MAX691ACWE+ Maxim Integrated Products, MAX691ACWE+ Datasheet - Page 10

• Manufacturer Part Number: MAX691ACWE+
• Description: IC MPU SUPERVISOR CIRCUIT 16SOIC
• Manufacturer: Maxim Integrated Products
• Type: Battery Backup Circuitr

Specifications of MAX691ACWE+

• Number Of Voltages Monitored: 1
• Output: Push-Pull, Push-Pull
• Reset: Active High/Active Low
• Reset Timeout: 140 ms Minimum
• Voltage - Threshold: 4.65V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC (0.300", 7.5mm Width)
• Monitored Voltage: 0 V to 5.5 V
• Undervoltage Threshold: 4.5 V
• Overvoltage Threshold: 4.75 V
• Manual Reset: No
• Watchdog: Yes
• Battery Backup Switching: Yes
• Power-up Reset Delay (typ): 280 ms
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 0 V
• Supply Current (typ): 100 uA
• Maximum Power Dissipation: 762 mW
• Mounting Style: SMD/SMT
• Maximum Operating Temperature: + 70 C
• Chip Enable Signals: Yes
• Minimum Operating Temperature: 0 C
• Output Type: Active High or Active Low or Open Drain
• Power Fail Detection: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Microprocessor Supervisory Circuits
Figure 4. MAX691A/MAX693A/MAX800L/MAX800M Block Diagram
Figure 5. Reset and Chip-Enable Timing
10
______________________________________________________________________________________
* 4.4V FOR THE MAX693A/MAX800M
LOGIC LEVELS SHOWN ARE FROM 0V TO 5V.
OSC SEL
OSC IN
VBATT
CE IN
5.0V
4.0V
5.0V
WDI
V
PFI
5V
5V
0V
5V
0V
0V
0V
CC
13
THRESHOLD
11
1
3
7
8
9
CE OUT
RESET
RESET
RESET
CE IN
V
CC
4.65V*
1.25V
MAX800M
MAX691A
MAX693A
MAX800L
100μs
15μs
5
TIMEBASE FOR
BATT ON
WATCHDOG
TRANSITION
WATCHDOG
RESET AND
DETECTOR
4
GND
WATCHDOG
CHIP-ENABLE
GENERATOR
CONTROL
TIMER
OUTPUT
RESET
100μs
15
6
12
16
14
2
10
LOW LINE
RESET
WDO
PFO
CE OUT
V
RESET
OUT