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A8430 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - White LED Driver Constant Current Step-up Converter - Allegro MicroSystems

भाग संख्या A8430
समारोह White LED Driver Constant Current Step-up Converter
मैन्युफैक्चरर्स Allegro MicroSystems 
लोगो Allegro MicroSystems लोगो 
पूर्व दर्शन
1 Page
		
<?=A8430?> डेटा पत्रक पीडीएफ

A8430 pdf
A8430
White LED Driver Constant Current Step-up Converter
Functional Block Diagram
FB
SW
VIN VREF
1.25 V
95 mV
A1
EN
Enable
A2
RC
CC
Σ
Ramp
Generator
1.2 MHz
Oscillator
RQ
S
Driver
GND
ELECTRICAL CHARACTERISTICS at TA = 25°C, VIN = 3 V (unless otherwise noted)
Characteristics
Symbol
Test Conditions
Min.
Input Voltage Range
Supply Current
VIN
ISUP
Active: ILOAD = 15 mA,
VLOAD = 12 V
Shutdown (EN = 0 V)
2.5
Feedback Reference Voltage
Feedback Input Current
Switch Current Limit
Switch Frequency
Switch Maximum Duty Cycle
VREF
IFB
ISWLIM
FSW
D
86
0.8
85
Switch Saturation voltage
Switch Leakage Current
Enable Input
VCE(SAT)
ISL
Input Threshold Low
Input Threshold High
Input Leakage
VIL
VIH
Leakage
IIL
1.5
Typ.
2.5
0.1
95
20
300
1.2
90
350
Max.
10
3.5
1
104
75
1.6
5
Units
V
mA
µA
mV
nA
mA
MHz
%
mV
µA
0.4 V
–V
1 µA
Note 1. Measured with 4-layer PCB. Please refer to application note “Package Thermal Characteristics,“ for thermal perfor-
mance measurement for 3 mm x 3 mm MLP package for additional information.
www.allegromicro.com
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
2

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डाउनलोड[ A8430 Datasheet.PDF ]


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अनुशंसा डेटापत्रक

भाग संख्याविवरणविनिर्माण
A8430White LED Driver Constant Current Step-up ConverterAllegro MicroSystems
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A8431White LED Driver Constant Current Step-up ConverterAllegro MicroSystems
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