LNBH24 STMicroelectronics, LNBH24 Datasheet - Page 19

• Manufacturer Part Number: LNBH24
• Description: Dual LNB supply and control IC with step-up and I2C interface
• Manufacturer: STMicroelectronics

8
Table 8.
Eff
Symbol
T
D
F
A
F
13/18
V
V
V
T
I
R
T
TONE
TONE
t
EXTM
V
MAX
I
TONE
DC-DC
I
OUT
OUT
OUT
OFF
r
SC
IN
ON
, t
- T
IN
f
F
Supply voltage
Supply current
Output voltage
Line regulation
Load regulation
13/18V Rise and Fall
transition time by V
Output current limiting
Output short circuit current
Dynamic overload protection
OFF time
Dynamic overload protection
ON time
Tone frequency
Tone amplitude
Tone duty cycle
Tone rise or fall time
EXTM frequency
DC-DC converter efficiency
Electrical characteristics
Refer to the typical application circuit in
VSEL=LLC=TEN=PCL=ITEST=TTX=AUX=0, R
50 mA, unless otherwise stated. Typical values are referred to T
voltage. See software description section for I²C access to the system register.
Electrical characteristics of sections A/B
Parameter
CTRL
pin
I
Both sections A and B enabled,
I
Both sections A and B enabled,
EN=TEN=TTX=1, I
EN=0
AUX=1; I
V
V
V
V
V
HIGH and vice versa, I
450mA, C
R
R
V
PCL=0, Output shorted
PCL=0, Output shorted
DSQIN=HIGH or TEN=1, TTX=1
DSQIN=HIGH or TEN=1, TTX=1
I
C
DSQIN=HIGH or TEN=1, TTX=1
DSQIN=HIGH or TEN=1, TTX=1
V
I
OUT
OUT
OUT
OUT
SEL
SEL
IN
SEL
SEL
SEL
EXTM-H
SEL
SEL
OUT
=8 to 15V
=750mA, VSEL=LLC=1
=0
=750mA
=1, I
=0, I
=0 or 1, I
=LLC=1, V
=0/1, AUX=0/1
=11KΩ
= 22KΩ
from 0 to750mA
from 0 to 750nF
OUT
=3.3V, V
OUT
OUT
O
Test conditions
from 10 to 330nF
=50mA
=750mA
=750mA
OUT
Figure
CTRL
EXTM-L
from 50 to750mA
OUT
from LOW to
4, T
OUT
=0
SEL
=0V,
LLC=0
LLC=1
LLC=0
LLC=1
VSEL=0
VSEL=1
J
from 6 to
= 11 kΩ, DSQIN=LOW, V
from 0 to 85 °C, EN=1,
(1)
Min.
17.8
18.8
12.8
13.8
750
300
0.4
20
43
20
J
8
5
= 25 °C. V
T
OFF
1000
Typ.
18.5
19.5
13.4
14.4
0.65
575
900
12
20
50
22
22
50
22
93
6
5
5
8
/10
OUT
I
= 12 V, I
Max.
1000
19.2
20.2
200
600
0.9
15
30
70
14
15
40
60
24
24
57
15
=V
oRX
OUT
Unit
kHz
V
kHz
pin
mA
mV
mV
mA
mA
ms
µs
µs
19/30
%
%
V
V
PP
=