LNBH25L STMicroelectronics, LNBH25L Datasheet - Page 20

• Manufacturer Part Number: LNBH25L
• Description: LNB supply and control IC with step-up and IA?C interface
• Manufacturer: STMicroelectronics

Electrical characteristics
8
Table 12.
20/28
Eff
Symbol
T13-18
T18-13
D
F
A
UVLO
V
V
V
T
I
F
T
TONE
V
TONE
t
V
MAX
I
TONE
SS
SS
I
OUT
OUT
OUT
DC/DC
OFF
r
SC
SW
ON
, t
IN
LP
IN
f
Supply voltage
Supply current
Output voltage total accuracy Valid at any V
Line regulation
Load regulation
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
DC-DC converter switching
frequency
Undervoltage lockout
thresholds
Low power diagnostic (LPD)
thresholds
Electrical characteristics
Refer to
RSEL = 16.2 kΩ, DSQIN = LOW, V
values are referred to T
for I²C access to the system register (
Electrical characteristics
.
Parameter
Section 5
(1)
, T
(2)
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 = 16.2 kΩ
RSEL = 22 kΩ
RSEL= 16.2 kΩ
V
V
V
V
PCL=0, output shorted
PCL=0, output shorted
DSQIN=High, EXTM=0, TEN=1
I
C
DSQIN=High, EXTM=0, TEN=1
I
UVLO threshold rising
UVLO threshold falling
V
V
OUT
OUT
OUT
OUT
IN
OUT
OUT
OUT
OUT
LP
LP
BUS
Doc ID 022634 Rev 2
=8 to 16 V
=500mA
threshold rising
threshold falling
=0 mA
from 50 to 500 mA
from 0 to 500 mA
from 0 to 13 V
from 0 to 18 V
from 13V to 18 V
from 18V to 13 V
from 0 to 750 nF
OUT
IN
= 12 V, I
Test conditions
Section 6
= V
OUT
OUT
OUT
selected level
OUT
=0 mA
pin voltage. See software description section
and
= 50 mA, unless otherwise stated. Typical
Section 7
).
Min.
0.55
-3.5
500
350
20
43
8
5
T
0.675
OFF
Typ.
350
900
440
1.5
1.5
4.8
4.7
7.2
6.7
12
10
75
22
50
93
6
1
4
6
8
/10
Max.
+3.5
100
750
550
0.8
16
40
24
57
15
LNBH25L
Unit
V
kHz
kHz
mA
mV
mA
mA
ms
ms
ms
ms
ms
µs
%
%
%
V
V
V
PP