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PAM2863 Datasheet(PDF) 4 Page - Diodes Incorporated

Part # PAM2863
Description  2A LED DRIVER with INTERNAL SWITCH
PDF  11 Pages
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Manufacturer  DIODES [Diodes Incorporated]
Direct Link  http://www.diodes.com
Logo DIODES - Diodes Incorporated

PAM2863 Datasheet(HTML) 4 Page - Diodes Incorporated

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PAM2863
Document number: DSxxxxx Rev. 1 - 0
4 of 11
www.diodes.com
October 2012
© Diodes Incorporated
PAM2863
A Product Line of
Diodes Incorporated
Thermal Information
Parameter
Package
Symbol
Max
Unit
Thermal Resistance (Junction to Ambient)
SOP-8(EP)
θJA
90
°C/W
Thermal Resistance (Junction to Case)
SOP-8(EP)
θJC
11
Electrical Characteristics (@TA = +25°C, VIN = 16V, unless otherwise specified.)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Units
Inout Voltage
VIN
4.5
40
V
Output Current
ILED
RS = 0.1Ω
1
A
RS = 0.05Ω
2
A
Shutdown Current
ISD
VSET Pin Grounded
20
40
µA
Quiescent Current without Switching
IQ
VSET Pin Floating, VIN = 16V
0.6
mA
Mean Current Sense Threshold Voltage
VSENSE
Measured on ISENSE Pin with
Respect to VIN
95
100
105
mV
Sense Threshold Hysteresis
VSENSE_HYS
±13
%
ISENSE Pin Input Current
ISENSE
VSENSE = VIN -0.1
8
µA
VSET Range on VSET Pin
VEN
For DC Dimming
0.3
2.5
V
DC Voltage on VSET Pin to Enable
VEN(ON)
VEN Rising
0.25
V
DC Voltage on VSET Pin to Disable
VEN(OFF)
VEN Falling
0.2
V
LX Switch on Resistance
RLX
@ILX = 100mA
0.3
Ω
LX Switch Leakage Current
ILX(LEAK)
5
µA
Soft-Start Time
TSS
VIN = 16V, CEN = 1nF
1.5
Ms
Operating Frequency
FLX
VIN = 16V, VO = 9.6V (3 LEDs),
L = 47µH, ΔI = 0.25A (ILED = 1A)
233
kHz
Recommended Minimum Switch ON Time
TON_REC
For 4% Accuracy
500
Ns
Recommended Maximum Switch Frequency
FLX(MAX)
1.0
MHz
Max Duty Circle
98
%
Recommended Duty Cycle Range
DLX
25
75
%
Internal Comparator Propagation Delay
TPD (Note 1)
45
Ns
Over Temperature Protection
TOTP
150
°C
Temp Protection Hysteresis
TOTP_HYS
40
°C
Current Limit
IXL(MAX)
Peak Inductor Current
2.5
A
Note:
1. VSENSE: LevelA: 95mV to 100mV; level B: 100mV to 105mV
Parameters are not tested at production, but guaranteed by design.



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