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Part Number: IR2E51Y
Description: IR2E51Y incorporates white LED driver with auto brightness control. This IC is equipped with c...
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IR2E51Y
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DataSheet
General Description
IR2E51Y General Description
IR2E51Y incorporates white LED driver with auto brightness control.
This IC is equipped with charge pump DC/DC converter.
Input voltage is boosted into CPO by a charge pump circuit.
This IC maintains high efficiency since the charge pump circuit automatically selects 1x or 1.5x charge pump mode depending on input voltage and load.
It contains 4 white LED drivers to drive the main-LCD backlight, 2 white LED drivers for sub-LCD backlight and RGB-LED drivers.
All LED are connected in parallel.
With peripheral ambient light sensor, this IC automatically adjusts white LED brightness to ambient brightness.
This IC supports I2C-Bus interface.
This product is optimum for use as the backlight white LED driver IC for cellular phone and PDA applications, etc.
IR2E51Y Maximum Ratings
| Parameter | Symbol | Rating | Unit | Conditions |
| Power supply | VIN | 5.5 | V | |
| Power supply | VCC | 5.5 | V | VCCVIN |
| Terminal voltage | VDD | -0.3V ~ VCC+0.3 | V | |
| Terminal voltage1 | Vin1 | -0.3V ~ VDD+0.3 | V | Input pin: EN_RGB,XRESET |
| Terminal voltage2 | Vin2 | -0.3V ~ VDD+0.3 | V | Input pin: SCL,SDA |
| CPO output current | ICPO | 220 | mA | Total drive current |
| Output current | ILED | 35/ch | mA | Each drive pin current |
| Power dissipation | Pd | 1660 | mW | Ta25°C Note1 |
| Derating ratio | Pd | 16.6 | mW/°C | Ta>25°C Note1 |
| Operating temperature range | Topr | -20 ~ 85 | °C | |
| Storage temperature range | Tstg | -55 ~ 125 | °C |
IR2E51Y Features
1. Supply Voltage Range: VIN=3.0V to 4.5V, VCC=2.3V to 3.2V
2. Supports I2C-Bus interface
3. SCL pin and SDA pin are installed with noise filters.
4. Sink-type variable constant current driver for LED (maximum current 27.4mA/ch)
5. Monitoring all LED pins(Response to VF variation of LED)
6.Auto brightness control circuit for main-LCD embedded.(16 steps and 128 gradation sequence)
7.PWM LED Brightness Control (0% to 100%) (RGB)(The PWM signal frequency of 2kHz to 5kHz is recommended.)
8.1x/1.5x Modes Charge Pump: Automatically Selected
9.Voltage reference embedded
10.Stand-by circuit embedded
11.Power-on-reset circuit embedded
12.Soft-Start Limits Inrush Current
13.Effective illuminance range (3lx to 55000lx) (GA1A1S201WP)
2. Supports I2C-Bus interface
3. SCL pin and SDA pin are installed with noise filters.
4. Sink-type variable constant current driver for LED (maximum current 27.4mA/ch)
5. Monitoring all LED pins(Response to VF variation of LED)
6.Auto brightness control circuit for main-LCD embedded.(16 steps and 128 gradation sequence)
7.PWM LED Brightness Control (0% to 100%) (RGB)(The PWM signal frequency of 2kHz to 5kHz is recommended.)
8.1x/1.5x Modes Charge Pump: Automatically Selected
9.Voltage reference embedded
10.Stand-by circuit embedded
11.Power-on-reset circuit embedded
12.Soft-Start Limits Inrush Current
13.Effective illuminance range (3lx to 55000lx) (GA1A1S201WP)
IR2E51Y Typical Application
1.Back light and call alert display (White & RGB LED)
IR2010
PDF/DataSheet Download
- Datasheet: IR2010
- File Size: 232500 KB
- Manufacturer: IRF [International Rectifier]
- Click here to Download
- ·IR2010 (S)
- HIGH AND LOW SIDE DRIVER
- 186559 KB
- ·IR2010S
- IRF [International Rectifier]
- HIGH AND LOW SIDE DRIVER
- 232500 KB
- ·IR2010SPBF
- IRF [International Rectifier]
- HIGH AND LOW SIDE DRIVER
- 232500 KB
- ·IR2011
- IRF [International Rectifier]
- HIGH AND LOW SIDE DRIVER
- 146562 KB
- ·IR2011S
- IRF [International Rectifier]
- HIGH AND LOW SIDE DRIVER
- 146562 KB
- ·IR2011SPbF
- IRF [International Rectifier]
- HIGH AND LOW SIDE DRIVER
- 146562 KB
- ·IR20153S
- IRF [International Rectifier]
- HIGH SIDE DRIVER WITH RECHARGE
- 225463 KB
- ·IR20153SPbF
- IRF [International Rectifier]
- HIGH SIDE DRIVER WITH RECHARGE
- 225463 KB
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