UC2845AD8 - TI
The pictures are for reference only, and the specific specifications can be found in the product manual.
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Part NoUC2845AD8
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ManufacturerTI
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ChipWorker Part#CW19043837
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CategoryPWM Controller IC
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PackageSOIC-8
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DescriptionTEXAS INSTRUMENTS UC2845AD8 PWM Controller, 12V-25V supply, 450kHz, 15V/1A out, SOIC-8
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DocumentationDatasheet
Payment Methods and Delivery
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UC2845AD8 Specifications
| Attribute | Attribute Value |
|---|---|
| Part Number | UC2845AD8 |
| Manufacturer | TI |
| ChipWorker Part# | CW19043837 |
| Category | PWM Controller IC |
| Documentation | Datasheet |
| Mounting Style | Surface Mount |
| Number of Pins | 8 Pin |
| Case/Package | SOIC-8 |
| Frequency | 450 kHz |
| Supply Voltage (DC) | 12.0V (min) |
| Number of Outputs | 1 Output |
| Input Voltage (DC) | 25.0 V |
| Output Voltage | 15 V |
| Output Current | 1 A |
| Number of Regulated Outputs | 1 Output |
| Rise Time | 50 ns |
| Switching Frequency | 500 kHz |
| Topology | Boost, Flyback, Forward |
| Duty Cycle | 50 % |
| Maximum Duty Cycle | 50 % |
| Fall Time | 50 ns |
| Operating Temperature (Max) | 85 ℃ |
| Operating Temperature (Min) | -40 ℃ |
| Power Dissipation (Max) | 1000 mW |
| Supply Voltage | 7.6V ~ 30V |
| Supply Voltage (Max) | 25 V |
| Supply Voltage (Min) | 12 V |
| Input Voltage | 25 V |
| expand all | |
| Size-Length | 4.9 mm |
| Size-Width | 3.91 mm |
| Size-Height | 1.58 mm |
| Operating Temperature | -40℃ ~ 85℃ (TA) |
| Product Lifecycle Status | Active |
| Packaging | Tube |
| RoHS | RoHS Compliant |
| Lead-Free Status | Lead Free |
| REACH SVHC Compliance Edition | 2015/06/15 |
| ECCN Code | EAR99 |
Product Description
- **Description**
- The UC1842A/3A/4A/5A family of control ICs is a pin for pin compatible improved version of the UC3842/3/4/5 family. Providing the necessary features to control current mode switched mode power supplies, this family has the following improved features. Start up current is guaranteed to be less than 0.5mA. Oscillator discharge is trimmed to 8.3mA. During under voltage lockout, the output stage can sink at least 10mA at less than 1.2V for VCC over 5V.
- **Features**
- Optimized for Off-line and DC to DC Converters
- Low Start Up Current (<0.5mA)
- 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
- 500kHz Operation
- Low RO Error Amp
Delivery
Chipworker Certification
Ordering Information
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