LM109JAN ETC2

Document overview

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Technical content

Features

■ Specified to be compatible, worst case, with TTL and DTL ■ Output current in excess of 1A ■ Internal thermal overload protection ■ No external components required

Ordering Information

NS Part Number JAN Part Number NS Package Number Package Description JL109BXA JM38510/10701BXA H03A 3LD Metal Can JL109BYA JM38510/10701BYA K02C 2LD T0–3 Metal Can Connection Diagrams Metal Can Packages 20154933 See NS Package Number H03A Bottom View 20154934 See NS Package Number K02C Bottom View © 2010 National Semiconductor Corporation 201549 www.national.com

201549 Version 2 Revision 5 Print Date/Time: 2010/09/29 23:06:55

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Absolute Maximum Ratings (Note 1) Input Voltage 35V Power Dissipation Internally Limited Operating Ambient Temperature Range −55°C ≤ TA ≤ +150°C Storage Temperature Range −65°C ≤ TA ≤ +150°C Maximum Junction Temperature 150°C Thermal Resistance θJA H-Pkg (Still Air) 190°C/W H-Pkg (500LF/Min Air flow) 69°C/W K-Pkg (Still Air) 39°C/W K-Pkg (500LF/Min Air flow) TBD θJC H-Pkg 25°C/W K-Pkg 3°C/W Lead Temperature (Soldering, 10 sec.) 300°C ESD Tolerance (Note 9) 4000V Quality Conformance Inspection Mil-Std-883, Method 5005 - Group A Subgroup Description Temp °C

1 Static tests at 25

2 Static tests at 125

3 Static tests at -55

4 Dynamic tests at 25

5 Dynamic tests at 125

6 Dynamic tests at -55

7 Functional tests at 25

8A Functional tests at 125 8B Functional tests at -55

9 Switching tests at 25

10 Switching tests at 125

11 Switching tests at -55

12 Settling time at 25

13 Settling time at 125

14 Settling time at -55

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Symbol Parameter Conditions Notes Min Max Unit Sub- groups VO Output Voltage VI = 7V, IL = -5mA 4.7 5.4 V 1, 2, 3 VI = 7V, IL = -0.5A (Note 3) 4.7 5.4 V 1, 2, 3 VI = 9V, IL = -0.5A 4.7 5.4 V 1, 2, 3 VI = 25V, IL = -5mA 4.7 5.4 V 1, 2, 3 VI = 25V, IL = -100mA 4.7 5.4 V 1, 2, 3 VRLine Line Regulation 7V ≤ VI ≤ 25V, IL = -5mA -50 50 mV 1 -100 100 mV 2, 3 VRLoad Load Regulation VI = 10V, -0.5A ≤ IL ≤ -5mA -100 100 mV 1, 2, 3 ISCD Standby Current Drain VI = 7V, IL = -5mA -10 0.5 mA 1, 2, 3 VI = 25V, IL = -5mA -10 0.5 mA 1, 2, 3 ΔISCD (Line) Standby Current Drain vs Line Voltage 7V ≤ VI ≤ 25V, IL = -5mA -0.5 0.5 mA 1, 2, 3 ΔISCD (Load) Standby Current Drain vs Load Current IOS Output Short Circuit Current VI = 35V -2.0 0.01 A 1, 2, 3 VStart Minimum Start Up Input Voltage RL = 25Ω ±5% (Note 8) 9.0 V 1, 2, 3 ΔVO / ΔT Average Temperature Coefficient of Output Voltage VI = 7V, IL = -5mA (Note 4) -2.0 2.0 mV/°C 8A, 8B AC Parameters Symbol Parameter Conditions Notes Min Max Unit Sub- groups NO Output Noise Voltage VI = 10V, IL = -50mA 125 µVRMS 7 ΔVO / ΔVI Line Transient Response VI = 10V, VPulse = 3V, IL = -5mA (Note 5) 45 mV 7 ΔVO / ΔIL Load Transient Response VI = 10V, IL = -50mA, ΔIL = -200mA (Note 7) 400 mV 7 ΔVI / ΔVO Ripple Rejection VI = 10V, IL = -125mA, eI = 1VRMS at ƒ = 2400Hz 60 dB 4 DC Drift Parameters Delta calculations performed on JAN S devices at group B, Subgroup 5, only. Symbol Parameter Conditions Notes Min Max Unit Sub- groups VO Output Voltage VI = 7V, IL = -5mA -0.02

0.025 V 1

VI = 25V, IL = -5mA -0.02 VI = 25V, IL = -100mA -0.02 VRLine Line Regulation 7V ≤ VI ≤ 25V, IL = -5mA -10 10 mV 1 www.national.com 4

Symbol Parameter Conditions Notes Min Max Unit Sub- groups VRLoad Load Regulation VI = 10V, -0.5A ≤ IL ≤ -5mA -10 10 mV 1 ISCD VI = 7V, IL = -5mA -1.0 1.0 mA 1 VI = 25V, IL = -5mA -1.0 1.0 mA 1 5 www.national.com

Symbol Parameter Conditions Notes Min Max Unit Sub- groups VO Output Voltage VI = 7V, IL = -5mA 4.7 5.4 V 1, 2, 3 VI = 7V, IL = -1.5A (Note 3) 4.7 5.4 V 1, 2, 3 VI = 18V, IL = -1.5A 4.7 5.4 V 1, 2, 3 VI = 25V, IL = -5mA 4.7 5.4 V 1, 2, 3 VI = 25V, IL = -1A 4.7 5.4 V 1, 2, 3 VRLine Line Regulation 7V ≤ VI ≤ 25V, IL = -5mA -50 50 mV 1 -100 100 mV 2, 3 VRLoad Load Regulation VI = 10V, -1.5A ≤ IL ≤ -5mA -100 100 mV 1, 2, 3 ISCD Standby Current Drain 7V ≤ VI ≤ 25V, IL = -5mA -10 0.5 mA 1, 2, 3 ΔISCD (Line) Standby Current Drain vs Line Voltage 7V ≤ VI ≤ 25V, IL = -5mA -0.5 0.5 mA 1, 2, 3 ΔISCD (Load) Standby Current Drain vs Load Current IOS Output Short Circuit Current VI = 35V -2.8 0.01 A 1, 2, 3 VStart Minimum Start Up Input Voltage RL = 5Ω ±5% (Note 8) 9.0 V 1, 2, 3 ΔVO / ΔT Average Temperature Coefficient of Output Voltage VI = 7V, IL = -5mA (Note 4) -2.0 2.0 mV/°C 8A, 8B AC Parameters Symbol Parameter Conditions Notes Min Max Unit Sub- groups NO Output Noise Voltage VI = 10V, IL = -100mA 125 µVRMS 7 ΔVO / ΔVI Line Transient Response VI = 10V, VPulse = 3V, IL = -5mA (Note 5) 45 mV 7 ΔVO / ΔIL Load Transient Response VI = 10V, IL = -100mA, ΔIL = -400mA (Note 6) 800 mV 7 ΔVI / ΔVO Ripple Rejection VI = 10V, IL = -350mA, eI = 1VRMS at ƒ = 2400Hz 60 dB 4 DC Drift Parameters Delta calculations performed on JAN S devices at group B, Subgroup 5, only. Symbol Parameter Conditions Notes Min Max Unit Sub- groups VO Output Voltage VI = 7V, IL = -5mA -0.02 VI = 25V, IL = -5mA -0.02 VI = 25V, IL = -1A -0.02 VRLine Line Regulation 7V ≤ VI ≤ 25V, IL = -5mA -10 10 mV 1 www.national.com 6

Symbol Parameter Conditions Notes Min Max Unit Sub- groups VRLoad Load Regulation VI = 10V, -1.5A ≤ IL ≤ -5mA -10 10 mV 1 ISCD Standby Current Drain 7V ≤ VI ≤ 25V, IL = -5mA -1.0 1.0 mA 1 7 www.national.com

Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics. The guaranteed specifications apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under the listed test conditions. Note 2: This test is performed by shifting the input voltage in 50mV increments until output reaches 4.706V. Note 3: VI = 8V at −55°C. Note 4: Calculated parameter. Note 5: Slash Sheet limit of 15 mV/V is equivalent to 45mV Note 6: Slash Sheet limit of 2mV/mA is equivalent to 800mV Note 7: Slash Sheet limit of 2mV/mA is equivalent to 400mV Note 8: Parameter tested go-no-go, only. Note 9: Human body model, 1.5kΩ in series with 100PF. Application Hints 1. Bypass the input of the LM109 to ground with ≥ 0.2 μF ceramic or solid tantalum capacitor if main filter capacitor is more than 4 inches away. 2. Avoid insertion of regulator into “live” socket if input voltage is greater than 10V. The output will rise to within 2V of the unregulated input if the ground pin does not make contact, possibly damaging the load. The LM109 may also be damaged if a large output capacitor is charged up, then discharged through the internal clamp zener when the ground pin makes contact. 3. The output clamp zener is designed to absorb transients only. It will not clamp the output effectively if a failure occurs in the internal power transistor structure. Zener dynamic impedance is ≈ 4Ω. Continuous RMS current into the zener should not exceed 0.5A. 4. Paralleling of LM109s for higher output current is not recommended. Current sharing will be almost nonexistent, leading to a current limit mode operation for devices with the highest initial output voltage. The current limit devices may also heat up to the thermal shutdown point (≈ 175°C). Long term reliability cannot be guaranteed under these conditions. 5. Preventing latchoff for loads connected to negative voltage: If the output of the LM109 is pulled negative by a high current supply so that the output pin is more than 0.5V negative with respect to the ground pin, the LM109 can latch off. This can be prevented by clamping the ground pin to the output pin with a germanium or Schottky diode as shown. A silicon diode (1N4001) at the output is also needed to keep the positive output from being pulled too far negative. The 10 Ω resistor will raise +VOUT by ≈ 0.05V. 20154907 Crowbar Overvoltage Protection Input Crowbar 20154908 Output Crowbar 20154909 *Zener is internal to LM109. **Q1 must be able to withstand 7A continuous current if fusing is not used at regulator input. LM109 bond wires will fuse at currents above 7A. †Q2 is selected for surge capability. Consideration must be given to filter capacitor size, transformer impedance, and fuse blowing time. ††Trip point is ≈ 7.5V. www.national.com 8

Typical Performance Characteristics Maximum Average Power Dissipation (LM109K) 20154916 Output Impedance 20154918 Maximum Average Power Dissipation (LM109H) 20154919 Ripple Rejection 20154921 Current Limit Characteristics (Note 10) 20154922 Thermally Induced Output Voltage Variation 20154923 9 www.national.com

Note 10: Current limiting foldback characteristics are determined by input output differential, not by output voltage. Input-Output Differential (V) 20154925 Output Voltage (V) 20154926 Output Voltage (V) 20154927 Quiescent Current 20154928 www.national.com 10

*Required if regulator is located more than 4″ from power supply filter ca- pacitor. †Although no output capacitor is needed for stability, it does improve tran- sient response. C2 should be used whenever long wires are used to connect to the load, or when transient response is critical. Note: Pin 3 electrically connected to case. Adjustable Output Regulator 20154904 11 www.national.com

High Stability Regulator* 20154905 *Regulation better than 0.01%, load, line and temperature, can be obtained. †Determines zener current. May be adjusted to minimize thermal drift. ‡Solid tantalum. Current Regulator 20154906 *Determines output current. If wirewound resistor is used, bypass with 0.1 μF. www.national.com 12

Revision History

Date Released Revision Section Changes 11/08/05 A New release to corporate format 2 MDS datasheets converted into one datasheet in the corporate format. MJLM109-K Rev 0BL & MJLM109-H Rev 0AL will be archived. 9/24/10 B End Of Life on Product/NSID Revision B, End of Life on Product/NSID Dec. 2008/09 Obsolete Data Sheet 13 www.national.com

Physical Dimensions inches (millimeters) unless otherwise noted Metal Can Package (H) Metal Can Package (K) www.national.com 14

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