5962-8670409 Series
Radiation-tolerant QMLV, enhanced 30-V input, 1-A 500-kHz PWM controller, 100% duty cycle
Manufacturer: Texas Instruments
Catalog(1 parts)
| Part | Output Type | Clock Sync▲▼ | Function | Mounting Type | Control Features | Topology | Output Configuration | Synchronous Rectifier▲▼ | Number of Outputs▲▼ | Frequency - Switching▲▼ | Output Phases▲▼ | Operating Temperature▲▼ | Operating Temperature▲▼ | Supplier Device Package | Voltage - Supply (Vcc/Vdd)▲▼ | Voltage - Supply (Vcc/Vdd)▲▼ | Duty Cycle (Max)▲▼ | Package / Case | Package / Case▲▼ | Package / Case▲▼ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments 5962-8670409VPABoost, Flyback, Forward Regulator Positive Output Step-Up, Step-Up/Step-Down DC-DC Controller IC 8-CDIP | Transistor Driver | Step-Up, Step-Up/Step-Down | Through Hole | Frequency Control | Boost, Flyback, Forward | Positive | 1 ul | 500000 Hz | 1 ul | -55 °C | 125 °C | 8-CDIP | 12 V | 25 V | 0.959999978542328 ul | 8-CDIP | 0.007619999814778566 m | 0.007619999814778566 m |
Key Features
• QML Class V (QMLV) Qualified, SMD 5962-867045962P8670409Vxx:Radiation Hardness Assurance (RHA) up to30-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.bExhibits Low-Dose Rate Sensitivity but Remains Within the Pre-Radiation Electrical Limits at 30-krad Total Dose Level, as Allowed by MIL-STD-883, TM1019Optimized for Offline and DC-to-DC ConvertersLow Start-Up Current (< 0.5 mA)Trimmed Oscillator Discharge CurrentAutomatic Feed Forward CompensationPulse-by-Pulse Current LimitingEnhanced Load Response CharacteristicsUndervoltage Lockout (UVLO) With HysteresisDouble-Pulse SuppressionHigh-Current Totem-Pole OutputInternally-Trimmed Bandgap Reference500-kHz OperationLow ROError AmplifierQML Class V (QMLV) Qualified, SMD 5962-867045962P8670409Vxx:Radiation Hardness Assurance (RHA) up to30-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.bExhibits Low-Dose Rate Sensitivity but Remains Within the Pre-Radiation Electrical Limits at 30-krad Total Dose Level, as Allowed by MIL-STD-883, TM1019Optimized for Offline and DC-to-DC ConvertersLow Start-Up Current (< 0.5 mA)Trimmed Oscillator Discharge CurrentAutomatic Feed Forward CompensationPulse-by-Pulse Current LimitingEnhanced Load Response CharacteristicsUndervoltage Lockout (UVLO) With HysteresisDouble-Pulse SuppressionHigh-Current Totem-Pole OutputInternally-Trimmed Bandgap Reference500-kHz OperationLow ROError Amplifier
Description
AI
The UC1843A-SP control IC is a radiation hardened pin-for-pin compatible version of the UC184x family. 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 VCCover 5 V.
TheDevice Comparison Tableshows the difference between members of this family. Reference the individual product data sheets for ordering the radiation-improved version if available.
The UC1843A-SP control IC is a radiation hardened pin-for-pin compatible version of the UC184x family. 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 VCCover 5 V.
TheDevice Comparison Tableshows the difference between members of this family. Reference the individual product data sheets for ordering the radiation-improved version if available.