MAX805LCSA+ Maxim Integrated Products, MAX805LCSA+ Datasheet - Page 4

• Manufacturer Part Number: MAX805LCSA+
• Description: IC SUPERVISOR MPU 8-SOIC
• Manufacturer: Maxim Integrated Products
• Type: Battery Backup Circuitr

Specifications of MAX805LCSA+

• Number Of Voltages Monitored: 1
• Output: Push-Pull, Totem Pole
• Reset: Active High
• Reset Timeout: 140 ms Minimum
• Voltage - Threshold: 4.65V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Monitored Voltage: 4.65 V
• Undervoltage Threshold: 4.5 V
• Overvoltage Threshold: 4.75 V
• Output Type: Active High, Push-Pull
• Manual Reset: Not Resettable
• Watchdog: Watchdog
• Battery Backup Switching: Backup
• Power-up Reset Delay (typ): 280 ms
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 1.1 V
• Maximum Power Dissipation: 471 mW
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: 0 C
• Power Fail Detection: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Microprocessor Supervisory Circuits
4
__________________________________________Typical Operating Characteristics
RESET
5.00
4.95
4.90
4.85
4.80
4.75
+5V
+5V
V
_______________________________________________________________________________________
CC
0
V
CC
SLOPE = 5Ω
RESET RESPONSE TIME
10
V
RESET
CC
GND
vs. LOAD CURRENT
OUTPUT VOLTAGE
MAX690A
20
2µs/div
I
OUT
RESET
10k
30pF
V
(mA)
RESET
0V
0V
CC
30
V
V
T
T
A
CC
BATT
A
= +25°C
= +25°C
= +5V
40
= +2.8V
RESET OUTPUT VOLTAGE
vs. SUPPLY VOLTAGE
V
BATT
V
GND
RESET
CC
50
0V
MAX805L
500ms/div
+4V
+1.30V
2.80
2.78
2.76
2.74
2.72
2.70
330
+5V
PFO
pF
PFI
0
PFI
+1.25V
SLOPE = 80Ω
POWER-FAIL COMPARATOR
0.2
+5V
+5V
vs. LOAD CURRENT
V
T
RESPONSE TIME
OUTPUT VOLTAGE
30pF
A
CC
PFO
= +25°C
= +5V
+5V
400ns/div
0.4
I
OUT
+5V
V
1k
0V
0V
CC
(mA)
0.6
V
V
T
A
CC
BATT
RESET
= +25°C
GND
V
= 0V
0.8
CC
= +2.8V
RESET RESPONSE TIME
10k
1.0
MAX805L
+1.2V
+0V
2µs/div
330pF
RESET
+1.20V
V
0V
0V
PFO
CC
PFI
0V
PFI
+1.25V
POWER-FAIL COMPARATOR
RESET OUTPUT VOLTAGE
vs. SUPPLY VOLTAGE
V
+4V
+4V
CC
30pF
RESPONSE TIME
+5V
V
MAX690A
T
500ms/div
BATT
A
V
PFO
400ns/div
RESET
= +25°C
CC
GND
= OV
1k
2k
330pF
RESET
V
T
A
CC
= +25°C
= +5V
+5V
+5V
+1.3V
+3V