LP3944ISQEV National Semiconductor, LP3944ISQEV Datasheet - Page 11

• Manufacturer Part Number: LP3944ISQEV
• Description: BOARD EVALUATION LP3944ISQ
• Manufacturer: National Semiconductor
• Series: PowerWise®r

Specifications of LP3944ISQEV

• Current - Output / Channel: 25mA
• Outputs And Type: 8, Non-Isolated
• Features: Dimmable, I²C Interface
• Voltage - Input: 2.3 ~ 5.5 V
• Utilized Ic / Part: LP3944
• Core Chip: LP3944
• No. Of Outputs: 8
• Output Current: 25mA
• Dimming Control Type: I2C
• Kit Contents: Board, User Guide
• Development Tool Type: Hardware - Eval/Demo Board
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• Voltage - Output: -

Application Notes
REDUCING I
In many applications, the LEDs and the LP3944 share the
same V
When the LEDs are off, the LED pins are at a lower potential
DD
, as shown in Section Typical Application Circuit.
Q
WHEN LEDS ARE OFF
(Continued)
FIGURE 9. Methods to Reduce I
Application Circuit
11
than V
this current, consider keeping the LED pins at a voltage
equal to or greater than V
Q
When LEDs Are Off
DD
, causing extra supply current (∆I
DD
20085315
.
20085314
Q
). To minimize
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