LTC3207EUF#PBF Linear Technology, LTC3207EUF#PBF Datasheet - Page 12

• Manufacturer Part Number: LTC3207EUF#PBF
• Description: IC LED DRIVR QVGA DISPLAY 24-QFN
• Manufacturer: Linear Technology
• Type: QVGA Display (I²C Interface)r

Specifications of LTC3207EUF#PBF

• Topology: Step-Up (Boost), Switched Capacitor (Charge Pump)
• Number Of Outputs: 13
• Internal Driver: Yes
• Type - Primary: Backlight
• Type - Secondary: RGB, White LED
• Frequency: *
• Voltage - Supply: 2.9 V ~ 5.5 V
• Mounting Type: Surface Mount
• Package / Case: 24-QFN
• Operating Temperature: -40°C ~ 85°C
• Internal Switch(s): Yes
• Efficiency: 91%
• Operating Supply Voltage (typ): 3.3/5V
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Industrial
• Package Type: QFN EP
• Pin Count: 24
• Mounting: Surface Mount
• Operating Supply Voltage (min): 2.9V
• Operating Supply Voltage (max): 5.5V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Output: -
• Current - Output / Channel: -
• Lead Free Status / Rohs Status: Compliant

LTC3207/LTC3207-1
OPERATION
REG0, Command Byte.
Data Bytes
REG1 to REG12, Universal LED 6-bit linear DAC data with
blink/gradation.
12
Sub-Address 0001 TO 1100 per Sub-Address Table Above
Register Sub-Address = 0000
UP
Quick write
Force1p5
Force2x
Force1x
Reserved
Reserved
Reserved
CAMHL
Normal
Blink Enabled
Gradation Enabled
GPO Mode
(Gradation/Blink/Dropout Off)
CAMHL
MSB
D7
ULED Mode Enable Bits
0
1
0
1
1
0
1
0
X
X
X
0
1
Reserved
D6
Gradation counts down
Gradation counts up
Normal write to each register
Quick write, REG1 data is written to all twelve universal registers
Forces charge pump into 1.5x mode
Enables mode logic to control mode charges based on dropout signal
Forces charge pump into 2x mode.
Enables mode logic to control mode changes based on dropout signal
D2 (Force1p5x) = 1
D3 (Force2x) = 1
External control of CAM
I
2
C control of CAM
Reserved
D5
MSB
Bit 7
0
0
1
1
}
Forces Charge Pump Into 1x Mode
Reserved
Bit 6
0
1
0
1
D4
Bit 5
D5
D5
D5
D5
Force2x
D3
Bit 4
D4
D4
D4
D4
Force1p5
LED Current Data
Bit 3
D2
D3
D3
D3
D3
Bit 2
Quick write
D2
D2
D2
D2
D1
Bit 1
D1
D1
D1
D1
LSB
D0
UP
Bit 0
LSB
D0
D0
D0
D0
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