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PAM2803 数据表(PDF) 3 Page - Power Analog Micoelectronics

部件名 PAM2803
功能描述  3W High Power White LED Driver
PDF  8 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  PAM [Power Analog Micoelectronics]
网页  http://www.poweranalog.com
标志 PAM - Power Analog Micoelectronics

PAM2803 数据表(HTML) 3 Page - Power Analog Micoelectronics

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3
Electrical Characteristic
T =25
, V =2.4V, I
=750mA, V
= V , L=2.2uH, C =10uF, C =10uF, unless otherwise noted.
A
IN
LED
SHDN
IN
ΙΝ
O
℃
Note1: V - LED Forward Voltage
F
08/2007
PAM2803
3W High Power White LED Driver
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
Input Voltage Range
VIN
0.9
VF-0.2
(note 1)
V
Feedback Voltage
VFB
90
95
100
mV
Start-up Voltage
VSTART
VIN:0V
→3V
ILED=270mA
0.9
V
Hold Voltage
VHOLD
VIN:3V
→0V
ILED:750mA
→200mA
0.75
V
Oscillator Frequency
FOSC
0.85
1.0
1.15
MHz
SHDN Input High
VSH
VIN=1.8V
1.0
V
SHDN Input Low
VSL
VIN=1.8V
0.4
V
Over Temperature Shutdown
OTS
150
℃
Over Temperature Hysteresis
OTH
15
℃
Maximum Output Current
Range
IO(MAX)
750
mA
Quiescent Current
IQ
ILED=0mA, VO=3.4V,
Device Switching at 1MHz
13
mA
Shutdown Current
ISD
Shutdown mode
1
uA
Switch on Resistance
RDSON
VO=3.4V
0.1
Ω
Current Limit
ILIM
VO=3.4V
2
A
Efficiency
η
ILED=750mA
90
%
,
Power Analog Microelectronics Inc
www.poweranalog.com



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