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HV9921 数据表(PDF) 9 Page - Microchip Technology

部件名 HV9921
功能描述  3-Pin Switch-Mode LED Lamp Driver ICs
PDF  19 Pages
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制造商  MICROCHIP [Microchip Technology]
网页  http://www.microchip.com
标志 MICROCHIP - Microchip Technology

HV9921 数据表(HTML) 9 Page - Microchip Technology

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 2014 Microchip Technology Inc.
DS20005311A-page 9
HV9921/HV9922/HV9923
4.3.1.6
Step 6. Selecting input capacitor CIN
Select CIN ECQ-E4104KF by Panasonic® (0.1μF,
400V, Metalized Polyester Film).
FIGURE 4-2:
UNIVERSAL 85-264VAC LED LAMP DRIVER
FIGURE 4-3:
TYPICAL EFFICIENCY
FIGURE 4-4:
SWITCH-OFF TRANSITION
Ch1:VDRAIN, Ch3: IDRAIN
OutputPower 41V 20mA 820mW
=
=
C
IN
AC Line
85-265V
C
DD
3
HV9921/22/23
D1
L1
LED
1 - LED12
D2
D3
D4
D5
C
IN2
L
IN
VRD1
F1
C
O
VDD
DRAIN
GND
1
2
75
100
125
150
175
200
225
250
275
82
80
78
76
74
72
70
68
66
64
62
Input AC Line Voltage (VAC)
ZERO VOLTAGE
TRANSITION



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