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LNBH30 bảng dữ liệu(PDF) 20 Page - STMicroelectronics

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LNBH30 bảng dữ liệu(HTML) 20 Page - STMicroelectronics

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Electrical characteristics
LNBH30
20/27
DocID023739 Rev 2
8
Electrical characteristics
Refer to Section 5: "Typical application circuits", TJ from 0 to 85 °C, data register bits set to
0 except VSEL0 = 1, RSEL = 16.2 kΩ, V
IN = 12 V, IOUT = 50 mA, unless otherwise stated.
Typical values are referred to TJ = 25 °C. VOUT= VOUT pin voltage. See Section 7: "I²C
interface protocol".
Table 9: Electrical characteristics
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VIN
Supply voltage
10
12
17.5
V
IIN
Supply current
IOUT = 0 mA
6
mA
VSEL0=VSEL1=VSEL2=0
1
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
100
IMAX
Output current limiting
thresholds
RSEL = 16.2 kΩ
500
650
750
mA
RSEL = 22 kΩ
350
550
ISC
Output short-circuit
current
RSEL = 16.2 kΩ
400
mA
SS
Soft-start time
VOUT from 0 to 11.8 V
4
ms
SS
Soft-start time
VOUT from 0 to 15 V
5
ms
T11-15
Soft transition rise
time
VOUT from 11.8 V to 15 V
1.5
ms
T15-11
Soft transition fall
time
VOUT from 15 V to 11.8 V
1.5
ms
TOFF
Dynamic overload
protection off-time
Output shorted
900
ms
TON
Dynamic overload
protection on-time
Output shorted
TOFF/10
EffDC/DC
DC-DC converter
efficiency
IOUT = 500 mA
93
%
FSW
DC-DC converter
switching frequency
440
kHz
UVLO
Undervoltage lockout
thresholds
UVLO threshold rising
4.8
V
UVLO threshold falling
4.7
VLPD
Low power diagnostic
(LPD) thresholds
VLPD threshold rising
7.2
V
VLPD threshold falling
6.7
IOBK
Output backward
current
All VSELx = 0, VOBK = 30 V
-3
-6
mA
ISINK
Output low-side sink
current
VOUT forced at VOUT_NOM + 0.1
V
50
mA
ISINK_TIME-OUT
Low-side sink current
timeout
VOUT forced at VOUT_NOM + 0.1
V, PDO I²C bit is set to 1 after
this time has elapsed
10
ms



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