ВСЕ КАТЕГОРИИ
PWM Controller, Current Mode, 11V to 30V Supply, 500kHz, 1.6Vlow & 13.Vhigh/200mA out, SOIC-8
| Производитель : | STMicroelectronics, Inc |
|---|---|
| Упаковка/Ящик : | SO-8 |
| категорий продукта : | Current Mode PWM Controllers |
| Datasheet: | UC3844BD1013TR Datasheet (PDF) |
| RoHs Status: | Lead free/RoHS Compliant |
| Наличность: | 11456 |
Количество
Запрос он-лайн
UC3844BD1013TR информация о продукте
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.
Особенность
- LOWSTART-UPANDOPERATINGCURRENT
- UNDERVOLTAGELOCKOUTWITHHYSTERESIS
- INTERNALLYTRIMMEDREFERENCEWITHUNDERVOLTAGELOCKOUT
- CURRENTLIMITING
- TRIMMEDOSCILLATORFORPRECISEFREQUENCYCONTROL
- CURRENTMODEOPERATIONTO500kHz
- OSCILLATORFREQUENCYGUARANTEEDAT250kHz
- LATCHINGPWMFORCYCLE-BY-CYCLE
- HIGHCURRENTTOTEMPOLEOUTPUT
- AUTOMATICFEEDFORWARDCOMPENSATION
(Картинка: Diagram)
Технические параметры
- Switching Frequency
- 500 kHz
- Rise Time
- 50 ns
- Fall Time
- 50 ns
- Operating Supply Voltage
- 30 V
- Number of Outputs
- 1
- Maximum Operating Temperature
- + 150 C
- Mounting Style
- SMD/SMT
- Package / Case
- SO-8
- Minimum Operating Temperature
- - 40 C
- Output Current
- 1000 mA
- Output Voltage
- 4.90 V to 5.10 V
- Packaging
- Reel
- Factory Pack Quantity
- 2500
- Topology
- Boost, Flyback
UC3844BD1013TR Datasheet
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UC3844B
UC3844BD1013TR Связанные специальные
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упаковка
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Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.
We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.
After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.
Гарантии
1.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.
2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.
FAQ:
- Q: How does Jotrin guarantee that UC3844BD1013TR is the original manufacturer or agent of ST?
- We have a professional business development department to strictly test and verify the qualifications of ST original manufacturers and agents. All ST suppliers must pass the qualification review before they can publish their UC3844BD1013TR devices; we pay more attention to the channels and quality of UC3844BD1013TR products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
- Q: How to find the detailed information of UC3844BD1013TR chips? Including ST original factory information, Current Mode PWM Controllers application, UC3844BD1013TR pictures?
- You can use Jotrin's intelligent search engine, or filter by Power Management ; AC-DC Converters ; PWM Controllers category, or find it through STMicroelectronics, Inc Information page.
- Q: Are the ST's UC3844BD1013TR price and stock displayed on the platform accurate?
- The ST's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for UC3844BD1013TR, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
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Yes. We accept offline orders.
We can provide order placement service. You only need to log in, click "My Orders" to enter the transaction management, and you will see the "Order Details" interface. After checking it, select all and click "Place Order". In addition, you can enjoy coupons or other selected gifts when placing orders online. - Q: What forms of payment can I use in Jotrin?
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Note: It may take up to 24 hours before carriers will display tracking information. In normal conditions, Express delivery needs 3-5 days, Registered Mail needs 25-60 days. - Q: What is the process for returns or replacement of UC3844BD1013TR?
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All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment.
If there is something wrong with the UC3844BD1013TR we delivered, we will accept the replacement or return of the UC3844BD1013TR only when all of the below conditions are fulfilled:
(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.
(2)We are informed of the defect described above within 90 days after the delivery of UC3844BD1013TR.
(3)The UC3844BD1013TR is unused and only in the original unpacked packaging.
Two processes to return the products:
(1)Inform us within 90 days
(2)Obtain Requesting Return Authorizations
More details about return electronic components please see our Return & Change Policy. - Q: How to contact us and get support, such as UC3844BD1013TR datasheet pdf, UC3844B pin diagram?
- Need any After-Sales service, please feel free contact us: sales@jotrin.com
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