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MIC2874YCS датащи(PDF) 4 Page - Micrel Semiconductor

номер детали MIC2874YCS
подробное описание детали  1.2A High-Brightness Flash LED Driver with Single-Wire Serial Interface
PDF  22 Pages
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производитель  MICREL [Micrel Semiconductor]
домашняя страница  http://www.micrel.com
Logo MICREL - Micrel Semiconductor

MIC2874YCS датащи(HTML) 4 Page - Micrel Semiconductor

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Micrel, Inc.
MIC2874
Electrical Characteristics
(6) (Continued)
VIN = 3.6V; L = 0.47µH; COUT = 4.7µF, IOUT = 100mA, TA = 25°C, bold values indicate –40°C
≤ TJ ≤ +125°C, unless otherwise noted.
Symbol
Parameter
Condition
Min.
Typ.
Max.
Units
TSD
Overtemperature
Shutdown Threshold
155
°C
Overtemperature
Shutdown Hysteresis
15
°C
TTO
Safety Timeout Shutdown
Default timer setting
1.25
s
ITO
Safety Timer Current
Threshold
Default current threshold setting
250
mA
VLBVD
Low-Battery Voltage
Detection Threshold
Default LBVD threshold setting
3.0
V
Low-Battery Voltage
Detection Threshold
Accuracy
All low-battery voltage detection threshold
settings
50
mV
VSHORT
LED Short-Circuit
Detection Voltage
Threshold
VOUT - VLED
1.55
1.7
1.85
V
ITEST
LED Short-Circuit
Detection Test Current
1.6
2
2.7
mA
Current Sink Channel
Channel Current Accuracy
VOUT = 4.2V, ILED = 0.20A
−6
6
%
VOUT = 4.2V, ILED = 1.0A
-8
8
VLED
Current Sink Voltage
Dropout
Boost mode
250
mV
FEN Control Pin
VFEN
FEN Threshold Voltage
FLASH ON
1.3
V
FLASH OFF
0.6
FEN Pull-down Current
VFEN = 5.5V
1.3
5
µA
Electrical Characteristics
̶ Single-Wire Interface (Guaranteed by Design)
VIN = 3.6V; L = 0.47µH; COUT = 4.7µF, IOUT = 100mA, TA = 25°C, bold values indicate –40°C
≤ TJ ≤ +125°C, unless otherwise noted.
Symbol
Parameter
Condition
Min.
Typ.
Max.
Units
VDC
LOW-Level Input Voltage
0.4
V
HIGH-Level Input Voltage
1.3
V
DC Pull-Down Current
VDC = 5.5V
2.8
5
µA
TON
ON Time
0.1
72
µs
TOFF
OFF Time
0.1
72
µs
TLAT
Latch Time
97
324
µs
TEND
END Time
405
µs
August 26, 2014
4
Revision 1.0



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