CM9330 Datasheet, PDF (3/10 Pages) California Micro Devices Corp – Asymmetrical High Efficiency Three Channel Boost LED Driver

Specifications (cont’d)
PRELIMINARY
CM9330
ELECTRICAL OPERATING CHARACTERISTICS ^{(SEE NOTE 1)}
V_IN = 3.6V; C_IN = 10μF, C_OUT = 1μF, L₁ = 4.7μH, interleave mode, T_A = 25°C (unless otherwise specified)
SYMBOL PARAMETER
CONDITIONS
MIN TYP
V_IN
I_Q
V_UVLO
V_OVP
I_SD
V_EN
Channel 1
I_LED1
Input Voltage Range
Quiescent Current
Undervoltage Lockout
Output Overvoltage Protection
Shutdown Current
Device Enable Threshold
LED Current (Note 1)
V_LED1
Channel 2
I_LED2
Number of LEDs (Note 2)
Voltage on LED1 Pin
LED Current (Note 1)
V_LED2
Channel 3
I_LED3
Number of LEDs (Note 2)
Voltage on LED2 Pin
LED Current (Note 1)
Number of LEDs (Note 2)
V_LED3
Voltage on LED3 Pin
Boost Circuit (Note 3)
ΔI_LED / I_LED ⋅ ΔV_IN Line Regulation
I_OUT
Boost Output Current
V_OUT
Boost Output Voltage
D
Duty Cycle Range
V_OUTR
R_DSON
Eff
I_SW
P_IN
Control
I_{LED acc}
Output Voltage Ripple
MOSFET ON Resistance
Efficiency
Switch Peak Current
Input Power
Channel Current Matching
(Note 4)
I_LED < 0.6mA (each channel), non-
switching
V_IN Rising
V_OUT Rising
V_EN = 0V
Device ON (by default)
Device OFF
2.7
1.2
2.0 2.2
19.0 19.5
10
1.0
V_IN = 3.0V to 6.0V, R_SET1(kΩ)
4 WLED
V_IN = 2.7V to 6.0V
Standard load (Note 3)
2
----4---5---0-----
R_SET1
1
0.80
V_IN = 3.0V to 6.0V, R_SET2(kΩ)
4 WLED
V_IN = 2.7V to 6.0V
Standard load (Note 3)
2
----4---5---0-----
R_SET2
1
0.80
V_IN = 3.0V to 6.0V, R_SET3(kΩ)
4 WLED
V_IN = 2.7V to 6.0V
Standard load (Note 3)
2
----4---5---0-----
R_SET3
1
0.80
V_IN = 3.0V to 6.0V Each Channel
V_IN = 3.0V to 6.0V
I_{LED 1,2,3} = 2mA to I_{LED MAX}
V_IN = 2.7V to 6.0V,
I_{LED 1,2,3} = 2mA to I_{LED MAX}
Standard Load (Note 3)
1
100
V_IN
5
50
I_SW = 0.8A, V_GS = 15V
300
Standard Load (Note 3)
85
Standard Load (Note 3)
0.65
I_{LED 1,2,3} = 20mA, 4WLED+1W+1W
835
1% R_SET Accuracy, Each Channel
3
MAX
6.0
2.0
UNIT
S
V
mA
2.4
V
20.0 V
15 μA
V
0.2
V
35 mA
5
V
30 mA
5
V
30 mA
5
V
%/V
mA
20
V
95
%
mVpp
500 mΩ
%
A
mW
%
© 2006 California Micro Devices Corp. All rights reserved.
04/26/06 490 N. McCarthy Blvd., Milpitas, CA 95035-5112 l Tel: [phone] l Fax: [phone] l www.cmd.com
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