LT1242CS8 - Brand New AC DC Converters, Offline Switchers
-
Description
The LT1242CS8 is an 8-pin, fixed frequency, current mode, pulse width modulator. It is an improved version of the industry standard UC1842 series, offering both improved speed and lower quiescent current. This model is optimized for off-line and DC/DC converter applications and features a temperature-compensated reference, high-gain error amplifier, current sensing comparator, and a high-current totem pole output stage designed for driving power MOSFETs. The start-up current has been reduced to less than 250µA.
Specifications and features
- Low Start-Up Current: < 250µA
- 50ns Current Sense Delay
- Current Mode Operation: Up 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
Application Scenarios
- Off-Line Converters
- DC/DC Converters
Comparison
Advantages- Improved speed and lower quiescent current
- Optimized for off-line and DC/DC converter applications
- Features a temperature-compensated reference and high-gain error amplifier
- High-current totem pole output stage for driving power MOSFETs
Disadvantages- None mentioned
-
Similar parts: 1587 , Click to view
-
Datasheet
-
Shopping guide
Delivery period:
- - Will ship out in 2-3 days
- - DHL Express: 3-7 business days
- - DHL eCommerce: 12-22 business days
- - FedEx International Priority: 3-7 business days
- - EMS: 10-15 business days
Shipping fee:
- - Automatic Email notification (above 5 times)
- - View in your order page
Shipping option:
DHL, FedEx, EMS, SF Express, and Registered Air MailShipping tracking:
- - Automatic Email notification (above 5 times)
- - View in your order page
How to Buy:
- - In-stock, Add to cart > Check out > Submit order > Complete payment >Delivery.
- - Inquiry, Add to inquiry sheet/Submit bom/inquire file/Send email us > Quote > Place order > Complete payment >Delivery.
- View more
Payment:
- - Paypal,Credit Card includes Visa, Master, American Express.
- - Wire transfer, include Local bank transfer.
- - Western Union.
- View more
-
Popular parts of the same kind
- Datasheet: Download LT1242CS8
- Chipdatas Part: CD92-LT1242CS8
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/10/06 15:42 +0800
-
- Full Refund if you don't receive your order
- Full or Partial Refund , If the item is not as described
-
The fee is charged according to the rule of PayPal.
-
The fee is charged according to the rule of PayPal.
-
Western Union charge US$0.00 banking fee.
-
We recommend to use bank transfer for large orders to save on handling fees.
-
DHL(www.dhl.com)
$40 limited time offer. -
UPS(www.ups.com)
$40 limited time offer. -
FedEx(www.fedex.com)
$40 limited time offer. -
Registered Mail(www.singpost.com)
Free shipping without minimum order.