UC1843AMDREP Enhanced Current-Mode PWM Controller Integrated Circuit Chip with 500 kHz Operation and Low Start-Up Current (<0.5 mA)
Price:
Contact for Sample
MOQ:
10
Delivery Time:
3-5 work days
Brand:
Original Factory
Product Description
UC1843AMDREP Integrated Circuit Chip Enhanced Current-Mode PWM Controller
Product Description
The UC1843AMDREP control IC is a pin-for-pin compatible improved version of the UC3842/3/4/5 family, designed to control current mode switched mode power supplies. Key improvements include:
- Start up current guaranteed to be less than 0.5 mA
- Oscillator discharge trimmed to 8.3 mA
- During under voltage lockout, the output stage can sink at least 10 mA at less than 1.2 V for VCC over 5 V
Specifications
| Applications | PWM Controller |
|---|---|
| Voltage - Input | -0.3V ~ 6.3V |
| Voltage - Supply | 7.9V ~ 30V |
| Current - Supply | 11 mA |
| Operating Temperature | -55°C ~ 125°C (TA) |
Features
- Controlled Baseline
- One Assembly/Test Site, One Fabrication Site
- Extended Temperature Performance of -55°C to 125°C
- Enhanced Diminishing Manufacturing Sources (DMS) Support
- Enhanced Product Change Notification
- Qualification Pedigree
- Optimized for Off-line and DC-to-DC Converters
- Low Start Up Current (<0.5 mA)
- Trimmed Oscillator Discharge Current
- Automatic Feed Forward Compensation
- Pulse-by-Pulse Current Limiting
- Enhanced Load Response Characteristics
- Under-Voltage Lockout With Hysteresis
- Double Pulse Suppression
- High Current Totem Pole Output
- Internally Trimmed Bandgap Reference
- 500 kHz Operation
- Low RO Error Amp
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Frequently Asked Questions
Q: Are your products original?
A: Yes, all products are original, new original import is our purpose.
Q: Which Certificates do you have?
A: We are ISO 9001:2015 Certified Company and member of ERAI.
Q: Can you support small quantity order or sample? Is the sample free?
A: Yes, we support sample order and small order. Sample cost is different according to your order or project.
Q: How to ship my order? Is it safe?
A: We use express to ship, such as DHL, Fedex, UPS, TNT, EMS. We can also use your suggested forwarder. Products will be in good packing and ensure the safety and we are responsible to product damage to your order.
Q: What about the lead time?
A: We can ship stock parts within 5 working days. If without stock, we will confirm lead time for you based on your order quantity.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
ShenZhen Mingjiada Electronics Co.,Ltd.
Location
1239 New Asia Guoli Building Zhenzhong Road.,Futian district Shenzhen China
Contact Person
Sales Manager