psb2120 Infineon Technologies Corporation, psb2120 Datasheet - Page 4

• Manufacturer Part Number: psb2120
• Description: Isdn Remote Power Controller
• Manufacturer: Infineon Technologies Corporation

Pin Definitions and Functions (cont’d)
Pin
No.
P-DSO
15
16
17
18
19
20
21
22
23
24
Semiconductor Group
Pin
No.
P-DIP
13
14
15
16
17
18
19
20
21
22
Symbol Input (I)
ENA
CO
CN
CP
GND
V
I
I
V
V
N
P
EXT
REF
S
Output (O)
I
O
I
I
I
I/O
I
I
O
I
Definition
Enable
Comparator
output
Comparator
neg. input
Comparator
pos. input
Ground
External supply
Negative current
sense
Positive current
sense
Reference
voltage
Supply voltage
4
Function
A high input voltage at this pin will
stop the IRPC-function.
Connections of the universal usable
comparator.
All analog and digital signals are
referred to this pin.
Output of the internal CMOS-supply.
Via
can be supplied from an external
DC-supply in order to reduce chip
power dissipation.
When the voltage difference
between these two pins exceeds
100 mV, the digital current limiting
becomes active.
Output of the 4.0 V reference
voltage.
V
BAT
V
is the positive input voltage.
EXT
the internal CMOS-circuits
PSB 2120