XI'AN Aerosemi Tech
MT3540-F231.2MHz Boost Adjustable 1.23V~28V 1.5A SOT-23-5 Voltage Regulators - DC DC Switching Regulators RoHS
From
₹6.88
4,17,672 in stock
TDSEMICDatasheet (PDF)
UC3845AN-TD
Switching Regulator IC Adjustable 1 Output DIP-8
DIP-8ROHS CompliantActive
Current-mode PWM controller
- Manufacturer
- TDSEMIC
- Manufacturer part #
- UC3845AN-TD
- Store part #
- C42422133
- Package / case
- DIP-8
- Packaging
- Tube-packed
Every Order Guarantee
100% Authentic · 30-Day Return or Replacement · policy
3,860 in stock
#C42422133
Stock & price checked 6 days ago
| Quantity | Unit price | Pack price |
|---|---|---|
| 5+ | ₹18.22 | ₹91.10 |
| 50+ | ₹15.76 | ₹788.00 |
| 150+ | ₹14.70 | ₹2,205.00 |
| 500+ | ₹13.39 | ₹6,695.00 |
| 2,500+ | ₹12.79 | ₹31,975.00 |
| 5,000+ | ₹12.45 | ₹62,250.00 |
5 × ₹18.22
₹91.10
excl. GST
₹107.50 incl. 18% GST
- Dispatch in 7–10 working days
- GST invoice with every order
- Standard pack: 50 per tube
UC3845AN-TD
₹91.10 for 5 + GST
Specifications
- Operating Temperature
- 0℃~+70℃@(TA)
- Frequency - Switching
- 52kHz;100kHz~500kHz
- Number of Outputs
- 1
- Features
- Cycle-by-cycle current limiting
- Output Type
- Adjustable
- Operating Voltage
- 7.6V~28V
- Switch tube (built-in/external)
- External
- Output Current
- 200mA
- Quiescent Current
- 12mA
Packaging & compliance
- RoHS
- ROHS Compliant
- Lifecycle
- Active
- Packaging
- Tube-packed
- Standard pack
- 50 / Tube
- Sold per
- Piece
- Minimum order
- 5 (multiples of 5)
- Unit weight
- 0.895 g
Overview
UC3845 is a high-performance fixed-frequency current-mode controller designed for isolated or DC-DC converter applications, offering designers a cost-effective solution with minimal external components. The circuit features an undervoltage lockout module with startup current less than 0.5mA, a precision reference voltage connected to the error amplifier input — trimmed for high accuracy. Additional internal blocks include logic circuitry for latched operation, current limiting, and a PWM comparator designed for high-current totem-pole output. This output structure is suitable for driving N-channel MOSFETs, with the output held low during shutdown.
Applications
- Power converters
Key features
- Optimized for isolated or DC/DC converters
- Low startup current (<0.5mA)
- Automatic feedforward compensation
- Cycle-by-cycle current limiting
- Enhanced load transient response
- Undervoltage protection with hysteresis
- Double pulse suppression
- High-current totem-pole output
- Internal trimmed bandgap reference
- Operating frequency up to 500kHz
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