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參數(shù)資料
| 型號： | LNBH21PD-TR |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | LNB SUPPLY AND CONTROL IC WITH STEP-UP CONVERTER AND I2C INTERFACE |
| 中文描述： | LNB電源與控制集成電路升壓轉(zhuǎn)換器和I2C接口 |
| 文件頁數(shù)： | 10/20頁 |
| 文件大?。?/td> | 493K |
| 代理商： | LNBH21PD-TR |
LNBH21
10/20
ELECTRICAL CHARACTERISTICS FOR LNBP SERIES
(T
J
= 0 to 85°C, EN=1, TTX=0/1, DSQIN=LOW,
LLC=TEN=PCL=VSEL=0, V
IN
=12V, I
O
=50mA, unless otherwise specified. See software description
section for I
2
C access to the system register).
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
IN
I
I
Supply Voltage
Supply Current
I
O
= 750 mA TEN=VSEL=LLC=1
EN=TEN=VSEL=LLC=1, NO LOAD
EN=0
I
O
= 750 mA VSEL=1
8
15
40
7
18.7
20.3
13.75
14.75
40
60
200
1000
700
V
20
3.5
18
19.5
13.25
14.25
5
5
mA
V
O
Output Voltage
LLC=0
LLC=1
LLC=0
LLC=1
VSEL=0
VSEL=1
17.3
18.7
12.75
13.75
V
V
O
Output Voltage
I
O
= 750 mA VSEL=0
V
V
O
Line Regulation
V
IN1
= 8 to 15V
mV
V
O
I
MAX
Load Regulation
Output Current Limiting
VSEL=0 or 1, I
O
= 50 to 750mA
ISEL = Floating or V > 3.3V
ISEL = GND
mV
mA
750
450
I
SC
Output Short Circuit Current
VSEL=0
VSEL=1
300
200
900
mA
t
OFF
Dynamic Overload
protection OFF Time
Dynamic Overload
protection ON Time
Tone Frequency
Tone Amplitude
Tone Duty Cycle
Tone Rise and Fall Time
External Modulation Gain
External Input Voltage
External Modulation
Impedance
DC/DCConverterSwitching
Frequency
Tone Detector Frequency
Capture Range
Tone Detector Input
Amplitude
Tone Detector Input
Impedance
DSQOUT Pin Logic LOW
DSQOUT Pin Leakage
Current
DSQIN Input Pin Logic
LOW
DSQIN Input Pin Logic
HIGH
DSQIN Pins Input Current
Output Backward Current
Temperature Shutdown
Threshold
T
SHDN
Temperature Shutdown
Hysteresis
PCL=0
Output Shorted
ms
t
ON
PCL=0
Output Shorted
t
OFF
/10
ms
f
TONE
A
TONE
D
TONE
t
r
, t
f
G
EXTM
V
EXTM
Z
EXTM
TEN=1
TEN=1
TEN=1
TEN=1
V
OUT
/
V
EXTM
,
AC Coupling
f = 10Hz to 50KHz
20
0.55
40
5
22
0.72
50
8
6
24
0.9
60
15
KHz
V
PP
%
μ
s
f = 10Hz to 50KHz
400
mV
PP
260
f
SW
220
kHz
f
DETIN
0.4Vpp sinewave
18
24
kHz
V
DETIN
f
IN
=22kHz sinewave
0.2
1.5
V
PP
Z
DETIN
150
k
V
OL
I
OZ
Tone present
Tone absent
I
OL
=2mA
V
OH
= 6V
0.3
0.5
10
V
μ
A
V
IL
0.8
V
V
IH
2
V
I
IH
I
OBK
T
SHDN
V
IH
= 5V
EN=0,
15
-6
150
μ
A
mA
°C
V
OBK
= 18V
-15
15
°C
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