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參數(shù)資料
| 型號： | L7590C |
| 廠商： | Lineage Power |
| 英文描述： | Telephone Ringing Driver(電話振鈴驅(qū)動(dòng)器) |
| 中文描述： | 電話振鈴驅(qū)動(dòng)（電話振鈴驅(qū)動(dòng)器） |
| 文件頁數(shù)： | 2/10頁 |
| 文件大?。?/td> | 269K |
| 代理商： | L7590C |
2
Lucent Technologies Inc.
Data Sheet
June 1998
L7590C Telephone Ringing Driver
Pin Information
Absolute Maximum Ratings
(T
A
= 25
°
C)
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are abso-
lute stress ratings only. Functional operation of the device is not implied at these or any other conditions in excess
of those given in the operational sections of this data sheet. Exposure to absolute maximum ratings for extended
periods may adversely affect device reliability.
Pin
14
3
12
8
Symbol
V
DD
GNDD
GNDR
V
NEG
Type
—
—
—
—
Name/Function
+5 V Power Supply
Digital Ground
Ringing Ground
Negative Power Supply
a 1
μ
F capacitor from V
Internal Reference Voltage
Clock
. Modulated pulse stream. Low = 0 V. High = V
Ringing Generator Output
Bootstrap Capacitor
. Connect a 0.1
Bootstrap Capacitor
. Connect a 0.1
Filter Inductor
. Connect an inductor to pin L2.
Filter Inductor
. Connect an inductor to pin L1.
Not Enable
. A logic low activates the internal circuitry. A logic high puts the device
in a low-power powerdown mode.
.
.
.
. Determines the swing of the ringing generator. Connect
NEG
to V
REF
.
. Connect a 1
μ
F capacitor from V
5
V
CLK
OUT
CB1
CB2
L1
L2
EN
REF
—
I
O
—
—
—
—
—
REF
to V
NEG
.
16
7
1
2
9
10
15
DD
.
. Connect to ringing relay contact through a filter.
μ
F capacitor between CB1 and CB2.
μ
F capacitor between CB1 and CB2.
Parameter
Min
—
—
–0.5
–40
—
5
Typ
7.0
–200
—
—
150
—
Max
—
—
7.0
125
—
95
Unit
V
V
V
°
C
°
C
%
V
V
Timing Input Voltage
Storage Temperature Range
Maximum Junction Temperature
Relative Humidity Range
DD
NEG
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