CM9156B Datasheet, PDF (6/13 Pages) California Micro Devices Corp – Charge-Pump White LED Driver

Typical Performance Curves (cont’d)
C_IN=C_OUT=C₁=C₂=1.0μF, T_A=25ºC, unless specified
Vin = 3.8V
Vin = 3.8V
PRELIMINARY
CM9156B
Iout=120 mA
Iout=120 mA
Iout=60 mA
100 mV/div
Output Ripple, 262 kHz
Iout=60 mA
100 mV/div
Output Ripple, 650 kHz
Vin, 2V/div
Vout, 2V/div
Iin, 200 mA/div
Vin=3.8V 1 ms/div
Startup
Frequency Selection Table
Switching Frequency
262kHz
650kHz
CLK1
0
1
Table 1: Frequency Selection
© 2006 California Micro Devices Corp. All rights reserved.
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04/26/06