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LNBH26LS 数据表(PDF) 25 Page - STMicroelectronics

部件名 LNBH26LS
功能描述  Dual LNBS supply and control IC with step-up and IC interface
PDF  33 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

LNBH26LS 数据表(HTML) 25 Page - STMicroelectronics

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LNBH26LS
Electrical characteristics
DocID025504 Rev 1
25/33
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 unless VSEL1 = 1, RSEL = 11 kW, DSQIN = low, VIN = 12 V, IOUT = 50 mA,
unless otherwise stated. Typical values are referred to TJ = 25 °C. VOUT = VOUT pin voltage.
See software description section for Section 6: "I²C bus interface" and Section 7: "I²C
interface protocol" .
Table 12: Electrical characteristics of section A/B
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 500 mA
75
100
mV
ILIM
Output current
limiting thresholds
RSEL = 15 kW
500
750
mA
RSEL = 20 kW
350
550
mA
ISC
Output short-circuit
current
RSEL = 15 kW
350
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 to 18 V
1.5
ms
T18-13
Soft transition fall
time
VOUT from 18 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 = 0, output shorted
TOFF/10
ms
ATONE
Tone amplitude
DSQIN = high, EXTM=0, TEN=1
IOUT from 0 to 500 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
EffDC/DC
DC-DC converter
efficiency
IOUT = 500 mA
93
%



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