- SGM3138YTQ16TR
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詳細(xì)信息
品牌:SGM
封裝:TQFN-3×3-16L
批號(hào):17+
數(shù)量:99999
描述:LED驅(qū)動(dòng)器
LED連接方式 Common
Anode
驅(qū)動(dòng)LED 通道數(shù) 6
1/1.5/2倍 工作模式 1×/1.5×
靜態(tài)電流 (μA) 210
關(guān)斷電流 (μA) < 1
調(diào)光方式 One-Wire
電流匹配度 < ±5%
封裝形式 TQFN-3×3-16L
產(chǎn)品描述
The SGM3138 is a high performance white LED driver. It integrates current sources and automatic mode selection charge pump. The part maintains the high efficiency by utilizing a 1×/1.5× fractional charge pump and low dropout current sources. The small equivalent 1× mode open loop resistance and ultra-low dropout voltage of current source extend the operating time of 1× mode and optimize the efficiency of Li-ion battery in white LED applications.
The SGM3138 supports up to 6 white LEDs and regulates a constant current which the initial value can be set by an internal resistor. The part implements a 4-bit DAC for brightness control. Users can easily configure the LED current from 1.25mA to 20mA by a serial pulse. The dimming of white LEDs current can be achieved by applying a pulse signal to the EN/SET pin. There are totally 16 steps of current could be set by users. The operating voltage range is 2.7V to 5.5V. Internal soft start circuitry effectively reduces the in-rush current while both start-up and mode transition.
The SGM3138 is available in Green TQFN-3×3-16L package and is rated over the -40°C to +85°C temperature range.
產(chǎn)品特性
• Input Voltage Range: 2.7V to 5.5V
• Drives up to 6 LEDs at 20mA Each
• One Single Wire Interface
• 16-Step Brightness Control
• High Efficiency by Fractional Conversion with 1× and 1.5× Modes
• Switching Frequency: 1MHz
• Regulated Output Current with ±5% Matching
• Internal Soft-start Limits Inrush Current
• Low Input Ripple and Low EMI
• Over Current and Over Temperature Protection
• Under Voltage Lockout with Hysteresis
• Available in Green TQFN-3×3-16L Package
應(yīng)用領(lǐng)域
Mobile Phone, DSC, MP3
White LED Backlighting
LCD Display Supply
訂貨信息
產(chǎn)品型號(hào) 狀態(tài) 封裝形式 管腳 無鉛 溫度
SGM3138YTQ16G/TR 量產(chǎn) TQFN-3×3-16L 16 Y -40°C to +85°C
封裝:TQFN-3×3-16L
批號(hào):17+
數(shù)量:99999
描述:LED驅(qū)動(dòng)器
LED連接方式 Common
Anode
驅(qū)動(dòng)LED 通道數(shù) 6
1/1.5/2倍 工作模式 1×/1.5×
靜態(tài)電流 (μA) 210
關(guān)斷電流 (μA) < 1
調(diào)光方式 One-Wire
電流匹配度 < ±5%
封裝形式 TQFN-3×3-16L
產(chǎn)品描述
The SGM3138 is a high performance white LED driver. It integrates current sources and automatic mode selection charge pump. The part maintains the high efficiency by utilizing a 1×/1.5× fractional charge pump and low dropout current sources. The small equivalent 1× mode open loop resistance and ultra-low dropout voltage of current source extend the operating time of 1× mode and optimize the efficiency of Li-ion battery in white LED applications.
The SGM3138 supports up to 6 white LEDs and regulates a constant current which the initial value can be set by an internal resistor. The part implements a 4-bit DAC for brightness control. Users can easily configure the LED current from 1.25mA to 20mA by a serial pulse. The dimming of white LEDs current can be achieved by applying a pulse signal to the EN/SET pin. There are totally 16 steps of current could be set by users. The operating voltage range is 2.7V to 5.5V. Internal soft start circuitry effectively reduces the in-rush current while both start-up and mode transition.
The SGM3138 is available in Green TQFN-3×3-16L package and is rated over the -40°C to +85°C temperature range.
產(chǎn)品特性
• Input Voltage Range: 2.7V to 5.5V
• Drives up to 6 LEDs at 20mA Each
• One Single Wire Interface
• 16-Step Brightness Control
• High Efficiency by Fractional Conversion with 1× and 1.5× Modes
• Switching Frequency: 1MHz
• Regulated Output Current with ±5% Matching
• Internal Soft-start Limits Inrush Current
• Low Input Ripple and Low EMI
• Over Current and Over Temperature Protection
• Under Voltage Lockout with Hysteresis
• Available in Green TQFN-3×3-16L Package
應(yīng)用領(lǐng)域
Mobile Phone, DSC, MP3
White LED Backlighting
LCD Display Supply
訂貨信息
產(chǎn)品型號(hào) 狀態(tài) 封裝形式 管腳 無鉛 溫度
SGM3138YTQ16G/TR 量產(chǎn) TQFN-3×3-16L 16 Y -40°C to +85°C
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