E-L4960 STMicroelectronics, E-L4960 Datasheet
E-L4960
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E-L4960 Summary of contents
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... POWER SWITCHING REGULATOR ORDERING NUMBERS: L4960 (Vertical) The L4960 is mounted in a Heptawatt plastic power package and requires very few external compo- nents. Efficient operation at switching frequencies up to 150KHz allows a reduction in the size and cost of external filter components. L4960 HEPTAWATT L4960H (Horizontal) 1/16 ...
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... L4960 PIN CONNECTION (Top view) ABSOLUTE MAXIMUM RATINGS Symbol V Input voltage Input to output voltage difference Negative output DC voltage 7 Negative output peak voltage 0 100KHz Voltage at pin 3 and Voltage at pin Pin 3 sink current 3 I Pin 5 source current 5 P Power dissipation at T tot Junction and storage temperature ...
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... THERMAL DATA Symbol R Thermal resistance junction-case th j-case R Thermal resistance junction-ambient th j-amb ELECTRICAL CHARACTERISTICS (Refer to the test circuit, T specified) Symbol Parameter DYNAMIC CHARACTERISTICS V Output voltage range o V Input voltage range i V Line regulation o V Load regulation o V Internal reference voltage ref (pin 2) ...
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... Low level output voltage 3L I Sink output current 3SI -I Source output current 3SO I Input bias current open loop gain v OSCILLATOR -I Oscillator source current 5 4/16 Test Conditions 100% duty cycle pins 5 and 7 open V = 46V i 0% duty cycle 0% duty cycle 100 5. 100 5. ...
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... If the overload condition is still present the limiter will trigger again when the threshold current is reached. The average short circuit current is limited to a safe value by the dead time introduced by the soft start network. The thermal overload circuit dis- ables circuit operation when the junction tempera- ...
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... C6, C7: EKR (ROE 150 (COGEMA 946042) CORE TYPE: MAGNETICS 58206-A2 MPP Figure 4. Quiescent drain current vs. supply voltage (0% duty cycle) 6/16 N TURNS 45, WIRE GAUGE: 0.8mm (20 AWG) Figure 5. Quiescent drain current vs. supply voltage (100% duty cycle) Figure 6. Quiescent drain current vs. junction tem- perature (0% duty cycle) ...
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... Figure 7. Quiescent drain current vs. junction tem- perature (100% duty cycle) Figure 10. Open loop fre- quency and phase responde of error amplifier Figure 13. Switching fre- quency vs. R2 (see test circuit) Figure 8. Reference voltage (pin 2) vs Figure 11. Switching fre- quency vs. input voltage Figure 14. Line transient ...
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... Figure 19. Power dissipation derating curve F igu re 22. Effi ciency vs. output current 8/16 Figure 17. Dropout voltage between pin 1 and pin 7 vs. current at pin 7 Fi gure 20. Effici ency vs. output current Fi gure 2 3. Effi ciency vs. output voltage Figure 18. Dropout voltage between pin 1 and 7 vs. ...
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... SUGGESTED INDUCTOR 150 CORE TYPE: MAGNETICS 58206 - A2 - MPP N TURNS: 45, WIRE GAUGE: 0.8mm (20 AWG), COGEMA 946042 U15/GUP15: N TURNS: 60, WIRE GAUGE: 0.8mm (20 AWG), AIR GAP: 1mm, Figure 25. P.C. board and component layout of the Fig scale) COGEMA 969051. Resistor values for standard output voltages ...
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... L4960 APPLICATION INFORMATION Figure 26. A minimal 5.1V fixed regulator; Very few component are required * COGEMA 946042 (TOROID CORE) 969051 (U15 CORE) ** EKR (ROE) Figure 27. Programmable power supply V = 5.1V to 15V 2.5A max o Load regulation (1A to 2A) = 10mV (V 10/16 = 5.1V) o ...
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... APPLICATION INFORMATION (continued) Figure 28. Microcomputer supply with + 5.1V, -5V, +12V and -12V outputs L4960 11/16 ...
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... L4960 APPLICATION INFORMATION (continued) Figure 29. DC-DC converter 5.1V/4A, 12V/2.5A; a suggestion how to synchronize a negative output L1 COGEMA 946042 (969051 COGEMA 946044 (946045 BYW80 Figure 30 multiple supplies several L4960s can be synchronized as shown 12/16 ...
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... Thanks to the Heptawatt package attaching the hetsink is very simple, a screw or a compression spring (clip) being sufficient. Between the heatsink Figure 32. Mounting example and the package it is better to insert a layer of silicon grease, to optimize the thermal contact, no electri- cal isolation is needed between the two surfaces. L4960 ...
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... OUTLINE AND MECHANICAL DATA Heptawatt HEPTAMEC V ...
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... L9 4.44 Dia 3.65 3.85 0.144 inch TYP. MAX. MECHANICAL DATA 0.189 0.054 0.110 0.053 0.022 0.031 0.035 0.100 0.105 0.200 0.205 0.300 0.307 0.409 0.409 0.559 0.173 0.622 0.201 0.118 0.622 0.260 0.175 0.152 L4960 OUTLINE AND Heptawatt H 15/16 ...
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