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Microchip SG3846DW
Buck, Boost, Push-Pull Regulator Positive Output Step-Up, Step-Down, Step-Up/Step-Down DC-DC Controller IC 16-SOIC
Brands: Microchip Technology, Inc
Mfr.Part #: SG3846DW
Datasheet: SG3846DW Datasheet (PDF)
Package/Case: SOP-16
Product Type: Power Management ICs
RoHS Status:
Stock Condition: 2340 pcs, New Original
Warranty: 1 Year Ovaga Warranty - Find Out More
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Add To BomSG3846DW General Description
The SG1846 family of control ICs provides the required features to implement Fixed Frequency, Current mode control schemes while maintaining a minimum external parts count. The advanced performance of this technique can be measured in improved line regulation, enhanced load response characteristics, and a simpler, easier-to-design control loop. Topological advantages include, inherent pulse-by-pulse current limiting capability, automatic symmetry correction for push-pull converters, and the ability to parallel “power modules” while maintaining equal current sharing.
Protection circuitry includes built-in under-voltage lockout and programmable current limit in addition to soft start capability. A shutdown function is also available which can initiate either a complete shutdown with automatic restart, or latch the supply off.
Other features include fully latched operation, double-pulse suppression, dead-time adjust capability, and a ±1% trimmed bandgap reference.
Features
- Automatic Feed-forward Compensation
- Programmable Pulse by Pulse Current Limiting
- Automatic Symmetry Correction in Push-pull Configuration
- Enhanced Load Response Characteristics
- Parallel Operation Capability for Modular Power Systems
- Differential Current Sense Amplifier with Wide Common-mode Range - Double Pulse Suppression
- 200mA Totem-pole Outputs
- ± 1% Bandgap Reference
- Under-voltage Lockout
- Soft-start and Shutdown Capability
- 500kHz Operation
Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Manufacturer | Microsemi Corporation | Product Category | PMIC - Voltage Regulators - DC DC Switching Controllers |
| Series | - | Product | Current Mode PWM Controller |
| Packaging | - | Unit-Weight | 0.023492 oz |
| Mounting-Style | SMD/SMT | Package-Case | SOIC-16 |
| Operating-Temperature | 0°C ~ 70°C (TA) | Output-Type | Transistor Driver |
| Function | Step-Up, Step-Down, Step-Up/Step-Down | Supplier-Device-Package | 16-SOIC |
| Number-of-Outputs | 2 | Topology | Buck, Boost, Push-Pull |
| Voltage-Supply-Vcc-Vdd | 8 V ~ 40 V | Frequency-Switching | 1Hz ~ 500kHz |
| Control-Features | Current Limit, Enable | Output-Configuration | Positive |
| Output-Phases | 1 | Duty-Cycle-Max | |
| Synchronous-Rectifier | Yes | Clock-Sync | Yes |
| Serial-Interfaces | - | Shutdown | Yes |
| Maximum-Operating-Temperature | + 70 C | Minimum-Operating-Temperature | 0 C |
| Operating-Supply-Voltage | 8 V to 40 V | Output-Voltage | 5.1 V |
| Description-Function | Current Mode PWM Controller | Operating-Supply-Current | 17 mA |
| Input-Voltage | 8 V to 40 V | Output-Current | 200 mA |
| Switching-Frequency | 500 kHz | Fall-Time | 50 ns |
| Rise-Time | 50 ns |
Shipping
| Shipping Type | Ship Fee | Lead Time | |
|---|---|---|---|
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DHL | $20.00-$40.00 (0.50 KG) | 2-5 days |
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Fedex | $20.00-$40.00 (0.50 KG) | 2-5 days |
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UPS | $20.00-$40.00 (0.50 KG) | 2-5 days |
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TNT | $20.00-$40.00 (0.50 KG) | 2-5 days |
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EMS | $20.00-$40.00 (0.50 KG) | 2-5 days |
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REGISTERED AIR MAIL | $20.00-$40.00 (0.50 KG) | 2-5 days |
Processing Time：Shipping fee depend on different zone and country.
Payment
| Terms of payment | Hand Fee | |
|---|---|---|
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Wire Transfer | charge US$30.00 banking fee. |
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Paypal | charge 4.0% service fee. |
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Credit Card | charge 3.5% service fee. |
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Western Union | charge US.00 banking fee. |
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Money Gram | charge US$0.00 banking fee. |
Guarantees
1.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.
2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.
Packing
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All the products will packing in anti-staticbag. Ship with ESD antistatic protection.
Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.
We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.
After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.
Part points
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SG3846DW is a chip developed by Microsemi Corporation, widely used for power supplies in various applications. It offers advanced protection features such as cycle-by-cycle current limit, thermal shutdown, and auto-restart functionality. The integrated PWM controller and error amplifier make it suitable for forward converter topologies. SG3846DW delivers stable and efficient power supply operations, making it a popular choice in industrial and consumer electronic devices.
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Features
The SG3846DW is a pulse width modulator (PWM) controller. It features an adjustable oscillator frequency, voltage feed-forward compensation, programmable soft start, short-circuit protection, and an open-collector output. It offers high accuracy and stability for controlling power supply systems, battery chargers, and other applications. -
Pinout
The SG3846DW is a 16-pin integrated circuit (IC) that serves as a current-mode PWM controller. It provides functions such as error amplification, voltage reference, current sensing, and PWM generation. -
Application Field
The SG3846DW is a current mode PWM controller primarily used in the design of switch-mode power supplies and DC-DC converters. It finds applications in various industries including telecommunications, industrial automation, consumer electronics, and automotive, where efficient power conversion is essential. -
Package
The SG3846DW chip is available in a SOIC (Small Outline Integrated Circuit) package form. The size of the chip is approximately 3.9 mm x 9.9 mm.
Datasheet PDF
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Functional product, not the most impressive quality.