PAM2846 Datasheet, PDF (9/14 Pages) Power Analog Micoelectronics – Integrated 6 String LED Boost Type Driver

PAM2846
Integrated 6 String LED Boost Type Driver
Typical Performance Characteristic
T_A=25°C, V = _IN ENA=12V, Rset=10kΩ, L=22μH, Fsw=500kHz, 10x6 LEDs, unless otherwise noted.
PWM Dimming (Duty Cycle=20%)
LED Current Waveforms (PWMD=50%)
PWMD
DC
coupling
V_LED1
DC
coupling
PWMD
DC
coupling
V_LED1
DC
coupling
I_LED
DC
coupling
I_LED
DC
coupling
LED Current Waveforms (PWMD=80%)
PWMD
DC
coupling
V_LED1
DC
coupling
I_LED
DC
coupling
Startup Waveforms
Vout
DC
coupling
I_L
DC
coupling
ENA
DC
coupling
Start up and Shutdown Waveforms
Vout
DC
coupling
I_L
DC
coupling
ENA
DC
coupling
Stable Operation
Vsw
DC
coupling
I_L
DC
coupling
Power Analog Microelectronics,Inc
www.poweranalog.com
9
07/2008 Rev 1.2