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LDS8868 Datasheet(PDF) 2 Page - IXYS Corporation

Part No. LDS8868
Description  6-Channel Ultra Low Dropout LED Driver
Download  14 Pages
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Manufacturer  IXYS [IXYS Corporation]
Direct Link  http://www.ixys.com
Logo IXYS - IXYS Corporation

LDS8868 Datasheet(HTML) 2 Page - IXYS Corporation

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LDS8868
© 2009 IXYS Corp.
2
Doc. No. 8868_DS, Rev. N2.1
Characteristics subject to change without notice
ABSOLUTE MAXIMUM RATINGS
Parameter
Rating
Unit
VIN, LEDx, C1±, C2± voltage
6
V
VOUT voltage
6
V
EN/SET voltage
VIN + 0.7V
V
Storage Temperature Range
-65 to +160
°C
Junction Temperature Range
-40 to +125
°C
Soldering Temperature
300
°C
RECOMMENDED OPERATING CONDITIONS
Parameter
Rating
Unit
VIN
2.7 to 5.5
V
Ambient Temperature Range
-40 to +85
°C
Typical application circuit with external components is shown on page 1.
ELECTRICAL OPERATING CHARACTERISTICS
(Over recommended operating conditions unless specified otherwise) VIN = 3.6V, C1 = C2 = 0.22 µF, CIN = COUT = 1 µF, EN = High, TAMB = 25°C
Name
Conditions
Min
Typ
Max
Units
Quiescent Current
1x mode, no load
1.7
2.5
mA
Shutdown Current
VEN = 0V
1
µA
LED Current Accuracy
1mA
≤I
LED ≤31mA
-5
±3
+5
%
LED Channel Matching
(ILED - ILEDAVG) / ILEDAVG
-5
±3
+5
%
1x mode
0.8
1.5x mode
5.5
Output Resistance (open loop)
2x mode
6.5
Ω
Charge Pump Frequency
1.5x mode and 2x mode
1.1
MHz
Output short circuit Current Limit
VOUT < 0.5V
35
mA
Input Current Limit
450
mA
1x to 1.5x, or 1.5x to 2x
Transition Thresholds at any LED pin
75
130
mV
1.5x to 1x Mode Transition Hysteresis
600
mV
Transition Filter Delay
1
800
µs
Input Leakage
-1
1
µA
High
1.3
EN/DIM
Pin
Logic Level
Low
0.4
V
Thermal Shutdown
1
150
Thermal Hysteresis
1
20
°C
Under Voltage Lockout (UVLO)
Threshold
2.2
V
Over Voltage Protection
1
6.2
V
NOTE:
1.Sample test only


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