1 Product Sample & Technical Tools & Support &. Folder Buy Documents Software Community TL317 . SLVS004I APRIL 1979 REVISED AUGUST 2016. TL317 100-mA 3-Terminal Adjustable Positive Voltage Regulator 1 Features 3 Description 1 Output Voltage Range Adjustable From The TL317 is an Adjustable three-terminal Positive - V to 32 V When Used With an External voltage regulator capable of supplying 100 mA over an output-voltage range of V to 32 V. It is Resistor Divider exceptionally easy to use and requires only two Output Current Capability of 100 mA external resistors to set the output voltage. Input Regulation Typically Per This regulator offers full overload protection available Input-Voltage Change only in integrated circuits. Included on the chip are Output Regulation Typically current-limiting and thermal-overload protection. All Ripple Rejection Typically 80 dB overload-protection circuitry remains fully functional, even when ADJUSTMENT is disconnected. Normally, 2 Applications no capacitors are required unless the device is situated far from the input filter capacitors, in which Power Supplies case an input bypass is required.
2 An optional output Portable Devices capacitor can be added to improve transient Computing and Servers response. ADJUSTMENT can be bypassed to achieve very high ripple rejection. Telecommunications HVAC: Heating, Ventilation, and Air Conditioning In addition to replacing fixed regulators, the TL317 . regulator is useful in a wide variety of other Desktop PC applications. Because the regulator is floating and Digital Signage sees only the input-to-output differential voltage, Programmable Logic Controller supplies of several hundred volts can be regulated as long as the maximum input-to-output differential is not Appliances exceeded. Its primary application is that of a programmable output regulator, but by connecting a Functional Block Diagram fixed resistor between ADJUSTMENT and OUTPUT, Input this device can be used as a precision current regulator. Supplies with electronic shutdown can be Iadj achieved by clamping ADJUSTMENT to ground, programming the output to V, where most loads draw little current.
3 +. Device Information(1). V PART NUMBER PACKAGE BODY SIZE (NOM). Over Temp & TL317D SOIC (8) mm mm Over Current Protection TL317PW TSSOP (8) mm mm Adj. TL317PS SOP (8) mm mm TL317LP TO-92 (3) mm mm (1) For all available packages, see the orderable addendum at the end of the data sheet. Output Copyright 2016, Texas Instruments Incorporated 1. An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. TL317 . SLVS004I APRIL 1979 REVISED AUGUST 2016 Table of Contents 1 Features .. 1 Device Functional Modes .. 7. 2 Applications .. 1 8 Application and Implementation .. 8. 3 Description .. 1 Application 8. 4 Revision 2 Typical Applications .. 8. 5 Pin Configuration and Functions .. 3 9 Power Supply 13. 6 4 10 13. Absolute Maximum Ratings .. 4 Layout Guidelines .. 13. ESD Ratings .. 4 Layout Example .. 13. Recommended Operating 4 11 Device and Documentation Support.
4 14. Thermal Information .. 4 Receiving Notification of Documentation Updates 14. Electrical 5 Community 14. Typical 5 Trademarks .. 14. 7 Detailed Description .. 6 Electrostatic Discharge Caution .. 14. Overview .. 6 Glossary .. 14. Functional Block Diagrams .. 6 12 Mechanical, Packaging, and Orderable Feature Description .. 7 Information .. 14. 4 Revision History NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Revision H (September 2011) to Revision I Page Added ESD Ratings table, Feature Description section, Device Functional Modes, Application and Implementation section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and Mechanical, Packaging, and Orderable Information section .. 1. Deleted Ordering Information table, see POA at the end of the 3. Changes from Revision G (September 2009) to Revision H Page Changed datasheet format from QuickSilver to 1.
5 Changed low end output voltage range from V to 1. Added MIN value of V for VI VO parameter in the Recommended Operating Conditions 4. 2 Submit Documentation Feedback Copyright 1979 2016, Texas Instruments Incorporated Product Folder Links: TL317 . TL317 . SLVS004I APRIL 1979 REVISED AUGUST 2016. 5 Pin Configuration and Functions D Package 8-Pin SOIC PS Package Top View 8-Pin SOP. Top View INPUT 1 8 NC. INPUT 1 8 OUTPUT. OUTPUT 2 7 OUTPUT. NC 2 7 NC. OUTPUT 3 6 OUTPUT. NC 3 6 ADJUSTMENT. ADJUSTMENT 4 5 NC. NC 4 5 NC. Not to scale Not to scale PW Package 8-Pin TSSOP LP Package Top View 3-Pin TO-92. Top View INPUT 1 8 NC. NC 2 7 NC. NC 3 6 OUTPUT. ADJUSTMENT 4 5 NC. Not to scale Pin Functions PIN. I/O DESCRIPTION. NAME SOIC TSSOP SOP TO-92. ADJUSTMENT 4 4 6 3 Supply reference voltage INPUT 1 1 1 1 I Input supply voltage NC 5, 8 2, 3, 5, 7, 8 2, 3, 4, 5, 7 No internal connection Output voltage, output terminals are all internally OUTPUT 2, 3, 6, 7 6 8 2 O. connected.
6 Copyright 1979 2016, Texas Instruments Incorporated Submit Documentation Feedback 3. Product Folder Links: TL317 . TL317 . SLVS004I APRIL 1979 REVISED AUGUST 2016 6 Specifications Absolute Maximum Ratings over operating free-air temperature range (unless otherwise noted) (1). MIN MAX UNIT. Input-to-output differential voltage, Vl VO 35 V. Operating virtual-junction temperature, TJ 150 C. Storage temperature range, Tstg 65 150 C. (1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. ESD Ratings VALUE UNIT. Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001 (1) 2000. V(ESD) Electrostatic discharge V. Charged-device model (CDM), per JEDEC specification JESD22-C101 (2) 1000 (3).
7 (1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process. (2) JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process. (3) Tested on PW package. Recommended Operating Conditions MIN NOM MAX UNIT. VI VO Input-to-output voltage differential 35 V. IO Output current 100 mA. TL317C 0 125 C. TJ Operating virtual-junction temperature TL317 40 125 C. Thermal Information TL317 . THERMAL METRIC (1) D (SOIC) PW (TSSOP) PS (SOP) LP (TO-92) UNIT. 8 PINS 8 PINS 8 PINS 3 PINS. R JA Junction-to-ambient thermal resistance 170 C/W. R JC(top) Junction-to-case (top) thermal resistance 51 C/W. R JB Junction-to-board thermal resistance C/W. JT Junction-to-top characterization parameter C/W. JB Junction-to-board characterization parameter C/W. (1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report.
8 4 Submit Documentation Feedback Copyright 1979 2016, Texas Instruments Incorporated Product Folder Links: TL317 . TL317 . SLVS004I APRIL 1979 REVISED AUGUST 2016. Electrical Characteristics over recommended operating virtual-junction temperature range (unless otherwise noted) (1). PARAMETER TEST CONDITIONS MIN TYP MAX UNIT. TJ = 25 C Input voltage regulation (2) VI VO = 5 V to 35 V V. IO = mA to 100 mA VO = 10 V, f = 120 Hz 65. Ripple regulation VO = 10 V, dB. 10- F capacitor between 66 80. ADJUSTMENT and ground VI = 5 V to 35 V, VO 5 V 25 mV. IO = mA to 100 mA, TJ = 25 C VO 5 V 5 mV/V. Output voltage regulation VI = 5 V to 35 V, VO 5 50 mV. IO = mA to 100 mA VO 5 V 10 mV/V. Output voltage change with temperature TJ = 0 C to 125 C 10 mV/V. Output voltage long-term drift After 1000 hours at TJ = 125 C and VI VO = 35 V 3 10 mV/V. Output noise voltage f = 10 Hz to 10 kHz, TJ = 25 C 30 V/V. Minimum output current to maintain VI VO = 35 mA. regulation Peak output current VI VO 35 V 100 200 mA.
9 ADJUSTMENT current 50 100 A. Change in ADJUSTMENT current VI VO = V to 35 V, IO = mA to 100 mA 5 A. Reference voltage IO = mA to 100 mA, VI VO = 5 V to 35 V, V. (output to ADJUSTMENT) P rated dissipation (1) Unless otherwise noted, these specifications apply for the following test conditions: VI VO = 5 V and IO = 40 mA. Pulse-testing techniques must be used that maintain the junction temperature as close to the ambient temperature as possible. All characteristics are measured with a F capacitor across the input and a 1- F capacitor across the output. (2) Input voltage regulation is expressed here as the percentage change in output voltage per 1-V change at the input. Typical Characteristic 2. Dropout Voltage (V). 0 10 20 30 40 50 60 70 80 90 100. Load Current (mA) D002. Figure 1. Dropout Voltage vs Load Current (TJ = 25 C). Copyright 1979 2016, Texas Instruments Incorporated Submit Documentation Feedback 5. Product Folder Links: TL317 . TL317 . SLVS004I APRIL 1979 REVISED AUGUST 2016 7 Detailed Description Overview The TL317 device is an Adjustable three-terminal Positive -voltage regulator capable of supplying up to 100 mA.
10 Over an output-voltage range of V to 32 V. It requires only two external resistors to set the output voltage. The TL317 device is versatile in its applications, including uses in programmable output regulation and local on- card regulation. Also, by connecting a fixed resistor between the ADJUSTMENT and OUTPUT terminals, the TL317 device can function as a precision current regulator. An optional output capacitor can be added to improve transient response. The ADJUSTMENT terminal can be bypassed to achieve very high ripple-rejection ratios, which are difficult to achieve with standard three-terminal regulators. Functional Block Diagrams Input Iadj +. V. Over Temp &. Over Current Protection Adj. Output Copyright 2016, Texas Instruments Incorporated Figure 2. Equivalent Schematic INPUT. 310 310 190 251 k . k . 360 . 200 k . 124 k . 30 k . pF. 30. 195 k k 70 k pF k 670 . OUTPUT. ADJUSTMENT. 40 . Copyright 2016, Texas Instruments Incorporated All component values shown are nominal Figure 3.