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LNBH26S Datasheet(PDF) 23 Page - STMicroelectronics

Part # LNBH26S
Description  Dual LNBS supply and control I2C with step-up and IC interface
PDF  35 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

LNBH26S Datasheet(HTML) 23 Page - STMicroelectronics

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8
Electrical characteristics
Refer to Section 5 Typical application circuits, TJ from 0 to 85 °C, all DATA 1..4 register bits set to 0 except VSEL1
= 1, RSEL = 11 kΩ, DSQIN = low, VIN = 12 V, IOUT = 50 mA, unless otherwise stated. Typical values are referred
to TJ = 25 °C. VOUT = VOUT pin voltage. See Section 6 I²C bus interface and Section 7 I²C interface protocol.
Table 12. A/B section electrical characteristics
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VIN
Supply voltage (1)
8
12
16
V
IIN
Supply current
Both sections A and B enabled
IOUT = 0 mA
12
mA
22 kHz tone enabled (TEN-A/B =
1, DSQIN-A/B = high), IOUT = 0 mA
19
Both sections A and B set in
standby:
VSEL1=VSEL2=VSEL3=VSEL4=0
2
VOUT
Output voltage total
accuracy
Valid at any VOUT selected level
-3.5
+3.5
%
VOUT
Line regulation
VIN = 8 to 16 V
40
mV
VOUT
Load regulation
IOUT from 50 to 750 mA
100
ILIM
Output current limiting
thresholds
RSEL = 11 kΩ, ISET = 0
750
1100
mA
RSEL = 15 kΩ, ISET = 0
500
750
RSEL = 20 kΩ, ISET = 0
350
550
ILIM
Output current limiting
thresholds
RSEL = 11 kΩ, ISET = 1
400
mA
RSEL = 15 kΩ, ISET = 1
280
RSEL = 20 kΩ, ISET = 1
200
ISC
Output short-circuit
current
RSEL = 11 kΩ, ISET = 0
500
mA
SS
Soft-start time
VOUT from 0 to 13 V
4
ms
SS
Soft-start time
VOUT from 0 to 18 V
6
ms
T13-18
Soft transition rise time
VOUT from 13 V to 18 V
1.5
ms
T18-13
Soft transition fall time
VOUT from 18 V to 13 V
1.5
ms
TOFF
Dynamic overload
protection off-time
PCL = 0, output shorted
900
ms
TON
Dynamic overload
protection on-time
PCL = TIMER = 0, output shorted
TOFF/10
PCL = 0, TIMER = 1, output
shorted
TOFF/5
ATONE
Tone amplitude
DSQIN=high, EXTM=0, TEN=1
IOUT from 0 to 750 mA
CBUS from 0 to 750 nF
0.55
0.675
0.8
VPP
FTONE
Tone frequency
DSQIN=high, EXTM=0, TEN=1
20
22
24
kHz
DTONE
Tone duty cycle
43
50
57
%
tr, tf
Tone rise or fall time (2)
5
8
15
µs
LNBH26S
Electrical characteristics
DS8975 - Rev 5
page 23/35



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