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PAM2842 Datasheet(PDF) 5 Page - Diodes Incorporated

Part # PAM2842
Description  HIGH POWER LED DRIVER
PDF  17 Pages
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Manufacturer  DIODES [Diodes Incorporated]
Direct Link  http://www.diodes.com
Logo DIODES - Diodes Incorporated

PAM2842 Datasheet(HTML) 5 Page - Diodes Incorporated

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PAM2842
Document number: DSxxxxx Rev. 1 - 2
5 of 17
www.diodes.com
October 2012
© Diodes Incorporated
PAM2842
A Product Line of
Diodes Incorporated
Electrical Characteristics (cont.) (@TA = +25°C, VEN = VDD = 24V, 1W x 10 LEDs, unless otherwise specified.)
Parameter
Test Conditions
Min
Typ
Max
Units
LDO Stage
VDD_5V
No Switching
4.5
5
5.5
V
VDD_5V Current Limit
No Switching
14
74
90
mA
VDD_5V UVLO Threshold
No Switching
3.7
4.0
4.3
V
VDD_5V UVLO Hysteresis
No Switching
200
mV
VDD_DR
No Switching
4.5
5
5.5
V
VDD_DR Current_Limit
No Switching
14
50
90
mA
VDD_DR UVLO Threshold
No Switching
3.7
4.0
4.3
V
Switch Stage
Switch RDS(ON)
VDD_5V = 5V
0.1
Ω
Switch Current Limit
3.5
A
Switch Leakage Current
50
µA
RT Voltage
RRT = 71kΩ
1.1
1.2
1.3
V
Switching Frequency (Note 2)
RRT = 30kΩ
800k
1M
1.2M
Hz
RRT = 71kΩ
400
500
600
kHz
RRT = 180kΩ
160
200
240
kHz
Min Duty Cycle
FSW = 1MHz
10
%
FSW = 500kHz
5
%
FSW = 200kHz
2.5
%
Max Duty Cycle
Low Side Sense
95
%
High Side Sense
100
%
VC Source Current
Feedback Voltage = 0
30
µA
VC Sink Current
Feedback Voltage = 0
30
µA
Fault Protection
OV Threshold Voltage
1.1
1.2
1.3
V
OV Hysteresis
70
mV
Thermal Shutdown
150
°C
Thermal Shutdown Hysteresis
30
°C
Control Interface
EN High
1.5
V
EN Low
0.4
V
Note:
2. Switching frequency
)
k
12
R
(
x
24
10
F
RT
12
SW
+
=
, reference value.



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