MAX670 Maxim, MAX670 Datasheet - Page 4

• Manufacturer Part Number: MAX670
• Description: Low-Voltage / SOT23 P Supervisors with Power- Fail In/Out / Manual Reset / and Watchdog Timer
• Manufacturer: Maxim

Low-Voltage, High-Accuracy, Triple/Quad
Voltage µP Supervisory Circuits in SOT Package
(V
4
IN2
100
232
231
230
229
228
227
226
225
224
223
222
221
220
90
80
70
60
50
40
30
20
10
PIN
0
_______________________________________________________________________________________
1
2
3
4
5
6
= V
-40
0
MAXIMUM IN_ TRANSIENT DURATION
vs. RESET THRESHOLD OVERDRIVE
100
CC
RESET THRESHOLD OVERDRIVE (mV)
200 300 400
-15
= 3.0V, T
RESET TIMEOUT DELAY
RESET
NAME
GND
V
IN1
IN2
IN3
IN4
RESET ASSERTED
ABOVE THIS LINE
vs. TEMPERATURE
CC
TEMPERATURE (°C)
10
A
500 600 700
= +25°C)
Input Voltage 1. See Selector Guide for monitored voltages.
Input Voltage 2. See Selector Guide for monitored voltages. IN2 is the power-supply input for the device.
For the MAX6700/MAX6710Q, V
Input Voltage 3. See Selector Guide for monitored voltages.
Input Voltage 4. See Selector Guide for monitored voltages.
Ground
Active-Low, Reset Output. RESET goes low when any input goes below its specified threshold. After all
inputs rise above their threshold voltage, RESET remains low for 5µs (MAX6700) or for 200ms (MAX6710)
before going high. The open-drain RESET output has a weak (10µA) internal pullup to IN2 or V
35
800
60
900
1000
85
100
90
80
70
60
50
40
30
20
10
0
Typical Operating Characteristics (continued)
0
RESET PROPAGATION DELAY (MAX6700)
RESET DELAY vs. RESET THRESHOLD
100
OVERDRIVE (IN_ DECREASING)
RESET THRESHOLD OVERDRIVE (mV)
200 300 400
CC
is the power-supply input for the device and is not a monitored voltage.
2µs/div
500 600 700
FUNCTION
800
MAX6700 toc08
900
1000
IN_
2V/div
RESET
2V/div
RESET TIMEOUT DELAY (MAX6710)
RESET PULLUP AND PULLDOWN
RESPONSE (C
Pin Description
10µs/div
40ms/div
L
= 47pF)
CC
MAX6700 toc06
MAX6700 toc09
.
IN_
100mV/div
AC-COUPLED
RESET
2V/div
IN_
2V/div
RESET
2V/div