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High Speed Current Mode Pulse Width Modulators; Package: PDIP; No of Pins: 8; Temperature Range: -40°C to +85°C
|Manufacturer :||Analog Devices, Inc|
|Product Categories :||PMIC - Voltage Regulators - PWMs (Pulse Width Modulation)|
|Datasheet:||LT1243IN8 Datasheet (PDF)|
|RoHs Status:||Lead free / RoHS Compliant|
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LT1243IN8 Product Details
The LT1241 series devices are 8-pin, fixed frequency, current mode, pulse width modulators. They are improved plug compatible versions of the industry standard UC1842 series. These devices have both improved speed and lower quiescent current. The LT1241 series is optimized for off-line and DC/DC converter applications. They contain a temperature-compensated reference, high gain error amplifier, current sensing comparator and a high current totem pole output stage ideally suited to driving power MOSFETs. Start-up current has been reduced to less than 250µA. Cross-conduction current spikes in the output stage have been eliminated, making 500kHz operation practical. Several new features have been incorporated. Leading edge blanking has been added to the current sense comparator. Trims have been added to the oscillator circuit for both frequency and sink current, and both of these parameters are tightly specified. The output stage is clamped to a maximum VOUT of 18V in the on state. The output and the reference output are actively pulled low during undervoltage lockout.
- Low Start-Up Current: <250µA
- 50ns Current Sense Delay
- Current Mode Operation: To 500kHz
- Pin Compatible with UC1842 Series
- Undervoltage Lockout with Hysteresis
- No Cross-Conduction Current
- Trimmed Bandgap Reference
- 1A Totem Pole Output
- Trimmed Oscillator Frequency and Sink Current
- Active Pull-Down on Reference and Output During Undervoltage Lockout
- High Level Output Clamp: 18V
- Current Sense Leading Edge Blanking
- Off-Line Converters
- DC/DC Converters
- High Speed Current Mode Pulse Width Modulators
- Min Operating Thresholdtyp | V
- Vinmin | V
- Vinmax | V
- Isupplytyp | A
- Output Currenttyp | A
- Frequencytyp | Hz
LT1243 Technical Documentation/Data sheet
LT1243IN8 Related Products
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tutto ok, tiene la carica a lungo
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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.
- Q: How does Jotrin guarantee that LT1243IN8 is the original manufacturer or agent of ADI?
- We have a professional business development department to strictly test and verify the qualifications of ADI original manufacturers and agents. All ADI suppliers must pass the qualification review before they can publish their LT1243IN8 devices; we pay more attention to the channels and quality of LT1243IN8 products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
- Q: How to find the detailed information of LT1243IN8 chips? Including ADI original factory information, PMIC - Voltage Regulators - PWMs (Pulse Width Modulation) application, LT1243IN8 pictures?
- You can use Jotrin's intelligent search engine, or filter by Power Control ; PWM Controllers category, or find it through Analog Devices, Inc Information page.
- Q: Are the ADI's LT1243IN8 price and stock displayed on the platform accurate?
- The ADI's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for LT1243IN8, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
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- Q: What is the process for returns or replacement of LT1243IN8?
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 LT1243IN8 we delivered, we will accept the replacement or return of the LT1243IN8 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 LT1243IN8.
(3)The LT1243IN8 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 LT1243IN8 datasheet pdf, LT1243 pin diagram?
- Need any After-Sales service, please feel free contact us: email@example.com
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