參數(shù)資料
型號(hào)： LT1684IS
廠商： LINEAR TECHNOLOGY CORP
元件分類： 無繩電話/電話
英文描述： Micropower Ring Tone Generator
中文描述： TELEPHONE RINGER CKT, PDSO14
封裝： 0.150 INCH, PLASTIC, SOP-14
文件頁數(shù)： 3/16頁
文件大小： 221K
代理商： LT1684IS
3
LT1684
Note 1:
Absolute Maximum Ratings are those values beyond which the life
of the device may be impaired.
Note 2:
IC Supply current specification represents unloaded condition and
does not include external FET gate pull up/down currents (GATE
+
, GATE
–
pins). Actual total IC bias currents will be higher and vary with operating
conditions. See Applications Information.
Note 3
: PWM inputs are high impedance through
±
100mV beyond the
input thresholds.
Note 4:
10k resistor from pin AMPIN to ground.
Note 5:
Guaranteed but not tested.
The
G
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at T
A
= 25
°
C.
V
+
– V
–
= 20V, Voltages referenced to pin OUT, V
OUT
= V
ATREF
unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
Supply and Protection
I
S
DC Supply Current (Note 2)
IN A – IN B
≥
1.6V
|V
+
|
Local Supply Voltages
V
GATE
+
≥
V
+
|V
–
|
V
GATE
–
≤
V
–
V
GATE
+
Active Tracking Supply FET
I
GATE
+ = –100
μ
A,
Bias Voltage
AT
REF
= 0V
V
GATE
–
Active Tracking Supply FET
I
GATE
– = 100
μ
A,
Bias Voltage
AT
REF
= 0V
PWM Receiver
f
PWM
Input Carrier Frequency
V
IN
Minimum Valid Differential Input
IN A – IN B or IN B – IN A
Differential Input Threshold
| IN A – IN B |
R
IN
Differential Input Overdrive Impedance
V
IN
> V
TH
+ 100mV
(Note 3, 5)
R
INA,INB
Single-Ended Input Impedance
To Pin OUT
(Note 5)
BG Buffer
V
BGOUT
BG
OUT
Normalized Voltage
Magnitude |V
BGOUT
|
MIN
TYP
MAX
UNITS
G
680
10
950
μ
A
V
G
6.5
G
13.2
14.0
14.8
V
G
–14.8
–14.0
–13.2
V
10
kHz
G
1.6
0.50
V
V
G
0.70
1.00
G
7
10
k
G
50
k
1.235
1.225
–7
–10
±
2
1.250
1.250
1.265
1.275
7
10
V
V
G
V
BGOUTOS
Output Offset Voltage
[(V
BGOUT
+) + (V
BGOUT
–)]/2
BG
OUT
Short-Circuit Current
BG
OUT
Output Impedance
BG
OUT
Rise Time (10% to 90%)
BG
OUT
Fall Time (10% to 90%)
BG
OUT
RiseTime – Fall Time
BG
OUT
Propagation Delay PWM Input
Transition to 10% Output (Rising Edge)
BG
OUT
Propagation Delay PWM Input
Transition to 90% Output (Falling Edge)
BG
OUT
Propagation Delay
Rising Edge – Falling Edge
Output Amplifier
V
OUTOS
OUT Offset Voltage
mV
mV
mA
ns
ns
ns
ns
G
I
BGOUTSC
R
BGOUT
t
r
t
f
t
r-f
t
pr
G
±
4.5
0.2
160
260
–100
340
–2mA
≤
I
BGOUT
≤
2mA
R
OUT
= 5k, C
OUT
= 10pF
R
OUT
= 5k, C
OUT
= 10pF
G
300
400
0
500
G
G
–200
R
OUT
= 5k, C
OUT
= 10pF
G
t
pf
R
OUT
= 5k, C
OUT
= 10pF
G
440
600
ns
t
p
G
–200
–100
100
ns
V
AMPIN
= 0v, I
OUT
= 0A
R
AMPIN
= 10k (Note 4)
–10mA
≥
I
LIM
+
≥
–100mA, LIM
+
Shorted to OUT
10mA
≤
I
OUT
≤
100mA, LIM
–
Shorted to V
–
LIM
+
Shorted to OUT
LIM
–
Shorted to V
–
–6
–8
6
8
mV
mV
mA
G
R
OUT
OUT Output Impedance
0.01
0.15
±
190
I
OUTSC
OUT Short-Circuit Current
G
±
100
ELECTRICAL CHARACTERISTICS
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