LTC3205EUF#PBF Linear Technology, LTC3205EUF#PBF Datasheet - Page 14

• Manufacturer Part Number: LTC3205EUF#PBF
• Description: IC LED DRVR WT/RGB BCKLGT 24-QFN
• Manufacturer: Linear Technology
• Type: Backlight, White LED, RGB (Serial Interface)r

Specifications of LTC3205EUF#PBF

• Topology: PWM, Step-Down (Buck), Step-Up (Boost), Switched Capacitor (Charge Pump)
• Number Of Outputs: 9
• Internal Driver: Yes
• Type - Primary: Backlight
• Type - Secondary: RGB, White LED
• Frequency: 600kHz ~ 1.1MHz
• Voltage - Supply: 2.8 V ~ 4.5 V
• Mounting Type: Surface Mount
• Package / Case: 24-QFN
• Operating Temperature: -40°C ~ 85°C
• Current - Output / Channel: 250mA
• Internal Switch(s): Yes
• Efficiency: 92%
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Output: -

LTC3205
14
TYPICAL APPLICATIO S
I
RGB
13
LTC3205
16.6k
GREEN
MAIN1
MAIN2
MAIN3
MAIN4
I
MS
SUB1
SUB2
BLUE
CPO
RED
14
I
RGB
24.9k
13
LTC3205
24.9k
2
1
24
23
22
21
18
19
20
15
GREEN
MAIN1
MAIN2
MAIN3
MAIN4
I
WHITE
MS
SUB1
SUB2
BLUE
CPO
RED
14
12.4k
All Charge Pump Main, Sub, RGB and Camera Light Controller
15
2
1
24
23
22
21
18
19
20
MAIN DISPLAY
WHITE
U
WHITE
Ultralow Brightness MAIN and SUB Displays
WHITE
CAMERA LIGHT
1 F
WHITE
10
LTC3205
4
1
Main, Sub and Keypad Illumination
V
D0
D1
8
C1
IN
I
RGB
I
MS
+
WHITE
1 F
LTC3202
WHITE
C1
14
13
7 9
–
C2
+
1 F
24.9k
SUB DISPLAY
V
GND
C2
WHITE
OUT
FB
WHITE
6
–
I
LED
3
2
5, 11
24.9k
= 40mA
487k
(DUTY CYCLE = 50%)
WHITE
WHITE
30
SUB DISPLAY
3205 TA08
WHITE
MAIN DISPLAY
WHITE
PWM SIGNAL
0V TO 1.3V OR HIGHER
50Hz TO 15kHz
BRIGHTNESS = 1 – D
BRIGHT DIM
30
BLUE
39
WHITE
I
LED
= 20mA
WHITE
30
BLUE
39
RED
WHITE
3205 TA02
30
BLUE
39
ILLUMINATOR
KEYPAD
GREEN
BLUE
1 F
39
BLUE
BLUE
39
3205 TA03
1 F
BLUE
39
1 F
3205f