PQ6CB11X1CP Sharp Microelectronics, PQ6CB11X1CP Datasheet - Page 4

• Manufacturer Part Number: PQ6CB11X1CP
• Description: IC LED DRIVER WHITE BCKLGT 6-SMD
• Manufacturer: Sharp Microelectronics
• Type: Backlight, White LEDr

Specifications of PQ6CB11X1CP

• Topology: Step-Up (Boost)
• Number Of Outputs: 1
• Internal Driver: Yes
• Type - Primary: Backlight
• Type - Secondary: White LED
• Frequency: 1MHz ~ 1.4MHz
• Voltage - Supply: 2.7 V ~ 5.5 V
• Voltage - Output: 30V
• Mounting Type: Surface Mount
• Package / Case: 6-SMD
• Operating Temperature: -40°C ~ 85°C
• Current - Output / Channel: 250mA
• Internal Switch(s): Yes
• Efficiency: 90%
• Number Of Segments: 6
• Operating Supply Voltage: 2.7 V to 5.5 V
• Maximum Power Dissipation: 350 mW
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 425-2645-2

■
This product monitors the switch current at every cycle and limits the switch current not to exceed the overcurrent
detection level.
Please set the white LED current under the maximum LED current shown in the graph indicated below within the
range of input voltage (V
Fig.6 Effciency vs. Input Voltage
Fig.8 On-Resistance vs. Junction
Fig.10 Use Range of White LED
Current-limit
100
4.0
3.5
2.0
1.5
1.0
0.5
140
120
100
5.0
4.5
3.0
2.5
95
90
85
80
75
70
65
60
Temperature
80
60
40
20
0
0
-50
2.5
3
Ta=25˚C
VF=3.8V(2～4LEDs)
VF=3.5V(6LEDs)
L=22μH
2LEDｓ
4LEDs
-25
Junction temperature Tj ( °C )
3.2
3
3LEDｓ
3LEDs
Input voltage V
0
3.4
3.5
2LEDs
25
IN
V
4LEDｓ
3.6
IN
) you use.
4
(V)
50
3.8
4.5
IN
V
V
I
6LEDｓ
SW
(V)
75
IN
SW
V
I
Ta=25 ˚C
=V
=250mA
O
=3.6V
F
=20mA
CTRL
=3.8V
100
4
5
=3.6V
4.2
125
5.5
4
Fig.7 Oscillation Frequency Fluctuation vs.
Fig.9 ON/OFF-state Voltage for Control vs.
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
-10
10
Junction Temperature
-5
0
-50
5
0
-50
Junction Temperature
-25
-25
Junction temperature Tj ( °C )
Junction temperature Tj ( °C )
0
0
25
25
50
50
V
3LEDs / 20mA
C
C
L=22μH
PQ6CB11X1CP
IN
IN
O
75
75
=0.1μF
=V
=2.2μF
V
3LEDs / 5mA
C
C
L=22μH
IN
IN
O
CTRL
=0.1μF
=3.6V
=2.2μF
100
100
Sheet No.: OP06061
=3.6V
125
125