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AP8802HSP-13 Datasheet(PDF) 3 Page - Diodes Incorporated |
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AP8802HSP-13 Datasheet(HTML) 3 Page - Diodes Incorporated |
3 / 11 page AP8802H 60V 1A LED Step-down Converter AP8802H Document number: DS32227 Rev. 1 - 2 3 of 11 www.diodes.com June 2010 © Diodes Incorporated Functional Block Diagram Voltage Regulator 5V R CTRL VIN GND SET SW Sensing Block VREF 1.25V AP8802H PWM/DC Control Figure 2: AP8802H Block Diagram Absolute Maximum Ratings Symbol Parameter Rating Unit VIN VIN pin Voltage -0.3~60 V VSW SW Voltage -0.3~60 V TJ Junction Temperature 150 °C TLEAD Lead Temperature Soldering 300 °C TST Storage Temperature Range -65 to +150 °C Caution: The absolute maximum ratings are rated values exceeding which the product could suffer physical damage. These values must therefore not be exceeded under any condition. Semiconductor devices are ESD sensitive and may be damaged by exposure to ESD events. Suitable ESD precautions should be taken when handling and transporting these devices. Recommended Operating Conditions (Note 2) Symbol Parameter Min Max Unit TA Ambient Temperature Range -40 105 ºC Duty Cycle Using Inductor ≥ 100µH (Note 2) 0.1 0.95 Notes: 2. For most applications the LED current will be within 5% over the duty cycle range specified. Duty cycle accuracy is also dependent on propagationdelay. Smaller size inductors can be used but LED current accuracy may be greater than 5% at extremes of duty cycle. This is most noticeable at low duty cycles (less than 0.1) or when the input voltage is high and only one LED is being driven. |
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