UC1843B-SP

現行

Radiation-hardened, QML-V, 30V input, 1A single-output 500kHz PWM controller, 100% duty cycle

立即訂購

產品規格表

document-pdfAcrobat UC1843B-SP QML Class V, Radiation Hardened Current-Mode PWM Controller datasheet (Rev. B) (英文) PDF | HTML

UC1843B-SP

現行

產品規格表

立即訂購

產品詳細資料

Topology

Boost, Flyback, Forward

Control mode

Peak current mode

Features

Error amplifier, Multi-topology

Duty cycle (max) (%)

100

Topology

Boost, Flyback, Forward

Control mode

Peak current mode

Features

Error amplifier, Multi-topology

Duty cycle (max) (%)

100

DIESALE (KGD)

—

See data sheet

CFP (HKU)

10

45.4896 mm² (— mm × — mm)

QML class V (QMLV) qualified, SMD 5962-86704
5962R8670412VYC:
- Radiation hardness assurance (RHA) up to 100-krad(Si) total ionizing dose (TID)
Optimized for offline and DC-to-DC converters
Low start-up current (< 0.5 mA)
Trimmed oscillator discharge current
Automatic feed forward compensation
Pulse-by-pulse current limiting
Enhanced load response characteristics
Undervoltage lockout (UVLO) with hysteresis
Double-pulse suppression
High-current totem-pole output
Internally-trimmed bandgap reference
500-kHz operation
Low R_O error amplifier

QML class V (QMLV) qualified, SMD 5962-86704
5962R8670412VYC:
- Radiation hardness assurance (RHA) up to 100-krad(Si) total ionizing dose (TID)
Optimized for offline and DC-to-DC converters
Low start-up current (< 0.5 mA)
Trimmed oscillator discharge current
Automatic feed forward compensation
Pulse-by-pulse current limiting
Enhanced load response characteristics
Undervoltage lockout (UVLO) with hysteresis
Double-pulse suppression
High-current totem-pole output
Internally-trimmed bandgap reference
500-kHz operation
Low R_O error amplifier

The UC1843B-SP control IC is a radiation hardened pin-for-pin compatible version of the UC1843A-SP. Providing the necessary characteristics to control current-mode switched-mode power supplies, this device has improved features. Start-up current is specified to be less than 0.5 mA and oscillator discharge is trimmed to 8.3 mA. During UVLO, the output stage can sink at least 10 mA at less than 1.2 V for V_CC over 5 V.

filter

尋找其它 AC/DC 控制器

下載觀看有字幕稿的影片影片

您可能會感興趣的類似產品

open-in-new

比較替代產品

功能相似於所比較的產品。

最新 TPS7H5020-SEP

現行

Radiation-tolerant, 100% duty cycle PWM controller for driving MOSFETs or GaN FETs More feature rich radiation-tolerant PWM controller family for LEO or shorter duration missions

技術文件

找不到結果。請清除您的搜尋條件，然後再試一次。

檢視所有 16

重要文件	類型	標題	格式選項	日期
*	資料表	UC1843B-SP QML Class V, Radiation Hardened Current-Mode PWM Controller datasheet (Rev. B)	PDF \| HTML	2020/12/7
*	輻射及可靠性報告	Single-Event Effects Test Report of the UC1843B-SP Current Mode PWM Controller		2019/8/9
*	輻射及可靠性報告	UC1843B-SP Neutron Displacement Damage (NDD) Characterization		2019/6/28
*	輻射及可靠性報告	UC1843B-SP total ionizing dose (TID) radiation report		2019/2/28
*	SMD	UC1843B-SP SMD 5962-86704		2020/5/19
	選擇指南	TI Space Products (Rev. L)		2026/3/27
	應用說明	Hermetic Package Reflow Profiles, Termination Finishes, and Lead Trim and Form (Rev. A)	PDF \| HTML	2025/11/5
	Application brief	DLA Approved Optimizations for QML Products (Rev. C)	PDF \| HTML	2025/6/17
	應用說明	Heavy Ion Orbital Environment Single-Event Effects Estimations (Rev. B)	PDF \| HTML	2025/6/10
	更多文件說明	TI Engineering Evaluation Units vs. MIL-PRF-38535 QML Class V Processing (Rev. B)		2025/2/20
	應用說明	QML flow, its importance, and obtaining lot information (Rev. C)		2023/8/30
	應用說明	Single-Event Effects Confidence Interval Calculations (Rev. A)	PDF \| HTML	2022/10/19
	Application brief	Controlling Input Power for Present and Next-Generation Power Controllers	PDF \| HTML	2020/12/14
	應用說明	DLA Standard Microcircuit Drawings (SMD) and JAN Part Numbers Primer		2020/8/21
	電子書	Radiation Handbook for Electronics (Rev. A)		2019/5/21
	使用指南	UC1843B-SP evaluation module (EVM) user's guide		2019/3/29

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

UC1843BEVM-CVAL — UC1843B-SP 電流模式 PWM 控制器評估模組

UC1843BEVM-CVAL 使用 UC1843A-SP、INA901-SP、LM139AQML-SP 和 UC1901-SP 建立含電流感測與過電流旗標的隔離式回饋返馳。UC1843A-SP 可用於切換返馳式轉換器的低側 MOSFET ，並將電壓和電流提供至輸出。UC1901-SP 會感測輸出電壓並完成隔離反饋的迴路。INA901-SP 會感測提供給 LM139AQML-SP 的輸入電流，以建立過電流旗標。

支援產品和硬體

有庫存

限制：

登入以進行訂購

lock

登入以檢視庫存

??asset.out-of-stock-ti_zh_TW??

無法提供

模擬型號