UC3845BNG AC-DC Power Conversion by ON Semiconductor
High Performance Current Mode PWM Controller
| Status: | Active |
|---|---|
| Series: | UC3845B |
| RoHS: | Compliant |
Where to Buy
Prices starting from US$0.0019
| Distributor | Stock | ||
|---|---|---|---|
|
Avnet America
from US$0.32
|
16,600
in stock
|
Buy Now |
|
Farnell
from US$0.44
|
5,581
in stock
|
Buy Now |
|
Newark Electronics
from US$0.71
|
146
in stock
|
Buy Now |
|
Future Electronics
from US$0.31
|
44
in stock
|
Buy Now |
|
RS
from US$0.40
|
39
in stock
|
Buy Now |
|
TME
from US$0.39
|
24
in stock
|
Buy Now |
|
EBV Elektronik
-
|
2,450
in stock
|
Buy Now |
|
|
Avnet Asia
-
|
2,400
in stock
|
Buy Now |
|
Lake-View Electronics
-
|
215
in stock
|
Buy Now |
|
|
RS Americas
from US$0.95
|
0
in stock
|
Buy Now |
|
Ozdisan
from US$0.0019
|
0
in stock
|
Buy Now |
|
Avnet Silica
-
|
0
in stock
|
Buy Now |
| Buy Now |
Features
| Trimmed Oscillator for Precise Frequency Control |
| Oscillator Frequency Guaranteed at 250 kHz |
| Current Mode Operation to 500 kHz Output Switching Frequency |
| Output Deadtime Adjustable from 50% to 70% |
| 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 |
Specifications
| Description | UC3845B |
|---|---|
| Compliance | Pb-free Halide free |
| Topology | Flyback Forward Step-Down Step-Up |
| Control Mode | Current Mode |
| fsw Typ (kHz) | 52 |
| Stand-by Mode | No |
| UVLO (V) | Yes |
| Short Circuit Protection | Yes |
| Latch | No |
| Soft Start | No |
| VCC Max (V) | 25 |
| Drive Cap. (mA) | 200 / 200 |
| Package Type | PDIP-8 |
Last 6 months Inventory & Pricing History
Alternative Descriptions
| PWM CONTROLLER, CURRENT MODE, 52KHZ, DIP | Farnell |
| Current Mode Pwm Controller, 25V, 8-Dip | Newark Electronics |
| UC3845B Series 36 V 275 kHz High Performance Current Mode Controller - PDIP-8 | Future Electronics |
| onsemi UC3845BNG PWM Controller | RS |
| IC: PMIC | TME |
| PWM CURRENT MODE CONTROLLER, 1 A, 500 KHZ 8-PIN PDIP | RS Americas |
Frequently Asked Questions
Where can I find additional details, specifications and documents for a UC3845BNG?
Additional datasheets, footprints and schematics for UC3845BNG are listed on our Part Details page. You can also find images and similar parts to UC3845BNG on this page.
What pricing and inventory information can I view?
Distributor pricing and stock information is available for UC3845BNG on our Product Comparison page. Access via the 'View Pricing & Stock' button to view UC3845BNG price breaks, MOQs, lead times, inventory and SKUs from distributors.
What category does UC3845BNG fall under?
The UC3845BNG is listed under Power Management > AC-DC Power Conversion > Offline Controllers.
Can I view similar or alternative parts?
You can view similar parts to UC3845BNG when available in the Offline Controllers range under the specifications section at the bottom of the details page.
Who can I contact for technical support of the product?
Submit any questions directly to the customer support team of the distributor listing the product. For the UC3845BNG you can contact the distributor directly for product support, shipping queries etc.
Is the UC3845BNG RoHS compliant?
Yes. This part has been flagged as RoHS Compliant by ON Semiconductor.
Which authorised distributors for UC3845BNG have stock available?
Authorised distributors including Avnet America, Farnell, Newark Electronics, Future Electronics and RS have stock available or on a lead time for UC3845BNG.
How do I check stock and lead times for all distributors?
Stock availability and lead times will be displayed for UC3845BNG often in real-time on the comparison pages.
What if I can't find stock of UC3845BNG?
You can fill out our help required form which you can use to request a quote for UC3845BNG from some of our verified obsolescence suppliers. Alternatively, contact us via our web chat in the bottom left of your screen and one of our team will try to help.