LP3361-QVF POWER [Lowpower Semiconductor inc], LP3361-QVF Datasheet

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LP3361-QVF

Manufacturer Part Number
LP3361-QVF
Description
6-Channel Constant Current White LED Driver
Manufacturer
POWER [Lowpower Semiconductor inc]
Datasheet
General Description
The LP3361 is a low-dropout bias supply for white LEDs is
a high-performance alternative to the simple ballast
resistors used in conventional white LED designs. It
supports 6 white LEDs with regulated constant current for
uniform intensity. The LP3361 maintains low dropout
current regulators. The LP3361 requires a 45mV dropout
at a 20mA load on each output to match the LED brightness.
The brightness of LEDs can be tuned through a pulse width
modulated signal at the PWM pin,the PWM frequency from
200Hz to 10KHz and the Duty from 0 to 100%.
The LP3361 is available in a TDFN-10 package.
Order Information
Applications
LP3361 – Ver. 1.0 Datasheet
LP3361 -
LCD Panel
Cellular and Smart mobile phone
PDA/DSC
PMP
□ □ □
6-Channel Constant Current White LED Driver
Nov.-2008
Package Type
QV:TDFN-10
Preliminary Datasheet
F: Pb-Free
Typical Application Circuit
Features
Marking Information
Please see website.
VBAT
ON/OFF
2.7V to 6V Input Voltage
20mA maxim sink current
Dual Panel Driver of WLED
PWM tuned LED brightness through EN pin
Soft Start Function
Built-in Thermal Protection
I
TDFN-10 Package
RoHS Compliant and 100% Lead (Pb)-Free
Q
<1uA in Shutdown
11
3
8
2
7
VDD1
VDD2
EN1
EN2
GND
LP3361
LED1
LED2
LED3
LED4
LED5
LED6
1
4
5
6
9
10
LP3361
Page 1 of 6
Main_Panel
Sub_Panel
2.2uF
VBAT

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LP3361-QVF Summary of contents

Page 1

... Constant Current White LED Driver General Description The LP3361 is a low-dropout bias supply for white LEDs is a high-performance alternative to the simple ballast resistors used in conventional white LED designs. It supports 6 white LEDs with regulated constant current for uniform intensity. The LP3361 maintains low dropout current regulators ...

Page 2

... LED6 LP3361 Driver 4pcs White-LED Application LP3361 – Ver. 1.0 Datasheet Nov.-2008 Preliminary Datasheet VBAT VBAT Backlight_CTRL ON OFF Key Pad_CTRL 2.2uF LP3361 Driver Panel and Keypad WLED Application VBAT VBAT ON/OFF NC 2.2uF LP3361 Driver 6pcs White-LED Application VBAT VBAT ON/OFF NC 2.2uF ...

Page 3

... LED2 cathode terminal. 20mA Current flows into LED. Floating is used to disable. 10 LED6 LED2 cathode terminal. 20mA Current flows into LED. Floating is used to disable. 11 GND Gound. LP3361 – Ver. 1.0 Datasheet Nov.-2008 Preliminary Datasheet LED1 1 EN1 ...

Page 4

... V IN Quiescent Current I Q Shutdown Current I SHDN LED Current Accuracy I LED-ERR LED Channel Matching I LED-LED-ERR Enable Threshold Low V EN(L) Enable Threshold High V EN(H) LP3361 – Ver. 1.0 Datasheet Nov.-2008 Preliminary Datasheet VDD2 ---------------------------------------------------------------------- 6. ---------------------------------------------------------------------- -0. -------------------------------------------------- - DFN-10 ---------------------------------------------------------------- 1.5W D ------------------------------------------------------------------------------------ 58 Conditions No Load GND 3mA< I 30mA LED< Any two channel mismatch LP3361 ℃ ...

Page 5

... Typical Operating Characteristics LP3361 – Ver. 1.0 Datasheet Nov.-2008 Preliminary Datasheet LP3361 Page ...

Page 6

... Packaging Information LP3361 – Ver. 1.0 Datasheet Nov.-2008 Preliminary Datasheet LP3361 Page ...

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