LNBH25 STMicroelectronics, LNBH25 Datasheet - Page 24

• Manufacturer Part Number: LNBH25
• Description: LNB supply and control IC with step-up and I2C interface
• Manufacturer: STMicroelectronics

Electrical characteristics
8
Table 13.
24/34
Eff
Symbol
T13-18
T18-13
D
A
F
V
V
V
T
I
I
T
TONE
tr, tf
TONE
V
MAX
MAX
I
TONE
SS
SS
DC/DC
I
OUT
OUT
OUT
OFF
SC
ON
IN
IN
Supply voltage
Supply current
Output voltage total accuracy Valid at any V
Line regulation
Load regulation
Output current limiting
thresholds
Output current limiting
thresholds
Output short-circuit current
Soft-start time
Soft-start time
Soft transition rise time
Soft transition fall time
Dynamic overload protection
OFF Time
Dynamic overload protection
ON Time
Tone amplitude
Tone frequency
Tone duty cycle
Tone rise or fall time
DC-DC converter efficiency
Electrical characteristics
Refer to
RSEL = 11.5 kΩ, DSQIN = LOW, V
values are referred to T
for I²C access to the system register (
Electrical characteristics
Parameter
Section 5
(1)
(2)
, T
J
from 0 to 85 °C, all DATA 1..4 register bits set to 0 unless VSEL1 = 1,
J
= 25 °C. V
I
22 kHz Tone enabled (TEN=1),
DSQIN = High, I
VSEL1=VSEL2=VSEL3=VSEL4=0
V
I
RSEL = 11.5 kΩ, ISET = 0
RSEL = 16.2 kΩ, ISET = 0
RSEL = 22 kΩ, ISET = 0
RSEL = 11.5 kΩ, ISET = 1
RSEL = 16.2 kΩ, ISET = 1
RSEL = 22 kΩ, ISET = 1
RSEL = 11.5 kΩ, ISET= 0
V
V
V
V
PCL=0, Output Shorted
PCL = TIMER = 0, Output Shorted
PCL = 0, TIMER = 1, Output Shorted
DSQIN=High, EXTM=0, TEN=1
I
C
DSQIN=High, EXTM=0, TEN=1
I
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
IN
BUS
= 8 to 16 V
Doc ID 022433 Rev 4
from 0 to 750 mA
= 0 mA
from 50 to 750 mA
= 500 mA
from 0 to 13 V
from 0 to 18 V
from 13 to 18 V
from 18 to 13 V
from 0 to 750 nF
OUT
IN
Test conditions
= 12 V, I
Section 6
OUT
= V
OUT
selected level
OUT
= 0 mA
OUT
pin voltage. See software description section
and
= 50 mA, unless otherwise stated. Typical
Section 7
).
Min.
0.55
-3.5
750
500
350
20
43
8
5
T
T
0.675
OFF
Typ.
OFF
100
900
500
350
250
500
1.5
1.5
12
10
22
50
93
6
1
4
6
8
/10
/5
Max.
1100
+3.5
750
550
0.8
57
16
40
24
15
LNBH25
Unit
V
kHz
mA
mA
mA
mV
mA
mA
mA
ms
ms
ms
ms
ms
µs
%
%
%
V
PP