L9705 STMicroelectronics, L9705 Datasheet - Page 4
L9705
Manufacturer Part Number
L9705
Description
IC INTERFACE DOUBLE QUAD 20-DIP
Manufacturer
STMicroelectronics
Datasheet
1.L9705.pdf
(8 pages)
Specifications of L9705
Applications
Monitoring, Digital Current
Voltage - Supply
5 V ~ 25 V
Package / Case
20-DIP (0.300", 7.62mm)
Mounting Type
Through Hole
Mounting Style
Through Hole
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Interface
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
L9705D
Manufacturer:
ST
Quantity:
20 000
Company:
Part Number:
L9705D013TR
Manufacturer:
OSRAM
Quantity:
5 149
L9705
Figure 1. Typical application diagram for the L9705 circuit. The current flowing in the arrow
FUNCTIONAL DESCRIPTION
The L9705 circuit monitors the status of the contacts which are connected through the series external re-
sistors R
fig.2 for GND connected contacts (IN 1 to 4) and as shown in fig. 3 for V
Figure 2. The contact sense input connection with the contact equivalent circuit for GND
Figure 3. The contact sense input connection with the contact equivalent circuit for V
4/8
IN
connected contacts.
connected contacts.
direction is assumed positive. The external capacitors CIN and COUT represent the total
wiring capacitance at the corresponding pins.
to the contact sense input pins. The contacts equivalent circuit is supposed to be as shown in
BAT
connected contacts (IN 5 to 8).
BAT