LNB Voltage Regulator

文件：1.85246 Mbytes 頁(yè)數(shù)：37 Pages

TI

德州儀器

具有 I2C 接口的 LNB 穩(wěn)壓器

TPS65235 專為模擬和數(shù)字衛(wèi)星接收器而設(shè)計(jì)，是一款具有 I2C 接口的單片穩(wěn)壓器。該器件專用于向碟形天線中的 LNB 降壓轉(zhuǎn)換器或多開(kāi)關(guān)箱提供 13V 至 18V 電源以及 22kHz 音調(diào)信號(hào)。該器件提供了一套完整的解決方案，具有元件數(shù)極少、功率耗散低、設(shè)計(jì)簡(jiǎn)單以及采用 I2C 標(biāo)準(zhǔn)接口等優(yōu)點(diǎn)。\n\nTPS65235 具有高功效。該升壓轉(zhuǎn)換器集成了一個(gè)在 1MHz 或 500kHz 可選開(kāi)關(guān)頻率下運(yùn)行的 140mΩ 功率 MOSFET。線性穩(wěn)壓器中的壓降為 0.8V，能夠更大限度地降低功率損耗。TPS65235 提供了多種生成 22kHz 信號(hào)的方法。具有推挽式輸出級(jí)的集成線性穩(wěn)壓器 ? 用于 LNB 和 I2C 接口的完整集成解決方案\n? 兼容 DiSEqC 2.x 和 DiSEqC 1.x\n? 支持 5V、12V 和 15V 電源軌\n? 高達(dá) 1000mA 的外部電阻器可調(diào)精確輸出電流限制\n? 升壓開(kāi)關(guān)峰值電流限制，與 LDO 電流限制成正比\n? 具有 140mΩ 低 Rds(on) 內(nèi)部電源開(kāi)關(guān)的升壓轉(zhuǎn)換器\n? 可選擇 1MHz 或 500kHz 升壓開(kāi)關(guān)頻率\n? 適用于非 I2C 應(yīng)用的專用使能引腳\n? 具有推挽式輸出級(jí)的低壓降 (LDO) 穩(wěn)壓器，用于提供 VLNB 輸出\n? 內(nèi)置精確的 22kHz 音調(diào)發(fā)生器并支持外部音調(diào)輸入\n? 支持 44;

TI

德州儀器

TPS65235-1 LNB Voltage Regulator With I2C Interface

1 Features ? Complete integrated solution for LNB and I2C interface ? DiSEqC 2.x, and DiSEqC 1.x compatible ? Supports 5-V, 12-V, and 15-V power rail ? Up to 1000-mA accurate output current limit adjustable by external resistor ? Boost switch peak current limit proportional to LDO current

文件：2.43054 Mbytes 頁(yè)數(shù)：43 Pages

TI

德州儀器

TPS65235-1 LNB Voltage Regulator With I2C Interface

1 Features ? Complete integrated solution for LNB and I2C interface ? DiSEqC 2.x, and DiSEqC 1.x compatible ? Supports 5-V, 12-V, and 15-V power rail ? Up to 1000-mA accurate output current limit adjustable by external resistor ? Boost switch peak current limit proportional to LDO current

文件：2.43054 Mbytes 頁(yè)數(shù)：43 Pages

TI

德州儀器

TPS65235-1 LNB Voltage Regulator With I2C Interface

1 Features ? Complete integrated solution for LNB and I2C interface ? DiSEqC 2.x, and DiSEqC 1.x compatible ? Supports 5-V, 12-V, and 15-V power rail ? Up to 1000-mA accurate output current limit adjustable by external resistor ? Boost switch peak current limit proportional to LDO current

文件：2.43054 Mbytes 頁(yè)數(shù)：43 Pages

TI

德州儀器

TPS65235-1 LNB Voltage Regulator With I2C Interface

1 Features ? Complete integrated solution for LNB and I2C interface ? DiSEqC 2.x, and DiSEqC 1.x compatible ? Supports 5-V, 12-V, and 15-V power rail ? Up to 1000-mA accurate output current limit adjustable by external resistor ? Boost switch peak current limit proportional to LDO current

文件：2.43054 Mbytes 頁(yè)數(shù)：43 Pages

TI

德州儀器

TPS65235-1 LNB Voltage Regulator With I2C Interface

1 Features ? Complete integrated solution for LNB and I2C interface ? DiSEqC 2.x, and DiSEqC 1.x compatible ? Supports 5-V, 12-V, and 15-V power rail ? Up to 1000-mA accurate output current limit adjustable by external resistor ? Boost switch peak current limit proportional to LDO current

文件：2.43054 Mbytes 頁(yè)數(shù)：43 Pages

TI

德州儀器

TPS65235-1 LNB Voltage Regulator With I2C Interface

1 Features ? Complete integrated solution for LNB and I2C interface ? DiSEqC 2.x, and DiSEqC 1.x compatible ? Supports 5-V, 12-V, and 15-V power rail ? Up to 1000-mA accurate output current limit adjustable by external resistor ? Boost switch peak current limit proportional to LDO current

文件：2.43054 Mbytes 頁(yè)數(shù)：43 Pages

TI

德州儀器

TPS65235-1 LNB Voltage Regulator With I2C Interface

1 Features ? Complete integrated solution for LNB and I2C interface ? DiSEqC 2.x, and DiSEqC 1.x compatible ? Supports 5-V, 12-V, and 15-V power rail ? Up to 1000-mA accurate output current limit adjustable by external resistor ? Boost switch peak current limit proportional to LDO current

文件：2.43054 Mbytes 頁(yè)數(shù)：43 Pages

TI

德州儀器

LNB Voltage Regulator With I2C Interface

文件：2.40317 Mbytes 頁(yè)數(shù)：39 Pages

TI

德州儀器