UC3845BD1R2G
PWM Controller, 25V-12V supply, 250 kHz, 13.4V/12mA out, SOIC-8
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| Quantity | Price (inc GST) |
|---|---|
| 1+ | CNY8.820 (CNY9.9666) |
| 10+ | CNY3.980 (CNY4.4974) |
| 100+ | CNY2.660 (CNY3.0058) |
| 500+ | CNY2.530 (CNY2.8589) |
| 1000+ | CNY2.390 (CNY2.7007) |
| 2500+ | CNY2.120 (CNY2.3956) |
| 5000+ | CNY1.890 (CNY2.1357) |
Product Information
Product Overview
The UC3845BD1R2G is a high-performance fixed frequency current-mode Pulse Width Modulation (PWM) Controller specifically designed for off-line and DC to DC converter applications offering the designer a cost-effective solution with minimal external components. It features an oscillator, a temperature compensated reference, high gain error amplifier, current sensing comparator and a high current totem pole output ideally suited for driving a power MOSFET. Also included are protective features consisting of input and reference undervoltage lockouts each with hysteresis, cycle-by-cycle current limiting, a latch for single pulse metering and a flip-flop which blanks the output off every other oscillator cycle, allowing output deadtimes to be programmed from 50 to 70%.
- Trimmed oscillator for precise frequency control
- Automatic feed forward compensation
- Internally trimmed reference with undervoltage lockout
- High current totem pole output
- Undervoltage lockout with hysteresis
- Low startup and operating current
Applications
Power Management, Industrial
Technical Specifications
Single Ended Controller
Current Mode Control
25V
8Pins
52kHz
-
50%
0°C
-
MSL 1 - Unlimited
-
250kHz
12mA
1Channels
12V
SOIC
Surface Mount
-
0%
Boost, Flyback, Inverting
70°C
-
No SVHC (27-Jun-2024)
SOIC
-
13.4V
Technical Docs (2)
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Legislation and Environmental
Country in which last significant manufacturing process was carried outCountry of Origin:China
Country in which last significant manufacturing process was carried out
RoHS
RoHS
Product Compliance Certificate