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BL2940 PDF даташит

Спецификация BL2940 изготовлена ​​​​«BELLING» и имеет функцию, называемую «1A Low-Dropout Regulator».

Детали детали

Номер произв BL2940
Описание 1A Low-Dropout Regulator
Производители BELLING
логотип BELLING логотип 

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BL2940 Даташит, Описание, Даташиты
BL2940
1A Low-Dropout Regulator BL2940
DESCRIPTION
The BL2940 positive voltage regulator features the ability to
source 1A of output current with a dropout voltage of typically
0.5V and a maximum of 1V over the entire temperature range.
Furthermore, a quiescent current reduction circuit has been
SOT223
included which reduces the ground current when the differential
between the input voltage and the output voltage exceeds
approximately 3V. The quiescent current with 1A of output
TO-252
current and an input-output differential of 5V is therefore only 30
mA. Higher quiescent currents only exist when the regulator is in
the dropout mode (VIN − VOUT 3V). Designed also for vehicular
TO-220
applications, the BL2940 and all regulated circuitry are protected
from reverse battery installations or 2-battery jumps. During line
transients, such as load dump when the input voltage can
TO-263
momentarily exceed the specified maximum operating voltage,
the regulator will automatically shut down to protect both the internal circuits and the load.
The BL2940 cannot be harmed by temporary mirror-image insertion. Familiar regulator
features such as short circuit and thermal overload protection are also provided.
F E AT U R E S
Dropout voltage typically 0.5V @IO = 1A
Output current in excess of 1A
Output voltage trimmed before assembly
Reverse battery protection
Internal short circuit current limit
Mirror image insertion protection
P+ Product Enhancement tested
Page1
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BL2940 Даташит, Описание, Даташиты
PIN CONFIGURATION
SOT223
TO-220
BLOCK DIAGRAM
BL2940
TO-252
TO-263
Page2
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BL2940 Даташит, Описание, Даташиты
BL2940
ABSOLUTE MAXIMUM RATINGS (Ta=25) *1
Characteristic
Surge Supply voltage(t100ms)
Input Voltage
Internal power dissipation
Maximum junction temperature
Storage temperature range
ESD susceptibility HBM
Limit
60
26
Internally Limited
150
-65 ~ +150
2
Unit
V
V
kV
ELECTRICAL CHARACTERISTICS
(VIN=VO+5V, IO=1A, CO=22µF, TA= 25unless otherwise specified. )
Characteristic
Output voltage
Line regulation
Load regulation
Output impedance
Quiescent current
Output noise
voltage
Ripple rejection
Long term
stability
Dropout voltage
Short circuit
current
Maximum line
transient
Reverse polarity
DC input voltage
Reverse polarity
transient input
voltage
Page3
Conditions
5mAIO1A
VO+2VVIN26V
IO =5mA
50mAIO1A
100mADC and
20mArms,
fO =120Hz
VO+2VVIN26V
IO =5mA
VIN=VO+5V
IO=1A
10Hz-100kHz,
IO =5mA
fO =120Hz,1Vrms
IO =100mA
fO =1kHz,1Vrms
IO =5mA
IO =1A
IO =100mA
RO =100
T100ms
RO =100
RO =100
T100ms
5V
Min. Typ. Max
6.25VVIN26V
4.85 5.00 5.15
20 50
35 50
35
10 15
30 45
150
60 72
60
20
0.5 0.8
110 150
1.6 1.9
60 75
-30 -15
-75 -50
www.belling.com.cn
8V
Min. Typ. Max
9.4VVIN26V
7.76 8.00 8.24
20 80
55 80
55
10 15
30 45
240
54 66
54
32
0.5 0.8
110 150
1.6 1.9
60 75
-30 -15
-75 -50
Unit
V
mV
mV
m
mA
mA
µVrms
dB
mV/
1000Hr
VMAX
mVMAX
A
V
V
V
V1.1










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