MAX705 Maxim, MAX705 Datasheet - Page 4

• Manufacturer Part Number: MAX705
• Description: Low-Cost / uP Supervisory Circuits
• Manufacturer: Maxim

Low-Cost, µP Supervisory Circuits
4
__________________________________________Typical Operating Characteristics
+1.30V
RESET
V
+5V
PFO
PFI
0V
0V
CC
_______________________________________________________________________________________
PFI
+1.25V
ASSERTION RESPONSE TIME
POWER-FAIL COMPARATOR
RESET OUTPUT VOLTAGE
vs. SUPPLY VOLTAGE
V
CC
MAX705/MAX707
V
T
30pF
CC
A
PFO
= +25°C
T
A
500ms/div
= +5V
400ns/div
+5V
V
= +25°C
CC
RESET
GND
1k
RESET
V
0V
CC
0V
2k
330pF
RESET
MAX707/MAX708/MAX813L
RESET OUTPUT VOLTAGE
vs. SUPPLY VOLTAGE
RESET
GND
V
CC
0V
T
+5V
+5V
+1.20V
A
500ms/div
= +25°C
10k
RESET
+5V
+5V
+5V
+5V
330pF
V
0V
0V
CC
V
CC
RESET, RESET ASSERTION
RESET RESPONSE TIME
V
CC
RESET
GND
MAX705/MAX707
+5V
+5V
V
T
CC
A
RESET
RESET
GND
V
MAX707
400ns/div
= +25°C
2 s/div
CC
= V
10k
30pF
RT
+5V
RESET
V
0V
0V
CC
330pF
10k
10k
T
A
= +25°C
RESET
GND
V
CC
330pF
RESET RESPONSE TIME
10k
0V
MAX813L
+4V
RESET
RESET
2 s/div
330pF
+1.20V
+5V
+5V
PFO
PFI
0V
0V
0V
PFI
DE-ASSERTION RESPONSE TIME
+1.25V
RESET
RESET
RESET, RESET DE-ASSERTION
GND
V CC
POWER-FAIL COMPARATOR
+4V
+4V
30pF
+5V
10k
330pF
V
T
A
CC
10k
PFO
400ns/div
MAX707
400ns/div
= +25°C
= V
RT
330pF
1k
V
T
A
CC
= +25°C
= +5V
+1.30V
RESET
RESET
+3V