UC2845ANG4 Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
UC2845ANG4 is a current-mode PWM controller IC from Texas Instruments supporting 8.2V–28V input, up to 500 kHz switching frequency, and 200 mA gate drive output. From $0.65 in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- UC2845ANG4 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.6513(MOQ 250)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Current-mode PWM control with cycle-by-cycle current limiting for enhanced protection
- Wide input voltage range of 8.2V to 28V suitable for diverse power supply designs
- High-frequency operation up to 500 kHz enabling compact transformer and filter designs
- 15V/200mA totem-pole output driver for reliable MOSFET gate drive
- Available in DIP-8 package for easy through-hole prototyping and production
Applications
The UC2845ANG4 is widely used in off-line and DC-DC switching power supply designs, including flyback, forward, and boost converters for industrial and telecom equipment. Its current-mode control architecture makes it ideal for power factor correction stages and battery chargers requiring tight voltage and current regulation. It is also commonly deployed in motor drive auxiliary power supplies and embedded system power modules where compact size and high efficiency are critical.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Analog IC - Other Type | SWITCHING CONTROLLER |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 28V |
| Input Voltage-Min | 8.2V |
| Input Voltage-Nom | 15V |
| JESD-30 Code | R-PDIP-T8 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Output Current-Max | 1A |
| Output Voltage-Max | 5.05V |
| Output Voltage-Min | 4.95V |
| Output Voltage-Nom | 5V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP8,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 25mA |
| Supply Voltage-Max (Vsup) | 28V |
| Supply Voltage-Min (Vsup) | 8.4V |
| Supply Voltage-Nom (Vsup) | 11V |
| Surface Mount | NO |
| Switcher Configuration | BUCK-BOOST |
| Switching Frequency-Max | 500kHz |
| Technology | BIPOLAR |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Mexico |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for UC2845ANG4:
Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDIP8
Frequently Asked Questions
What is the input voltage range of the UC2845ANG4?
The UC2845ANG4 operates over an input voltage range of 8.2V to 28V, with a nominal supply voltage of 15V. The undervoltage lockout (UVLO) threshold ensures the controller starts up only when supply voltage is sufficient, protecting the system from erratic operation during power-on.
What switching frequency does the UC2845ANG4 support?
The UC2845ANG4 supports switching frequencies up to 500 kHz, set by an external RC timing network connected to the oscillator pin. Higher frequencies allow for smaller magnetic and capacitive components, reducing overall power supply size and cost in the final design.
What are typical applications for the UC2845ANG4?
Typical applications include flyback and forward DC-DC converters, off-line switch-mode power supplies, battery chargers, and industrial power modules. The current-mode control technique provides inherent cycle-by-cycle overcurrent protection, making it suitable for demanding telecom and industrial environments.
Is the UC2845ANG4 RoHS compliant?
Yes, the UC2845ANG4 is RoHS compliant (Pbfree Code: Yes, JESD-609 Code: e4), indicating it is manufactured without restricted hazardous substances. This makes it suitable for use in environmentally regulated markets in Europe, Asia, and North America.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 250+ | $1.1600 | $290.00 |
| 500+ | $0.7510 | $375.50 |
| 600+ | $0.6513 | $390.78 |
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