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| Part Number | UC3843A |
| Distributor | Stock | Price | Buy |
|---|
| Part Number | UC3843A |
| Manufacturer | Unitrode |
| Title | Current Mode PWM Controller |
| Description | The UC1842A/3A/4A/5A family of control ICs is a pin for pin compatible improved version of the UC3842/3/4/5 family. Providing the necessary features to control current mode switched mode power supplies, this family has the following improved features. Start up current is guaranteed to be less than 0. |
| Features |
• Optimized for Off-line and DC to DC Converters • Low Start Up Current (<0.5mA) • Trimmed Oscillator Discharge Current • Automatic Feed Forward Compensation • Pulse-by-Pulse Current Limiting • Enhanced Load Response Characteristics DESCRIPTION The UC1842A/3A/4A/5A family of control ICs is a pin for pin compatible improved version of the UC3842/3/4/5 family. Providing the necessary features to co. |
| Part Number | UC3843A |
| Manufacturer | ON Semiconductor |
| Title | High Performance Current Mode Controllers |
| Description | UC3842A, UC3843A, UC2842A, UC2843A High Performance Current Mode Controllers The UC3842A, UC3843A series of high performance fixed frequency current mode controllers are specifically designed for off−line and DC−to−DC converter applications offering the designer a cost effective solution with minim. |
| Features | consisting of input and reference undervoltage lockouts each with hysteresis, cycle−by−cycle current limiting, programmable output deadtime, and a latch for single pulse metering. These devices are available in an 8−pin dual−in−line plastic package as well as the 14−pin plastic surface mount (SOIC−14). The SOIC−14 package has separate power and ground pins for the totem pole output stage. The UCX8. |
| Part Number | UC3843A |
| Manufacturer | UTC |
| Title | CURRENT MODE PWM CONTROLLER |
| Description | The UTC UC3842A/3843A are high performance fixed frequency current mode controllers that specifically designed for Off-Line and DC to DC converter applications with minimal external parts count. The differences between UC3842A and UC3843A are the under-voltage lockout thresholds. The UC3842A ideally. |
| Features | * Operation output switching frequency up to 500 kHz * Automatic feed forward compensation * Latching PWM for cycle-by-cycle current limiting * High current totem pole output * Internally trimmed reference with under voltage lockout * UVLO with hysteresis * Low startup and operating current ORDERING INFORMATION Ordering Number Lead Free Halogen Free UC3842AL-D08-T UC3842AP-D08-T UC3842AL-. |
| Part Number | UC3843A |
| Manufacturer | Motorola |
| Title | HIGH PERFORMANCE CURRENT MODE CONTROLLERS |
| Description | Order this document by UC3842A/D UC3842A, 43A UC2842A, 43A High Performance Current Mode Controllers The UC3842A, UC3843A series of high performance fixed frequency current mode controllers are specifically designed for off–line and dc–to–dc converter applications offering the designer a cost effec. |
| Features |
consisting of input and reference undervoltage lockouts each with hysteresis, cycle –by –cycle current limiting, programmable output deadtime, and a latch for single pulse metering. These devices are available in an 8 –pin dual –in –line plastic package as well as the 14 –pin plastic surface mount (SO –14). The SO –14 package has separate power and ground pins for the totem pole output stage. The UCX842A . |
| Part Number | UC3843A |
| Manufacturer | Fairchild Semiconductor |
| Title | SMPS Controller |
| Description | The UC3842A/UC3843A are fixed PWM controller for OffLine and DC to DC converter applications. The internal circuits include UVLO, low start up current circuit, temperature compensated reference, high gain error amplifier, current sensing comparator, and high current totem-pole output for driving a P. |
| Features |
• • • • • • • Low Start Current 0.2mA (typ) Operating Range Up To 500KHz Cycle by Cycle Current Limiting Under Voltage Lock Out With Hysteresis Short Shutdown Delay Time: typ.100ns High Current Totem-pole Output Output Swing Limiting: 22V Description The UC3842A/UC3843A are fixed PWM controller for OffLine and DC to DC converter applications. The internal circuits include UVLO, low start up curre. |
| Part Number | UC3843A |
| Manufacturer | ST Microelectronics |
| Title | HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER |
| Description | PThe UC384xA family of control ICs provides the necessary features to implement off-line or DC to teDC fixed frequency current mode control schemes lewith a minimal external parts count. Internally imoplemented circuits include a trimmed oscillator for sprecise DUTY CYCLE CONTROL under voltage block. |
| Features |
Figure 1. Package
■ TRIMMED OSCILLATOR DISCHARGE CURRENT ■ CURRENT MODE OPERATION TO 500kHz AUTOMATIC FEED FORWARD COMPENSATION DIP-8 SO-8 ■ LATCHING PWM FOR CYCLE-BY-CYCLE CURRENT LIMITING Table 1. Order Codes ■ INTERNALLY TRIMMED REFERENCE WITH Part Number Package UNDERVOLTAGE LOCKOUT ■ HIGH CURRENT TOTEM POLE OUTPUT t(s)UNDERVOLTAGE LOCKOUT WITH HYSTERESIS c ■ LOW START-UP CURRENT (. |
| Part Number | UC3843A |
| Manufacturer | LINFINITY |
| Title | CURRENT MODE PWM CONTROLLER |
| Description | The UC184xA family of control ICs provides all the necessary features to implement off-line fixed-frequency, current-mode switching power supplies with a minimum of external components. The current mode architecture demonstrates improved load regulation, pulse-by-pulse current limiting and inherent. |
| Features | to implement off-line fixed-frequency, current-mode switching power supplies with a minimum of external components. The current mode architecture demonstrates improved load regulation, pulse-by-pulse current limiting and inherent protection of the power supply output switch. The IC includes: A bandgap reference trimmed to ±1% accuracy, an error amplifier, a current sense comparator with internal c. |
| Part Number | UC3843A |
| Manufacturer | Texas Instruments |
| Title | Current-Mode PWM Controllers |
| Description | The UCx84xA family of control devices is a pin-for-pin compatible improved version of the UCx84x family. Providing the necessary features to control currentmode or switched-mode power supplies, this family of devices has many improved features: startup current is less than 0.5 mA, oscillator discha. |
| Features |
• Optimized for Off-Line and DC-DC Converters • Low Start-Up Current (< 0.5 mA) • Trimmed Oscillator Discharge Current • Automatic Feedforward Compensation • Pulse-by-Pulse Current Limiting • Enhanced Load Response Characteristics • Undervoltage Lockout With Hysteresis • Double Pulse Suppression • High-Current Totem Pole Output • Internally-Trimmed Bandgap Reference • Up to 500-kHz Operation • Cre. |
similar datasheet
| No. | Parte # | Fabricante | Descripción | Hoja de Datos |
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| 1 | UC3843 |
Texas Instruments |
Current-Mode PWM Controllers |
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| 2 | UC3843 |
STMicroelectronics |
CURRENTMODE PWM CONTROLLER |
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| 3 | UC3843 |
Fairchild Semiconductor |
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| 4 | UC3843 |
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| 5 | UC3843 |
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| 6 | UC3843A-BW |
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| 7 | UC3843A-Q |
UTC |
PWM CONTROLLER |
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| 8 | UC3843AD |
ON Semiconductor |
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| 9 | UC3843AN |
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High Performance Current Controller |
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| 10 | UC3843B |
ST Microelectronics |
HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER |
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Desde 2024. D4U Semiconductor.
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