UC3843BN in Tube by STMicroelectronics | Régulateurs de commutation | Future Electronics
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STMicroelectronics | UC3843BN

Référence fabricant

UC3843BN

UC3843B Series 30 V 17 mA High Performance Current Mode PWM Controller - DIP-8

Modèle ECAD:
Nom du fabricant: STMicroelectronics
Emballage standard:
Product Variant Information section
Code de date: 2429
Product Specification Section
STMicroelectronics UC3843BN - Caractéristiques techniques
Attributes Table
Méthode de montage : Through Hole
Fonctionnalités et applications
The UC3843BN is of control ICs provides the necessary features to implement off-line or DC to DC fixed frequency current mode control schemes with a minimal external parts count. Internally implemented circuits include a trimmed oscillator for precise DUTY CYCLE CONTROL under voltage lockout featuring start-up current less than 0.5 A.

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

View the Complete family of UC384 PWM Controllers

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Pricing Section
Stock global :
0
États-Unis:
0
Sur commande :
0
Stock d'usine :Stock d'usine :
0
Délai d'usine :
14 Semaines
Commande minimale :
4000
Multiples de :
50
Total 
1 360,00 $
USD
Quantité
Prix unitaire
50
$0.365
250
$0.355
1 000
$0.345
2 500
$0.34
6 250+
$0.325
Product Variant Information section
Produits apparentés
UC3844BN
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UC3844B Series 250 kHz High Performance Current Mode PWM Controller - DIP-8
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UC3844BN
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UC3844B Series 250 kHz High Performance Current Mode PWM Controller - DIP-8
À partir de : $0.36 (USD)
UC3845BN
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UC3845 Series 15 V 17 A High Performance Current Mode Controller - PDIP-8
À partir de : $0.36 (USD)