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MCP1643 датащи(PDF) 2 Page - Microchip Technology

номер детали MCP1643
подробное описание детали  1 MHz Low Start-up Voltage Synchronous Boost LED Constant Current Regulator
PDF  28 Pages
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производитель  MICROCHIP [Microchip Technology]
домашняя страница  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MCP1643 датащи(HTML) 2 Page - Microchip Technology

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MCP1643
DS20005208B-page 2
 2013-2023 Microchip Technology Inc. and its subsidiaries
Typical Applications
10
100
1000
0.1
1
10
0.6
0.9
1.2
1.5
1.8
2.1
2.4
2.7
3
Input Voltage (V)
R
SET for ILED MIN
I
LED MIN
I
LED MAX
R
SET for ILED MAX
T
A = +25
oC
VIN
GND
VFB
COUT
4.7 µF
CIN
4.7...10 µF
L1
4.7 µH
SW
LED
4.7
EN
VOUT
+
-
ON
OFF
MCP1643
ILED =25mA
RSET
VIN
GND
VFB
COUT
20 µF
CIN
4.7...10 µF
L1
4.7 µH
SW
WHITE LED
0.33
EN
VOUT
+
-
ON/OFF
MCP1643
ILED = 360 mA
RSET
+
-
1M
REN
ILED
0.12V
RSET
-----------------
=
RSET Minimum and Maximum Limits for ILED in Regulation, with ±6% Tolerance
WHITE LED
ILED MAX
ILED MIN



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