Tudi TL3844BDR-8-TUDI
| Manufacturer | TudiAsian Brands |
| MPN | TL3844BDR-8-TUDI |
| LCSC Part # | C42372893 |
| Packaging | SOP-8 |
| Customer # | |
| Key Attributes | HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS |
| Datasheet |  Tudi TL3844BDR-8-TUDI |
Products Specifications
Show similar products (0) >| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/AC DC Converters, Offline Switchers | |
| Manufacturer | Tudi | |
| Packaging | SOP-8 | |
| Operating Temperature | 0℃~+70℃ | |
| Frequency - Switching | 47kHz~57kHz | |
| Output Current | 1A | |
| Pd - Power Dissipation | 1W | |
| Voltage - Breakdown | - | |
| Voltage - Supply | 10V~30V | |
| Features | Under-voltage lockout;Under Voltage Protection;Over Current Protection | |
| Topology | Flyback;Boost | |
| Duty Cycle(Max) | 50% | |
| Working Mode | PWM Modulation |
Additional Information
| Type | Details |
|---|---|
| Minimum | 5 |
| Multiple | 5 |
| Standard Packaging | 2500 |
| Sales Unit | Piece |
| EDA Models | EasyEDA Model |
Introduction
The TL284xB and TL384xB 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. Internally implemented circuits include an undervoltage lockout (UVLO) and a precision reference that is trimmed for accuracy at the error amplifier input. Other internal circuits include logic to ensure latched operation, a pulse-width modulation (PWM) comparator that also provides current-limit control, and a totem-pole output stage designed to source or sink high-peak current. The output stage, suitable for driving N-channel MOSFETs, is low when it is in the off state.
The TL284xB and TL384xB series are pin compatible with the standard TL284x and TL384x with the following improvements.
Major differences between members of these series are the UVLO thresholds and maximum duty-cycle ranges. The TLx842B and TLx843B devices can operate to duty cycles approaching 100%. A duty-cycle range of 0% to 50% is obtained by the TLx844B and TLx845B by the addition of an internal toggle flip-flop, which blanks the output off every other clock cycle. The TL284xB-series devices are characterized for operation from -40°C to 85°C. The TL384xB-series devices are characterized for operation from 0°C to 70°C.
Features
- Low Start-Up Current (< 0.5 mA)
- Trimmed Oscillator Discharge Current
- Current Mode Operation to 500 kHz
- Automatic Feed-Forward Compensation
- Latching PWM for Cycle-by-Cycle Current Limiting
- Internally Trimmed Reference With Undervoltage Lockout
- High-Current Totem-Pole Output
- Undervoltage Lockout With Hysteresis
- Double-Pulse Suppression
| Qty | Unit Price(Reference Only) | Total Amount |
|---|---|---|
| 5+ | $ 0.2422 | $ 1.21 |
| 50+ | $ 0.1902 | $ 9.51 |
| 150+ | $ 0.1679 | $ 25.19 |
| 500+ | $ 0.1401 | $ 70.05 |
| 2,500+ | $ 0.1231 | $ 307.75 |
| 5,000+ | $ 0.1156 | $ 578.00 |
Standard Packaging2500/Full Reel | ||
Products Specifications
Show similar products (0) >| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/AC DC Converters, Offline Switchers | |
| Manufacturer | Tudi | |
| Packaging | SOP-8 | |
| Operating Temperature | 0℃~+70℃ | |
| Frequency - Switching | 47kHz~57kHz | |
| Output Current | 1A | |
| Pd - Power Dissipation | 1W | |
| Voltage - Breakdown | - | |
| Voltage - Supply | 10V~30V | |
| Features | Under-voltage lockout;Under Voltage Protection;Over Current Protection | |
| Topology | Flyback;Boost | |
| Duty Cycle(Max) | 50% | |
| Working Mode | PWM Modulation |
Additional Information
| Type | Details |
|---|---|
| Minimum | 5 |
| Multiple | 5 |
| Standard Packaging | 2500 |
| Sales Unit | Piece |
| EDA Models | EasyEDA Model |
Introduction
The TL284xB and TL384xB 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. Internally implemented circuits include an undervoltage lockout (UVLO) and a precision reference that is trimmed for accuracy at the error amplifier input. Other internal circuits include logic to ensure latched operation, a pulse-width modulation (PWM) comparator that also provides current-limit control, and a totem-pole output stage designed to source or sink high-peak current. The output stage, suitable for driving N-channel MOSFETs, is low when it is in the off state.
The TL284xB and TL384xB series are pin compatible with the standard TL284x and TL384x with the following improvements.
Major differences between members of these series are the UVLO thresholds and maximum duty-cycle ranges. The TLx842B and TLx843B devices can operate to duty cycles approaching 100%. A duty-cycle range of 0% to 50% is obtained by the TLx844B and TLx845B by the addition of an internal toggle flip-flop, which blanks the output off every other clock cycle. The TL284xB-series devices are characterized for operation from -40°C to 85°C. The TL384xB-series devices are characterized for operation from 0°C to 70°C.
Features
- Low Start-Up Current (< 0.5 mA)
- Trimmed Oscillator Discharge Current
- Current Mode Operation to 500 kHz
- Automatic Feed-Forward Compensation
- Latching PWM for Cycle-by-Cycle Current Limiting
- Internally Trimmed Reference With Undervoltage Lockout
- High-Current Totem-Pole Output
- Undervoltage Lockout With Hysteresis
- Double-Pulse Suppression
Compliance & Export Codes
| Type | Details |
|---|---|
| RoHS | |
| ECCN | - |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |
| Type | Details |
|---|---|
| RoHS | |
| ECCN | - |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| Type | Details |
|---|---|
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |