ChongMing Group (HK) Int'l Co., Ltd
| Payment Terms | T/T, Western Union,PayPal |
| Supply Ability | 290PCS |
| Delivery Time | 1 Day |
| Packaging Details | please contact me for details |
| Description | Boost, Flyback Regulator Positive, Isolation Capable Output Step-Up, Step-Up/Step-Down DC-DC Controller IC 8-SOIC |
| VCC, VC | 30 V |
| (ICC + IZ) | 30 mA |
| IO | 1.0 A |
| W | 5.0 J |
| Vin | − 0.3 to + 5.5 V |
| Brand Name | ONSEMI |
| Model Number | UC3843BD1R2G |
| Certification | Original Factory Pack |
| Place of Origin | Original |
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Product Specification
| Payment Terms | T/T, Western Union,PayPal | Supply Ability | 290PCS |
| Delivery Time | 1 Day | Packaging Details | please contact me for details |
| Description | Boost, Flyback Regulator Positive, Isolation Capable Output Step-Up, Step-Up/Step-Down DC-DC Controller IC 8-SOIC | VCC, VC | 30 V |
| (ICC + IZ) | 30 mA | IO | 1.0 A |
| W | 5.0 J | Vin | − 0.3 to + 5.5 V |
| Brand Name | ONSEMI | Model Number | UC3843BD1R2G |
| Certification | Original Factory Pack | Place of Origin | Original |
| High Light | ic programmer circuit ，programmable audio chip | ||
Features
• Trimmed Oscillator for Precise Frequency Control
• Oscillator Frequency Guaranteed at 250 kHz
• Current Mode Operation to 500 kHz
• Automatic Feed Forward Compensation
• Latching PWM for Cycle−By−Cycle Current Limiting
• Internally Trimmed Reference with Undervoltage Lockout
• High Current Totem Pole Output
• Undervoltage Lockout with Hysteresis
• Low Startup and Operating Current
• Pb−Free Packages are Available
The UC3842B, UC3843B series are high performance fixed frequency current mode controllers. They are specifically designed for Off−Line and DC−DC converter applications offering the designer a cost−effective solution with minimal external components. These integrated circuits feature a trimmed oscillator for precise duty cycle control, a temperature compensated reference, high gain error amplifier, current sensing comparator, and a high current totem pole output ideally suited for driving a power MOSFET.
]
Also included are protective features consisting of input and reference undervoltage lockouts each with hysteresis, cycle−by−cycle current limiting, programmable output deadtime, and a latch for single pulse metering.
These devices are available in an 8−pin dual−in−line and surface mount (SOIC−8) plastic package as well as the 14−pin plastic surface mount (SOIC−14). The SOIC−14 package has separate power and ground pins for the totem pole output stage.
The UCX842B has UVLO thresholds of 16 V (on) and 10 V (off), ideally suited for off−line converters. The UCX843B is tailored for lower voltage applications having UVLO thresholds of 8.5 V (on) and 7.6 V (off).
STOCK LIST
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Company Details
Business Type:
Distributor/Wholesaler
Year Established:
2008
Total Annual:
5000000-7000000
Employee Number:
80~100
Ecer Certification：
Active Member
CHONGMING GROUP (HK) INT'L CO., LTD. located in Hong Kong and Shenzhen. We are an independent Distributor of Electronic Components,established in 2008. AS a growing fast company, CM GROUP is renowned for its world-class efficiency, excellent services, and extraordinary ability to supply electron... CHONGMING GROUP (HK) INT'L CO., LTD. located in Hong Kong and Shenzhen. We are an independent Distributor of Electronic Components,established in 2008. AS a growing fast company, CM GROUP is renowned for its world-class efficiency, excellent services, and extraordinary ability to supply electron...
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