LDS8681008-T2 IXYS, LDS8681008-T2 Datasheet - Page 2

• Manufacturer Part Number: LDS8681008-T2
• Description: IC LED DRIVER PHOTO FLASH 16WQFN
• Manufacturer: IXYS
• Series: PowerLite™r
• Type: Photo Flash LEDr

Specifications of LDS8681008-T2

• Topology: Linear (LDO), PWM, Switched Capacitor (Charge Pump)
• Number Of Outputs: 2
• Internal Driver: Yes
• Type - Primary: Flash/Torch
• Type - Secondary: High Brightness LED (HBLED)
• Voltage - Supply: 2.7 V ~ 5.5 V
• Mounting Type: Surface Mount
• Package / Case: 16-WQFN, 16-miniQFN
• Current - Output / Channel: 400mA
• Internal Switch(s): Yes
• Efficiency: 90%
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Output: -
• Frequency: -
• Operating Temperature: -
• Other names: LDS8681-002-T6; LDS8681-002-T6-2; LDS8681-002-T6-2; LDS8681008-T2-2

LDS8681
ABSOLUTE MAXIMUM RATINGS
RECOMMENDED OPERATING CONDITIONS
Typical application circuit with external components is shown on page 1.
ELECTRICAL OPERATING CHARACTERISTICS
Note:
© 2009 IXYS Corp.
Characteristics subject to change without notice
(Over recommended operating conditions unless specified otherwise) V
VIN, LEDx, C1± voltage
V
EN/SET voltage
Storage Temperature Range
Junction Temperature Range
Soldering Temperature
VIN
Ambient Temperature Range
Name
Standby Current
Shutdown Current
LED Current Accuracy
LED Channel Matching
Output Resistance (open loop)
Charge Pump Frequency
Output short circuit Current Limit
Input Current Limit
1-x to 2-x
Transition Thresholds at any LED pin
Transition Filter Delay
EN/SET
Pin
Thermal Shutdown
Thermal Hysteresis
Under Voltage Lockout (UVLO)
Threshold
Output Over Voltage protection
Flash LED Turn-on Time
PWM Frequency
OUT
voltage
1. Sample test only
2. Measusured from EN LOW to HIGH transition to I
3. See Current setting Error vs. Duty Cycle and PWM Frequency at p.3
Input current
Logic Level
3
Parameter
Parameter
1
1
2
High
Low
1-x mode
2-x mode
1
EN = 1.4 V, V
Conditions
V
1mA ≤I
(I
1-x mode
2-x mode
V
LED
EN
OUT
= 0V
LED
- I
< 0.5V
At 200 mA
LEDAVG
current reaches 90% of regulated level
LED
2
-65 to +160
-40 to +125
V
-40 to +85
2.7 to 5.5
≤400 mA
Rating
IN
Rating
IN
IN
) / I
= 3.6V, C1 = 2.2 µF, Cin = Cout = 1 µF, EN = High, T
300
+ 0.7V
6
6
= 5.5 V
LEDAVG
Min
1.4
5.6
0.1
Unit
Unit
°C
°C
°C
°C
V
V
V
V
Typ
±8
±8
150
800
160
100
0.6
0.5
0.5
1.7
2.3
1.2
25
1
2
2
1
Max
0.4
5.9
Doc. No. 8681_DS, Rev. N1.0
1
Units
MHz
kHz
mA
mV
µA
µA
ms
µs
°C
µs
%
%
Ω
A
A
V
V
V
AMB
= 25°C