CAT859 ONSEMI [ON Semiconductor], CAT859 Datasheet - Page 7

• Manufacturer Part Number: CAT859
• Description: 3-Pin Microprocessor Power Supply Supervisors
• Manufacturer: ONSEMI [ON Semiconductor]

CAT853 AND CAT863 OPEN-DRAIN RESET
APPLICATION
The CAT853 and CAT863 features an open-drain
RESET output and therefore need a pull-up resistor
on the output for proper operation, as shown on
Figure 5. An advantage of the open-drain output
includes the ability to “wire AND” several outputs
together to form an inexpensive logic circuit. It is also
possible to have the pull-up resistor connected to a
different supply which can be higher than the CAT8x3
V
in most applications, typical values being between
5 kΩ and 10 kΩ.
© 2009 SCILLC. All rights reserved.
Characteristics subject to change without notice
CC
pin. The value of the pull-up resistor is not critical
Figure 5. Typical CAT8x3 Open-Drain Circuit Configuration
Power
Supply
¯¯¯¯¯¯
CAT8x3
GND
V
CC
RESET
7
5kΩ
RESET
INPUT
CAT853, CAT863, CAT859, CAT869
GND
µP
V
CC
Doc. No. MD-3026, Rev. G