AP1501_V01 DIODES | Alldatasheet

Document overview

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  • PDF pages: 13

Technical content

Features

  • Output Voltage: 3.3V, 5V, 12V and Adjustable Output Version
  • Adjustable Version Output Voltage Range, 1.23V to 37V+4%
  • 150kHz +15% Fixed Switching Frequency
  • Voltage Mode Non-Synchronous PWM Control
  • Thermal-Shutdown and Current-Limit Protection
  • ON/OFF Shutdown Control Input
  • Operating Voltage can be up to 40V
  • Output Load Current: 3A
  • Low Power Standby Mode
  • Built-In Switching Transistor on Chip
  • TO263-5 and TO220-5 Packages
  • Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
  • Halogen- and Antimony-Free. “Green” Device (Note 3)
  • For automotive applications requiring specific change control (i.e. parts qualified to AEC-Q100/101/200, PPAP capable, and manufactured in IATF 16949 certified facilities), please contact us or your local Diodes representative. https://www.diodes.com/quality/product-definitions/ Pin Assignments ( Top View )

1 VIN

3 Gnd

2 Output

( Top View ) TO220-5L/TO220-5L(R)

Applications

  • Simple High-Efficiency Step-Down Regulator
  • On-Card Switching Regulators
  • Positive to Negative Converter 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 contain <900ppm bromine, <900ppm chlori ne (<1500ppm total Br + Cl) and <1000ppm antimony compounds. TO220-5L TO263-5L

Document number: DS31014 Rev. 14 - 2 2 of 13 www.diodes.com March 2021 © Diodes Incorporated AP1501 1 2 412V DC Input Cin Capacitor FB SD D1 B340A Vin Gnd OutputAP1501 -33 Co Capacitor Inductor 33uH 3.3V/3A Output Load Typical Applications Circuit (1) Fixed Type Circuit Typical Applications Circuit (continued) (2) Adjustable Type Circuit 1 2 412V DC Input Cin Capacitor FB SD D1 (Note 5) Vin Gnd OutputAP1501 Co Capacitor 47uH 5V/ 3A Output Load R2 R1 Vout = VFB ×(1 + VFB = 1.23V R2 = 1K ~ 3K (3) Delay Start Circuit 1 2 412V DC Input Cin Capacitor FB SD D1 (Note 5) Vin Gnd OutputAP1501 Co Capacitor 47uH 5V/ 3A Output Load R2 R1 CDELAY 0.1uF 10K RDELAY Note: Suggested Diodes Incorporated’s Power Schottky: B340A or PDS340 series.

Document number: DS31014 Rev. 14 - 2 3 of 13 www.diodes.com March 2021 © Diodes Incorporated AP1501 Pin Descriptions Name Description VIN Operating Voltage Input Output Switching Output Gnd Ground FB Output Voltage Feedback Control SD ON/OFF Shutdown Functional Block Diagram Current Source bias 1.235V Reference 2.5V Regulator 150kHz OSC. Start up Thermal Shutdown Pre-driver Comp Comp Gnd Output VIN SD FB 220mV200mV Switch _ _Amp Comp Frequency compen- sation

Document number: DS31014 Rev. 14 - 2 4 of 13 www.diodes.com March 2021 © Diodes Incorporated AP1501 Absolute Maximum Ratings Symbol Parameter Rating Unit ESD MM Machine Model ESD Protection 400 V VCC Supply Voltage +45 V VSD ON/OFF Pin Input Voltage -0.3 to +40 V VFB Feedback Pin Voltage -0.3 to +40 V VOUT Output Voltage to Ground -1 V PD Power Dissipation Internally Limited W TST Storage Temperature -65 to +150 °C TJ Operating Junction Temperature -20 to +125 °C TMJ Maximum Junction Temperature +150 °C

Document number: DS31014 Rev. 14 - 2 5 of 13 www.diodes.com March 2021 © Diodes Incorporated AP1501 Electrical Characteristics (@ TA = +25°C, unless otherwise specified.) Unless otherwise specified, VIN = 12V for 3.3V, 5V, adjustable version and VIN = 24V for the 12V version. ILOAD = 0.5A Specifications with boldface type are for full operating temperature range, the other type are for TJ = +25ºC. Symbol Parameter Conditions Min Typ. Max Unit IFB Feedback Bias Current VFB = 1.3V (Adjustable Version Only) (Note 4) — 40 nA 100 FOSC Oscillator Frequency — 127 150 173 kHz 110 — 173 VSAT Saturation Voltage IOUT = 3A No Outside Circuit VFB = 0V Force Driver On — 1.3 1.4 V 1.5 DC Max. Duty Cycle (ON) VFB = 0V Force Driver On — 100 — Min. Duty Cycle (OFF) VFB = 12V Force Driver Off — 0 — ICL Current Limit Peak Current No Outside Circuit VFB = 0V Force Driver On 3.6 4.0 5.5 A 6.5 IL Output = 0 Output Leakage Current — — 200 200 µA Output = -1 — 2 60 60 mA IQ Quiescent Current VFB = 12V Force Driver Off — 5 10 mA ISTBY Standby Quiescent Current ON/OFF Pin = 5V VIN = 40V — 150 250 µA 350 VIL ON/OFF Pin Logic Input Threshold Voltage Low (Regulator ON) — 1.3 0.6 V VIH High (Regulator OFF) 2.0 — IH ON/OFF Pin Logic Input Current VLOGIC = 2.5V (OFF) — 15 25 µA IL ON/OFF Pin Input Current VLOGIC = 0.5V (ON) — 0.02 5 θJA Thermal Resistance Junction to Ambient TO263-5 (Note 5) — 37 — °C/W TO220-5 (Note 5) — 31 — θJC Thermal Resistance Junction to Case TO263-5 (Note 5) — 6 — °C/W TO220-5 (Note 5) — 5 — Notes: 4. Feedback pin removed from output and connected to 0V to force the output transistor switch ON. Feedback pin removed from output and connected to 12V for the 3.3V, 5V, and the ADJ. version, and 15V for the 12V version, to force the output transistor switch OFF. 5. Test condition: Device mounted with copper area of approximately 3 in2,1oz, no air flow.

Document number: DS31014 Rev. 14 - 2 6 of 13 www.diodes.com March 2021 © Diodes Incorporated AP1501 Electrical Characteristics (continued) (@ TA = +25°C, unless otherwise specified.) Specifications with boldface type are for full operating temperature range, the other type are for TJ = +25°C. — Symbol Parameter Conditions VMin Typ. VMax Unit AP1501-ADJ FBV Output Feedback 4.5V < VIN < 40V 0.2A < ILOAD < 3A VOUT programmed for 3V 1.193 1.18 1.23 1.267 1.28 V η Efficiency VIN = 12V, ILOAD = 3A — 73 — % AP1501-3.3V OUTV Output Voltage 4.75V < VIN < 40V 0.2A < ILOAD < 3A 3.168 3.135 3.3 3.432 3.465 V η Efficiency VIN = 12V, ILOAD = 3A — 73 — % AP1501-5V OUTV Output Voltage 7V < VIN < 40V 0.2A < ILOAD < 3A 4.8 4.75 5 5.2 5.25 V η Efficiency VIN = 12V, ILOAD = 3A — 80 — % AP1501-12V OUTV Output Voltage 15V < VIN < 40V 0.2A < ILOAD < 3A 11.52 11.4 12 12.48 12.6 V η Efficiency VIN = 15V, ILOAD = 3A — 90 — %

Document number: DS31014 Rev. 14 - 2 7 of 13 www.diodes.com March 2021 © Diodes Incorporated AP1501 Performance Characteristics Typical Performance Characteristics Normalized Output Voltage 4.90 4.95 5.00 5.05 5.10 -50 -25 0 25 50 75 100 125 OUTPUT VOLTAGE (V) VIN =20V, I LOAD=3A Normalized at TJ=25oC JUNCTION TEMPERATURE(oC) JUNCTION TEMPERATURE(oC) SWITCH CURRENT LIMIT (A) Switch Current Limit 0.0 5.0 10.0 15.0 20.0 25.0 -50 -25 0 25 50 75 100 125 JUNCTION TEMPERATURE(oC) SUPPLY CURRENT (mA) Operating Quiescent Current JUNCTION TEMPERATURE(oC) EFFICIENCY (%) Efficiency 100 8 10 15 20 25 30 35 40 3.3V 3A Load 0.60 0.80 1.00 1.20 1.40 1.60 0.5 1 2 3 SWITCH CURRENT(A) SATURATION VOLTAGE (V) 1 : -40 oC 2 : 25 oC 3 : 125 oC Switch Saturation Voltage 3.50 4.00 4.50 5.00 5.50 -50 -25 0 25 50 75 100 125 VIN=12V, VOUT=5V SUPPLY VOLOTAGE (V) CURRENT (uA) 0.0 40.0 80.0 120.0 160.0 200.0 Shutdown Quiescent Current 10 20 30 40 VON/OFF=5V 1 : -40 oC 2 : 25 oC 3 : 125 oC Switch ON Switch OFF

Document number: DS31014 Rev. 14 - 2 8 of 13 www.diodes.com March 2021 © Diodes Incorporated AP1501 Performance Characteristics (continued) JUNCTION TEMPERATURE(oC) BIAS CURRENT (nA) Feedback Pin Bias Current 1.4 5 10 15 20 22 23 24 25 ON/OFF PIN VOLTAGE (V) CURRENT (uA) ON/OFF Pin Current (Sinking) 0.0 30.0 60.0 90.0 120.0 150.0 VIN=40V -40oC TJ 125oC≤ ≤ 0.0 10.0 20.0 30.0 40.0 50.0 -50 -25 0 25 50 75 100 125 Adjustable Version Only 0.0 1.0 2.0 3.0 4.0 5.0 -50 -25 0 25 50 75 100 125 JUNCTION TEMPERATURE (oC) SUPPLY VOLTAGE (V) Minimum Operating Supply Voltage VOUT=1.23V ILOAD=120mA JUNCTION TEMPERATURE (oC) THRESHOLD VOLTAGE (V) ON/OFF Threshold Voltage 0.0 1.0 2.0 3.0 4.0 5.0 -50 -25 0 25 50 75 100 125 Switch Frequency JUNCTION TEMPERATURE (oC) FREQUENCY (kHz) 0.0 50.0 100.0 150.0 200.0 -50 -25 0 25 50 75 100 125

Document number: DS31014 Rev. 14 - 2 9 of 13 www.diodes.com March 2021 © Diodes Incorporated AP1501 Operation Description Pin Functions +VIN This is the positive input supply for the IC switching regulator. A suitable input bypass capacitor must be present at this pin to minimize voltage transients and to supply the switching currents needed by the regulator. Ground Circuit ground. Output Internal switch. The voltage at this pin switches between (+V IN – VSAT) and approximately – 0.5V, with a duty cycle of approximately VOUT / VIN. To minimize coupling to sensitive circuitry, the PC board copper area connected to this pin should be kept a minimum. Feedback Senses the regulated output voltage to complete the feedback loop. ON/OFF Allows the switching regulator circuit to be shut down using logic level signals, thus dropping the total input supply current to approximately 150μA. Pulling this pin below a threshold voltage of approximately 1.3V turns the regulator on, and pulling this pin above 1.3V (up to a maximum of 40V) shuts the regulator down. If this shutdown feature is not needed, the ON/OFF pin can be wired to the ground pin, or it can be left open. In either case the regulator will be in the ON condition. Thermal Considerations The AP1501 is available in the 5-pin surface mount TO-263 and TO-220. Under most conditions, the TO-220 package requires a heat sink. The size of the heat sink depends on the input voltage, the output voltage, the load current, and the ambient temperature. The AP1501 junction temperature rises above ambient temperature for a 3A load and different input and output voltages. The data for these curves was taken with the AP1501 (TO-220 package) operating as a buck switching regulator in an ambient temperature of 25°C (still air). These temperature rise numbers are all approximate and there are many factors that can affect these temperatures. Higher ambient temperatures require more heat sinking. The TO-263 surface mount package tab is designed to be soldered to the copper on a printed circuit board. The copper and the board are the heat sink for this package and the other heat producing components, such as the catch diode and inductor. The PC board copper area that the package is soldered to should be at least 0.4 in 2, and ideally should have 2 or more square inches of 2 oz. Additional copper area improves the thermal characteristics, but with copper areas greater than approximately 6 in2, only small improvements in heat dissipation are realized. If further thermal improvements are needed, double-sided multilayer PC boards with large copper areas and/or airflow are recommended. The AP1501 (TO-263 package) junction temperature rises above ambient temperature with a 2A load for various input and output voltages. This data was taken with the circuit operating as a buck switching regulator with all components mounted on a PC board to simulate the junction temperature under actual operating conditions. This curve can be used for a quick check for the approximate junction temperature for various conditions, but be aware that there are many factors that can affect the junction temperature. When load currents higher than 2A are used, double- sided or multilayer PC boards with large copper areas and/or airflow might be needed, especially for high ambient temperatures and high output voltages. For the best thermal performance, wide copper traces and generous amounts of printed circuit board copper should be used in the board layout. (One exception to this is the output (switch) pin, which should not have large areas of copper.) Large areas of copper provide the best transfer of heat (lower thermal resistance) to the surrounding air, and moving air lowers the thermal resistance even further. Package thermal resistance and junction temperature rise numbers are all approximate, and there are many factors that will affect these numbers. Some of these factors include board size, shape, thickness, position, location, and even board temperature. Other factors are trace width, total printed circuit copper area, copper thickness, the board being single or double-sided, the board being multilayered, and the amount of solder on the board. The effectiveness of the PC board to dissipate heat also depends on the size, quantity, and spacing of other components on the board, as well as whether the surrounding air is still or moving. Furthermore, some of these components such as the catch diode will add heat to the PC board, and the heat can vary as the input voltage changes. For the inductor, depending on the physical size, type of core material, and the DC resistance, it could either add heat to the board or act as a heat sink taking heat away from the board.

Document number: DS31014 Rev. 14 - 2 10 of 13 www.diodes.com March 2021 © Diodes Incorporated AP1501

Ordering Information

(Note 4) Voltage Package Code Package (Note 7) Lead Free/ Green Quantity Part Number Suffix Status (Note 6) Tube 13’’Tape and reel AP1501-50K5G-13 50 K5 TO263-5 Green 800 NA -13 Active AP1501-K5G-13 ADJ K5 TO263-5 Green 800 NA -13 Active AP1501-12K5G-13 12 K5 TO263-5 Green 800 NA -13 NRND AP1501-33K5G-13 33 K5 TO263-5 Green 800 NA -13 NRND Notes: 6. AP1501-50K5G-13 and AP1501-K5G-13 are Active. All other versions are NRND or EOL. For recommended alternatives to NRND/EOL devices, Contact Us. 7. For packaging details, go to our website at: https://www.diodes.com/design/support/packaging/diodes -packaging/diodes-package-outlines-and-pad-layouts/. AP1501 - XX XXX X - X Output version Package Lead Free Packing Blank : Adjustable K5 : TO263-5 L : Lead Free U : Tube 33 : 3.3V T5 : TO220-5 G : Green 13 : Tape & Reel 50 : 5.0V T5R : TO220-5(R) 12 : 12V

Document number: DS31014 Rev. 14 - 2 11 of 13 www.diodes.com March 2021 © Diodes Incorporated AP1501 Marking Information (1) TO263-5 (2) TO220-5

Document number: DS31014 Rev. 14 - 2 12 of 13 www.diodes.com March 2021 © Diodes Incorporated AP1501 Package Outline Dimensions Please see http://www.diodes.com/package-outlines.html for the latest version. (1) Package Type: TO263-5 TO263-5 Dim Min Max A 4.07 4.85 A1 1.14 1.40 b 0.66 1.02 c 0.36 0.64 D 8.65 9.65 E 9.78 10.54 e 1.57 1.85 L 14.61 15.88 L1 2.29 2.79 L2 - 2.92 All Dimensions in mm (2) Package Type: TO220-5 TO220-5 Dim Min Max A 3.55 4.85 b 0.51 1.14 b1 1.14 1.78 C 0.31 1.14 D 14.20 16.50 D1 5.84 6.86 E 9.78 10.54 e 1.6 1.8 e1 6.6 7.0 F 0.51 1.40 J1 2.03 2.92 L 12.72 14.72 L1 3.66 6.35 P 3.53 4.09 Q 2.54 3.43 All Dimensions in mm Suggested Pad Layout Please see http://www.diodes.com/package-outlines.html for the latest version. (1) Package Type: TO263-5 Dimensions Value (in mm) X 10.9 X1 1.05 Y 15.7 Y1 9.1 Y2 2.5 C 1.7 e b A L D c E A F C D E L b ØP Q J1e SEATING PLANE Y X C

Document number: DS31014 Rev. 14 - 2 13 of 13 www.diodes.com March 2021 © Diodes Incorporated AP1501 IMPORTANT NOTICE 1. DIODES INCORPORATED AND ITS SUBSIDIARIES (“DIODES”) MAKE NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO ANY INFORMATION CONTAINED IN THIS DOCUMENT, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTIC ULAR PURPOSE OR NON -INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY RIGHTS (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION). 2. The Information contained herein is for informational purpose only and is provided only to illustrate the operati on of Diodes products described herein and application examples. Diodes does not assume any liability arising out of the application or use of this document or any product described herein. This document is intended for skilled and technically trained engi neering customers and users who design with Diodes products. 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