Dual-Phase Single or Two Output Synchronous Step-Down Controllers

Description The SC2446 is a high-frequency dual synchronous stepdown switching power supply controller. It provides outof-phase high-current output gate drives to all N-channel MOSFET power stages. The SC2446 operates in synchronous continuous-conduction mode. Both phases are capable of maintaini

文件：803.14 Kbytes 頁(yè)數(shù)：38 Pages

SEMTECH

先之科

高靈敏度鎖存型霍爾傳感

SC224X 系列采用高頻斬波技術(shù)，在全工作電壓和工作溫度范圍內(nèi)具有很高的磁場(chǎng)一致性和對(duì)稱(chēng)性。芯片的電源和輸出腳集成了過(guò)壓保護(hù)功能，具有抗電磁干擾（EMC）能力強(qiáng)和可靠性高的特點(diǎn)。\r\n\r\nSC224X 內(nèi)部集成了穩(wěn)壓模塊、霍爾陣列、放大電路、施密特觸發(fā)器和輸出級(jí)等電路模塊?；魻栃盘?hào)處理通路采用高頻斬波技術(shù)，不但減小了霍爾感應(yīng)陣列和處理電路的失調(diào)電壓，而且減小了應(yīng)力和溫度對(duì)失調(diào)電壓的影響，并盡可能地將芯片的系統(tǒng)延時(shí)及輸出抖動(dòng)降低至最小。\r\n\r\n內(nèi)部集成的穩(wěn)壓電路使芯片可接受 2.5V到 24V 的寬電源供電電壓，滿(mǎn)足工業(yè)和汽車(chē)電子的應(yīng)用需求。\r\n\r\nSC224X 提供小型 ? 鎖存型開(kāi)關(guān)霍爾\r\n? 內(nèi)置 10k 上拉電阻\r\n? 高斬波頻率\r\n? 寬工作電壓范圍：2.5—24V\r\n? 寬工作溫度范圍： -40—150℃\r\n? 磁場(chǎng)對(duì)稱(chēng)性好\r\n? 反向電源電壓保護(hù)到-28V\r\n? 集成過(guò)壓保護(hù)功能在 VDD 和 OUT 腳\r\n? 高抗電磁干擾能力\r\n? 小型封裝\r\n- 3-腳 TO92S -(UA)\r\n- 3-腳 SOT23 -(SO);

Semiment

賽卓電子

Dual-Phase Single or Two-Output Synchronous Step-Down Controller

·2-phase synchronous continuous conduction mode for high-efficiency step-down converters\n·Out-of-phase operation for low-input current ripples\n·Output source and sink currents\n·Fixed-frequency peak current-mode control\n·75 mV/-110 mV maximum current-sense voltage\n·Synthesized MOSFET RDS(ON) cur;

Semtech

先之科

Dual-Phase, Single or Dual Output Synchronous Step-Down Controller

Description The SC2446A is a high-frequency dual synchronous stepdown switching power supply controller. It provides outof-phase output gate signals. The SC2446A operates in synchronous continuous-conduction mode. Both phases are capable of maintaining regulation with sourcing or sinking load cur

文件：525.32 Kbytes 頁(yè)數(shù)：27 Pages

SEMTECH

先之科

Dual-Phase, Single or Dual Output Synchronous Step-Down Controller

Description The SC2446A is a high-frequency dual synchronous stepdown switching power supply controller. It provides outof-phase output gate signals. The SC2446A operates in synchronous continuous-conduction mode. Both phases are capable of maintaining regulation with sourcing or sinking load cur

文件：525.32 Kbytes 頁(yè)數(shù)：27 Pages

SEMTECH

先之科

Dual-Phase, Single or Dual Output Synchronous Step-Down Controller

Description The SC2446A is a high-frequency dual synchronous stepdown switching power supply controller. It provides outof-phase output gate signals. The SC2446A operates in synchronous continuous-conduction mode. Both phases are capable of maintaining regulation with sourcing or sinking load cur

文件：525.32 Kbytes 頁(yè)數(shù)：27 Pages

SEMTECH

先之科

Dual-Phase Single or Two Output Synchronous Step-Down Controllers

Description The SC2446 is a high-frequency dual synchronous stepdown switching power supply controller. It provides outof-phase high-current output gate drives to all N-channel MOSFET power stages. The SC2446 operates in synchronous continuous-conduction mode. Both phases are capable of maintaini

文件：803.14 Kbytes 頁(yè)數(shù)：38 Pages

SEMTECH

先之科

Dual-Phase Single or Two Output Synchronous Step-Down Controllers

Description The SC2446 is a high-frequency dual synchronous stepdown switching power supply controller. It provides outof-phase high-current output gate drives to all N-channel MOSFET power stages. The SC2446 operates in synchronous continuous-conduction mode. Both phases are capable of maintaini

文件：803.14 Kbytes 頁(yè)數(shù)：38 Pages

SEMTECH

先之科

Not Recommended for New Designs; use SC2447

The SC2446A is a high-frequency dual synchronous stepdown switching power supply controller. It provides out-of-phase output gate signals. The SC2446A operates in synchronous continuous-conduction mode. ·2-Phase synchronous continuous conduction mode for high efficiency step-down converters\n·Out of phase operation for low input current ripples\n·Output source and sink currents\n·Fixed frequency peak current-mode control\n·50mV/-75mV maximum current sense voltage\n·Inductive current-sensing for low;

Semtech

先之科

Package：28-TSSOP（0.173"，4.40mm 寬）；包裝：卷帶（TR） 功能：降壓 類(lèi)別：集成電路（IC） PMIC - 穩(wěn)壓器 - DC DC 開(kāi)關(guān)式控制器 描述：IC REG CTRLR BUCK 28TSSOP

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