LP5521TM/NOPB National Semiconductor, LP5521TM/NOPB Datasheet - Page 7

• Manufacturer Part Number: LP5521TM/NOPB
• Description: IC LED DRIVER RGB 25-USMD
• Manufacturer: National Semiconductor
• Series: PowerWise®r
• Type: RGB LED Driverr

Specifications of LP5521TM/NOPB

• Constant Current: Yes
• Topology: PWM, Switched Capacitor (Charge Pump)
• Number Of Outputs: 3
• Internal Driver: Yes
• Type - Primary: Backlight, Light Management Unit (LMU)
• Type - Secondary: RGB
• Frequency: 1.25MHz
• Voltage - Supply: 2.7 V ~ 5.5 V
• Voltage - Output: 4.55V
• Mounting Type: Surface Mount
• Package / Case: 20-MicroSMD
• Operating Temperature: -30°C ~ 85°C
• Current - Output / Channel: 25.5mA
• Internal Switch(s): Yes
• Efficiency: 95%
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LP5521TMTR

I
I
I
I
f
V
LOGIC INPUT EN
V
V
I
t
LOGIC INPUT SCL, SDA, TRIG, CLK_32K
V
V
I
f
f
LOGIC OUTPUT SDA, TRIG, INT
V
I
LOGIC INPUT ADDR_SEL0, ADDR_SEL1
V
V
I
LOGIC OUTPUT GPO, INT (in GPO state)
V
V
I
LEAKAGE
MAX
OUT
MATCH
LED
Symbol
I
DELAY
I
CLK_32K
SCL
L
I
L
Symbol
SAT
IL
IH
IL
IH
OL
IL
IH
OL
OH
LED Driver Electrical Characteristics (R, G, B Outputs)
Logic Interface Characteristics
(V(EN) = 1.65V...V
Input Low Level
Input High Level
Logic Input Current
Input delay
Input Low Level
Input High Level
Input Current
Clock frequency
Clock frequency
Output Low Level
Output Leakage Current
Input Low Level
Input High Level
Input Current
Output Low Level
Output High Level
Output leakage current
R, G, B pin leakage current
Maximum Source Current
Accuracy of output current
Matching (Note 11)
LED PWM switching frequency
Saturation voltage (Note 12)
DD
unless otherwise noted)
Parameter
Parameter
Outputs R, G, B
Output current set to 17.5 mA, V
I
PWM_HF = 1
Frequency defined by internal oscillator
PWM_HF = 0
Frequency defined by 32 kHz clock (internal or
external)
I
OUT
OUT
I
I
I
OUT
OUT
OUT
= 17.5 mA, V
set to 17.5 mA
= 3 mA (pull-up current)
= 3 mA
= -2 mA
Conditions
7
DD
Condition
= 3.6V
DD
0.8xV(EN)
= 3.6V
V
0.8xV
DD
−1.0
–1.0
Min
-1.0
1.2
- 0.5
DD
V
Min
-4
-5
DD
Typ
0.3
0.3
32
2
- 0.3
25.5
Typ
558
256
0.1
50
1
0.2xV(EN)
0.2xV
Max
400
0.5
1.0
1.0
0.5
1.0
1.0
0.5
1.0
Max
100
DD
www.national.com
1
4
5
2
Units
Units
kHz
kHz
µA
µA
µA
µA
µA
µs
mA
mV
µA
Hz
Hz
V
V
V
V
V
V
V
V
V
%
%