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NCP1377BDR2G
Switching Controllers Quasi Resonant Current Mode PWM
Brands: onsemi
Mfr.Part #: NCP1377BDR2G
Datasheet: NCP1377BDR2G Datasheet (PDF)
Package/Case: 8-SOIC(0.154",3.90mmWidth)
RoHS Status:
Stock Condition: 9065 pcs, New Original
Warranty: 1 Year Ovaga Warranty - Find Out More
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*All prices are in USD
| Qty | Unit Price | Ext Price |
|---|---|---|
| 1 | $1.012 | $1.012 |
| 10 | $0.846 | $8.460 |
| 30 | $0.764 | $22.920 |
| 100 | $0.681 | $68.100 |
| 500 | $0.553 | $276.500 |
| 1000 | $0.527 | $527.000 |
In Stock:9065 PCS
NCP1377BDR2G General Description
The NCP1377 combines a true current mode modulator and a demagnetization detector which ensures full borderline / critical Conduction Mode in any load/line conditions together with minimum drain voltage switching (Quasi-Resonant operation). Due to its inherent skip cycle capability, the controller enters burst mode as soon as the power demand falls below a predetermined level. As this happens at low peak current, no audible noise can be heard. For NCP1377, an internal 8.0µs timer prevents the free-run frequency to exceed the 150kHz CISPR-22 EMI starting limit while the skip adjustment capability lets the user select the frequency at which the burst foldback takes place. For NCP1377B, the internal timer duration is reduced to 3.0µs to allow operation at higher frequencies.
The transformer core reset detection is done through an auxiliary winding which, brought via a dedicated pin, also enables fast Over-Voltage Protection (OVP). Once an OVP has been detected, the IC permanently latches-off. The 1377 features a sampling time of 4.5µs whereas it is 1.5µs for the B version.
The NCP1377 also features an efficient protective circuitries which, in presence of an overcurrent condition, disables the output pulses and enters a safe burst mode, trying to re-start. Once the default has gone, the device auto-recovers. Finally an internal 1ms soft-start eliminates the traditional startup stress.
Features
- Free-running borderline / critical mode quasi-resonant operation
- Latched Over Voltage Protection
- Auto-recovery short-circuit protection via UVLO crossover
- External latch triggering, e.g. via over-temperature signal
- Current-Mode with adjustable Skip-cycle capability
- Internal 1ms soft-start
- Internal temperature shutdown
- Internal Leading Edge Blanking
- 500mA peak current source/sink capability
- Under Voltage Lockout level of 12.5V (on) and 7.5V (min)
- Direct optocoupler connection
- SPICE models available for TRANsient analysis
- Internal minimum TOFF
- Auxiliary power supplies (USB, appliances, TVs etc.)
- Pb-Free Packages are Available
Application
- AC/DC adapters for notebooks etc.
- Offline battery chargers
- Consumer electronics (DVD players, set-top boxes, TVs, etc.)
- Auxiliary power supplies (USB, appliances, TVs etc.)
Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Product Status | Obsolete | Output Isolation | Isolated |
| Internal Switch(s) | No | Topology | Flyback |
| Voltage - Start Up | 12.5 V | Voltage - Supply (Vcc/Vdd) | 7.5V ~ 18V |
| Frequency - Switching | Up to 300kHz | Fault Protection | Current Limiting, Over Temperature, Over Voltage |
| Operating Temperature | -40°C ~ 125°C (TJ) | Package / Case | 8-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 8-SOIC | Mounting Type | Surface Mount |
| Base Product Number | NCP1377 |
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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The NCP1377BDR2G chip is a highly efficient synchronous PWM controller designed for offline power supplies. It integrates a multi-mode PWM controller and a high-voltage startup circuit in a single chip, making it suitable for low-power applications. The chip features adjustable switching frequency, overvoltage protection, and built-in soft-start functionality.
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Equivalent
Some equivalent products of the NCP1377BDR2G chip are NCP1377D, NCP4304ADR2G, NCP1207D and NCP1207BDR2G. These chips all serve similar functions as PWM controllers for switch-mode power supplies, offering features such as internal voltage references, overvoltage protection, and high efficiency operation. -
Features
NCP1377BDR2G is a PWM controller IC with integrated brown-out protection and soft-start function. It provides overvoltage protection, adjustable frequency control, and current limiting. It has a wide input voltage range and is suitable for offline flyback power supplies in applications such as LED lighting and consumer electronics. -
Pinout
The NCP1377BDR2G is a PWM controller IC with an 8-pin DIP package. It has 7 pins for power supply, ground, feedback, oscillator, and protection functions. The eighth pin is not internally connected. -
Manufacturer
ON Semiconductor is the manufacturer of the NCP1377BDR2G. It is a semiconductor company that specializes in power and signal management, logic, discrete, and custom devices for automotive, communications, computing, consumer, industrial, medical, and military/aerospace applications. ON Semiconductor is a Fortune 500 company with a global presence in multiple countries. -
Application Field
The NCP1377BDR2G is a high-performance current-mode controller designed for high-power offline converters in applications such as power supplies, industrial equipment, and LED lighting. It features overvoltage protection, overcurrent protection, and a thermal shutdown function, making it a versatile choice for power management solutions. -
Package
The NCP1377BDR2G chip comes in a SOIC-14 package, with a form factor of surface mount and a size of 14 pins.
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