Manual

6
Jan. 2013 Rev. 1. 8 BCD Semiconductor Manufacturing Limited
4-Channel Charge Pump LED Driver with Current Balancing and Wide Range PWM Dimming AP3605
Data Sheet
(V
IN
=3.5V, V
EN
=V
IN
, R
ISET
=1.8kΩ, C
FLY1
=C
FLY2
=C
IN
=C
OUT
=1μF, T
A
=25
o
C, V
D1
=V
D2
=V
D3
=V
D4
=3.4V, unless
otherwise specified. V
OUT
is the output voltage when VOUT1 and VOUT2 are connected.)
Typical Performance Characteristics
Figure 4. Supply Current vs. Junction Temperature Figure 5. Supply Current vs. Input Voltage
-50 -25 0 25 50 75 100 125 150
0.75
0.80
0.85
0.90
0.95
1.00
1.05
1.10
1.15
1.20
1.25
V
IN
=3.5V
Frequency (MHz)
Junction Temperature (
O
C)
Figure 6. Frequency vs. Junction Temperature Figure 7. Reference Voltage vs. Junction Temperature
-50 -25 0 25 50 75 100 125 150
0.9
1.0
1.1
1.2
1.3
1.4
1.5
1.6
Supply Current (mA)
Junction Temperature (
O
C)
V
IN
=3.5V, No Load, R
ISET
Open
2.53.03.54.04.55.05.5
0.90
0.95
1.00
1.05
1.10
1.15
1.20
1.25
1.30
Supply Current (mA)
Input Voltage (V)
R
ISET
Open
-50 -25 0 25 50 75 100 125 150
1.210
1.215
1.220
1.225
1.230
1.235
1.240
1.245
1.250
V
ISET
(V)
Junction Temperature (
O
C)