UC1844A-SP

Name: UC1844A-SP
Brand: TI
SKU: UC1844A-SP
Price: 158.101 USD

활성

우주 등급 QMLV, 향상된 30V 입력, 1A 단일 출력 500kHz PWM 컨트롤러, 50% 듀티 사이클

지금 주문

데이터 시트

document-pdfAcrobat UC184xA-SP QML class V, current-mode PWM controller datasheet (Rev. E) (영어) PDF | HTML

UC1844A-SP

활성

데이터 시트

지금 주문

제품 상세 정보

Vin (max) (V)

30

Operating temperature range (°C)

-55 to 125

Control mode

Current

Topology

Boost, Flyback, Forward

Rating

Space

Features

Error amplifier, Multi-topology

Duty cycle (max) (%)

50

Vin (max) (V)

30

Operating temperature range (°C)

-55 to 125

Control mode

Current

Topology

Boost, Flyback, Forward

Rating

Space

Features

Error amplifier, Multi-topology

Duty cycle (max) (%)

50

QML Class V (QMLV) Qualified, SMD 5962-86704
Rad-Tolerant: 30-krad(Si) TID ⁽¹⁾ ⁽²⁾
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

⁽¹⁾The LDR improved die is only available in the UC1843A-SP (orderable as 5962-8670409VPA). Contact factory to request an LDR-improved version of the UC1842A-SP or UC1844A-SP.

⁽²⁾Radiation tolerance is a typical value based upon initial device qualification with dose rate = 10 mrad(Si)/s. Radiation lot acceptance testing is available - contact factory for details.

QML Class V (QMLV) Qualified, SMD 5962-86704
Rad-Tolerant: 30-krad(Si) TID ⁽¹⁾ ⁽²⁾
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

⁽¹⁾The LDR improved die is only available in the UC1843A-SP (orderable as 5962-8670409VPA). Contact factory to request an LDR-improved version of the UC1842A-SP or UC1844A-SP.

⁽²⁾Radiation tolerance is a typical value based upon initial device qualification with dose rate = 10 mrad(Si)/s. Radiation lot acceptance testing is available - contact factory for details.

The UC184xA-SP family of control ICs is a pin-for-pin compatible improved 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 V_CC over 5 V.

The Device Comparison Table shows the difference between members of this family. Reference the individual product data sheets for ordering the radiation-improved version if available.

The UC184xA-SP family of control ICs is a pin-for-pin compatible improved 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 V_CC over 5 V.

The Device Comparison Table shows the difference between members of this family. Reference the individual product data sheets for ordering the radiation-improved version if available.

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