LP3950SL/NOPB National Semiconductor, LP3950SL/NOPB Datasheet - Page 12

• 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

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I
NOTE: Data guaranteed by design
2
C Compatible Interface
(V
Symbol
DD1
C
10
1
2
2
3
3
4
5
5
6
7
8
9
b
= V
DD2
= V
Hold Time (repeated) START Condition
Clock Low Time (1.65V ≤ V
Clock Low Time (1.80V ≤ V
Clock High Time (1.65V ≤ V
Clock High Time (1.80V ≤ V
Setup Time for a Repeated START Condition
Data Hold Time (data output, delay generated by LP3950)
Data Hold Time (data input)
Data Setup Time
Rise Time of SDA and SCL
Fall Time of SDA and SCL
Set-up Time for STOP condition
Bus Free Time between a STOP and a START Condition
Capacitive Load Parameter for Each Bus Line.
Load of One Picofarad Corresponds to One Nanosecond.
DDA
= 2.70V to 2.90V, V
(Continued)
Parameter
DDIO
FIGURE 10. I
DDIO
DDIO
DDIO
DDIO
FIGURE 9. I
I
= 1.65V to V
2
C Timing Parameters
≤ V
<
≤ V
<
1.80V)
1.80V)
DD1,2
DD1,2
2
C Timing Diagram
V)
2
V)
12
C Read Cycle
DD1,2
V)
20+0.1C
15+0.1C
1200
Min
600
600
300
100
600
0.6
3.2
1.3
1.3
10
0
Limit
b
b
Max
900
900
300
300
200
20129341
20129314
Units
µs
µs
µs
ns
ns
ns
ns
ns
ns
ns
ns
ns
µs
ns