T6313A, T6315A, T6315B Selling Leads, Datasheet
MFG:TEMTECH D/C:07+
T6313A, T6315A, T6315B
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Info of T6313A
Info of T6315A
Info of T6315B
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About T6313A
PDF/DataSheet Download
Datasheet: T6313A
File Size: 101632 KB
Manufacturer: Taiwan Memory Technology
Download : Click here to Download
About T630
PDF/DataSheet Download
Datasheet: T630
File Size: 95009 KB
Manufacturer: POWEREX [Powerex Power Semiconductors]
Download : Click here to Download
About T630
PDF/DataSheet Download
Datasheet: T630
File Size: 95009 KB
Manufacturer: POWEREX [Powerex Power Semiconductors]
Download : Click here to Download
T6313A General Description
The T6313A is a charge pump DC/DC converter driving a constant current up to 20mA for each LED of total four LEDs. It is a high efficiency device that is up to 93%, and it would be a suitable driving device for LED back light application. The T6313A operates in a 1.5x charge pump mode based on input voltage from 2.7v to 5.5v. Operation frequency is at fixed high frequencies either 500KHz or 1MHz typically. It can drive 4 white LEDs connected in parallel and provides tightly matched regulated current to achieve uniformity of brightness in LCD backlighting applications.
The T6313A uses two input pins to enable, disable, and set the LED drive current for one of 32 levels of brightness. Also has a built-in softstart circuitry to prevent excessive inrush current during start-up. A very low shutdown current feature and a low quiescent current will consume very little power and allow the device to operate in a very high efficiency. The T6313A is available in 16-pin QFN packages.
T6313A Maximum Ratings
IN, OUT, EN to GND........................-0.3V to 6V
LED1 ~4 to GND ................-0.3V to (Vin+0.3V)
Operating Temperature............... -40 to 85°C
Storage Temperature.................-40 to 150°C
LED1 ~4 to GND ................-0.3V to (Vin+0.3V)
Operating Temperature............... -40 to 85°C
Storage Temperature.................-40 to 150°C
T6313A Features
• 20mA Full Scale Current for each LED
• Power efficency up to 93%
• 32 levels for brightness
• 2 wires interface
• Low Noise Constant Frequency Operation
• High Accuracy Brightness Matching
• White LED Backlighting
• 0.5% LED current matching
• Automatic Soft-Start
• No External Inductors, Schottky, or Zener Diode and Resistor Required
• 500KHz Switching Frequency (1MHz optional)
• 2.7V to 5.5V supply voltage
• Shutdown current is less 1uA
• Temperature Range -40 to 85°C
• 16-Pin QFN
• Power efficency up to 93%
• 32 levels for brightness
• 2 wires interface
• Low Noise Constant Frequency Operation
• High Accuracy Brightness Matching
• White LED Backlighting
• 0.5% LED current matching
• Automatic Soft-Start
• No External Inductors, Schottky, or Zener Diode and Resistor Required
• 500KHz Switching Frequency (1MHz optional)
• 2.7V to 5.5V supply voltage
• Shutdown current is less 1uA
• Temperature Range -40 to 85°C
• 16-Pin QFN
T6313A Typical Application
· Cellular Phones
· Portable Communication Devices
· Handheld devices
· Digital Cameras
· PDAs
· LED/Display Back Light Driver
· LEDs for Camera Flash
· Portable Communication Devices
· Handheld devices
· Digital Cameras
· PDAs
· LED/Display Back Light Driver
· LEDs for Camera Flash
T6313A Connection Diagram
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