ISL5571AIB Intersil Corporation, ISL5571AIB Datasheet - Page 6

• Manufacturer Part Number: ISL5571AIB
• Description: Access High Voltage Switch
• Manufacturer: Intersil Corporation

Pinout
†
†
NO.
PIN
1
2
3
4
5
6
7
8
TLINE EXTERNAL PROTECTOR MAXIMUM
VOLTAGE PRIOR TO SWITCHING TO THE
ON STATE SHOULD NOT EXCEED 130V.
RLINE EXTERNAL PROTECTOR MAXIMUM
VOLTAGE PRIOR TO SWITCHING TO
THE ON STATE SHOULD NOT EXCEED 220V.
TIP
RING
NAME
T
F
T
T
V
T
PIN
RING
GND
LINE
NC
NC
BAT
DD
SD
R1
R2
Fault Ground. Internally, this pin is electrically isolated
from D
Connect to TIP on SLIC side.
Connect to TIP on line or phone side.
No Connection.
No Connection.
Connect to Return Ground for Ringing Generator.
+5V supply.
Temperature Shutdown Pin. Can be used as a logic level
input or output. See Truth Table. As an output, will read
+5V when device is in its operational mode and 0V in the
thermal shutdown mode. In the ISL5571A, the thermal
shutdown mechanism cannot be disabled.
PROTECTION
EXTERNAL
CROWBAR
GND.
6
T
R
LINE
LINE
†
DESCRIPTION
14
3
R
RING
T
RING
TABLE 8. PIN DESCRIPTIONS - ISL5571A
12
FIGURE 1. APPLICATION CIRCUIT
6
R
RING
GENERATOR
BATTERY
RING
ACCESS
SW4
RING
RETURN
SW3
GEN
RING LINE BREAK
TIP LINE BREAK
ISL5571A
TOP VIEW
ISL5571A
SW1
SW2
LATCH
11
D2
D1
PIN
NO.
16
15
14
13
12
11
10
INPUT
9
10
CONTROL LOGIC
D4
LATCH
D3
R
INPUT
NAME
R
D
V
R
PIN
RING
NC
LINE
GND
BAT
D
BAT
V
GND
BAT
9
- 48 V
SCR
16
Battery Voltage. Used as a reference for
protection circuit. Provides Trigger
current for the protection SCR.
Connect to RING on SLIC side.
Connect to RING on line or phone side.
No Connection.
Connect to ringing generator.
Logic State Latch Control, active-high,
transparent low.
Logic Level Input Switch Control.
Digital Ground. Internally, this pin is
electrically isolated from F
DC
TSD
8
15
2
1
7
T
F
R
V
BAT
GND
DD
BAT
DESCRIPTION
+ 5 V
RING
DC
TIP
GND
GND
SLIC
V
RRLY
.
BAT