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| Part Number | UC3844 |
| Distributor | Stock | Price | Buy |
|---|
| Part Number | UC3844 |
| 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. |
| Part Number | UC3844 |
| 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. |
| Part Number | UC3844 |
| 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, logic to insure latched operation, a PWM comparatorwhich also providescurrentlimit control,and a totem pole output st. |
| Part Number | UC3844 |
| Manufacturer | Fairchild Semiconductor |
| Title | SMPS Controller |
| Description | The UC3842/UC3843/UC3844/UC3845 are fixed frequencycurrent-mode PWM controller. They are specially designed for Off-Line and DC to DC converter applications with minimum external components. These integrated circuits feature a trimmed oscillator for precise duty cycle control, a temperature compensa. |
| Features |
• • • • Low Start up Current Maximum Duty Clamp UVLO With Hysteresis Operating Frequency up to 500KHz Description The UC3842/UC3843/UC3844/UC3845 are fixed frequencycurrent-mode PWM controller. They are specially designed for Off-Line and DC to DC converter applications with minimum external components. These integrated circuits feature a trimmed oscillator for precise duty cycle control, a tempe. |
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| 1 | UC3840 |
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| 2 | UC3841 |
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| 3 | UC3842 |
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| 4 | UC3842 |
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| 5 | UC3842 |
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| 6 | UC3842 |
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| 7 | UC3842 |
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| 8 | UC3842A |
UTC |
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| 9 | UC3842A |
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| 10 | UC3842A |
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Desde 2024. D4U Semiconductor.
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