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Details, datasheet, quote on part number:06F9213
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Datasheet text preview:
LM2931 Series Low Dropout Voltage Regulators
The LM2931 series consists of positive fixed and adjustable output voltage regulators that are specifically designed to maintain proper regulation with an extremely low inputtooutput voltage differential. These devices are capable of supplying output currents in excess of 100 mA and feature a low bias current of 0.4 mA at 10 mA output. Designed primarily to survive in the harsh automotive environment, these devices will protect all external load circuitry from input fault conditions caused by reverse battery connection, two battery jump starts, and excessive line transients during load dump. This series also includes internal current limiting, thermal shutdown, and additionally, is able to withstand temporary powerup with mirrorimage insertion. Due to the low dropout voltage and bias current specifications, the LM2931 series is ideally suited for battery powered industrial and consumer equipment where an extension of useful battery life is desirable. The `C' suffix adjustable output regulators feature an output inhibit pin which is extremely useful in microprocessorbased systems. · InputtoOutput Voltage Differential of < 0.6 V @ 100 mA · Output Current in Excess of 100 mA · Low Bias Current · 60 V Load Dump Protection · 50 V Reverse Transient Protection · Internal Current Limiting with Thermal Shutdown · Temporary MirrorImage Protection · Ideally Suited for Battery Powered Equipment · Economical 5Lead TO220 Package with Two Optional Leadforms · Available in Surface Mount SOP8, D2PAK and DPAK Packages · High Accuracy (±2%) Reference (LM2931AC) Available
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FIXED OUTPUT VOLTAGE TO92 Z SUFFIX CASE 29 Pin 1. Output 2. Ground 3. Input
1 2 3
TO220 T SUFFIX CASE 221A DPAK DT SUFFIX CASE 369A D2PAK D2T SUFFIX CASE 936
1 2 3
1
Pin 1. Input 2. Ground 3. Output
3
1
3
ADJUSTABLE OUTPUT VOLTAGE TO220 TH SUFFIX CASE 314A
1 5
TO220 1 TV SUFFIX CASE 314B
5
TO220 T SUFFIX CASE 314D
1 5
Pin 1. Adjust 2. Output Inhibit 3. Ground 4. Input 5. Output
SOIC8 D SUFFIX CASE 751 FIXED N.C. Gnd Input 8 1 (Top View) 5 4 N.C. Gnd Output
D2PAK D2T SUFFIX 1 CASE 936A
8 1
5
ADJUSTABLE Output Inhibit Gnd Input 8 1 (Top View) 5 4 Adjust Gnd Output
ORDERING INFORMATION
See detailed ordering and shipping information in the package dimensions section on page 12 of this data sheet.
DEVICE MARKING INFORMATION
See general marking and heatsink information in the device marking section on page 13 of this data sheet.
© Semiconductor Components Industries, LLC, 2000
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September, 2000 Rev. 5
Publication Order Number: LM2931/D
LM2931 Series
Representative Schematic Diagram
Input 6.0
6.0 k 350 500 Output 30 k * Adjust 30 k 3.94 k 3.0 k 30 k
30 k 6.8 V Output Inhibit 50 k 48 k EPI Bias 180 k 184 k 5.8 V
92.8 k * 11.5 k Ground *Deleted on Adjustable Regulators This device contains 26 active transistors. 35 k 10 k
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LM2931 Series
MAXIMUM RATINGS
Rating Input Voltage Continuous Transient Input Voltage ( 100 ms) Transient Reverse Polarity Input Voltage 1.0% Duty Cycle, 100 ms Power Dissipation Case 29 (TO92 Type) TA = 25°C Thermal Resistance, JunctiontoAmbient Thermal Resistance, JunctiontoCase Case 221A, 314A, 314B and 314D (TO220 Type) TA = 25°C Thermal Resistance, JunctiontoAmbient Thermal Resistance, JunctiontoCase Case 369A (DPAK) (Note 1.) TA = 25°C Thermal Resistance, JunctiontoAmbient Thermal Resistance, JunctiontoCase Case 751 (SOP8) (Note 2.) TA = 25°C Thermal Resistance, JunctiontoAmbient Thermal Resistance, JunctiontoCase Case 936 and 936A (D2PAK) (Note 3.) TA = 25°C Thermal Resistance, JunctiontoAmbient Thermal Resistance, JunctiontoCase Tested Operating Junction Temperature Range Storage Temperature Range Symbol VI VI() VI() Value 40 60 50 Unit Vdc Vpk Vpk
PD R J A R J C PD R J A R J C PD R J A R J C PD R J A R J C PD R J A R J C TJ Tstg
Internally Limited 178 83 Internally Limited 65 5.0 Internally Limited 92 6.0 Internally Limited 160 25 Internally Limited 70 5.0 40 to +125 65 to +150
W °C/W °C/W W °C/W °C/W W °C/W °C/W W °C/W °C/W W °C/W °C/W °C °C
1. DPAK JunctiontoAmbient Thermal Resistance is for vertical mounting. Refer to Figure 24 for board mounted Thermal Resistance. 2. SOP8 JunctiontoAmbient Thermal Resistance is for minimum recommended pad size. Refer to Figure 23 for Thermal Resistance variation versus pad size. 3. D2PAK JunctiontoAmbient Thermal Resistance is for vertical mounting. Refer to Figure 25 for board mounted Thermal Resistance. 4. ESD data available upon request.
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LM2931 Series
ELECTRICAL CHARACTERISTICS (Vin = 14 V, IO = 10 mA, CO = 100 µF, CO(ESR) = 0.3 , TJ = 25°C [Note 5.])
LM29315.0 Characteristic FIXED OUTPUT Output Voltage Vin = 14 V, IO = 10 mA, TJ = 25°C Vin = 6.0 V to 26 V, IO 100 mA, TJ = 40° to +125°C Line Regulation Vin = 9.0 V to 16 V Vin = 6.0 V to 26 V Load Regulation (IO = 5.0 mA to 100 mA) Output Impedance IO = 10 mA, IO = 1.0 mA, f = 100 Hz to 10 kHz Bias Current Vin = 14 V, IO = 100 mA, TJ = 25°C Vin = 6.0 V to 26 V, IO = 10 mA, TJ = 40° to +125°C Output Noise Voltage (f = 10 Hz to 100 kHz) Long Term Stability Ripple Rejection (f = 120 Hz) Dropout Voltage IO = 10 mA IO = 100 mA OverVoltage Shutdown Threshold Output Voltage with Reverse Polarity Input (Vin = 15 V) VO 4.75 4.50 Regline Regload ZO IB Vn S RR VIVO Vth(OV) VO 26 0.3 0.015 0.16 29.5 0 0.2 0.6 40 26 0.3 0.015 0.16 29.5 0 0.2 0.6 40 V V 60 5.8 0.4 700 20 90 30 1.0 60 5.8 0.4 700 20 90 30 1.0 µVrms mV/kHR dB V 200 200 mA 2.0 4.0 14 10 30 50 2.0 4.0 14 10 30 50 mV m 5.0 5.25 5.50 4.81 4.75 5.0 5.19 5.25 mV V Symbol Min Typ Max Min LM2931A5.0 Typ Max Unit
5. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient as possible.
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LM2931 Series
ELECTRICAL CHARACTERISTICS (Vin = 14 V, IO = 10 mA, CO = 100 µF, CO(ESR) = 0.3 , TJ = 25°C [Note 5.])
LM2931C Characteristic ADJUSTABLE OUTPUT Reference Voltage (Note 6., Figure 18) IO = 10 mA, TJ = 25°C IO 100 mA, TJ = 40 to +125°C Output Voltage Range Line Regulation (Vin = VO + 0.6 V to 26 V) Load Regulation (IO = 5.0 mA to 100 mA) Output Impedance IO = 10 mA, IO = 1.0 mA, f = 10 Hz to 10 kHz Bias Current IO = 100 mA IO = 10 mA Output Inhibited (Vth(OI) = 2.5 V) Adjustment Pin Current Output Noise Voltage (f = 10 Hz to 100 kHz) LongTerm Stability Ripple Rejection (f = 120 Hz) Dropout Voltage IO = 10 mA IO = 100 mA OverVoltage Shutdown Threshold Output Voltage with Reverse Polarity Input (Vin = 15 V) Output Inhibit Threshold Voltages Output "On": TJ = 25°C TJ = 40° to +125°C Output "Off": TJ = 25°C TJ = 40° to +125°C Output Inhibit Threshold Current (Vth(OI) = 2.5 V) Vref 1.14 1.08 VO range Regline Regload ZO IB IAdj Vn S RR VIVO Vth(OV) VO Vth(OI) 2.50 3.25 Ith(OI) 2.15 2.26 30 1.90 1.20 50 2.50 3.25 2.15 2.26 30 1.90 1.20 50 µA 26 0.3 0.015 0.16 29.5 0 0.2 0.6 40 26 0.3 0.015 0.16 29.5 0 0.2 0.6 40 V V V 0.10 6.0 0.4 0.2 0.2 140 0.4 0.003 1.0 1.0 0.10 6.0 0.4 0.2 0.2 140 0.4 0.003 1.0 1.0 µA µVrms/V %/kHR %/V V 40 40 mA 3.0 to 24 1.20 2.7 to 29.5 0.2 0.3 1.26 1.32 1.5 1.0 1.17 1.15 3.0 to 24 1.20 2.7 to 29.5 0.2 0.3 1.23 1.25 1.5 1.0 V mV/V %/V m/V V Symbol Min Typ Max Min LM2931AC Typ Typ Unit
5. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient as possible. 6. The reference voltage on the adjustable device is measured from the output to the adjust pin across R1.
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