AP3783R PRIMARY SIDE REGULATED SWITCHING MODE POWER SUPPLY CONTROLLER NEW PRODUCT Description Pin Assignments The AP3783R is a high frequency, high efficiency and high accuracy switching mode power supply controller to drive power MOSFET for 5V/2A battery charger/adapter applications. The controller regulates the output voltage and current in the primary side by piece-wise Pulse Frequency Modulation (p-PFM) in discontinuous conduction mode (DCM). The system operating frequency reduces linearly from heavy load to light load in each interval of the p-PFM, and enters constant current mode when the load current equals to the maximum system output current. (Top View) Pin 1 Mark The AP3783R provides accurate constant voltage (CV), constant current (CC) and outstanding dynamic performance without requiring an opto-coupler. It also eliminates the need of loop compensation circuitry while maintaining stability. CS 1 6 CPC GND 2 5 DRI VCC 3 4 FB SOT26 The AP3783R provides valley turn-on function and 3-Segment drive current to improve the power supply EMI performance. The AP3783R also has built-in fixed cable voltage drop compensation (8%, 4% and 2% of nominal system output voltage to meet various cables with different length and gauge) and adjustable line voltage compensation. The AP3783R achieves excellent regulation and high average efficiency, less than 2s startup time for 30mW standby power solution. When AP3783R is used with APR3415, good undershoot and efficiency performances can be achieved. The AP3783R is packaged in SOT26. Features Applications Adapters/Chargers Standby and Auxiliary Power Supplies Notes: Less than 30mW Standby Power Consumption Meet Efficiency Requirement of COC Trier2 Valley Turn-on to Reduce Switching Loss and Improve EMI Piece-wise Frequency Reduction to Enhance Conversion Efficiency and Suppress Audio Noise Over Voltage Protection (OVP) Over Temperature Protection (OTP) Short Circuit Protection (SCP) with Hiccup 3-Segment Drive Current for Radiative EMI Suppression Operating Frequency Jitter Function for Conductive EMI Suppression Drive MOSFET for 5W to 20W Battery Charger/Adapter Applications SOT26 SMD Package Comply with Level 3 of IPC/JEDEC J-STD033A Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) Halogen and Antimony Free. “Green” Device (Note 3) 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. 2. See http://www.diodes.com/quality/lead_free.html 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 contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and <1000ppm antimony compounds. AP3783R Document number: DS37448 Rev. 5 - 2 1 of 17 www.diodes.com October 2015 © Diodes Incorporated AP3783R Typical Applications Circuit FR1 T1 DIN LIN R1 Np CIN1 CIN2 D1 RST2 Da R0 C2 U2 APR3415 Na CVCC R4 U1 2 3 CCPC CPC 6 GND DRI 5 VCC FB 4 CS R2 Ra + 1 COUT + Ns + + NEW PRODUCT C1 RST1 Q1 DRAIN GND DRAIN GND VDET VCC DRISR AREF RFB1 C4 5V/2A R3 C3 R5 AP3783R CY1 RFB2 RCS Pin Descriptions Pin Number Pin Name Function The CS is the current sense pin of the IC. The IC will turn off the power MOSFET according to the voltage on the CS pin 1 CS 2 GND The ground of the controller 3 VCC The VCC pin supplies the power for the IC. In order to get the correct operation of the IC, a capacitor with low ESR should be placed as close as possible to the VCC pin 4 FB The CV and CC regulation are realized based on the voltage sampling of this pin 5 DRI Output pin to drive external MOSFET 6 CPC A capacitor about 50nF should be connected to this pin. The voltage of CPC pin is linear to load of the system and it is used for the functions of cable voltage drop compensation and audio noise suppression AP3783R Document number: DS37448 Rev. 5 - 2 2 of 17 www.diodes.com October 2015 © Diodes Incorporated AP3783R Functional Block Diagram VCC 3 CS NEW PRODUCT OVP/SCP/OTP/ OCkP/Max tONP PFM tONS Detector 0.83V tDELAY tOFF COMP 4 Pro tONS Regulator & Bias UVLO Timer FB 2 t 256ms Dynamic Response tDELAY GND Dyn UV/OV UV/OV PFM LL Mode Constant Voltage Control EA VFB_REF R CV_CTRL Q 5 S Line VLINE Compensation Peak Current Control & LEB VCS_X Select VLOAD CS Driver DRI VCS_REF VCS_X UV Valley _on Shutdown CC_CTRL Detect_on 1 tONS Constant Current Control R Q Vload S Low Pass Filter VCPC Cable Compensation VCS_X Light Load Detection LL Mode t 256ms 6 CPC AP3783R Document number: DS37448 Rev. 5 - 2 3 of 17 www.diodes.com October 2015 © Diodes Incorporated AP3783R Absolute Maximum Ratings (Note 4) Symbol VCC VCS, VCPC VFB Parameter Unit -0.3 to 35 V Voltage on CS, CPC Pin -0.3 to 7 V -0.4 to 10 V Internally Limited A Operating Junction Temperature -40 to +150 ºC TSTG Storage Temperature -65 to +150 ºC TLEAD Lead Temperature (Soldering, 10 sec) +300 ºC Thermal Resistance (Junction to Ambient) 200 ºC/W ESD (Human Body Model) 6000 V ESD (Charged Device Model) 400 V ISOURCE TJ NEW PRODUCT Rating Supply Voltage θJA FB Input Voltage Source Current from OUT Pin ESD Note 4: Stresses greater than those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “Recommended Operating Conditions” is not implied. Exposure to “Absolute Maximum Ratings” for extended periods may affect device reliability. Electrical Characteristics (@VCC=15V, TA=+25°C, unless otherwise specified.) Symbol Parameter Conditions Min Typ Max Unit STARTUP AND UVLO SECTION Startup Threshold – 13 15.5 18 V Minimal Operating Voltage – 6 6.8 7.6 V Startup Current VCC=VTH_ST-1V before startup 0 0.2 0.6 Operating Current Static current @ no load 350 500 650 Gate Voltage – 10 11 12 V ISOURCE_L Low Driver Source Current – 38 43 48 mA ISOURCE_H High Driver Source Current – 100 110 120 mA High/Low Drive Source Current Threshold Voltage – 6 6.5 7 V Sink Resistance – 5.5 6.5 7.5 – – 80 kHz 37% to 100% IO(MAX) 3.8 4.2 4.6 μs 0% to 37% IO(MAX) (Note 6) 2.15 2.4 2.65 μs 18 20 22 mV VTH_ST VOPR(MIN) STANDBY CURRENT SECTION IST ICC_OPR mA DRIVING OUTPUT SECTION VGATE VTH RSINK OPERATING FREQUENCY SECTION (LL MODE TO FULL LOAD) fS(MAX) tSAMPLE_H Maximum Operating Frequency Sample Time tSAMPLE_L IO(MAX) (Note 5) OPERATING FREQUENCY SECTION (LL MODE) VCPC(EN) CPC Pin Voltage to Enter LL Mode – VCPC(EX) CPC Pin Voltage to Exit LL Mode – 36 40 44 mV tOFF(EN) Off Time to Enter LL Mode From the end of tONS 230 256 282 μs tOFF(EX) Off Time to Exit LL Mode From the end of tONS 230 256 282 μs AP3783R Document number: DS37448 Rev. 5 - 2 4 of 17 www.diodes.com October 2015 © Diodes Incorporated AP3783R Electrical Characteristics (Cont.) (@VCC=15V, TA=+25°C, unless otherwise specified.) Symbol Parameter Conditions Min Typ Max Unit 4.5 5 5.5 % 3.6 4 4.4 kHz FREQUENCY JITTER ΔVCS/VCS fMOD VCS Modulation VCS Modulation Frequency 6.5% to 100% IO(MAX) CURRENT SENSE SECTION NEW PRODUCT VCS_H Peak Current Sense Threshold Voltage 37% to 100% IO(MAX) 828 900 972 mV VCS_L 0% to 37% IO(MAX) 460 500 540 mV RLINE Built-in Line Compensation Resistor (Note 7) 245 260 275 Leading Edge Blanking (Note 6) 400 500 600 ns tLEB CONSTANT VOLTAGE SECTION VFB Feedback Threshold Voltage Closed loop test of VOUT 3.95 4.01 4.07 V RFB FB Pin Input Resistance VFB=4V 560 700 840 k AP3783RA 7 8 9 % AP3783RB 3 4 5 % AP3783RC 1 2 3 % VFB=4V 0.47 0.5 0.53 – From the end of tONS 14.4 16 17.6 μs 74 83 92 mV VCABLE/VOUT% Cable Compensation Ratio CONSTANT CURRENT SECTION Secondary Winding Conduction tONS/tSW Duty VALLEY-ON SECTION tVAL-ON Valid Off Time of Valley-on DYNAMIC SECTION Trigger Voltage for Dynamic Function – tDELAY Delay Time for Dynamic Function From the end of tONS 115 128 141 μs VUV_H Under Voltage of FB Pin for VCS_H – 3.82 3.89 3.96 V Maximum Off Time – 6 8 10 ms VTRIGGER tOFF(MAX) PROTECTION FUNCTION SECTION VFB(OVP) Over Voltage Protection at FB Pin – 7.1 7.5 7.9 V VCC(OVP) Over Voltage Protection at VCC Pin – 28 30 32 V tONP(MAX) Maximum Turn-on Time – 13 19 25 μs VFB(SCP) Short Circuit Protection VFB @ Hiccup 2.45 2.6 2.75 V Notes: tSCP Maximum Time under VFB(SCP) – 115 128 141 ms TOTP Shutdown Temperature – +126 +140 +154 ºC THYS Temperature Hysteresis – +36 +40 +44 ºC 5. The output constant-current design value, generally set to 110% to 120% of full load. 6. Guaranteed by design. RLINE 7. Line compensation voltage on CS reference: Δ VCS _ REF 0.438 VAUX RFB1 RLINE AP3783R Document number: DS37448 Rev. 5 - 2 5 of 17 www.diodes.com October 2015 © Diodes Incorporated AP3783R Performance Characteristics Start-up Voltage vs. Ambient Temperature Start-up Current vs. Ambient Temperature 17.0 1.0 16.5 Start-up Current (mA) Start-up Voltage (V) 15.5 15.0 14.5 0.6 0.4 0.2 14.0 13.5 -40 -20 0 20 40 60 80 100 120 0.0 -40 140 -20 0 20 o 7 600 Operating Current (mA) Minimun Operating Voltage (V) 700 6 5 4 0 20 40 60 80 100 80 100 120 140 Operating Current vs. Ambient Temperature 8 -20 60 Ambient Temperature ( C) Minimal Operating Voltage vs. Ambient Temperature 3 -40 40 o Ambient Temperature ( C) 120 500 400 300 200 -40 140 -20 0 20 40 60 80 100 120 140 o o Ambient Temperature ( C) Ambient Temperature ( C) Sink Resistance vs. Ambient Temperature High Source Current vs. Ambient Temperature 14 140 12 120 Sink Resistance () 10 High Source Current (mA) NEW PRODUCT 0.8 16.0 100 80 60 8 6 4 2 40 -40 -20 0 20 40 60 80 100 120 0 -40 140 Document number: DS37448 Rev. 5 - 2 0 20 40 60 80 100 120 140 o Ambient Temperature ( C) AP3783R -20 Ambient Temperature ( C) o 6 of 17 www.diodes.com October 2015 © Diodes Incorporated AP3783R Performance Characteristics (Cont.) 14 4.5 13 Gate Voltage (V) Feedback Voltage (V) Gate Voltage vs. Ambient Temperature 5.0 4.0 3.5 3.0 2.5 -40 12 11 10 -20 0 20 40 60 80 100 120 9 -40 140 -20 0 20 40 60 80 100 120 140 o o Ambient Temperature ( C) Ambient Temperature ( C) Input Resistance of FB Pin vs. Ambient Temperature Line Compensation Resistance vs. Ambient Temperature 1200 500 1100 Input Resistance of FB Pin (k) Line Compensation Resistance () NEW PRODUCT Feedback Voltage vs. Ambient Temperature 400 300 200 100 0 -40 -20 0 20 40 60 80 100 120 800 700 600 -20 0 20 40 60 80 100 120 140 o Ambient Temperature ( C) Document number: DS37448 Rev. 5 - 2 900 500 -40 140 o AP3783R 1000 Ambient Temperature ( C) 7 of 17 www.diodes.com October 2015 © Diodes Incorporated AP3783R Operation Principle Description FR1 T1 DIN LIN RST1 R1 Np CIN1 CIN2 COUT + Ns + + NEW PRODUCT C1 D1 RST2 Da R0 C2 Ra + U2 APR3415 Na CVCC R4 U1 1 2 3 CCPC CPC 6 GND DRI 5 VCC FB 4 CS R2 Q1 DRAIN GND DRAIN GND VDET VCC DRISR AREF RFB1 C4 5V/2A R3 C3 R5 AP3783R RFB2 CY1 RCS Figure 1. Typical Application Circuit of AP3783R Figure 1 is the typical application circuit of AP3783R, which is a conventional Flyback converter with a 3-winding transformer---primary winding (NP), secondary winding (NS) and auxiliary winding (NAUX). The auxiliary winding is used for providing VCC supply voltage for IC and sensing the output voltage feedback signal to FB pin. IPK IP IPKS tOFFS IS VAUX VA tSW VSEC VS tONP tONS tOFF Figure 2. The Operation Waveform of Flyback PSR System AP3783R Document number: DS37448 Rev. 5 - 2 8 of 17 www.diodes.com October 2015 © Diodes Incorporated AP3783R Operation Principle Description (Cont.) NEW PRODUCT Figure 2 shows the typical waveforms which demonstrate the basic operating principle of AP3783R application. And the parameters are defined as following. IP---The primary side current IS ---The secondary side current IPK---Peak value of primary side current IPKS---Peak value of secondary side current VSEC---The transient voltage at secondary winding VS---The stable voltage at secondary winding when rectification diode is in conducting status, which equals the sum of output voltage VOUT and the forward voltage drop of diode VAUX---The transient voltage at auxiliary winding VA--- The stable voltage at auxiliary winding when rectification diode is in conducting status, which equals the sum of voltage VCC and the forward voltage drop of auxiliary diode tSW ---The period of switching frequency tONP ---The conduction time when primary side switch is “ON” tONS ---The conduction time when secondary side diode is “ON” tOFF ---The dead time when neither primary side switch nor secondary side diode is “ON” tOFFS --- The time when secondary side diode is “OFF” For primary-side regulation, the primary current ip(t) is sensed by a current sense resistor RCS (as shown in Figure 1).The current rises up linearly at a rate of: dip (t ) VIN (t ) dt LM (1) As illustrated in Figure 2, when the current ip(t) rises up to IPK, the switch Q1 turns off. The constant peak current is given by: I PK VCS RCS (2) The energy stored in the magnetizing inductance LM each cycle is therefore: 1 2 Eg LM I PK 2 (3) So the power transferring from the input to the output is given by: 1 2 P LM I PK f SW 2 (4) Where, the fSW is the switching frequency. When the peak current IPK is constant, the output power depends on the switching frequency fSW. Constant Voltage Operation As to constant-voltage (CV) operation mode, the AP3783R detects the auxiliary winding voltage at FB pin to regulate the output voltage. The auxiliary winding voltage is coupled with secondary side winding voltage, so the auxiliary winding voltage at D1 conduction time is: V AUX N AUX Vo Vd NS (5) Where Vd is the diode forward voltage drop. AP3783R Document number: DS37448 Rev. 5 - 2 9 of 17 www.diodes.com October 2015 © Diodes Incorporated AP3783R Operation Principle Description (Cont.) NEW PRODUCT See equation 5 0V tSAMPLE tONS Figure 3. Auxiliary Voltage Waveform The voltage detection point is at a constant delay time of the D1 on-time. The constant delay time is changed with the different primary peak current. The CV loop control function of AP3783R then generates a D1 off-time to regulate the output voltage. Constant Current Operation The AP3783R can work in constant-current (CC) mode. Figure 2 shows the secondary current waveforms. In CC operation mode, the CC control loop of AP3783R will keep a fixed proportion between D1 on-time tONS and D1 off-time tOFFS. The fixed proportion is tONS 4 tOFFS 4 (6) The relationship between the output constant-current and secondary peak current Ipks is given by: tONS 1 I O ( MAX ) I PKS 2 tONS tOFFS (7) As to tight coupled primary and secondary winding, the secondary peak current is I PKS NP I PK NS (8) Thus the output constant-current is given by: tONS 1 N 2 N I O ( MAX ) P I PK P I PK 2 NS tONS tOFFS 8 N S (9) Therefore, AP3783R can realize CC mode operation by constant primary peak current and fixed diode conduction duty cycle. Multiple Segment Constant Peak Current As to the original PFM PSR system, the switching frequency decreases with output current decreasing, which will encounter audible noise issue since switching frequency decreases to audio frequency range, about less than 20kHz. In order to avoid audible noise issue, AP3783R uses 2-segment constant primary peak current control method. At constant voltage mode, the current sense threshold voltage is of multiple segments with different loading, as shown in Figure 4, which are VCS_H for high load, VCS_L for light load and LL Mode. At constant current mode, the current sense threshold voltage is always VCS_H. AP3783R Document number: DS37448 Rev. 5 - 2 10 of 17 www.diodes.com October 2015 © Diodes Incorporated AP3783R Operation Principle Description (Cont.) VCS_REF VCS_H NEW PRODUCT High-load VCS_L Light-load fSW 80kHz 65kHz 24kHz 0.5kHz 5% 37% full load IO(MAX) Figure 4. Multiple Segment Peak Current at CV Mode It can be seen from Figure 4, with multiple segment peak current control, AP3783R power system can keep switching frequency above 24kHz at whole heavy load and most of light load to guarantee the audible noise free performance. Constant Voltage Operation in LL Mode and Dynamic Response In primary side regulation of AP3783R application, APR3415 must be used at secondary side as the output voltage regulator, low standby power and excellent dynamic response can be achieved. When the output voltage detected by APR3415 is lower than its trigger voltage, APR3415 outputs periodical signals which will be coupled to auxiliary side. When AP3783R detects the signal which is valid that the signal voltage is higher than VTRIGGER and tOFF is longer than tDELAY, AP3783R will begin an operating pulse, then primary switch immediately turns on to provide one energy pulse to output terminal and primary VCC. By fast response and cooperation, APR3415 and AP3783R can maintain a constant output voltage with very low operating frequency in LL mode and also can effectively improve dynamic performance for primary side regulation power system. The conditions of entering LL mode---VCPC<20mV and tOFF>256μs. The condition of exiting LL mode---VCPC ≥40mV or tOFF<256μs. The critical point of the LL mode is generally about 5% IO(MAX). 3-Segment Drive Current for Radiative EMI Suppression When the power switch is turned on, a turn-on spike will occur, that worsens the radiative EMI. It is an effective way to decrease drive current before gate voltage gets to miller platform. The AP3783R uses 3-segment drive current for radiative EMI suppression, as shown in Figure 5. When gate voltage gets to 6V, the AP3783R drive current switches from low current (43mA) to high current (110mA). When the gate voltage gets to 10V, the drive current will decrease gradually to 0mA until the gate voltage goes up to the clamp voltage (11V). AP3783R Document number: DS37448 Rev. 5 - 2 11 of 17 www.diodes.com October 2015 © Diodes Incorporated AP3783R Operation Principle Description (Cont.) 11V Gate Voltage 10V NEW PRODUCT High Drive Durrent=110mA 6.5V Miller Platform Drive Current Low Drive Current=43mA t Figure 5. Drive Current and Gate Voltage Leading Edge Blanking (LEB) Time When the power switch is turned on, a turn-on spike will occur on the sense-resistor. To avoid false turn off switch, a leading-edge blanking is built in. During this blanking time, the current sense comparator is disabled and the external power switch cannot be turned off. Adjustable Line Compensation and Fixed Cable Compensation The AP3783R power system can adjust line compensation by changing the upper resistor at FB pin. The line compensation capability is increased by decreasing the resistance of the upper FB resistor. Cable compensation is fixed in AP3783R. Valley Turn-on When the off time (tOFF) is lower than 16ms, AP3783R power system can work with valley turn-on. It can reduce MOSFET switching on power losses which is resulted from the equivalent output capacitance. At the same time, because of valley turn-on the switching frequency has the random jitter feature, which will be benefit for conductive EMI performance. And valley turn-on can also reduce the power switch turn on spike current and then result in the better radiative EMI performance. Frequency Jitter Even though the valley turn-on function can lead the random frequency jitter feature, an active frequency jitter function is added to AP3783R to ensure the frequency jitter performance in the whole loading condition. By adjusting the VCS_REF with deviation of 5.0% every 256μs cycle, the active frequency jitter can be realized. Short Circuit Protection (SCP) Short Circuit Protection (SCP) detection principle is similar to the normal output voltage feedback detection by sensing FB pin voltage. When the detected FB pin voltage is below VFB(SCP) for a duration of about 128ms, the SCP is triggered. Then the AP3783R enters hiccup mode that the IC immediately shuts down and then restarts, so that the VCC voltage changes between VTH_ST and UVLO threshold until VFB(SCP) condition is removed. As to the normal system startup, the time duration of FB pin voltage below VFB(SCP) should be less than tSCP to avoid entering SCP mode. But for the output short condition or the output voltage below a certain level, the SCP mode will be triggered. AP3783R Document number: DS37448 Rev. 5 - 2 12 of 17 www.diodes.com October 2015 © Diodes Incorporated AP3783R Operation Principle Description (Cont.) Figure 6 is the AP3783R normal start-up waveform that the voltage of FB pin is above VFB(SCP) during tSCP after VCC gets to the VTH_ST, which doesn’t enter the SCP mode. As shown in Figure 7, VOUT is short and the voltage of FB pin is lower than VFB(SCP) during tSCP, the AP3783R triggers the SCP and enter the hiccup mode. tSCP NEW PRODUCT VTH_ST VCC VFB(SCP) VFB 5V VOUT(SCP) VOUT Figure 6. Normal Start-up tSCP VTH_ST VCC VOPR(MIN) VFB(SCP) VFB VOUT 0V Figure 7. Short Circuit Protection (SCP) and Hiccup Mode OVP The AP3783R includes output over-voltage protection (OVP). If the voltage at FB pin exceeds VFB(OVP), the AP3783R immediately shuts down and keeps the internal circuitry enabled to discharge the VCC capacitor to the UVLO turn-off threshold. After that, the device returns to the start state and a start-up sequence ensues. OTP If the junction temperature reaches the threshold of +140⁰C, AP3783R shuts down immediately. Before VCC voltage decreases to UVLO, if the junction temperature decreases to +100⁰C, AP3783R can recover to normal operation. If not, the power system enters restart Hiccup mode until the junction temperature decreases below +100⁰C. AP3783R Document number: DS37448 Rev. 5 - 2 13 of 17 www.diodes.com October 2015 © Diodes Incorporated AP3783R Ordering Information AP3783R X XX XX- G1 Cable Compensation Voltage NEW PRODUCT Product Name A: 8% B: 4% C: 2% Product AP3783R Package SOT26 Temperature Range -40 to +85C Cable Compensation Voltage Package Packing RoHS/Green K6 : SOT26 TR : Tape & Reel G1 : Green Part Number Marking ID Packing 8% AP3783RAK6TR-G1 GNT 3000/Tape & Reel 4% AP3783RBK6TR-G1 GNW 3000/Tape & Reel 2% AP3783RCK6TR-G1 GPT 3000/Tape & Reel Marking Information (Top View) XXX AP3783R Document number: DS37448 Rev. 5 - 2 : Logo XXX: Marking ID 14 of 17 www.diodes.com October 2015 © Diodes Incorporated AP3783R Package Outline Dimensions (All dimensions in mm(inch).) (1) Package Type: SOT26 0° 2.820(0.111) 8° 3.100(0.122) 2.650(0.104) 3.000(0.118) 6 0.200(0.008) 5 4 2 3 0.300(0.012) 0.600(0.024) 1.500(0.059) 1.700(0.067) NEW PRODUCT 0.300(0.012) 0.500(0.020) Pin 1 Mark 1 0.700(0.028)REF 0.950(0.037)TYP 0.000(0.000) 0.150(0.006) 1.800(0.071) 2.000(0.079) 0.100(0.004) 0.200(0.008) 0.900(0.035) 1.450(0.057) MAX 1.300(0.051) AP3783R Document number: DS37448 Rev. 5 - 2 15 of 17 www.diodes.com October 2015 © Diodes Incorporated AP3783R Suggested Pad Layout (1) Package Type: SOT26 NEW PRODUCT E E Y G Z X Dimensions Z (mm)/(inch) G (mm)/(inch) X (mm)/(inch) Y (mm)/(inch) E (mm)/(inch) Value 3.600/0.142 1.600/0.063 0.700/0.028 1.000/0.039 0.950/0.037 AP3783R Document number: DS37448 Rev. 5 - 2 16 of 17 www.diodes.com October 2015 © Diodes Incorporated AP3783R IMPORTANT NOTICE DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS 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). 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LIFE SUPPORT Diodes Incorporated products are specifically not authorized for use as critical components in life support 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 and 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 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 © 2015, Diodes Incorporated www.diodes.com AP3783R Document number: DS37448 Rev. 5 - 2 17 of 17 www.diodes.com October 2015 © Diodes Incorporated