Images are for reference only See Product Specifications
TI UCC28700DBVR
Converter Offline Flyback Topology 1kHz ~ 130kHz SOT-23-6
Brands: TI
Mfr.Part #: UCC28700DBVR
Datasheet: UCC28700DBVR Datasheet (PDF)
Package/Case: SOT23-6
RoHS Status:
Stock Condition: 7305 pcs, New Original
Product Type: Current Mode PWM Controllers
0
1
*All prices are in USD
| Qty | Unit Price | Ext Price |
|---|---|---|
| 1 | $0.856 | $0.856 |
| 10 | $0.711 | $7.110 |
| 30 | $0.638 | $19.140 |
| 100 | $0.566 | $56.600 |
| 500 | $0.512 | $256.000 |
| 1000 | $0.488 | $488.000 |
In Stock:7305 PCS
UCC28700DBVR General Description
The UCC28700 family of flyback power supply controllers provides Constant-Voltage (CV) and Constant-Current (CC) output regulation without the use of an optical coupler. The devices process information from the primary power switch and an auxiliary flyback winding for precise control of output voltage and current. Low start-up current, dynamically controlled operating states and a tailored modulation profile support very low standby power without sacrificing start-up time or output transient response.
Control algorithms in the UCC28700 family allow operating efficiencies to meet or exceed applicable standards. The output drive interfaces to a MOSFET power switch. Discontinuous Conduction Mode (DCM) with valley switching reduces switching losses. Modulation of switching frequency and primary current peak amplitude (FM and AM) keeps the conversion efficiency high across the entire load and line ranges.
The controllers have a maximum switching frequency of 130 kHz and always maintain control of the peak-primary current in the transformer. Protection features help keep primary and secondary component stresses in check. The UCC28700 allows the level of cable compensation to be programmed. The UCC28701, UCC28702, and UCC28703 devices allow remote temperature sensing using a Negative Temperature Coefficient (NTC) resistor while providing fixed cable-compensation levels.
Features
- < 30-mW No-Load Power for 5-Star Rating
- Primary-Side Regulation (PSR) Eliminates Opto-Coupler
- ±5% Voltage and Current Regulation
- 130-kHz Maximum Switching Frequency Enables High-Power
Density Charger Designs - Quasi-Resonant Valley-Switching Operation for Highest
Overall Efficiency - Patent-Pending Frequency-Jitter Scheme to Ease EMI
Compliance - Wide VDD Range Allows Small Bias Capacitor
- Clamped Gate-Drive Output for MOSFET
- Protection Functions: Overvoltage, Low-Line, and
Overcurrent - Programmable Cable Compensation (UCC28700 Only)
- NTC Resistor Interface (UCC28701, UCC28702 and UCC28703
Only) With Fixed Cable Compensation Options - SOT-23 Package
Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Control mode | Primary-side regulation | UVLO thresholds on/off (V) | 21/8.1 |
| Duty cycle (max) (%) | 99 | Switching frequency (max) (kHz) | 132 |
| Features | CC/CV output regulation, Cable compensation, Current limiting, DCM, Leading edge blanking, Low power, Overcurrent protection, PSR, Primary-side regulated, Soft start, Valley switching | Operating temperature range (°C) | -20 to 125 |
| Rating | Catalog | Device type | Controllers |
| Topology | Buck, Flyback |
Shipping
| Shipping Type | Ship Fee | Lead Time | |
|---|---|---|---|
 |
DHL | $20.00-$40.00 (0.50 KG) | 2-5 days |
 |
Fedex | $20.00-$40.00 (0.50 KG) | 2-5 days |
 |
UPS | $20.00-$40.00 (0.50 KG) | 2-5 days |
 |
TNT | $20.00-$40.00 (0.50 KG) | 2-5 days |
 |
EMS | $20.00-$40.00 (0.50 KG) | 2-5 days |
 |
REGISTERED AIR MAIL | $20.00-$40.00 (0.50 KG) | 2-5 days |
Processing Time：Shipping fee depend on different zone and country.
Payment
| Terms of payment | Hand Fee | |
|---|---|---|
 |
Wire Transfer | charge US$30.00 banking fee. |
 |
Paypal | charge 4.0% service fee. |
 |
Credit Card | charge 3.5% service fee. |
 |
Western Union | charge US.00 banking fee. |
 |
Money Gram | charge US$0.00 banking fee. |
Guarantees
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.
Packing
-
Step1 :Product
-
Step2 :Vacuum packaging
-
Step3 :Anti-static bag
-
Step4 :Individual packaging
-
Step5 :Packaging boxes
-
Step6 :bar-code shipping tag
All the products will packing in anti-staticbag. Ship with ESD antistatic protection.
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.
We provide high quality products, thoughtful service and after sale guarantee
-
We have rich products, can meet your various needs.
-
Minimum order quantity starts from 1pcs.
-
Lowest international shipping fee starts from $0.00
-
365 days quality guarantee for all products
