Power Fail Detection: No
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TIMING DIAGRAM—5V OR 3.3V PUSHBUTTON RESET Figure 5
OPERATION—PUSHBUTTON STATUS
The DS1831B provides a master pushbutton status open drain output. The
status of the most recent reset condition. If the last reset was generated by the master pushbutton input it
would maintain a low condition until cleared by another event (except the master pushbutton) generating
a reset. Once cleared it will remain high until the master pushbutton is pulled low generating a reset
condition. The
valid condition. The value of the pull up resistor is not critical in most cases but must be set low enough
to pull the output to a high state. A common value used is 10kW (see Figure 6).
DS1831B APPLICATION EXAMPLE Figure 6
PBRST
(or PBRST
V
SENSE2
RST
5V
PBST
5V
3.3V
V
(or RST
SENSE1
)
output is open drain and will require a pull-up resistor on the output to maintain a
V
3.3V
5V Supply
IL
t
PBRST
)
PDLY
RST
TOL
TD
GND
IN
IN2
IN1
5V
5V
5V
5V
5V
t
1
2
3
4
5
6
7
8
PB
DS1831B
V
IL
16
15
14
13
12
11
10
9
IN
RST
TOL
TD
PBST
NMI1
NMI2
MPBRST
6 of 14
3.3V
3.3V
3.3V
3.3V
V
t
3.3V Supply
IH
RST
V
CC
V
OH
10 kW
V
PBST
CC
10kW
output indicates the