供应全新液晶显示器电源芯片LD7522HPS,LD7522PS
| 价 格： | 面议 | |
| 型号/规格： | LD7522HPS,LD7522PS | |
| 品牌/商标： | LD |
通嘉科技推出全功能型Current Mode PWM控制器LD7520/LD7522，激活电流仅需35mA，具Green Mode节能操作功能，该产品整合了Leading-Edge Blanking，内部斜率补偿及数种保护功能，如，循环电流限制、OVP、OTP及OLP功能，提供设计者更高效率，更少外部零件的AC/DC解决方案，其中LD7522兼具有Brown-Out的功能。该二款IC不仅耗电低，即使轻载或无负载时，仍保持无噪音运作，并且可依需要设定为Latch-Mode或自动回复保护。LD7520/LD7522可应用在AC/DC变压器、充电器，Open frame电源供应器、LCD屏幕/电视用的电源，并提供SOP-8及DIP-8二种包装选择。
General Description
The LD7522 is a low startup current, current mode PWM controller with green-mode power-saving operation. The SOP-8/DIP-8 package integrated functions such as the leading- edge blanking of the current sensing, internal slope compensation, line compensation, and several protection features. The protection functions include cycle-by-cycle current limit, OVP, OTP, OLP, and brownout protection. It provides the users a high efficiency, low external component counts solution for AC/DC power applications.
Furthermore, to satisfy various protection requirements, both latch-mode protection and auto-recoverable protection can be easily achieved by configuring LD7522 on different operation modes.
The special green-mode control is not only to achieve the low power consumption but also to offer a non-audible-noise operation when the LD7522 is operating under light load or no load condition.
Features
• High-Voltage CMOS Process with Excellent ESD protection
• Very Low Startup Current (< 35µA)
• Current Mode Control
• Non-audible-noise Green Mode Control
• UVLO (Under Voltage Lockout)
• LEB (Leading-Edge Blanking) on CS Pin
• Internal Slope Compensation
• Programmable Line Compensation
• OVP (Over Voltage Protection)
• OTP (Over Temperature Protection) through a NTC
• Brownout Protection
• Flexibility on Latch/Auto-Recoverable Protection Mode
• 500mA Driving Capability
Applications
• Switching AC/DC Adaptor and Battery Charger
• Open Frame Switching Power Supply
• LCD Monitor/TV Power
| LD7575 |
Green-Mode PWM Controller with High-Voltage Start-Up Circuit |
| LD7575A |
Green-Mode PWM Controller with High-Voltage Start-Up Circuit |
| LD7575B |
Green-Mode PWM Controller with High-Voltage Start-Up Circuit |
| LD7576X |
Green-Mode PWM Controller with High-Voltage Start-Up Circuit and Frequency Trembling |
| LD7577 | Green-Mode PWM Controller with High-Voltage |
| LD7578 | Green-Mode PWM Controller with HV Start-Up Circuit |
| LD7530/LD7530A |
Green-Mode PWM Controller with Frequency Jittering and Integrated Protections |
| LD7531 | Green-Mode PWM Controller with Frequency Trembling and Integrated Protections |
| LD7532 | Green-Mode PWM Controller with Latch off Protections |
| LD7535/LD7535A | Green-Mode PWM Controller with Integrated Protections |
| LD7535B | Green-Mode PWM Controller with Integrated Protections |
| LD7550B | Green-Mode PWM Controller |
| LD7520 | Smart Green-Mode PWM Controller with Multiple Protections |
| LD7522 | Smart Green-Mode PWM Controller with Multiple Protections |
| LD7522H | Smart Green-Mode PWM Controller with Multiple Latch-Mode Protections |
| LD7552 | Green-Mode PWM Controller |
| LD7552B | Green-Mode PWM Controller with Integrated Protections |
| LD7552D | Green-Mode PWM Controller with Integrated Protections and Adjustable OLP Delay Time |
- 所属城市：广东 深圳
- [联系时请说明来自维库仪器仪表网]
- 联系人： 陈树辉
- 电话：0755-82534577/13076512089
- 传真：0755-82534577
- 手机：13686868407
- QQ ：
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