ADM6823 Analog Devices, ADM6823 Datasheet - Page 6

• Manufacturer Part Number: ADM6823
• Description: Low Voltage Supervisory Circuit with Watchdog, Manual Reset and Active-Low, Push-Pull Reset Output
• Manufacturer: Analog Devices

Specifications of ADM6823

• Batt-backup-flg: No
• Manual Reset Capability: Yes
• Package: SOT
• Power Fail Indicator: No
• Reset Threshold Summary: 9 Options--1.58 to 4.63V
• Reset Output-stage: Active-Low/Push-Pull
• Min Reset Timeout (ms): 140
• Typ Watchdog Timeout (ms): 1600
• Watchdog Timer: Yes

ADM6821/ADM6822/ADM6823/ADM6824/ADM6825
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
Table 4. Pin Function Descriptions
Pin No.
1
2
3
4
5
Name
RESET
(ADM6822/ADM6823/ADM6824/ADM6825)
RESET (ADM6821)
GND
MR (ADM6821/ADM6822/ADM6823)
RESET (ADM6824/ADM6825)
WDI
(ADM6821/ADM6822/ADM6823/ADM6824)
MR (ADM6825)
V
Figure 3. ADM6822/ADM6823 Pin Configuration
CC
Figure 2. ADM6821 Pin Configuration
RESET
RESET
GND
GND
MR
MR
1
2
3
1
2
3
(Not to Scale)
ADM6822/
(Not to Scale)
ADM6821
ADM6823
TOP VIEW
TOP VIEW
5
4
5
4
V
WDI
V
WDI
CC
CC
Active-Low Reset Output. Asserted whenever V
Open-Drain Output Stage for the ADM6822.
Push-Pull Output Stage for the ADM6823/ADM6824/ADM6825.
Active-High Push-Pull Reset Output.
Ground.
Manual Reset Input. This is an active-low input, which, when forced low for at
least 1 μs, generates a reset. It features a 50 kΩ internal pull-up.
Active-High Push-Pull Reset Output.
Watchdog Input. Generates a reset if the voltage on the pin remains low or high
for the duration of the watchdog timeout. The timer is cleared if a logic transition
occurs on this pin or if a reset is generated.
Manual Reset Input.
Power Supply Voltage Being Monitored.
Description
Rev. 0 | Page 6 of 12
Figure 4. ADM6824 Pin Configuration
Figure 5. ADM6825 Pin Configuration
RESET
RESET
RESET
RESET
GND
GND
1
2
3
1
2
3
(Not to Scale)
(Not to Scale)
ADM6824
ADM6825
TOP VIEW
TOP VIEW
CC
is below the reset threshold, V
5
4
5
4
V
WDI
V
MR
CC
CC
TH
.