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白光LED驅(qū)動(dòng)器

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SGM3132

The SGM3132 is a 4-channel white LED driver with ultra-low dropout current sources. Low 35mV dropout voltage makes the SGM3132 ideal for battery-powered applications.

應(yīng)用領(lǐng)域

4-Channel One-Wire Dimming LED Driver with Ultra-Low Dropout Current Source

產(chǎn)品詳情
GENERAL DESCRIPTION

The SGM3132 is a 4-channel white LED driver with ultra-low dropout current sources. Low 35mV dropout voltage makes the SGM3132 ideal for battery-powered applications.

The SGM3132 integrates an internal resistor to set the LED bias current and a deglitch circuit for filtering the noise on the EN pin. 16-step LED current levels can be set by a serial pulse input signal into the EN pin.

The SGM3132 is available in Green TQFN-3×3-16L, TDFN-2×2-8L and MSOP-8 packages. It operates over an ambient temperature range of -40℃ to +85℃.

PIN CONFIGURATIONS

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FEATURES

  • Support up to 4 LEDs

  • Ultra-Low 35mV Dropout Voltage at a 20mA Load

  • 16-Step Brightness Control through One-Wire Interface

  • LED Sink Current: 20mA

  • ±3% Regulated LED Current Matching

  • Internal Deglitch Circuit

  • Thermal Shutdown

  • No EMI and Switch Noise

  • Operating Temperature Range: -40℃ to +85℃

  • Available in Green TQFN-3×3-16L, TDFN-2×2-8L and MSOP-8 Packages

APPLICATIONS

Wireless Handsets

Mobile Phones, Digital Cameras, Camcorders

Portable Equipment

PDAs, Palmtops, and Handy Terminals

Battery-Powered Equipment


ORDERING INFORMATION
Part NumberStatusPackagePinsPb-FreeTemp Range
SGM3132YTQ16G/TRProductionTQFN-3×3-16L16Y-40℃ to +85℃
SGM3132YDE8G/TRProductionTDFN-2×2-8L8Y-40℃ to +85℃
SGM3132YMS8G/TRProductionMSOP-88Y-40℃ to +85℃