ST UC3844BD1013TR
Boost, Flyback Regulator Positive, Isolation Capable Output Step-Up, Step-Up/Step-Down DC-DC Controller IC 8-SOIC
Marques: STMicroelectronics, Inc
Pièce Fabricant #: UC3844BD1013TR
Fiche de données: UC3844BD1013TR Datasheet (PDF)
Colis/Caisse: SO-8
Statut RoHS:
État des stocks: 3213 pièces, nouveau original
type de produit: CI de gestion de l'alimentation
Warranty: 1 Year Ovaga Warranty - Find Out More
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*Tous les prix sont en USD
Qté | Prix unitaire | Prix ext |
---|---|---|
1 | $0,411 | $0,411 |
10 | $0,328 | $3,280 |
30 | $0,294 | $8,820 |
100 | $0,249 | $24,900 |
500 | $0,226 | $113,000 |
1000 | $0,215 | $215,000 |
In Stock:3213 PCS
UC3844BD1013TR 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 |
---|---|---|---|
Manufacturer: | STMicroelectronics | Product Category: | Switching Controllers |
RoHS: | Y | Topology: | Boost, Flyback |
Number of Outputs: | 1 Output | Switching Frequency: | 500 kHz |
Duty Cycle - Max: | 50 % | Output Voltage: | 4.90 V to 5.10 V |
Output Current: | 1000 mA | Minimum Operating Temperature: | - 40 C |
Maximum Operating Temperature: | + 150 C | Mounting Style: | SMD/SMT |
Package / Case: | SO-8 | Packaging: | Reel |
Series: | UC3844B | Type: | Current Mode PWM Controllers |
Brand: | STMicroelectronics | Fall Time: | 50 ns |
Operating Supply Voltage: | 30 V | Product Type: | Switching Controllers |
Rise Time: | 50 ns | Factory Pack Quantity: | 2500 |
Subcategory: | PMIC - Power Management ICs | Unit Weight: | 0.017870 oz |
Tags | UC3844BD101, UC3844BD10, UC3844BD1, UC3844BD, UC3844B, UC3844, UC384, UC38, UC3 | feature-type | Current Mode PWM Controller |
feature-maximum-power-dissipation-mw | 1250 | feature-packaging | Tape and Reel |
feature-rad-hard | feature-pin-count | 8 | |
feature-supplier-package | SO N | feature-standard-package-name1 | SO |
feature-cecc-qualified | No | feature-esd-protection | |
feature-escc-qualified | feature-military | No | |
feature-aec-qualified | No | feature-aec-qualified-number | |
feature-auto-motive | No | feature-p-pap | No |
feature-eccn-code | EAR99 | feature-svhc | No |
feature-svhc-exceeds-threshold | No |
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
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Étape1 :Produit
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Étape2 :Emballage sous vide
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Étape3 :Sac antistatique
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Étape4 :Emballage individuel
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Étape5 :Boîtes d'emballage
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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
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The UC3844BD1013TR chip is a pulse width modulation (PWM) controller commonly used in switch-mode power supply (SMPS) applications. It provides precise control over the output voltage and current by modulating the duty cycle of the switching transistor. The chip includes features like overvoltage protection, soft start, and current limiting, making it suitable for various power management applications.
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Equivalent
Some equivalent products of the UC3844BD1013TR chip include the UC3844BN, UC3844BNG, UC3844BD1R2G, and UC3844BD1R2G. These chips are similar in function and can be used interchangeably in many applications. -
Features
The UC3844BD1013TR is a pulse-width modulation (PWM) controller IC. It features a 1A peak output current, precise voltage reference, high-frequency operation, programmable soft-start, pulse-by-pulse current limiting, protection against feedback loop disconnection, and an open collector output transistor for driving power MOSFETs. -
Pinout
The UC3844BD1013TR is an IC (integrated circuit) with a 14-pin count. It is commonly used as a current-mode PWM controller in switch-mode power supplies. Its functions include regulating the output voltage, providing accurate feedback control, and protecting against overvoltages and overcurrents. -
Manufacturer
The manufacturer of the UC3844BD1013TR is Texas Instruments. Texas Instruments is a multinational semiconductor company that specializes in designing and manufacturing integrated circuits and other electronic components. -
Application Field
The UC3844BD1013TR is a voltage-mode PWM controller that is commonly used in various applications such as switched-mode power supplies (SMPS), battery chargers, and LED drivers. It provides control over the duty cycle of the PWM signal, making it suitable for applications requiring precise output voltage or current regulation. -
Package
The UC3844BD1013TR chip comes in a SOIC-8 package type, with a body size of 3.9mm x 4.9mm and a lead form of gull-wing.
Fiche de données PDF
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Garantie de qualité de 365 jours pour tous les produits