MC34844EP Datasheet, PDF (26/62 Pages) Freescale Semiconductor, Inc – 10 Channel LED Backlight Driver with Integrated Power Supply

MC34844
FUNCTIONAL DEVICE OPERATION
TYPICAL PERFORMANCE CURVES (TA=25°C)
50.0
45.0
50.01 mA
40.0
37.59 mA
35.0
30.0
25.0
25.03 mA
20.0
15.0
12.46 mA
10.0
5.0
0.0 ^{0.14 mA}
0.4%
25.0%
50.0%
PWM Duty Cycle (%)
FPWM=25KHz
75.0%
99.6%
Figure 11. PWM Dimming Linearity
10.10
10.08
10.06
10.04
10.02
10.00
9.98
9.96
9.94
I2C Mode
9.92
SM_Bus Mode
Manual Mode
9.90
15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
Vin, volts
Figure 12. Bias Current vs Input Voltage (Operational Mode)
Analog Integrated Circuit Device Data
Freescale Semiconductor
34844
26