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| Part Number | UC2845 |
| Distributor | Stock | Price | Buy |
|---|
| Part Number | UC2845 |
| Manufacturer | STMicroelectronics |
| 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, Minidip SO14 logic to insure latched operation, a PWM comparatorwhich also providescurrentlimit control,and a totem. |
| Part Number | UC2845 |
| Manufacturer | ON Semiconductor |
| Title | High Performance Current-Mode Controller |
| 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 mini. |
| 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. |
| Part Number | UC2845 |
| Manufacturer | Texas Instruments |
| Title | Current-Mode PWM Controller |
| 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. |
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| 3 | UC2841 |
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| 7 | UC2842A |
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| 10 | UC2842A |
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Desde 2024. D4U Semiconductor.
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