Texas Instruments UC2572D 直流控制器-产品快照
- 品牌:
- Texas Instruments
- 型号:
- UC2572D
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| 供应商名称 | 电话 | 备注 |
|---|---|---|
| 得捷电子（上海）有限公司 | 400 920 1199 | |
| 深圳捷迈科技发展有限公司 | 0755-86128820 | |
| 上海贸泽电子有限公司 | ||
| 易络盟电子（中国）有限公司 | ||
| 深圳市鑫凯亚电子有限公司 |
产品介绍
Texas Instruments UC2572D 直流控制器
TEXAS INSTRUMENTS UC2572D Pulse Width Modulator, Negative Output, 4.75V to 30V, 1 Output, Flyback, 100kHz, SOIC-8
TEXAS INSTRUMENTS
The UC2572D is a negative output flyback Pulse Width Modulator converts a positive input voltage to a regulated negative output voltage. The chip is optimized for use in a single inductor negative flyback switching converter employing an external PMOS switch. The block diagram consists of a precision reference, an error amplifier configured for voltage mode operation, an oscillator, a PWM comparator with latching logic and a 0.5A peak gate driver. It includes an undervoltage lockout circuit to insure sufficient input supply voltage is present before any switching activity can occur and a pulse-by-pulse current limit. Output current can be sensed and limited to user determined maximum value. The UVLO circuit turns the chip off when the input voltage is below the UVLO threshold. In addition, a sleep comparator interfaces to the UVLO circuit to turn the chip off. Simple single inductor flyback PWM for negative voltage generation Drives external PMOS switch Contains UVLO circuit Includes pulse-by-pulse current limit Low 50uA Sleep mode current Green product and no Sb/Br Supply Voltage Min: 4.75V Supply Voltage Max: 30V No. of Outputs: No. of Outputs: 1 Output Duty Cycle (%): 96% Controller IC Case Style: SOIC No. of Pins: 8Pins Switching Frequency: 100kHz Topology: Flyback Operating Temperature Min: -40°C Operating Temperature Max: 85°C Packaging: Each Product Range: - Automotive Qualifications Standard: - MSL: MSL 2 - 1 year Output Current: 500 mA SVHC: No SVHC (15-Jun-2015) Output Voltage: -70 V Find similar products grouped by common attribute
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