UC3845BD1013TR
Switching Controllers 0.5mA Current Mode
Marques: STMicroelectronics
Pièce Fabricant #: UC3845BD1013TR
Fiche de données: UC3845BD1013TR Fiche de données (PDF)
Colis/Caisse: 8-SOIC(0.154",3.90mmWidth)
Statut RoHS:
État des stocks: 7741 pièces, nouveau original
Warranty: 1 Year Ovaga Warranty - Find Out More
0
1
*Tous les prix sont en USD
Qté | Prix unitaire | Prix ext |
---|---|---|
5 | $0,272 | $1,360 |
50 | $0,218 | $10,900 |
150 | $0,194 | $29,100 |
500 | $0,165 | $82,500 |
2500 | $0,152 | $380,000 |
5000 | $0,144 | $720,000 |
In Stock:7741 PCS
UC3845BD1013TR Description générale
The UC284xB family 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 off-state.Differences between members of this family are the under-voltage lockout thresholds and maximum duty cycle ranges. The UC2842B and UC2844B have UVLO thresholds of 16V (on) and 10V (off), ideally suited off-line applications The corresponding thresholds for the UC2843B and UC2845B are 8.5V and 7.9V. The UC2842B and UC2843B can operate to duty cycles approaching 100%. A range of the zero to < 50 % is obtained by the UC2844B and UC2845B by the addition of an internal toggle flip flop which blanks the output off every other clock cycle.
Caractéristiques
- LOW START-UP AND OPERATING CURRENT
- UNDERVOLTAGE LOCKOUT WITH HYSTERESIS
- INTERNALLY TRIMMED REFERENCE WITH UNDERVOLTAGE LOCKOUT
- CURRENT LIMITING
- TRIMMED OSCILLATOR FOR PRECISE FREQUENCY CONTROL
- CURRENT MODE OPERATION TO 500kHz
- OSCILLATOR FREQUENCY GUARANTEED AT 250kHz
- LATCHING PWM FOR CYCLE-BY-CYCLE
- HIGH CURRENT TOTEM POLE OUTPUT
- AUTOMATIC FEED FORWARD COMPENSATION
Caractéristiques
Paramètre | Valeur | Paramètre | Valeur |
---|---|---|---|
Product Status | Active | Output Type | Transistor Driver |
Function | Step-Up, Step-Up/Step-Down | Output Configuration | Positive, Isolation Capable |
Topology | Boost, Flyback | Number of Outputs | 1 |
Output Phases | 1 | Voltage - Supply (Vcc/Vdd) | 7.6V ~ 30V |
Frequency - Switching | Up to 500kHz | Duty Cycle (Max) | 48% |
Synchronous Rectifier | No | Clock Sync | No |
Control Features | Frequency Control | Operating Temperature | -40°C ~ 150°C (TJ) |
Mounting Type | Surface Mount | Package / Case | 8-SOIC (0.154", 3.90mm Width) |
Supplier Device Package | 8-SOIC |
Expédition
Type d'expédition | Frais d'expédition | Délai de mise en œuvre | |
---|---|---|---|
DHL | $20.00-$40.00 (0.50 KG) | 2-5 jours | |
FedEx | $20.00-$40.00 (0.50 KG) | 2-5 jours | |
UPS | $20.00-$40.00 (0.50 KG) | 2-5 jours | |
TNT | $20.00-$40.00 (0.50 KG) | 2-5 jours | |
EMS | $20.00-$40.00 (0.50 KG) | 2-5 jours | |
LA POSTE AÉRIENNE ENREGISTRÉE | $20.00-$40.00 (0.50 KG) | 2-5 jours |
Délai de traitement : les frais d'expédition dépendent des différentes zones et pays.
Paiement
Modalités de paiement | Frais de main | |
---|---|---|
Virement bancaire | facturer des frais bancaires de 30,00 $ US. | |
Pay Pal | facturer des frais de service de 4,0 %. | |
Carte de crédit | facturez des frais de service de 3,5%. | |
Western union | charge US.00 banking fee. | |
Paiement de Petit Montant | facturer des frais bancaires de 0,00 $ US. |
Garanties
1. Les composants électroniques que vous achetez incluent une garantie de 365 jours, nous garantissons la qualité du produit.
2. Si certains des articles que vous avez reçus ne sont pas de qualité parfaite, nous organiserons de manière responsable votre remboursement ou votre remplacement. Mais les articles doivent rester dans leur état d’origine.
Emballage
-
Étape1 :Produit
-
Étape2 :Emballage sous vide
-
Étape3 :Sac antistatique
-
Étape4 :Emballage individuel
-
Étape5 :Boîtes d'emballage
-
Étape6 :étiquette d'expédition à code-barres
Tous les produits seront emballés dans un sac antistatique. Expédié avec une protection antistatique ESD.
L'étiquette de l'emballage extérieur ESD utilisera les informations de notre société : numéro de pièce, marque et quantité.
Nous inspecterons toutes les marchandises avant expédition, garantirons que tous les produits sont en bon état et que les pièces sont neuves et correspondent à la fiche technique originale.
Une fois que toutes les marchandises sont garanties sans problème après l'emballage, nous les emballerons en toute sécurité et les enverrons par Global Express. Il présente une excellente résistance à la perforation et à la déchirure ainsi qu’une bonne intégrité du joint.
Points de pièce
-
The UC3845BD1013TR is a PWM controller chip used in power supply applications. It regulates the output voltage by adjusting the duty cycle of a switching transistor. This chip is commonly utilized in DC-DC converters, battery chargers, and motor control circuits due to its reliability and efficiency.
-
Equivalent
The equivalent products of UC3845BD1013TR chip are UC3845B, UC3845BD1, UC3845BD1013TR/IQ, and UC3845BD1013TRT. These chips are all part of the UC3845B family of current-mode PWM controllers with integrated high-voltage startup circuits. -
Features
1. Current mode PWM controller 2. High output switching frequency (500 kHz) 3. Programmable soft-start function 4. Integrated high voltage startup circuit 5. Error amplifier with precision reference 6. Under-voltage lockout protection 7. Over-current protection 8. Adjustable dead-time control 9. Available in SOIC-14 package. -
Pinout
UC3845BD1013TR is a Pulse Width Modulation (PWM) controller with 8 pins. It is used for controlling power supply applications in various electronic devices. The pin functions are: 1. VCC 2. FB 3. COMP 4. INV 5. RT/CT 6. GND 7. OUT 8. SYNC. -
Manufacturer
The manufacturer of UC3845BD1013TR is STMicroelectronics. It is a multinational electronics and semiconductor company headquartered in Geneva, Switzerland. STMicroelectronics is known for designing and manufacturing a wide range of products including microcontrollers, power systems, sensors, and analog integrated circuits for various industries such as automotive, industrial, and telecommunications. -
Application Field
UC3845BD1013TR is commonly used in power management applications such as offline flyback and forward converters, power factor correction, and voltage regulator modules. It is also used in applications requiring high efficiency and reliability, such as industrial power supplies, LED drivers, and battery chargers. -
Package
The UC3845BD1013TR chip is available in a SOP-8 form factor with a size of 5.85mm x 4.4mm. It is commonly housed in a surface-mount package.
Nous fournissons des produits de haute qualité, un service attentionné et une garantie après-vente
-
Nous avons des produits riches, pouvons répondre à vos différents besoins.
-
La quantité minimum de commande commence à partir de 1 pièce.
-
Les frais d'expédition internationaux les plus bas commencent à partir de 0,00 $
-
Garantie de qualité de 365 jours pour tous les produits