LP3933SLX National Semiconductor, LP3933SLX Datasheet - Page 3

• Manufacturer Part Number: LP3933SLX
• Description: IC LED DRVR WT/RGB BCKLGT 32TCSP
• Manufacturer: National Semiconductor
• Type: Backlight, White LED, RGB (Serial Interface)r

Specifications of LP3933SLX

• Constant Current: Yes
• Topology: PWM, Step-Up (Boost)
• Number Of Outputs: 12
• Internal Driver: Yes
• Type - Primary: Backlight, Flash/Torch, LED Blinker, Light Management Unit (LMU)
• Type - Secondary: RGB, White LED
• Frequency: 1MHz
• Voltage - Supply: 2.65 V ~ 2.9 V
• Voltage - Output: 5.3V
• Mounting Type: Surface Mount
• Package / Case: 32-Laminate TCSP
• Operating Temperature: -40°C ~ 85°C
• Current - Output / Channel: 120mA
• Internal Switch(s): Yes
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Efficiency: -

Pin Description
Pin #
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
1
2
3
4
5
6
7
8
9
GND_BOOST
GND_WLED
PWM_LED
GND_RGB
WLED1
WLED2
WLED3
WLED4
CLED1
CLED2
V
Name
GND2
GND1
GND3
NRST
GND4
V
V
V
SCK
SW
DD_IO
RT
SS
SO
G2
G1
FB
B2
R2
R1
B1
SI
DD2
DD1
REF
Logic Output
Logic Input
Logic Input
Logic Input
Logic Input
Logic Input
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Power
Power
Power
Type
Input
Input
Boost Converter Feedback
Power Switch Ground
Open Drain, Boost Converter Power Switch
Supply Voltage for Internal Digital Circuits
Ground Return for V
Open Drain, CLED1 Output
Open Drain, CLED2 Output
Ground for WLED and CLED Drivers
Open Drain, White LED1 Output
Open Drain, White LED2 Output
Open Drain, White LED3 Output
Open Drain, White LED4 Output
Oscillator Resistor
Supply Voltage for Internal Analog Circuits
Ground
Internal Reference Bypass Capacitor
Ground
Low Active Reset Input
SPI Slave Select
SPI Serial Data Output
SPI Serial Data Input
SPI Clock
LED Control for On/Off or Dimming Control
Supply Voltage for Logic IO Signals
Ground
Open Drain Output, Blue LED 2
Open Drain Output, Green LED 2
Open Drain Output, Red LED 2
RGB Driver Ground
Open Drain Output, Red LED 1
Open Drain Output, Green LED 1
Open Drain Output, Blue LED 1
3
DD2
(Internal Digital)
Description
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