UA7908CKCSE3

µA7900 SERIES NEGATIVE-VOLTAGE REGULATORS www.ti.com SLVS058H – JUNE 1976 – REVISED NOVEMBER 2006 FEATURES 3-Terminal Regulators Output Current up to 1.5 A No External Components Internal Thermal-Overload Protection INPUT INPUT High Power-Dissipation Capability Internal Short-Circuit Current Limiting Output Transistor Safe-Area Compensation KTE (PowerFLEX) PACKAGE (TOP VIEW) KCS (TO-220) PACKAGE (TOP VIEW) OUTPUT INPUT COMMON • • • OUTPUT INPUT COMMON KTT (TO-263) PACKAGE (TOP VIEW) INPUT • • • • OUTPUT INPUT COMMON DESCRIPTION/ORDERING INFORMATION This series of fixed-negative-voltage integrated-circuit voltage regulators is designed to complement Series µA7900 in a wide range of applications. These applications include on-card regulation for elimination of noise and distribution problems associated with single-point regulation. Each of these regulators can deliver up to 1.5 A of output current. The internal current limiting and thermal shutdown features of these regulators essentially make them immune to overload. In addition to use as fixed-voltage regulators, these devices can be used with external components to obtain adjustable output voltages and currents and also as the power-pass element in precision regulators. ORDERING INFORMATION (1) TJ –12 V –8 V 0°C to 125°C –5 V (1) (2) ORDERABLE PART NUMBER PACKAGE (2) VO(NOM) TOP-SIDE MARKING TO-220, short shoulder – KCS Tube of 50 UA7912CKCS UA7912C PowerFLEX™ – KTE Reel of 2000 UA7908CKTER UA7908C TO-220, short shoulder – KCS Tube of 50 UA7908CKCS UA7908C PowerFLEX – KTE Reel of 2000 UA7905CKTER UA7905C TO-220, short shoulder – KCS Tube of 50 UA7905CKCS UA7905C TO-263 – KTT Reel of 500 UA7905CKTTR UA7905C For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI web site at www.ti.com. Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PowerFLEX, PowerPAD are trademarks of Texas Instruments. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 1976–2006, Texas Instruments Incorporated µA7900 SERIES NEGATIVE-VOLTAGE REGULATORS www.ti.com SLVS058H – JUNE 1976 – REVISED NOVEMBER 2006 SCHEMATIC 12 V 5 V and 8 V COMMON 5 kΩ OUTPUT 6.2 V 20 kΩ 0.2 kΩ INPUT All component values are nominal. Absolute Maximum Ratings (1) over virtual junction temperature range (unless otherwise noted) MIN MAX UNIT Vl Input voltage –35 V TJ Operating virtual junction temperature 150 °C Tstg Storage temperature range 150 °C (1) –65 Stresses beyond 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-rated conditions for extended periods may affect device reliability. Package Thermal Data (1) (1) (2) PACKAGE BOARD θJA θJC θJP (2) PowerFLEX (KTE) High K, JESD 51-5 23°C/W 3°C/W 2.7°C/W TO-220 (KCS) High K, JESD 51-5 19°C/W 17°C/W 3°C/W TO-263 (KTT) High K, JESD 51-5 25.3°C/W 18°C/W 1.94°C/W Maximum power dissipation is a function of TJ(max), θJA, and TA. The maximum allowable power dissipation at any allowable ambient temperature is PD = (TJ(max) – TA)/θJA. Operating at the absolute maximum TJ of 150°C can affect reliability. For packages with exposed thermal pads, such as QFN, PowerPAD™, or PowerFLEX, θJP is defined as the thermal resistance between the die junction and the bottom of the exposed pad. Recommended Operating Conditions Vl 2 Input voltage IO Output current TJ Operating virtual junction temperature MIN MAX µA7905 –7 –25 µA7908 –10.5 –25 µA7912 –14.5 –30 1.5 A 0 125 °C Submit Documentation Feedback UNIT V µA7900 SERIES NEGATIVE-VOLTAGE REGULATORS www.ti.com SLVS058H – JUNE 1976 – REVISED NOVEMBER 2006 uA7905 Electrical Characteristics at specified virtual junction temperature, VI = –10 V, IO = 500 mA (unless otherwise noted) TEST CONDITIONS TJ (1) IO = 5 mA to 1 A, VI = –7 V to –20 V, PD ≤ 15 W PARAMETER Output voltage (2) Input regulation Ripple rejection Output regulation µA7905C MIN TYP MAX 25°C –4.8 –5 –5.2 0°C to 125°C –4.75 –5.25 VI = –7 V to –25 V 12.5 50 VI = –8 V to –12 V 4 15 VI = –8 V to –12 V, f = 120 Hz 0°C to 125°C 54 IO = 5 mA to 1.5 A IO = 250 mA to 750 mA 60 UNIT V mV dB 15 100 5 50 mV Temperature coefficient of output voltage IO = 5 mA 0°C to 125°C –0.4 mV/°C Output noise voltage f = 10 Hz to 100 kHz 25°C 125 µV Dropout voltage IO = 1 A 25°C 1.1 25°C 1.5 2 VI = –7 V to –25 V 0.15 0.5 IO = 5 mA to 1 A 0.08 0.5 Bias current Bias current change Peak output current (1) (2) 25°C V 2.1 mA mA A Pulse-testing techniques maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must be taken into account separately. All characteristics are measured with a 2-µF capacitor across the input and a 1-µF capacitor across the output. This specification applies only for dc power dissipation permitted by absolute maximum ratings. uA7908 Electrical Characteristics at specified virtual junction temperature, VI = –14 V, IO = 500 mA (unless otherwise noted) PARAMETER Output voltage (2) Input regulation Ripple rejection Output regulation TJ (1) TEST CONDITIONS IO = 5 mA to 1 A, VI = –10.5 V to –23 V, PD ≤ 15 W µA7908C MIN TYP MAX 25°C –7.7 –8 –8.3 0°C to 125°C –7.6 VI = –10.5 V to –25 V VI = –11 V to –17 V VI = –11.5 V to –21.5 V, f = 120 Hz 0°C to 125°C IO = 5 mA to 1.5 A IO = 250 mA to 750 mA 54 –8.4 12.5 160 4 80 60 UNIT V mV dB 15 160 5 80 mV Temperature coefficient of output voltage IO = 5 mA 0°C to 125°C –0.6 mV/°C Output noise voltage f = 10 Hz to 100 kHz 25°C 200 µV Dropout voltage IO = 1 A 25°C 1.1 25°C 1.5 Bias current Bias current change VI = –10.5 V to –25 V 0.15 1 IO = 5 mA to 1 A 0.08 0.5 Peak output current (1) (2) V 2 25°C 2.1 mA mA A Pulse-testing techniques maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must be taken into account separately. All characteristics are measured with a 2-µF capacitor across the input and a 1-µF capacitor across the output. This specification applies only for dc power dissipation permitted by absolute maximum ratings. Submit Documentation Feedback 3 µA7900 SERIES NEGATIVE-VOLTAGE REGULATORS www.ti.com SLVS058H – JUNE 1976 – REVISED NOVEMBER 2006 uA7912 Electrical Characteristics at specified virtual junction temperature, VI = –19 V, IO = 500 mA (unless otherwise noted) PARAMETER Output voltage (2) Input regulation Ripple rejection Output regulation TJ (1) TEST CONDITIONS IO = 5 mA to 1 A, VI = –14.5 V to –27 V, PD ≤ 15 W TYP MAX 25°C –11.5 –12 –12.5 0°C to 125°C –11.4 –12.6 VI = –14.5 V to –25 V 5 80 VI = –16 V to –22 V 3 30 VI = –15 V to –25 V, f = 120 Hz 0°C to 125°C IO = 5 mA to 1.5 A IO = 250 mA to 750 mA 54 60 UNIT V mV dB 15 200 5 75 mV Temperature coefficient of output voltage IO = 5 mA 0°C to 125°C –0.8 mV/°C Output noise voltage f = 10 Hz to 100 kHz 25°C 300 µV Dropout voltage IO = 1 A 25°C 1.1 25°C 2 3 VI = –14.5 V to –25 V 0.04 0.5 IO = 5 mA to 1 A 0.06 0.5 Bias current Bias current change Peak output current (1) (2) 4 µA7912C MIN 25°C 2.1 V mA mA A Pulse-testing techniques maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must be taken into account separately. All characteristics are measured with a 2-µF capacitor across the input and a 1-µF capacitor across the output. This specification applies only for dc power dissipation permitted by absolute maximum ratings. Submit Documentation Feedback PACKAGE OPTION ADDENDUM www.ti.com 13-Aug-2021 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan (2) Lead finish/ Ball material MSL Peak Temp Op Temp (°C) Device Marking (3) (4/5) (6) UA7905CKCS ACTIVE TO-220 KCS 3 50 RoHS & Green SN N / A for Pkg Type 0 to 125 UA7905C UA7905CKCSE3 ACTIVE TO-220 KCS 3 50 RoHS & Green SN N / A for Pkg Type 0 to 125 UA7905C UA7905CKTTR ACTIVE DDPAK/ TO-263 KTT 3 500 RoHS & Green SN Level-3-245C-168 HR 0 to 125 UA7905C UA7908CKCS ACTIVE TO-220 KCS 3 50 RoHS & Green SN N / A for Pkg Type 0 to 125 UA7908C UA7908CKCSE3 ACTIVE TO-220 KCS 3 50 RoHS & Green SN N / A for Pkg Type 0 to 125 UA7908C (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may reference these types of products as "Pb-Free". RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption. Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of