Busque con el número de pieza junto con el fabricante o la descripción
| Distributor | Stock | Price | Buy |
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UC3845 |
| Part Number | UC3845 |
| Manufacturer | UTC |
| Title | HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS |
| Description | The UTC UC3844/3845 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 UC3844 and UC3845 are the under-voltage lockout thresholds. The UC3844 ideally suit. |
| 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 UC3844L-D08-T UC3844G-D08-T UC3844L-S08. |
UC3845 |
| Part Number | UC3845 |
| Manufacturer | ST Microelectronics |
| Title | CURRENTMODE PWM CONTROLLER |
| Description | TheUC3842/3/4/5family of controlICs provides the necessary features to implement off-line or DC to DC fixed frequency current mode control schemes with a minimal externalparts count.Internallyimplementedcircuits include undervoltagelockout featuring start-up current less than 1 mA, a precision refer. |
| Features | to implement off-line or DC to DC fixed frequency current mode control schemes with a minimal externalparts count.Internallyimplementedcircuits include undervoltagelockout featuring start-up current less than 1 mA, a precision reference trimmed for accuracy at the error amp input, logic to insure latched operation, a PWM comparatorwhich also providescurrentlimit control,and a totem pole output st. |
UC3845 |
| Part Number | UC3845 |
| Manufacturer | ON Semiconductor |
| Title | High Performance Current Mode Controllers |
| Description | UC3844, UC3845, UC2844, UC2845 High Performance Current Mode Controllers The UC3844, UC3845 series are high performance fixed frequency current mode controllers. They 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, a latch for single pulse metering, and a flip−flop which blanks the output off every other oscillator cycle, allowing output dead times to be programmed for 50% to 70%. These devices are available in an 8−pin dual−in−line plastic package as well as the 14−pin plastic surface mount (SOIC−1. |
UC3845 |
| Part Number | UC3845 |
| Manufacturer | Texas Instruments |
| Title | Current-Mode PWM Controllers |
| Description | The UCx84x series of control integrated circuits provide the features that are necessary to implement off-line or DC-to-DC fixed-frequency current-mode control schemes, with a minimum number of external components. The internally implemented circuits include an undervoltage lockout (UVLO), featuring. |
| Features |
• Optimized for off-line and DC-to-DC converters • Low start-up current (< 1 mA) • 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 • Error amplifier with low output resistanc. |
| No. | Parte # | Fabricante | Descripción | Hoja de Datos |
|---|---|---|---|---|
| 1 | UC3840 |
STMicroelectronics |
PWM CONTROLLER |
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| 2 | UC3841 |
Unitrode |
Programmable Off-Line PWM Controller |
|
| 3 | UC3842 |
Philips |
Current-mode PWM controller |
|
| 4 | UC3842 |
Fairchild |
SMPS Controller |
|
| 5 | UC3842 |
ST Microelectronics |
CURRENTMODE PWM CONTROLLER |
|
| 6 | UC3842 |
HOTCHIP |
High Performance Current Mode Controller |
|
| 7 | UC3842 |
Texas Instruments |
Current-Mode PWM Controllers |
|
| 8 | UC3842A |
UTC |
CURRENT MODE PWM CONTROLLER |
|
| 9 | UC3842A |
Motorola |
HIGH-PERFORMANCE CONTROLLERS |
|
| 10 | UC3842A |
Fairchild Semiconductor |
SMPS Controller |
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Desde 2024. D4U Semiconductor.
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