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Référence fabricant

UC2843BN

UC2843 Series Current Mode PWM Controller Voltage Regulator - DIP-8

Modèle ECAD:
Nom du fabricant: STMicroelectronics
Emballage standard:
Code de date:
Product Specification Section
STMicroelectronics UC2843BN - Caractéristiques techniques
Attributes Table
Supply Current-Max: 17A
Supply Voltage: 30V
Frequency-Max: 500kHz
Duty Cycle-Max: 100%
Operating Temp Range: -25°C to +85°C
Méthode de montage : Through Hole
Fonctionnalités et applications
The UC2843BN 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 0.5mA.

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 250kHz
  • 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 UC284 Current Mode Controllers

Pricing Section
Stock global :
0
d’Allemagne (En ligne seulement):
0
Sur commande :Order inventroy details
2 350
Stock d'usine :Stock d'usine :
0
Délai d'usine :
14 Semaines
Commande minimale :
4000
Multiples de :
50
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Total 
1 660,00 $
USD
Quantité
Prix Internet
50
$0.47
250
$0.45
1 250
$0.425
3 750
$0.415
10 000+
$0.39