UC1846-SP

Name: UC1846-SP
Brand: TI
SKU: UC1846-SP
Price: 302.819 USD

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Controlador PWM de 500 kHz, QMLV con tolerancia a la radiación, entrada de 40 V y doble salida de

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Hoja de datos

document-pdfAcrobat UC1846-SP Class-V, Radiation Hardened PWM Controller datasheet (Rev. D) (Inglés) PDF | HTML

UC1846-SP

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Detalles del producto

Vin (max) (V)

40

Operating temperature range (°C)

-55 to 125

Control mode

Current

Topology

Boost, Flyback, Forward, Full bridge, Half bridge, Push pull

Rating

Space

Features

Error amplifier, Multi-topology, Soft start, Synchronization pin

Duty cycle (max) (%)

50

Vin (max) (V)

40

Operating temperature range (°C)

-55 to 125

Control mode

Current

Topology

Boost, Flyback, Forward, Full bridge, Half bridge, Push pull

Rating

Space

Features

Error amplifier, Multi-topology, Soft start, Synchronization pin

Duty cycle (max) (%)

50

CDIP (J)

16

135.3552 mm² 19.56 x 6.92

CFP (W)

16

69.319 mm² 10.3 x 6.73

DIESALE (KGD)

—

See data sheet

LCCC (FK)

20

79.0321 mm² 8.89 x 8.89

QML-V Qualified, SMD 5962-86806
5962P8680603VxA:
- Radiation Hardness Assurance (RHA) up to 30-krad(Si) Total Ionizing Dose (TID)
- Passes Functional and Specified Post-Radiation Parametric Limits at 45 krad at LDR (10 mrad(Si)/s) per 1.5× Over Test as Defined in MIL-STD-883 Test Method 1019.9 Paragraph 3.13.3.b
- Exhibits Low-Dose Rate Sensitivity but Remains Within the Pre-Radiation Electrical Limits at 30-krad Total Dose Level, as Allowed by MIL-STD-883, TM1019
Automatic Feed-Forward Compensation
Programmable Pulse-by-Pulse Current Limiting
Automatic Symmetry Correction in Push-Pull Configuration
Enhanced Load Response Characteristics
Parallel-Operation Capability for Modular Power Systems
Differential Current-Sense Amplifier With Wide Common-Mode Range
Double-Pulse Suppression
500-mA (Peak) Totem-Pole Outputs
±1% Bandgap Reference
Undervoltage Lockout (UVLO)
Soft-Start Capability
Shutdown Terminal
500-kHz Operation

QML-V Qualified, SMD 5962-86806
5962P8680603VxA:
- Radiation Hardness Assurance (RHA) up to 30-krad(Si) Total Ionizing Dose (TID)
- Passes Functional and Specified Post-Radiation Parametric Limits at 45 krad at LDR (10 mrad(Si)/s) per 1.5× Over Test as Defined in MIL-STD-883 Test Method 1019.9 Paragraph 3.13.3.b
- Exhibits Low-Dose Rate Sensitivity but Remains Within the Pre-Radiation Electrical Limits at 30-krad Total Dose Level, as Allowed by MIL-STD-883, TM1019
Automatic Feed-Forward Compensation
Programmable Pulse-by-Pulse Current Limiting
Automatic Symmetry Correction in Push-Pull Configuration
Enhanced Load Response Characteristics
Parallel-Operation Capability for Modular Power Systems
Differential Current-Sense Amplifier With Wide Common-Mode Range
Double-Pulse Suppression
500-mA (Peak) Totem-Pole Outputs
±1% Bandgap Reference
Undervoltage Lockout (UVLO)
Soft-Start Capability
Shutdown Terminal
500-kHz Operation

The UC1846-SP control devices provide all of the necessary features to implement fixed frequency, current mode control schemes while maintaining a minimum external parts count. The superior performance of this technique can be measured in improved line regulation, enhanced load response characteristics, and a simpler, easier-to-design control loop. Topological advantages include inherent pulse-by-pulse current limiting capability, automatic symmetry correction for push-pull converters, and the ability to parallel power modules while maintaining equal current sharing.

Protection circuitry includes built-in UVLO and programmable current limit in addition to soft-start capability. A shutdown function is also available which can initiate either a complete shutdown with automatic restart or latch the supply off.

Other features include fully latched operation, double-pulse suppression, deadline adjust capability, a ±1% trimmed bandgap reference, and low outputs in the OFF state.

The UC1846-SP control devices provide all of the necessary features to implement fixed frequency, current mode control schemes while maintaining a minimum external parts count. The superior performance of this technique can be measured in improved line regulation, enhanced load response characteristics, and a simpler, easier-to-design control loop. Topological advantages include inherent pulse-by-pulse current limiting capability, automatic symmetry correction for push-pull converters, and the ability to parallel power modules while maintaining equal current sharing.

Protection circuitry includes built-in UVLO and programmable current limit in addition to soft-start capability. A shutdown function is also available which can initiate either a complete shutdown with automatic restart or latch the supply off.

Other features include fully latched operation, double-pulse suppression, deadline adjust capability, a ±1% trimmed bandgap reference, and low outputs in the OFF state.

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Documentación técnica

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	Tipo	Título		Fecha
*	Data sheet	UC1846-SP Class-V, Radiation Hardened PWM Controller datasheet (Rev. D)	PDF \| HTML	14 dic 2016
*	Radiation & reliability report	UC1846-SP Neutron Displacement Damage (NDD) Characterization Report		29 oct 2021
*	Radiation & reliability report	UC1846-SP Neutron Displacement Damage (NDD) Characterization		26 jun 2017
*	SMD	UC1846-SP SMD 5962-86806		08 jul 2016
*	Radiation & reliability report	UC1846-SP Radiation Test Report		08 may 2015
	Application brief	DLA Approved Optimizations for QML Products (Rev. B)	PDF \| HTML	17 may 2024
	Selection guide	TI Space Products (Rev. J)		12 feb 2024
	More literature	TI Engineering Evaluation Units vs. MIL-PRF-38535 QML Class V Processing (Rev. A)		31 ago 2023
	Application note	QML flow, its importance, and obtaining lot information (Rev. C)		30 ago 2023
	Application note	Heavy Ion Orbital Environment Single-Event Effects Estimations (Rev. A)	PDF \| HTML	17 nov 2022
	Application note	Single-Event Effects Confidence Interval Calculations (Rev. A)	PDF \| HTML	19 oct 2022
	Application brief	Controlling Input Power for Present and Next-Generation Power Controllers	PDF \| HTML	14 dic 2020
	Application note	DLA Standard Microcircuit Drawings (SMD) and JAN Part Numbers Primer		21 ago 2020
	Application note	Hermetic Package Reflow Profiles, Termination Finishes, and Lead Trim and Form	PDF \| HTML	18 may 2020
	E-book	Radiation Handbook for Electronics (Rev. A)		21 may 2019
	Technical article	Power Tips: Calculate an R-C snubber in seven steps	PDF \| HTML	05 may 2016

Diseño y desarrollo

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