AP8800
Document overview
- Manufacturer or author: Diodes Incorporated
- PDF pages: 13
Technical content
Features
LED Driving Current up to 350mA Compatible with 12V & 24V Standard Systems High Efficiency up to 92% High Switching Frequency up to 0.6MHz PWM/DC Input for Dimming Control Built-in Soft-Start Function Built-in Output Open-Circuit Protection SO-8, MSOP-8 and U-DFN3030-10: Available in ―Green‖ Molding Compound (No Br, Sb) with lead Free Finish/ RoHS Compliant Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) Halogen and Antimony Free. “Green” Device (Note 3)
Applications
Commercial & Industrial Lighting Small LCD Panel Backlight Architecture Detail Lighting Appliances Interior Lighting Pin Assignments SO-8 4 5 ( Top View ) RSVD GND SW NC CTRL SET NC VIN AP8800 MSOP-8 4 5 ( Top View ) RSVD GND SW NC CTRL SET NC VIN AP8800 U-DFN3030-10 ( Top View ) GND RSVD NC CTRL SW NC VIN NC SET NCAP8800 Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant. 2. See https://www.diodes.com/quality/lead-free/ for more information about Diodes Incorporated’s definitions of Halogen - and Antimony-free, "Green" and Lead-free. 3. Halogen and Antimony free "Green‖ products are defined as those which cont ain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and <1000ppm antimony compounds. Typical Applications Circuit RSET = 0.33Ω AP8800 L1 = 100μH VIN SET SW CTRL GND C1 = 1μF 8V ~ 28V_DC NOT RECOMMENDED FOR NEW DESIGN USE AL8860 and AL8861
Document number: DS31764 Rev. 8 - 3 2 of 13 www.diodes.com April 2018 © Diodes Incorporated AP8800 Pin Descriptions Pin Name Pin Number Function SO-8 MSOP-8 U-DFN3030-10 SW 3 3 4 Switch Pin. Connect inductor/freewheeling diode here. Minimize trace area at this pin to reduce EMI. GND 4 4 5 GND Pin SET 8 8 10 Set Nominal Output Current Pin. To configure the output current of the device. CTRL 1 1 1 Dual function dimming control pin. Input voltage of 0.2V or lower forces the device into low current standby mode and shuts off the output. A PWM signal (driven by an open-drain/collector source) allows the output current to be adjusted over a wide range up to 100%. An analog voltage between 0.3V and 2.5V adjusts the output current between 25% and 200% of the current set by 0.2V/RS. The input impedance is about 200kΩ, and if the pin is left open VCTRL = VREF VIN 5 5 6 Input Supply Pin. Must be locally bypassed. RSVD 2 2 2 Reserved. Normally connected to Ground NC 6, 7 6, 7 2, 7, 8, 9 No Connection. Functional Block Diagram Absolute Maximum Ratings (@TA = +25° C, unless otherwise specified.) Symbol Parameter Rating Unit VIN VIN Pin Voltage -0.3 to +30 V VSET Set Voltage Relative to VIN VIN -5 to VIN +0.3 V VSW SW Voltage -0.3 to +30 V VCTRL CTRL Pin Input Voltage -0.3 to +5 V TJ Maximum Junction Temperature +125 °C TLEAD Maximum Lead Temperature +300 °C TST Storage Temperature Range -55 to +125 °C Caution: Stresses greater than the 'Absolute Maximum Ratings' specified above, may cause permanent damage to the device. These are str ess ratings only; functional operation of the device at these or any other conditions exceeding those indicated in this specification is not implied. Device reliability may be affected by exposure to absolute maximum rating conditions for extended periods of time . 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. NOT RECOMMENDED FOR NEW DESIGN USE AL8860 and AL8861
Document number: DS31764 Rev. 8 - 3 3 of 13 www.diodes.com April 2018 © Diodes Incorporated AP8800 Recommended Operating Conditions (@TA = +25° C, unless otherwise specified.) Symbol Parameter Min Max Unit VIN Operating Input Voltage relative to GND 8.0 28 V VCTRLDC Voltage Range for 24% to 200% DC Dimming Relative to GND (Note 4) 0.3 2.5 V VCTRLL Voltage Low for PWM Dimming Relative to GND 0 0.2 V fOSC Maximum Switching Frequency — 500 kHz TA Ambient Temperature Range -40 +85 °C Duty Cycle Using Inductor ≥ 100µ H (Note 5) 0.1 0.95 — VENH CTRL Input Voltage to Attain 100% LED Current 1.25 — V VENL CTRL Input Voltage Below Which Device Turns Off — 0.2 Notes: 4. For 100% brightness either leave floating or connect to 1.25V relative to GND. 5. For most applications the LED current will be within 8% over the duty cycle range specified. Duty cycle accuracy is also dependent on propagation delay. Smaller size inductors can be used but LED current accuracy may be greater than 8% at extremes of duty cycle. Th is 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. Electrical Characteristics (@TA = +25° C, unless otherwise specified.) Symbol Parameter Conditions Min Typ Max Unit IOUT Continuous Switch Current (Note 6) — — 350 mA IQ Quiescient Current — — 20 30 μA VTHD Internal Current Sense Threshold Voltage VIN – VSET 92 100 108 mV VREF Internal Reference Voltage — — 1.25 — V SET SET Pin Input Current VSET = VIN -0.1 — 1.3 — μA RDS(ON) On-Resistance of Internal Switch — — 1.7 2.2 Ω ISW_Leakage Switch Pin Leakage Current — — — 5 μA JA Thermal Resistance Junction-to-Ambient SO-8 (Note 7) — 92 — C/W MSOP-8 (Note 7) — 120 — C/W U-DFN3030-10 (Note 7) — 46 — C/W JC Thermal Resistance Junction-to-Case SO-8 (Note 7) — 60 — C/W MSOP-8 (Note 7) — 98 — C/W U-DFN3030-10 (Note 7) — 32 — C/W Notes: 6. Refer to figure 8 for the device derating curve. 7. Test condition for SO-8, MSOP-8 and U-DFN3030-10: Device mounted on FR-4 PCB, 2‖x 2‖, 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. NOT RECOMMENDED FOR NEW DESIGN USE AL8860 and AL8861
Document number: DS31764 Rev. 8 - 3 6 of 13 www.diodes.com April 2018 © Diodes Incorporated AP8800 Application Information (Cont.) LED Current Dimming The LED current can be dimmed in two ways; 1. Analog Dimming: Where a dc voltage is applied to the CTRL pin or 2. PWM Dimming: Where a Pulse Width Modulated (PWM) signal is applied to the CTRL pin. Analog Dimming If the CTRL pin is driven by an external voltage (lower than 2.5V), the average LED current in this case is: SET TH REF CTRL LED R V V VI A DC signal from 0.3V to 2.5V applied to the CTRL pin will vary the LED current from 24% to 200% of nominal LED current. This give s an approximate 8:1 dimming range; care, should be exercised when overdriving the CTRL pin to 200% of nominal LED cu rrent not to exceed the power dissipation of the package. The graph in F igure 4 shows values of nominal average output current for 3 values of current setting resistor (R SET) in the typical application circuit shown on Figure 1, for different voltages applied on the CTRL pin. Figure 4 LED Current Setting vs. RSET and VCTRL LED Current Versus RSET and VCTRL 0.3 0.33 0.39 0.47 0.56 0.56 0.68 0.75 0.82 1.2 0.3 0.39 0.47 1.2 0.82 0.68 1.5 2 1.5 100 150 200 250 300 350 400 RSET Value [] LED Current [mA] . LED current @ VCTRL = 1.25V LED current @ VCTRL = 2.5V LED current @ VCTRL = 0.625V NOT RECOMMENDED FOR NEW DESIGN USE AL8860 and AL8861
Document number: DS31764 Rev. 8 - 3 9 of 13 www.diodes.com April 2018 © Diodes Incorporated AP8800
Ordering Information
S : SO-8 Green 7/ 13 : Tape & ReelG : Green M8 : MSOP-8 FN : U-DFN3030-10 Part Number Package Code Packaging 7”/13” Tape and Reel Quantity Part Number Suffix AP8800SG-13 S SO-8 2500/Tape & Reel -13 AP8800M8G-13 M8 MSOP-8 2500/Tape & Reel -13 AP8800FNG-7 FN U-DFN3030-10 3000/Tape & Reel -7 Marking Information SO-8 ( Top View ) AP8800 YY WW X X Logo Part Number WW : Week : 01~52; 52 YY : Year : 08, 09,10~ G : Green X : Internal Code represents 52 and 53 week MSOP-8 AP8800 ( Top View ) Y W X Part Number Logo Y : Year : 0~9 A~Z : Green 8 7 6 5 1 2 3 4 a~z : 27~52 week; z represents W : Week : A~Z : 1~26 week; 52 and 53 week U-DFN3030-10 XX : Identification Code ( Top View ) X : A~Z : Green XY X X W Y : Year : 0~9 W : Week : A~Z : 1~26 week; a~z : 27~52 week; z represents 52 and 53 week Part Number Package Identification Code AP8800FNG-7 U-DFN3030-10 A4 NOT RECOMMENDED FOR NEW DESIGN USE AL8860 and AL8861
Document number: DS31764 Rev. 8 - 3 10 of 13 www.diodes.com April 2018 © Diodes Incorporated AP8800 Package Outline Dimensions (All dimensions in mm.) Please see http://www.diodes.com/package-outlines.html for the latest version. Package Type: SO-8 Package Type: MSOP-8 SO-8 Dim Min Max A - 1.75 A1 0.10 0.20 A2 1.30 1.50 A3 0.15 0.25 b 0.3 0.5 D 4.85 4.95 E 5.90 6.10 E1 3.85 3.95 e 1.27 Typ h - 0.35 L 0.62 0.82 0 8 All Dimensions in mm MSOP-8 Dim Min Max Typ A - 1.10 - A1 0.05 0.15 0.10 A2 0.75 0.95 0.86 A3 0.29 0.49 0.39 b 0.22 0.38 0.30 c 0.08 0.23 0.15 D 2.90 3.10 3.00 E 4.70 5.10 4.90 E1 2.90 3.10 3.00 E3 2.85 3.05 2.95 e - - 0.65 L 0.40 0.80 0.60 a 0° 8° 4° x - - 0.750 y - - 0.750 All Dimensions in mm U-DFN3030-10 Dim Min Max Typ A 0.57 0.63 0.60 A1 0 0.05 0.02 A3 0.15 b 0.20 0.30 0.25 D 2.90 3.10 3.00 D2 2.30 2.50 2.40 e 0.50 E 2.90 3.10 3.00 E2 1.50 1.70 1.60 L 0.25 0.55 0.40 z 0.375 All Dimensions in mm A e Seating Plane Gauge Plane L See Detail C Detail C c a E y x D b 0.25 4x10° 4x10° SEATING PLANE A Pin#1 ID L E E2 D b ez NOT RECOMMENDED FOR NEW DESIGN USE AL8860 and AL8861
Document number: DS31764 Rev. 8 - 3 11 of 13 www.diodes.com April 2018 © Diodes Incorporated AP8800 Suggested Pad Layout Please see http://www.diodes.com/package-outlines.html for the latest version. Package Type: SO-8 Package Type: MSOP-8 Dimensions Value (in mm) X 0.60 Y 1.55 C1 5.4 C2 1.27 Dimensions Value (in mm) C 0.650 X 0.450 Y 1.350 Y1 5.300 Dimensions Value (in mm) Z 2.60 G 0.15 X 1.80 X1 0.60 Y 0.30 C 0.50 X Y X C Y CY Z X G G NOT RECOMMENDED FOR NEW DESIGN USE AL8860 and AL8861
Document number: DS31764 Rev. 8 - 3 12 of 13 www.diodes.com April 2018 © Diodes Incorporated AP8800 Tape Orientation (Note 8) For U-DFN3030-10 NOT RECOMMENDED FOR NEW DESIGN USE AL8860 and AL8861
Document number: DS31764 Rev. 8 - 3 13 of 13 www.diodes.com April 2018 © Diodes Incorporated AP8800 IMPORTANT NOTICE DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THI S DOCUMENT, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION). Diodes Incorporated and its subsidiaries reserve the right to make modi fications, enhancements, improvements, corrections or other changes without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability a rising out of the application or use of this document or any pr oduct described herein; neither does Diodes Incorporated convey any license under its patent or trademark rights, nor the rights of others. Any Customer or user of this document or products described herein in such applications shall assume all risks of su ch use and will agree to hold Diodes Incorporated and all the companies whose products are represented on Diodes Incorporated website, harmless against all damages. Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel. Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and hold Diodes Incorporated and its representatives harmless a gainst all claims, damages, expenses, and attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized application. Products described herein may be covered by one or more Unit ed States, international or foreign patents pending. Product names and markings noted herein may also be covered by one or more United States, international or foreign trademarks. This document is written in English but may be translated into multiple lan guages for reference. Only the English version of this document is the final and determinative format released by Diodes Incorporated. LIFE SUPPORT Diodes Incorporated products are specifically not authorized for use as critical components in life suppor t devices or systems without the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein: A. Life support devices or systems are devices or systems which: 1. are intended to implant into the body, or 2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the labeling can be reasonably expected to result in significant injury to the user. B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or to affect its safety or effectiveness. Customers represent that they have all necessary expertise in the safety an d regulatory ramifications of their life support devices or systems, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any use of Diodes Incorporated products in such safety -critical, life support devices or systems, notwithstanding any devices - or systems -related information or support that may be provided by Diodes Incorporated. Further, Customers must fully indemnify Diodes Incorporat ed 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 © 2018, Diodes Incorporated www.diodes.com NOT RECOMMENDED FOR NEW DESIGN USE AL8860 and AL8861