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ISL5571A 数据表(PDF) 6 Page - Intersil Corporation

部件名 ISL5571A
功能描述  Access High Voltage Switch
Download  12 Pages
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制造商  INTERSIL [Intersil Corporation]
网页  http://www.intersil.com/cda/home
标志 INTERSIL - Intersil Corporation

ISL5571A 数据表(HTML) 6 Page - Intersil Corporation

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Pinout
ISL5571A
TOP VIEW
TABLE 8. PIN DESCRIPTIONS - ISL5571A
PIN
NO.
PIN
NAME
DESCRIPTION
PIN
NO.
PIN
NAME
DESCRIPTION
1FGND
Fault Ground. Internally, this pin is electrically isolated
from DGND.
16
VBAT
Battery Voltage. Used as a reference for
protection circuit. Provides Trigger
current for the protection SCR.
2TBAT
Connect to TIP on SLIC side.
15
RBAT
Connect to RING on SLIC side.
3TLINE
Connect to TIP on line or phone side.
14
RLINE
Connect to RING on line or phone side.
4
NC
No Connection.
13
NC
No Connection.
5
NC
No Connection.
12
RRING
Connect to ringing generator.
6TRING
Connect to Return Ground for Ringing Generator.
11
LATCH
Logic State Latch Control, active-high,
transparent low.
7VDD
+5V supply.
10
INPUT
Logic Level Input Switch Control.
8TSD
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.
9DGND
Digital Ground. Internally, this pin is
electrically isolated from FGND.
FIGURE 1. APPLICATION CIRCUIT
CROWBAR
PROTECTION
RING
TIP
R1
SLIC
SCR
TIP LINE BREAK
RING LINE BREAK
TBAT
RING
RETURN
RING
ACCESS
SW3
SW1
SW2
SW4
CONTROL LOGIC
RBAT
FGND
TRING
RRING
TSD
16
1
14
12
11
10
8
7
6
2
3
INPUT
LATCH
VDD
VBAT
RLINE
TLINE
15
9
R2
BATTERY
RING
GENERATOR
+ 5 VDC
- 48 VDC
DGND
EXTERNAL
TIP
RING
RRLY
D1
D2
D3
D4
RGEN
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.
VBAT
GND
ISL5571A


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