Hangzhou Silan Microelectronics
SDH8302STR50kHz~68kHz 0.65W 650V 10V~25V SOP-8 AC DC Converters, Offline Switchers
From
₹33.01
1,71,635 in stock
lingxingicDatasheet (PDF)
UC2843BD(LX)
Converter Offline Boost Topology 49kHz~55kHz SOP-8
SOP-8RoHSActive
High-performance current-mode PWM controller
- Manufacturer
- lingxingic
- Manufacturer part #
- UC2843BD(LX)
- Store part #
- C22390254
- Package / case
- SOP-8
- Packaging
- Tape & Reel (TR)
Every Order Guarantee
100% Authentic · 30-Day Return or Replacement · policy
4,415 in stock
#C22390254
Stock & price checked 6 days ago
| Quantity | Unit price | Pack price |
|---|---|---|
| 5+ | ₹29.26 | ₹146.30 |
| 50+ | ₹23.28 | ₹1,164.00 |
| 150+ | ₹20.70 | ₹3,105.00 |
| 500+ | ₹17.50 | ₹8,750.00 |
| 2,500+ | ₹16.07 | ₹40,175.00 |
| 4,000+ | ₹15.23 | ₹60,920.00 |
5 × ₹29.26
₹146.30
excl. GST
₹172.63 incl. 18% GST
- Dispatch in 7–10 working days
- GST invoice with every order
- Standard pack: 4,000 per reel
UC2843BD(LX)
₹146.30 for 5 + GST
Specifications
- Operating Temperature
- -40℃~+105℃
- Output Current
- 1A
- Frequency - Switching
- 49kHz~55kHz
- Voltage - Supply
- 7.6V~30V
- Features
- Under-voltage lockout;Over Current Protection;Under Voltage Protection
- Topology
- Boost
- Output Voltage
- 5V
- Duty Cycle(Max)
- 97%
- Working Mode
- PWM Modulation
Packaging & compliance
- RoHS
- RoHS
- Lifecycle
- Active
- Packaging
- Tape & Reel (TR)
- Standard pack
- 4,000 / Reel
- Sold per
- Piece
- Minimum order
- 5 (multiples of 5)
- Unit weight
- 0.183 g
Overview
This series of devices are fixed-frequency PWM control circuits designed primarily to provide current-mode control for off-line power supplies or DC-DC converters, requiring minimal external components. Integrated on-chip are a trimable-frequency oscillator, a temperature-compensated precision reference voltage, a high-gain error amplifier, and a current-sense comparator. The output stage employs a push-pull configuration capable of sourcing and sinking large currents, suitable for driving MOSFET power switches. Built-in UVLO and current-limiting protection circuits are also included. Different variants differ in UVLO thresholds and maximum operating duty cycle: the UC2842 and UC2844 have turn-on/turn-off thresholds of 16V and 10V respectively, while the UC2843 and UC2845 feature thresholds of 8.8V and 7.6V. The UC2842 and UC2843 can operate at duty cycles approaching 100%, whereas the UC2844 and UC2845 are limited to approximately 50% duty cycle.
Key features
- Low startup current (<0.5mA)
- Maximum duty cycle clamp
- UVLO with hysteresis
- Operating frequency up to 500kHz
- Operating temperature range: -40℃ ~ 125℃
Alternatives
Similar parts — check the datasheet before substituting.
| Part | Manufacturer | Package | Stock | Price from (excl. GST) | Action | |
|---|---|---|---|---|---|---|
 | UC2845BD(LX)#C22390258lingxingic · SOP-8 | lingxingic | SOP-8 | 345 | ₹25.94 · 345 in stock | View |
 | UC3843BD(LX)#C22397221lingxingic · SOP-8 | lingxingic | SOP-8 | 3,100 | ₹14.55 · 3,100 in stock | View |
 | UC3845BD(LX)#C22397225lingxingic · SOP-8 | lingxingic | SOP-8 | 1,650 | ₹22.21 · 1,650 in stock | View |
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