UC3845AD8
Current Mode PWM Controller -0.1V to 11V 1A 500kHz 8-Pin SOIC Tube
Inventory:9,128
- 90-day after-sales guarantee
- 365 Days Quality Guarantee
- Genuine Product Guarantee
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Part Number : UC3845AD8
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Package/Case : SOIC-8
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Brands : TI
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Components Categories : Power Supply Controllers, Monitors
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Datesheet : UC3845AD8 DataSheet (PDF)
Overview of UC3845AD8
The UCx84xA family of control devices is a pin-for-pin compatible improved version of the UCx84x family. Providing the necessary features to control current-mode or switched-mode power supplies, this family of devices has many improved features: startup current is less than 0.5 mA, oscillator discharge is trimmed to 8.3 mA, and during UVLO, the output stage can sink at least 10 mA at less than 1.2 V for VCC over 5 V.
Key Features
- Optimized for Off-Line and DC-DC Converters
- Low Start-Up Current (< 0.5 mA)
- Trimmed Oscillator Discharge Current
- Automatic Feedforward Compensation
- Pulse-by-Pulse Current Limiting
- Enhanced Load Response Characteristics
- Undervoltage Lockout With Hysteresis
- Double Pulse Suppression
- High-Current Totem Pole Output
- Internally-Trimmed Bandgap Reference
- Up to 500-kHz Operation
- Create a Custom Design Using the UCx84xA With the WEBENCH Power Designer
Application
- Power Management
- Industrial
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
Topology | Boost, Buck, Buck boost, Flyback, Forward | Control mode | Peak current mode |
Duty cycle (max) (%) | 50 | Switching frequency (max) (kHz) | 500 |
Features | Adjustable switching frequency, Current limiting, Dead time control, Error amplifier, Multi-topology | UVLO thresholds on/off (V) | 8.4/7.6 |
Operating temperature range (°C) | 0 to 70 | Rating | Catalog |
Gate drive (typ) (A) | 1 | Vin (max) (V) | 28 |
Warranty & Returns
Warranty, Returns, and Additional Information
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QA & Return Policy
Parts Quality Guarantee: 365 days
Returns for refund: within 90 days
Returns for Exchange: within 90 days
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Parts Packaging Guarantee: Featuring 100% ESD anti-static protection, our packaging incorporates high toughness and superior buffering capabilities.
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