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GENERAL DESCRIPTION
OB2358 combines a dedicated current mode PWM controller with a high voltage power MOSFET. It is optimized for high performance, low standby power, and cost effective off-line flyback converter applications in sub 27W range. OB2358 offers complete protection coverage with automatic self-recovery feature including Cycle-by-Cycle current limiting (OCP), over load protection (OLP), VDD over voltage clamp and under voltage lockout (UVLO). Excellent EMI performance is achieved with On-Bright proprietary frequency shuffling technique together with soft switching control at the totem pole gate drive output. The tone energy at below 20KHZ is minimized in the design and audio noise is eliminated during operation. OB2358 is offered in DIP8 package.
FEATURES
● Power on Soft Start Reducing MOSFET Vds Stress
● Frequency shuffling for EMI
● Extended Burst Mode Control For Improved Efficiency and Minimum Standby Power Design
● Audio Noise Free Operation
● Fixed 50KHZ Switching Frequency
● Internal Synchronized Slope Compensation
● Low VDD Startup Current and Low Operating Current
● Leading Edge Blanking on Current Sense Input
● Good Protection Coverage With Auto Self-Recovery
— VDD Over Voltage Clamp and Under Voltage Lockout with Hysteresis (UVLO)
— On-Bright Proprietary Line Input Compensated Cycle-by-Cycle Over-current Threshold Setting For Constant Output Power Limiting Over Universal Input Voltage Range.
— Overload Protection (OLP).
— Over voltage Protection(OVP)
APPLICATIONS
Offline AC/DC flyback converter for
● AC/DC adaptor
● PDA power supplies
● Digital Cameras and Camcorder Adaptor
● VCR, SVR, STB, DVD&DVCD Player SMPS
● Set-Top Box Power
● Auxiliary Power Supply for PC and Server
● Open-frame SMPS
| QUANTITY | UNIT PRICE | PLUS UNIT PRICE | TOTAL PRICE |
|---|---|---|---|
| ≥1: | US $0.43388 | US $0.39050 | US $0.39050 |
| ≥10: | US $0.35106 | US $0.31596 | US $3.15960 |
| ≥30: | US $0.31530 | US $0.28377 | US $8.51310 |
| ≥100: | US $0.26976 | US $0.24279 | US $24.27900 |
| ≥500: | US $0.25035 | US $0.22532 | US $112.66000 |
| ≥1000: | US $0.23891 | US $0.21502 | US $215.02000 |
替代产品
| Substitute Product Name | Brief Description |
|---|---|
| OB2268AP | PWM power switch with built-in Power MOSFET, suitable for AC/DC |
| OB2358CP | High-performance current mode PWM controller, high efficiency |
| UC3842 | High-performance current mode PWM controller, low startup current |
| SG6848 | Advanced PWM controller for low power-off-line SMPS applications |
| NCP1252 | AC/DC power controller, ultra-low power standby |
| ICE2QS03G | Second generation quasi resonant SMPS controller |
产品用途
The OB2358AP is a primary side regulation (PSR) flyback controller IC commonly used in various offline power supply applications. It is designed to improve the efficiency and reliability of power supplies. Typical circuits and applications using the OB2358AP include:
AC-DC Adapters:
LED Drivers:
Standby Power Supplies:
Switch Mode Power Supply (SMPS):
Battery Chargers:
In a typical application, the OB2358AP is used in a flyback converter topology which involves the following components:
The OB2358AP controls the switching of the MOSFET based on the feedback from the auxiliary winding of the transformer, maintaining the desired output voltage and current levels while ensuring safe operating conditions through its protection features.
全球物流国家列表
| 国旗 | 国家 | 预计送达时间 | 最低首重费用 | ||
|---|---|---|---|---|---|
| 快递 | 专线 | 快递 (0.5kg) | 专线 (0.05kg) | ||
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Returns are normally accepted when completed within 90 days from the date of the parcel delivered.
Defective ( Please provide a third party quality report of nonconforming products)
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Warranty
All UTSOURCE purchases have a 90 days money back return policy, plus a 100 days UTSOURCE warranty against any manufacturing defects.This warranty shall not apply to any item where defects have been caused by improper customer assembly, failure by customer to follow instructions, product modification, negligent or improper operation.
OB2358AP
OB2358AP has several brands around the world that may have alternate names for OB2358AP due to regional differences or acquisition. OB2358AP may also be known as the following names:
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库存状态: 2871
起订量: 6
总价:
超过US $300.00，免首重0.5kg邮费（除了美国）
快递: 预计{0}到达
标准配送: 预计{0}到达
国家:
United States
快递:( FEDEX，UPS，DHL，TNT）超过300$，免首重0.5kg邮费,超重将单独收费。（美国除外）
总产品: 66368总销售量: 195233
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