集成 I2C 接口的 8 通道同步 50V WLED 升壓驅(qū)動(dòng)器

MP3371 是一款集成 8 個(gè)電流通道的同步升壓變換器，用于驅(qū)動(dòng)平板電腦和筆記本電腦背光應(yīng)用中的 LCD 面板內(nèi) WLED 陣列。\n\n MP3371 利用峰值電流控制模式和脈寬調(diào)制（PWM）控制來保持升壓變換器的調(diào)節(jié)性能。MP3371 采用標(biāo)準(zhǔn)的 I2C 數(shù)字接口來設(shè)置工作模式、開關(guān)頻率、每路的滿量程電流、同步或非同步模式、調(diào)光模式和占空比，以及各種保護(hù)閾值。\n\n 由于用于 LED 調(diào)節(jié)的電壓凈空低且開關(guān) MOSFET 的導(dǎo)通電阻小，MP3371 具有高效特性。同步整流器可以節(jié)省 PCB 尺寸并降低 BOM 總成本。\n\n MP3371 采用 QFN- ? 8 通道，最大電流 50mA，45V VOUT，I2C 接口\n? 輸入電壓范圍：3V 至 30V\n? 最大 2.5% 的電流匹配度\n? A1 引腳用于 2 PCS IC 選擇\n? 啟動(dòng)期間自動(dòng)禁用未使用的 LED 燈串\n? 無需相鄰引腳短路測(cè)試\n? 采用 QFN-24（4mmx4mm）封裝\n? 100Hz 時(shí)，10000:1 PWM 調(diào)光比\n? 350kHz 至 2.4Mhz 可選開關(guān)頻率\n? 可選擇同步或非同步模式\n? 模擬和混合調(diào)光功能\n? 線性穩(wěn)定調(diào)光斜坡設(shè)置\n? 相移功能（MP3372）\n? LED 短路/開路保護(hù)、OTP 和 OCP 保護(hù);

MPS

美國(guó)芯源

Wide Dynamic Range DTMF Receiver

Description The MT3x7xB is a family of high performance DTMF receivers which decode all 16 tone pairs into a 4-bit binary code. These devices incorporate an AGC for wide dynamic range and are suitable for end-to-end signalling. The MT3x70B provides an early steering (ESt) logic output to indica

文件：485.97 Kbytes 頁數(shù)：15 Pages

ZARLINK

Zarlink Semiconductor Inc

Wide Dynamic Range DTMF Receiver

文件：91.02 Kbytes 頁數(shù)：8 Pages

MITEL

Wide Dynamic Range DTMF Receiver

Description The MT3x7xB is a family of high performance DTMF receivers which decode all 16 tone pairs into a 4-bit binary code. These devices incorporate an AGC for wide dynamic range and are suitable for end-to-end signalling. The MT3x70B provides an early steering (ESt) logic output to indica

文件：485.97 Kbytes 頁數(shù)：15 Pages

ZARLINK

Zarlink Semiconductor Inc