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Référence fabricant
UC3844BN
UC3844B Series 250 kHz High Performance Current Mode PWM Controller - DIP-8
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| Nom du fabricant: | STMicroelectronics | ||||||||||
| Emballage standard: |
Product Variant Information section
Emballages disponiblesQté d'emballage(s) :50 par Tube |
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| Code de date: | 2436 | ||||||||||
STMicroelectronics UC3844BN - Spécifications du produit
Informations de livraison:
Code HTS:
ECCN:
Informations PCN:
Statut du produit:
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https://futureelec.wufoo.com/forms/?formname=r8bzou01ws8brs&field12=NA&field16=fr&field2=UC3844BN&field4=STMicroelectronics&field18=https://p1na.futureelectronics.com/fr/p/semiconductors--analog--power-controllers--pwm-controllers/uc3844bn-stmicroelectronics-3291812
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https://futureelec.wufoo.com/forms/?formname=r8bzou01ws8brs&field12=NA&field16=fr&field2=UC3844BN&field4=STMicroelectronics&field18=https://p1na.futureelectronics.com/fr/p/semiconductors--analog--power-controllers--pwm-controllers/uc3844bn-stmicroelectronics-3291812
STMicroelectronics UC3844BN - Caractéristiques techniques
| Supply Current-Max: | 17mA |
| Supply Voltage: | 10V to 30V |
| Frequency-Max: | 250kHz |
| Input Voltage: | 2.58V |
| Topology: | Boost/Flyback |
| Rated Power: | 1.25W |
| Duty Cycle-Min: | 0% |
| Duty Cycle-Max: | 50% |
| Operating Temp Range: | -40°C to +150°C |
| Storage Temperature Range: | -65°C to +150°C |
| Output Current: | 1mA |
| Thermal Resistance: | 100°C/W |
Fonctionnalités et applications
A precision reference trimmed for accuracy at the error amp input, logic to insure latched operation, a PWM comparator which 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 in the offstate.
Features:
- Trimmed Oscillator for Precise frequency Control
- Oscillator Frequency Guaranteed at 250 Hz
- Current Mode Operation to 500 kHz
- Automatic Feed Forward Copensation
- Latching PWM for Cycle-by-cycle Current Limiting
- Internally Trimmed Reference with Undervoltage lockout
- High Current totem pole output Undervoltage Lockout With Hystersis
- Low Start-up and Operating Current
Emballages disponibles
Qté d'emballage(s) :
50 par Tube
