(China (Mainland))
Product Summary
The TPS60230RGTRG4 charge pump is optimized for white LED supplies in backlit color display applications. The device provides a constant current, set by an external resistor, for each LED. The supply voltage ranges from 2.7 V to 6.5 V and is ideally suited for all applications powered by a single LI-Ion battery cell or three to four NiCd, NiMH, or Alkaline battery cells. The TPS60230RGTRG4 provides up to 25 mA per LED, for a total of 125 mA, for input voltages ranging from 3.1 V to 6.5 V. The applications of the TPS60230RGTRG4 include: White LED Backlight for Color Displays in Cellular Phones, Smart Phones, PDAs, Handheld PCs, Digital Cameras, and Camcorders, Key Backlight.
Parametrics
TPS60230RGTRG4 absolute maximum ratings: (1)Supply voltage: –0.3 V to 7 V; (2)Voltage at EN1, EN2, VOUT, ISET: –0.3 V to VI; (3)Output current at VOUT: 200 mA; (4)TJ Maximum junction temperature: 150℃; (5)TA Operating free-air temperature: –40℃ to 85℃; (6)Tst Storage temperature: –65℃ to 150℃; (7)Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds: 300℃.
Features
TPS60230RGTRG4 features: (1)Regulated Output Current With 0.4% Matching; (2)Drives up to 5 LEDs at 25 mA Each; (3)LED Brightness Control Through PWM Control Signal; (4)High Efficiency by Fractional Conversion With 1x and 1.5x Modes; (5)1 MHz Switching Frequency; (6)2.7 V to 6.5 V Operating Input Voltage Range; (7)Internal Soft start Limits Inrush Current; (8)Low Input Ripple and Low EMI; (9)Over current and Over temperature Protected; (10)Under voltage Lockout With Hysteresis; (11)Ultra-Small 3mm×3mm QFN Package.
Diagrams
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 TPS60230RGTRG4 |
Texas Instruments |
Charge Pumps 5-Channel 125-mA Charge Pump |
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