LM79XX. 3-Terminal 1A Negative Voltage Regulator. Features. Description. Internal Block Digram.
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1 3-Terminal 1A Negative oltage Regulator Features Output Current in Excess of 1A s of -5, -6, -8, -9, -10, -12, -15, -18 and - 24 Internal Thermal Overload Protection Short Circuit Protection Output Transistor Safe Operating Area Compensation Description The LM79XX series of three terminal negative regulators are available in TO-220 package and with several fixed output voltages, making them useful in a wide range of applications. Each type employs internal current limiting, thermal shut down and safe operating area protection, making it essentially indestructible. TO-220 in 1 1. GND 2. Input 3. Output Internal Block Digram GND R1 OLTAGE REFERENCE R2 + - Q1 Q2 Output I1 I2 PROTECTION CIRCUITRY Rsc In Input Rev Fairchild Semiconductor Corporation
2 Absolute Maximum Ratings Parameter Symbol alue Unit Input oltage I -35 Thermal Resistance Junction-Case (Note1) RθJC 5 Thermal Resistance Junction-Air (Note1, 2) RθJA 65 C/W Operating Temperature Range TOPR 0 ~ +125 C Storage Temperature Range TSTG -65 ~ +150 C Note: 1. Thermal resistance test board Size: 76.2mm * 114.3mm * 1.6mm(1S0P) JEDEC standard: JESD51-3, JESD Assume no ambient airflow Electrical Characteristics (LM7905) (I = -10, IO = 500, 0 C TJ +125 C, CI =2.2µF, CO =1µF, unless otherwise specified.) O IO = 5 to 1A, PO 15W I = -7 to -20 Line Regulation (Note3) O I = -7 to I = -8 to Load Regulation (Note3) O IO = 5 to 1.5A TJ =+25 C IO = 250 to Quiescent Current IQ TJ =+25 C I = -8 to Temperature Coefficient of D o/ T IO = / C TA =+25 C µ I = 10 Dropout oltage D Short Circuit Current ISC TJ =+25 C, I = Peak Current IPK TJ =+25 C A Note 3. Load and line regulation are specified at constant junction temperature. Changes in O due to heating effects must be taken 2
3 Electrical Characteristics (LM7906) (Continued) (I = -11, IO = 500, 0 C TJ +125 C, CI =2.2µF, CO =1µF, unless otherwise specified.) O IO = 5 to 1A, PO 15W I = -9 to -21 Line Regulation (Note1) O I = -8 to I = -9 to Load Regulation (Note1) O IO = 5 to 1.5A TJ =+25 C IO = 250 to Quiescent Current IQ TJ =+25 C I = -8 to Temperature Coefficient of D o/ T IO = / C TA =+25 C µ I = 10 Dropout oltage D Short Circuit Current ISC, I = Peak Current IPK A Note 1. Load and line regulation are specified at constant junction temperature. Changes in O due to heating effects must be taken 3
4 Electrical Characteristics (LM7908) (Continued) (I = -14, IO = 500, 0 C TJ +125 C, CI =2.2µF, CO =1µF, unless otherwise specified.) O IO = 5 to 1A, PO 15W I = -10 to -23 Line Regulation (Note1) O I = to I = -11 to Load Regulation (Note1) O IO = 5 to 1.5A TJ =+25 C IO = 250 to Quiescent Current IQ TJ =+25 C I = to Temperature Coefficient of D o/ T IO = / C TA =+25 C µ I = 10 Dropout oltage D Short Circuit Current ISC, I = Peak Current IPK A Note 1. Load and line regulation are specified at constant junction temperature. Changes in O due to heating effects must be taken 4
5 Electrical Characteristics (LM7909) (Continued) (I = -15, IO = 500, 0 C TJ +125 C, CI =2.2µF, CO =1µF, unless otherwise specified.) O IO = 5 to 1A, PO 15W I = -1.5 to -23 Line Regulation (Note1) O I = to I = -12 to Load Regulation (Note1) O IO = 5 to 1.5A IO = 250 to Quiescent Current IQ I = to Temperature Coefficient of D o/ T IO = / C TA = +25 C µ I = 10 Dropout oltage D Short Circuit Current ISC, I = Peak Current IPK A Note: 1. Load and line regulation are specified at constant junction temperature. Changes in O due to heating effects must be taken 5
6 Electrical Characteristics (LM7910) (Continued) (I = -17, IO = 500, 0 C TJ +125 C, CI =2.2µF, CO =1µF, unless otherwise specified.) O IO = 5 to 1A, Pd 15W I = -12 to -28 Line Regulation (Note1) O I = to I = -14 to Load Regulation (Note1) O IO = 5 to 1.5A IO = 250 to Quiescent Current IQ I = to Temperature Coefficient of O o/ T IO = / C 10Hz f 100kHz TA =+25 C µ I = 10 Dropout oltage D Short Circuit Current ISC, I = Peak Current IPK A Note: 1. Load and line regulation are specified at constant junction temperature. Changes in O due to heating effects must be taken 6
7 Electrical Characteristics (LM7912) (Continued) (I = -19, IO = 500, 0 C TJ +125 C, CI =2.2µF, CO =1µF, unless otherwise specified.) O IO = 5 to 1A, PO 15W I = to -27 Line Regulation (Note1) O I = to I = -16 to Load Regulation (Note1) O IO = 5 to 1.5A IO = 250 to Quiescent Current IQ I = to Temperature Coefficient of D o/ T IO = / C TA = +25 C µ I = 10 Dropout oltage D Short Circuit Current ISC, I = Peak Current IPK A Note: 1. Load and line regulation are specified at constant junction temperature. Changes in O due to heating effects must be taken 7
8 Electrical Characteristics (LM7915) (Continued) (I = -23, IO = 500, 0 C TJ +125 C, CI =2.2µF, CO =1µF, unless otherwise specified.) O IO = 5 to 1A, PO 15W I = -18 to -30 Line Regulation (Note1) O I = to I = -20 to Load Regulation (Note1) O IO = 5 to 1.5A IO = 250 to Quiescent Current IQ I = to Temperature Coefficient of D o/ T IO = / C TA =+25 C µ I = 10 Dropout oltage D Short Circuit Current ISC, I = Peak Current IPK A Note: 1. Load and line regulation are specified at constant junction temperature. Changes in O due to heating effects must be taken 8
9 Electrical Characteristics (LM7918) (Continued) (I = -27, IO = 500, 0 C TJ +125 C, CI =2.2µF, CO =1µF, unless otherwise specified.) O IO = 5 to 1A, PO 15W I = to -33 Line Regulation (Note1) O I = -21 to I = -24 to Load Regulation (Note1) O IO = 5 to 1.5A IO = 250 to Quiescent Current IQ I = -21 to Temperature Coefficient of D o/ T IO = / C TA = +25 C µ I = 10 Dropout oltage D Short Circuit Current ISC, I = Peak Current IPK A Note: 1. Load and line regulation are specified at constant junction temperature. Changes in O due to heating effects must be taken 9
10 Electrical Characteristics (LM7924) (Continued) (I = -33, IO = 500, 0 C TJ +125 C, CI =2.2µF, CO =1µF, unless otherwise specified.) O IO = 5 to 1A, PO 15W I = -27 to -38 Line Regulation (Note1) O I = -27 to I = -30 to Load Regulation (Note1) O IO = 5 to 1.5A IO = 250 to Quiescent Current IQ I = -27 to Temperature Coefficient of D o/ T IO = / C TA = +25 C µ I = 10 Dropout oltage D Short Circuit Current ISC, I = Peak Current IPK A Note: 1. Load and line regulation are specified at constant junction temperature. Changes in O due to heating effects must be taken 10
11 Typical Perfomance Characteristics Ou tp ut [-] o lta ge [- 4.9 ] in=10 Io=40 in=25 Io= TA, Ambient Temperature [ o C] Load Regulation[] Lo ad 11 Re 9 gul 7 ati 5 on 3 [m 1 ] Io=1.5A Io=0.75A TA, Ambient Temperature [ o C] Figure 1. Figure 2. Load Regulation Quiescent Current [] TA, Ambient Temperature [ o C] D t lt [] Dropout oltage [] Io=1A TA, Ambient Temperature [ o C] Figure 3. Quiescent Current Figure 4. Dropout oltage Short Circuit Current[A] Sh 0.5 ort 0.45 Cir 0.4 cui t 0.25 Cu 0.2 rre0.15 nt 0.1 [A] TA, Ambient Temperature [ o C] Figure 5. Short Circuit Current 11
12 Typical Applications CI + 2.2µF + 1µF I KA79XX - O Input LM79XX Output Figure 6. Negative Fixed output regulator CO MC7812 KA C1 2 Co 1N µF 1µF * GND + 2.2µF 1µF + C1 1 Co 1N4001 * LM7912 KA Figure 7. Split power supply ( ± 12/1A) Notes: (1) To specify an output voltage, substitute voltage value for "XX " (2) Required for stability. For value given, capacitor must be solid tantalum. If aluminium electronics are used, at least ten times value shown should be selected. CI is required if regulator is located an appreciable distance from power supply filter. (3) To improve transient response. If large capacitors are used, a high current diode from input to output (1N400l or similar) should be introduced to protect the device from momentary input short circuit. 12
13 Mechanical Dimensions Package Dimensions in millimeters TO ± ±0.20 (1.70) 1.30 ±0.10 (8.70) ø3.60 ± ± ± ±0.20 (1.46) (1.00) 1.27 ±0.10 (45 ) (3.00) (3.70) ± ± ± MAX. 2.54TYP [2.54 ±0.20] 0.80 ± TYP [ 2.54 ± ± ±
14 Ordering Information Product Number Tolerance Package Operating Temperature LM7905CT ±4% TO ~ +125 C LM7906CT LM7908CT LM7909CT LM7910CT LM7912CT LM7915CT LM7918CT LM7924CT 14
15 DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. LIFE SUPPORT POLICY FAIRCHILD S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the user. 2. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. 11/12/02 0.0m 001 Stock#DSxxxxxxxx 2002 Fairchild Semiconductor Corporation
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74LCX16374 Low oltage 16-Bit D-Type Flip-Flop with 5 Tolerant Inputs and Outputs General Description The LCX16374 contains sixteen non-inverting D-type flip-flops with 3-STATE outputs and is intended for
4-PIN PHOTOTRANSISTOR OPTOCOUPLERS
PACKAGE HAA84 SCHEMATIC 4 COLLECTOR 4 2 3 EMITTER DESCRIPTION The HAA84 Series consists of two gallium arsenide infrared emitting diodes, connected in inverse parallel, driving a single silicon phototransistor
CD4027BC Dual J-K Master/Slave Flip-Flop with Set and Reset
October 1987 Revised January 1999 CD4027BC Dual J-K Master/Slave Flip-Flop with Set and Reset General Description The CD4027BC dual J-K flip-flops are monolithic complementary MOS (CMOS) integrated circuits
74VHC74 Dual D-Type Flip-Flop with Preset and Clear
74HC74 Dual D-Type Flip-Flop with Preset and Clear General Description Ordering Code: October 1992 Revised March 1999 The HC74 is an advanced high speed CMOS Dual D- Type Flip-Flop fabricated with silicon
Io=500mA LDO with Reset function
Io=mA LDO with Reset function GENERAL DESCRIPTION The NJW4116 is a ma output low dropout voltage regulator with reset function monitoring output voltage. Reset Output Hold Time is adjustable by external
74F537 1-of-10 Decoder with 3-STATE Outputs
1-of-10 Decoder with 3-STATE Outputs General Description The 74F537 is one-of-ten decoder/demultiplexer with four active HIGH BCD inputs and ten mutually exclusive outputs. A polarity control input determines
MM74HC138 3-to-8 Line Decoder
3-to-8 Line Decoder General Description The MM74HC138 decoder utilizes advanced silicon-gate CMOS technology and is well suited to memory address decoding or data routing applications. The circuit features
74VHC393 Dual 4-Bit Binary Counter
Dual 4-Bit Binary Counter General Description March 1993 Revised March 1999 The HC393 is an advanced high speed CMOS 4-bit Binary Counter fabricated with silicon gate CMOS technology. It achieves the high
MM74HCT540 MM74HCT541 Inverting Octal 3-STATE Buffer Octal 3-STATE Buffer
February 1984 Revised February 1999 MM74HCT540 MM74HCT541 Inverting Octal 3-STATE Buffer Octal 3-STATE Buffer General Description The MM74HCT540 and MM74HCT541 3-STATE buffers utilize advanced silicon-gate
74F109 Dual JK Positive Edge-Triggered Flip-Flop
Dual JK Positive Edge-Triggered Flip-Flop General Description The F109 consists of two high-speed, completely independent transition clocked JK flip-flops. The clocking operation is independent of rise
MM74HCT138 3-to-8 Line Decoder
3-to-8 Line Decoder General Description The MM74HCT138 decoder utilizes advanced silicon-gate CMOS technology, and are well suited to memory address decoding or data routing applications. Both circuits
MM74C73 Dual J-K Flip-Flops with Clear and Preset
MM74C73 Dual J-K Flip-Flops with Clear and Preset General Description The MM74C73 dual J-K flip-flops are monolithic complementary MOS (CMOS) integrated circuits cotructed with N- and P-channel enhancement
4-PIN PHOTOTRANSISTOR OPTOCOUPLERS
PACKAGE HAA84 SCHEMATIC 4 COLLECTOR 4 2 3 EMITTER DESCRIPTION The HAA84 Series consists of two gallium arsenide infrared emitting diodes, connected in inverse parallel, driving a single silicon phototransistor
Dual N & P-Channel Enhancement Mode Field Effect Transistor. Features R DS(ON) = V GS = 4.5 V G2 6 Q1(N) TA=25 o C unless otherwise noted
Dual N & P-Channel Enhancement Mode Field Effect Transistor May General Description These dual N & P-Channel Enhancement Mode Field Effect Transistors are produced using Fairchild s proprietary, high cell
NC7SVU04 TinyLogic ULP-A Unbuffered Inverter
TinyLogic ULP-A Unbuffered Inverter General Description The NC7SVU04 is a single unbuffered inverter from Fairchild s Ultra Low Power-A (ULP-A) series of TinyLogic. ULP-A is ideal for applications that
AC INPUT/PHOTOTRANSISTOR OPTOCOUPLERS
HAA HAA3 HAA2 HAA4 DESCRIPTION The HAAX series consists of two gallium-arsenide infrared emitting diodes connected in inverse parallel driving a single silicon phototransistor output. FEATURES Bi-polar
74F175 Quad D-Type Flip-Flop
Quad D-Type Flip-Flop General Description The 74F175 is a high-speed quad D-type flip-flop. The device is useful for general flip-flop requirements where clock and clear inputs are common. The information
74VHC245 Octal Bidirectional Transceiver with 3-STATE Outputs
November 1992 Revised April 2005 74HC245 Octal Bidirectional Traceiver with 3-STATE Outputs General Description The HC245 is an advanced high speed CMOS octal bus traceiver fabricated with silicon gate
MM74HC175 Quad D-Type Flip-Flop With Clear
Quad D-Type Flip-Flop With Clear General Description The MM74HC175 high speed D-type flip-flop with complementary outputs utilizes advanced silicon-gate CMOS technology to achieve the high noise immunity
MM74HC244 Octal 3-STATE Buffer
MM74HC244 Octal 3-STATE Buffer General Description The MM74HC244 is a non-inverting buffer and has two active low enables (1G and 2G); each enable independently controls 4 buffers. This device does not
MM74C912 6-Digit BCD Display Controller/Driver
6-Digit BCD Display Controller/Driver General Description The display controllers are interface elements, with memory, that drive a 6-digit, 8-segment LED display. The display controllers receive data
74ACT825 8-Bit D-Type Flip-Flop
8-Bit D-Type Flip-Flop General Description The ACT825 is an 8-bit buffered register. They have Clock Enable and Clear features which are ideal for parity bus interfacing in high performance microprogramming
CD4021BC 8-Stage Static Shift Register
8-Stage Static Shift Register General Description The CD4021BC is an 8-stage parallel input/serial output shift register. A parallel/serial control input enables individual JAM inputs to each of 8 stages.
CD40174BC CD40175BC Hex D-Type Flip-Flop Quad D-Type Flip-Flop
Hex D-Type Flip-Flop Quad D-Type Flip-Flop General Description The CD40174BC consists of six positive-edge triggered D- type flip-flops; the true outputs from each flip-flop are externally available. The
NC7SP05 TinyLogic ULP Inverter (Open Drain Output)
TinyLogic ULP Inverter (Open Drain Output) General Description The NC7SP05 is a single inverter with open drain output from Fairchild s Ultra Low Power (ULP) series of TinyLogic. Ideal for applications
HIGH SPEED TRANSISTOR OPTOCOUPLERS
DESCRIPTION The HCPL05XX, and HCPL04XX optocouplers consist of an AlGaAs LED optically coupled to a high speed photodetector transistor housed in a compact pin small outline package. A separate connection
Distributed by: www.jameco.com 1-800-831-4242 The content and copyrights of the attached material are the property of its owner. L7900 SERIES NEGATIVE VOLTAGE REGULATORS OUTPUT CURRENT UP TO 1.5A OUTPUT
MOC8111 MOC8112 MOC8113
PACKAGE SCHEMATIC ANODE 6 N/C 6 6 CATHODE 2 5 COLLECTOR N/C 3 4 EMITTER 6 DESCRIPTION The MOC8X series consists of a Gallium Arsenide IRED coupled with an NPN phototransistor. The base of the transistor
TLF80511TF. Data Sheet. Automotive Power. Low Dropout Linear Fixed Voltage Regulator TLF80511TFV50 TLF80511TFV33. Rev. 1.
Low Dropout Linear Fixed Voltage Regulator V50 V33 Data Sheet Rev. 1.0, 2014-01-28 Automotive Power Table of Contents 1 Overview....................................................................... 3