- RS-stocknr.:
- 922-3451
- Fabrikantnummer:
- UC3843AD8
- Fabrikant:
- Texas Instruments
225 op voorraad - levertijd is 1 werkdag(en).
Toegevoegd
Prijs Elk (in eentube van 75)
€ 0,877
(excl. BTW)
€ 1,061
(incl. BTW)
Aantal stuks | Per stuk | Per tube* |
75 - 75 | € 0,877 | € 65,775 |
150 - 300 | € 0,789 | € 59,175 |
375 - 675 | € 0,745 | € 55,875 |
750 - 1050 | € 0,701 | € 52,575 |
1125 + | € 0,614 | € 46,05 |
*prijsindicatie |
- RS-stocknr.:
- 922-3451
- Fabrikantnummer:
- UC3843AD8
- Fabrikant:
- Texas Instruments
Wetgeving en compliance
Productomschrijving
Flyback Controller, Current Control, UC18/UC28/UC38 Series, Texas Instruments
The isolated-flyback power supply controller provides Constant-Voltage (CV) and Constant-Current (CC) output regulation to improve transient response to large load steps. Primary-Side Regulation (PSR) eliminates the need for an Optocoupler.
The Texas Instruments UC3843A family of control devices is a pin-for-pin compatible improved version of theUCx84x family. Providing the necessary features to control current-mode or switched-mode power supplies, this family of devices has many improved features: start-up current is less than 0.5 mA, oscillator discharge is trimmed to 8.3 mA, and during UVLO, the output stage can sink at least 10mA at less than 1.2 V for VCC over 5 V.
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
Under voltage Lockout With Hysteresis
Double Pulse Suppression
High-Current Totem Pole Output
Internally-Trimmed Bandgap Reference
Up to 500-kHz Operation
Low Start-Up Current (< 0.5 mA)
Trimmed Oscillator Discharge Current
Automatic Feedforward Compensation
Pulse-by-Pulse Current Limiting
Enhanced Load Response Characteristics
Under voltage Lockout With Hysteresis
Double Pulse Suppression
High-Current Totem Pole Output
Internally-Trimmed Bandgap Reference
Up to 500-kHz Operation
Flyback Controllers, Texas Instruments
Current-Mode and Voltage-Mode PWM Controller
Primary-Side Regulation
Peak Power Mode
Low Power
Primary-Side Regulation
Peak Power Mode
Low Power
Specificaties
Kenmerk | Waarde |
---|---|
Maximum Switching Frequency | 500 kHz |
Output Current | 1 A |
Number of Outputs | 1 |
Control Method | Current |
Mounting Type | Surface Mount |
Fall Time | 50ns |
Rise Time | 50ns |
Package Type | SOIC |
Pin Count | 8 |
Topology | Boost, Buck, Flyback, Forward |
Maximum Duty Cycle | 100% |
Dimensions | 4.9 x 3.91 x 1.58mm |
Length | 4.9mm |
PWM Controller Type | Current Mode |
Width | 3.91mm |
Height | 1.58mm |
Minimum Operating Temperature | 0 °C |
Maximum Operating Temperature | +70 °C |