LP5526TLEV National Semiconductor, LP5526TLEV Datasheet - Page 6

• Manufacturer Part Number: LP5526TLEV
• Description: BOARD EVAL LP5526 LMU LED DRIVER
• Manufacturer: National Semiconductor
• Series: PowerWise®r

Specifications of LP5526TLEV

• Current - Output / Channel: 150mA
• Outputs And Type: 2 (25mA), 1 (150mA)
• Voltage - Output: 20 V
• Features: Camera Flash, Dimmable, RGB Controller
• Voltage - Input: 3 ~ 5.5V
• Utilized Ic / Part: LP5526
• Lead Free Status / RoHS Status: Not applicable / Not applicable

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Jumpers and Settings
The following tables summarize the jumpers and proper settings.
Recommended settings for power supply selecting jumpers
Jumper
J6-J8
J17
J19
J21
J25
J22-J24
J26
Jumper Name Jumper #
V
V
V
BATT
DD
DDIO
Purpose
Shorting jumpers for current limiting resistors
Choose power supply V
Choose V
from USB
Choose V
interface board
Power for RGB LED
Choose FLASH or RGB LED use
Choose RGB current
J17
J19
J21
DDIO
DD
voltage = V
voltage = External voltage or USB
Power Connection
EXT position. Use with USB only is not recommended when high loads are used.
USB position
0 USB position
- EXT position only if external I/O power connected
BATT
BATT
= USB or External USB has very limited current capability. External
or regulated 3.3V
6
Note
If jumpers J6-J8 are set, current sink mode for
RGB must be set in LP5526.
power connection to X1 connector
recommended when high loads are used.
USB recommended.
USB unless external IO voltage connected to X1
connector.
RGB led uses voltage (5V) from USB interface
board.
If jumper is set, the maximum RGB current is 50
mA/output (Rrgb = 2.4 kΩ). If jumper is off, the
maximum RGB current is 21 mA/output (Rrgb =
5.7 kΩ)