UC1843A by Microchip Technology
PWM Controller flyback or forward - Low start-up current (0.5mA max.) 500KHz op
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View Full Pricing & Stock ComparisonFeatures
| Optimized For Off-Line Control |
| Low Start-Up Current (<1mA) |
| Automatic Feed Forward Compensation |
| Trimmed Oscillator Discharge Current |
| Pulse-By-Pulse Current Limiting |
| Enhanced Load Response Characteristics - |
| Double-Pulse Suppression |
| High-Current Totem-Pole Output (1A Peak) |
| Internally Trimmed Band-gap Reference |
| 500kHz Operation Under-voltage Lockout: SG1843 - 8.4 volts |
| Low Shoot-Through Current <75mA Over Temperature |
Specifications
| Regulator Type | HI Rel Switching Regulators |
|---|---|
| Configuration | Current Mode PWMs |
Resources
Data Sheets |
|---|
| uc184xa Datasheet |
Application Notes |
|---|
| TN-206:Voltage-Mode, Current-Mode (and Hysteretic Control) |
Certifications |
|---|
| Garden Grove AS9100D (SG Products) |
UC1843A Analog and Mixed-Signal by Texas Instruments
Current Mode PWM Controller 8-CDIP -55 to 125
Specifications
| Features | Error Amplifier,Multi-topology |
|---|---|
| Package size | mm2:W x L (PKG) : See datasheet (CDIP),[pf]20LCCC[/pf]: 79 mm2: 8.89 x 8.89 (LCCC|20) |
| UVLO thresholds on/off(V) | 8.4/7.6 |
| Rating | Military |
| Duty cycle(Max)(%) | 100 |
| Operating temperature range(C) | -55 to 125 |
| Control method | Current |
| Topology | Boost,Flyback,Forward |
| Frequency(Max)(kHz) | 500 |
| Package Group | CDIP|8,LCCC|20 |
| Gate drive(Typ)(A) | 1 |
Frequently Asked Questions
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