LP3950SL/NOPB National Semiconductor, LP3950SL/NOPB Datasheet - Page 3

• Manufacturer Part Number: LP3950SL/NOPB
• Description: IC LED DRVR WHITE BCKLGT 32-TSCP
• Manufacturer: National Semiconductor
• Series: PowerWise®r
• Type: Backlight, White LED (I²C Interface)r

Specifications of LP3950SL/NOPB

• Topology: PWM, Step-Up (Boost)
• Number Of Outputs: 6
• Internal Driver: Yes
• Type - Primary: Flash/Torch, LED Blinker, Light Management Unit (LMU)
• Type - Secondary: RGB, White LED
• Frequency: 2MHz
• Voltage - Supply: 2.7 V ~ 2.9 V
• Voltage - Output: 5V
• Mounting Type: Surface Mount
• Package / Case: 32-Laminate TCSP
• Operating Temperature: -40°C ~ 85°C
• Internal Switch(s): Yes
• Efficiency: 90%
• Led Driver Application: Mobile Phone Display Lighting, General LED Lighting
• No. Of Outputs: 6
• Output Current: 300mA
• Output Voltage: 5.3V
• Input Voltage: 3V To 7.2V
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output / Channel: -
• Other names: LP3950SL/CSP1; LP3950SLTR

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
PWM_LED
GND_RGB
SCK/SCL
AMODE
SS/SDA
IF_SEL
GNDA
Name
GND2
GND1
GND3
NRST
V
V
V
DME
V
V
ASE
AD1
AD2
SW
RT
SO
G2
G1
FB
DDIO
B2
R2
R1
B1
DDA
SI
DD2
DD1
REF
Logic Output
Logic Input
Logic Input
Logic Input
Logic Input
Logic Input
Logic Input
Logic Input
Logic I/O
Ground
Ground
Ground
Ground
Ground
Ground
Output
Output
Output
Output
Output
Output
Output
Output
Power
Power
Power
Power
Type
Input
Input
Input
Input
Input
Boost converter feedback.
Power switch ground.
Open drain, boost converter power switch.
Supply voltage for internal digital circuits.
Ground return for V
Default mode enable (internal pull down 1 MΩ).
Audio mode selection (internal pull down 1 MΩ).
Supply voltage for audio circuits.
Analog audio input, single-ended.
Analog audio input, differential.
Analog audio input, differential.
Ground for analog audio inputs.
Oscillator resistor.
Supply voltage for internal analog circuits.
Ground.
Internal reference bypass capacitor.
Ground.
Low active reset input.
SPI slave select/ I
SPI serial data output.
SPI serial data input.
SPI/ I
Direct PWM control for LEDs.
Supply voltage for logic IO signals.
SPI/I
Open drain output, blue LED2.
Open drain output, green LED2.
Open drain output, red LED2.
RGB driver ground.
Open drain output, red LED1.
Open drain output, green LED1.
Open drain output, blue LED1.
2
2
C select (IF_SEL = 1 in SPI mode).
C clock.
3
2
C data line.
DD2
(internal digital).
Description
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