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IC EC4304BNB6R SOT89-5 E-CMOS
| 附件下載 | |
| 商品名稱 | PWM Control 1.2A Step-Down Converter |
| 訂購數量 | |
| 依數量訂價 | 20 NTD |
| FLYiNG 零件編號 | ICEC4304BNB6RECMOS |
| FLYiNG 庫存現貨 | 5 |
| 製造商 | E-CMOS |
| 製造商零件編號 | EC4304BNB6R |
| 說明 | IC EC4304BNB6R SOT89-5 E-CMOS |
| 無鉛狀態 / RoHS 指令狀態 | RoHS / Halogen Free |
| 訂購數量 | NTD 單價 / PCS |
| 1~9 | 20 |
| 10~99 | 15 |
| 100~2999 | 10 |
| 3000~ | 2 |
| 類別 | PWM Control 1.2A Step-Down Converter |
| 製造 | E-CMOS |
| 零件編號 | EC4304BNB6R |
| 輸入電壓 | 7~30 V |
| 功耗 | 0.5 |
| 封裝／外殼 | SOT23-6L |
| 工作接面溫度 | -40~125 °C |
EC4304B PWM Control 1.2A Step-Down Converter
General Description
The EC4304B is a continuous mode inductive step-down converter, designed for driving single or multiple series connected LEDs efficiently from a voltage source higher than the LED voltage. The device operates from an input supply between 7V and 36V and provides an externally adjustable output current of up to 1.2A.
Depending upon supply voltage and external components, this can provide up to 42 watts of output power.
The EC4304B includes the output switch and a highside output current sensing circuit, which uses an external resistor to set the nominal average output current.
Output current can be adjusted above, or below the set value, by applying an external control signal to the ‘ADJ’ pin.
The ADJ pin will accept either a DC voltage or a PWM waveform. Depending upon the control frequency, this will provide either a continuous or a gated output current.
The PWM filter components are contained within the chip. The EC4304B is available in SOT-23, SOT-89 Lead-free package.
FEATURES
Applications
EC4304B PWM 控制 1.2A 降壓轉換器
一般說明
特徵
應用
General Description
The EC4304B is a continuous mode inductive step-down converter, designed for driving single or multiple series connected LEDs efficiently from a voltage source higher than the LED voltage. The device operates from an input supply between 7V and 36V and provides an externally adjustable output current of up to 1.2A.
Depending upon supply voltage and external components, this can provide up to 42 watts of output power.
The EC4304B includes the output switch and a highside output current sensing circuit, which uses an external resistor to set the nominal average output current.
Output current can be adjusted above, or below the set value, by applying an external control signal to the ‘ADJ’ pin.
The ADJ pin will accept either a DC voltage or a PWM waveform. Depending upon the control frequency, this will provide either a continuous or a gated output current.
The PWM filter components are contained within the chip. The EC4304B is available in SOT-23, SOT-89 Lead-free package.
FEATURES
- Wide Input Voltage Range: 7V to 36V
- LED Output Current Up to 1.2A
- Soft-start
- Single pin on/off and brightness control using DC voltage or PWM
- High efficiency (up to 97%)
- Up to 1MHz switching frequency
- Typical 5% output current accuracy
- SOT-23, SOT-89 Lead-free Package .
Applications
- LED/Display Back Light Driver
- Lightings
- Portable Communication Devices
- Handheld Electronics
EC4304B PWM 控制 1.2A 降壓轉換器
一般說明
- EC4304B 是一款連續模式電感降壓轉換器，設計用於從高於 LED 電壓的電壓源有效驅動單個或多個串聯 LED。該器件採用 7V 至 36V 的輸入電源供電，並提供高達 1.2A 的外部可調輸出電流。
- 根據電源電壓和外部組件，這可以提供高達 42 瓦的輸出功率。
- EC4304B 包括輸出開關和高端輸出電流檢測電路，該電路使用外部電阻器設置標稱平均輸出電流。
- 通過向“ADJ”引腳施加外部控制信號，可以將輸出電流調整為高於或低於設定值。
- ADJ 引腳將接受直流電壓或 PWM 波形。根據控制頻率，這將提供連續或門控輸出電流。
- PWM 濾波器組件包含在芯片內。 EC4304B 採用 SOT-23、SOT-89 無鉛封裝。
特徵
- 寬輸入電壓範圍：7V 至 36V
- LED 輸出電流高達 1.2A
- 慢啟動
- 使用直流電壓或 PWM 進行單針開/關和亮度控制
- 高效率（高達 97%）
- 高達 1MHz 的開關頻率
- 典型的 5% 輸出電流精度
- SOT-23、SOT-89 無鉛封裝。
應用
- LED/顯示器背光驅動器
- 燈飾
- 便攜式通訊設備
- 手持電子產品
