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PAM2803 Arkusz danych(PDF) 3 Page - Diodes Incorporated

Numer części PAM2803
Szczegółowy opis  3W HIGH POWER WHITE LED DRIVER
PDF  9 Pages
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Producent  DIODES [Diodes Incorporated]
Strona internetowa  http://www.diodes.com
Logo DIODES - Diodes Incorporated

PAM2803 Arkusz danych(HTML) 3 Page - Diodes Incorporated

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PAM2803
Document number: DS36400 Rev. 2 - 2
3 of 9
www.diodes.com
December 2014
© Diodes Incorporated
PAM2803
A Product Line of
Diodes Incorporated
Thermal Information
Parameter
Symbol
Package
Max
Unit
Thermal Resistance (Junction to Case)
θJC
SOT23-6
130
°C/W
Thermal Resistance (Junction to Ambient)
θJA
SOT23-6
250
Internal Power Dissipation
PD
SOT23-6
400
mW
Electrical Characteristics
(@TA = +25°C, VIN = 2.4V, ILED = 750mA, VSHDN = VIN, L = 2.2µH, CIN = 10µF, CO = 10µF, unless otherwise specified.)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Units
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 = 370mA
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
°C
Over Temperature Hysteresis
OTH
15
°C
Maximum Output Current Range
IO(MAX)
750
mA
Quiescent Current
IQ
ILED = 0mA, VO = 3.4V,
Device Switching @ 1MHz
1
3
mA
Shutdown Current
ISD
Shutdown Mode
1
µA
Switch On Resistance
RDS(ON)
VO = 3.4V
0.1
Ω
Current Limit
ILIM
VO = 3.4V
2
A
Efficiency
η
ILED = 750mA
90
%
Note:
1. VF
– LED forward voltage.



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