AP8802 Diodes, Inc., AP8802 Datasheet
AP8802
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AP8802 Summary of contents
Page 1
... AP8802 switches at frequency up to 500kHz. This allows the use of small size external components, hence minimizing the PCB area needed. Maximum output current of AP8802 is set via an external resistor connected between the V achieved by applying either a DC voltage or a PWM signal at the CTRL input pin. An input voltage of 0.2V or lower at CTRL shuts down the output at SW and puts the device into a low-current standby state ...
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... Notes Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at http://www.diodes.com/products/lead_free.html. 2. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at http://www.diodes.com/datasheets/ap02001.pdf. AP8802 Rev. 3 DS31766 AP 8802 Green G : Green Packaging ...
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... CTRL adjusted above or below the level set by the resistor connected to SET input pin. The input impedance is about 50kΩ, and if the pin is left open V V Input Supply Pin. Must be locally bypassed connection AP8802 Rev. 3 DS31766 (2) SOP-8L-EP SET 8 CTRL 7 GND GND ...
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... 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 Symbol T Ambient Temperature Range A AP8802 Rev. 3 DS31766 1A LED Step-down Converter Sensing Block Voltage 5V Regulator R AP8802 Figure 2: AP8802 block diagram Parameter Parameter www.diodes.com AP8802 SET SW Rating Unit -0.3~50 V -0.3~ 150 C o ...
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... Test condition for SOP-8L, SOP-8L-EP and DFN3030-10: Device mounted on FR-4 PCB, 2”x2”, 2oz copper, minimum recommended pad layout on top layer and thermal vias to bottom layer ground plane. For better thermal performance, larger copper pad for heat-sink is needed. AP8802 Rev. 3 DS31766 1A LED Step-down Converter ...
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... Figure 3: LED Current setting Vs R AP8802 Rev. 3 DS31766 LED current Versus RSET and VCTRL 1 1.2 1 1.2 1 1.2 1.5 2 RSET value [Ohms] and V SET www.diodes.com AP8802 1A LED Step-down Converter and SET. The nominal IN LED current @ VCTRL = 1 ...
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... The inductor influences the LED current accuracy that the system is able to provide. The following section highlights how to select the inductor in relation to the device packages and the LED current, while maintaining the chip temperature below 70˚C. AP8802 Rev. 3 DS31766 (Continued) Switching Frequency @ ILED = 700mA ...
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... Application Information Figure 5: DFN3030-10 recommended inductor with 1A LED current Figure 6: SOP8L-EP recommended inductor with 1A LED current AP8802 Rev. 3 DS31766 1A LED Step-down Converter (Continued www.diodes.com AP8802 MARCH 2009 © Diodes Incorporated ...
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... Application Information AP8802 SOP-8L Minimum Recommended Inductor 12 Legend 11 47µH 68µH 10 100µH 9 150µH 220µH 8 470µ 0.00 5.00 10.00 15.00 Figure 7: SOP-8L recommended inductor with 700mA LED current AP8802 Rev. 3 DS31766 1A LED Step-down Converter (Continued) 8% Accuracy, <70°C Case Temperature ...
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... Application Information Capacitor Selection The small size of ceramic capacitors makes them ideal for AP8802 applications. X5R and X7R types are recommended because they retain their capacitance over wider voltage and temperature ranges than other types such as Z5U. A 2.2μF input capacitor is sufficient for most intended applications of AP8802. ...
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... Application Information Figure 9: Suggested package for a 1A application Figure 10: Suggested package for a 700mA application AP8802 Rev. 3 DS31766 (Continued) AP8802 - suggested package @ ILED=700mA and 100µH Inductor SOP-8L SOP-8L-EP DFN3030-10 Vin www.diodes.com AP8802 1A LED Step-down Converter 12 LEDs 11 LEDs 10 LEDs 9 LEDs 8 LEDs ...
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... Marking Information (1) SOP-8L Logo Part Number (2) SOP-8L-EP Logo Part No. (3) DFN3030-10 ( Top View ) Part Number AP8802FNG-7 AP8802 Rev. 3 DS31766 ( Top View ) Green YY : Year : 08, 09,10~ AP8802 WW : Week : 01~52 represents 52 and 53 week X : Internal Code Top View ) Green YY : Year : 08, 09,10~ AP8802 WW : Week : 01~52 ...
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... Package Type: SOP-8L-EP 1 7°~9° 0.3/0.5 1.27typ 4.85/4.95 1 8x-0.60 Exposed pad 6x-1.27 Land Pattem Recommendation (Unit:mm) AP8802 Rev. 3 DS31766 (All Dimensions in mm) Gauge Plane Seating Plane 0.62/0.82 Detail "A" 7°~9° 0.35max. 45° Detail "A" 0°/8° 0°/8° Detail "A" ...
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... Package Information (3) Package Type: DFN3030-10 0. (Pin #1 ID) 2X- 0.25 B 0.375Typ. 0.50Typ. AP8802 Rev. 3 DS31766 (Continued) TOP MARK Seating Plane Side View C 2.9/3.1 A 2.3/2.5 0.2/0.3 0. Bottom View www.diodes.com AP8802 1A LED Step-down Converter MARCH 2009 © Diodes Incorporated ...
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... Taping Orientation For DFN3030-10 Notes: 5. The taping orientation of the other package type can be found on our website at http://www.diodes.com/datasheets/ap02007.pdf. AP8802 Rev. 3 DS31766 1A LED Step-down Converter www.diodes.com AP8802 MARCH 2009 © Diodes Incorporated ...
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... Diodes Incorporated. Further, Customers must fully indemnify Diodes Incorporated and its representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems. Copyright © 2009, Diodes Incorporated www.diodes.com AP8802 Rev. 3 DS31766 1A LED Step-down Converter IMPORTANT NOTICE LIFE SUPPORT www ...