Purchase G5921, In-stock G5921 From SeekIC.
Part Number: G5921
Description: The G5920/G5921 is a high performance ultra low- dropout constant current bias supply for white LEDs. ...
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G5921
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DataSheet
General Description
G5921 General Description
The G5920/G5921 is a high performance ultra low- dropout constant current bias supply for white LEDs. It can be used as an alternative to the simple ballast resistors in conventional parallel white LEDs applications. Each white LED bias current is matching to 0.6%.
For dimming control, an enable input pin is controlled by processor GPIO output pulses for 32 level linear current. Using a low frequency PWM waveform to this enable input pin also controls the average LED current which is proportional to the PWM duty.
The G5920/G5921 is suitable for single cell Li-ion bat-tery power device that using low forward voltage white LEDs. The white LEDs can be powered directly from battery without extra external components. This takes an advantage of highest efficiency and creates no EMI problem.
G5921 Maximum Ratings
VCC to GND.............-0.3V to +7.0V
EN, LED1, LED2, LED3 to GND .0.3V to VCC+0.3V
Operating Temperature Range.....40 to 85
Junction Temperature ............125
Storage Temperature........-65 to 150
Reflow Temperature (soldering, 10sec) ...260
Stress beyond those listed under "Absolute Maximum Rting"may cause permanent damage to the device.
EN, LED1, LED2, LED3 to GND .0.3V to VCC+0.3V
Operating Temperature Range.....40 to 85
Junction Temperature ............125
Storage Temperature........-65 to 150
Reflow Temperature (soldering, 10sec) ...260
Stress beyond those listed under "Absolute Maximum Rting"may cause permanent damage to the device.
G5921 Features
·Ultra Low 150mV Dropout at 20mA
·0.6% High Accuracy Current Matching
·20mA Full Scale Current
·32 Level Linear Current Brightness Control
· PWM Brightness Control
·2.5V to 5.5V Supply Voltage Range
·SOT-23-6 Package (G5920)
·MSOP-8 Package (G5921)
·0.6% High Accuracy Current Matching
·20mA Full Scale Current
·32 Level Linear Current Brightness Control
· PWM Brightness Control
·2.5V to 5.5V Supply Voltage Range
·SOT-23-6 Package (G5920)
·MSOP-8 Package (G5921)
G5921 Typical Application
·Mobile Phones
·White LED backlighting
·White LED backlighting
G5921 Connection Diagram
- Datasheet:
- File Size: KB
- Manufacturer:
- Click here to Download
- · EPCS4SI8
- 226669 KB
- · UTC2411
- 136508 KB
- ·(M5M410092B)
- Mitsubishi
- 3D-RAM
- 1268750 KB
- ·_FCQ30A06
- NIEC [Nihon Inter Electronics Corporation]
- LOW FORWARD VOLTAGE DROP
- 29515 KB
- ·0001.2501.PT
- Fuse
- 40400 KB
- ·0001.2501.TR
- Fuse
- 40400 KB
- ·0001.2502.PT
- Fuse
- 40400 KB
- ·0001.2502.TR
- Fuse
- 40400 KB
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