UC1846-SP

Name: UC1846-SP
Brand: TI
SKU: UC1846-SP
Price: 348.242 USD

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耐辐射 QMLV、40V 输入、0.5A 双路输出 500kHz PWM 控制器

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数据表

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

UC1846-SP

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数据表

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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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