MIC2292 MICREL [Micrel Semiconductor], MIC2292 Datasheet
MIC2292
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MIC2292 Summary of contents
Page 1
... DC/DC solution that requires only four external components. The 2.5V to 10V input voltage range of MIC2292/3 allows direct operation from 1- and 2-cell Li Ion as well 4-cell NiCad/NiMH/Alkaline batteries. The MIC2292/3 products are available in a small size 2mm 2mm 8-lead MLF™ package and have a junction temperature range of – ...
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... MIC2292/93 Ordering Information Marking Part Number Code MIC2292-15BML SWA MIC2292-15YML SWA MIC2292-34BML SWC MIC2292-34YML SWC MIC2293-15BML SZA MIC2293-15YML SZA MIC2293-34BML SZC MIC2293-34YML SZC Pin Configuration Pin Description Pin Number Pin Name 1 OUT 2 VIN 4,8 GND EP GND M9999-081104 Overvoltage ...
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... 0V 10V EN SW TURN ON TURN OFF V = 10V EN MIC2292 MIC2293 I = 150mA 30V R MIC2292/93-15 MIC2292/93-34 Hysteresis , and the ambient temperature The maximum allowable power dissipation will result in excessive (2) ) ........................................ 2.5V to 10V IN ) ..................................... OUT IN ) ........... – +125 .............................................. 93 C +125 C. J Min ...
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... MIC2292/93 Typical Characteristics Feedback Voltage vs. Input Voltage 100 (V) IN Switch Frequency vs. Temperature 1.4 1.2 1 0.8 0.6 0.4 0.2 0 -40 - 100 TEMPERATURE ( C) Schottky Reverse Leakage Current 2 25V 1 16V R 0 10V 100 ...
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... PWM generator, 500mA bipolar output transistor, and Schottky rectifier diode. The oscillator generates a 1.6MHz clock for the MIC2292 and a 2.0MHz clock for the MIC2293. The clocks' two functions are to trigger the PWM generator that turns on the output transistor and to reset the slope compen- sation ramp generator ...
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... MIC2292/93 External Component Selection The MIC2292/93 can be used across a wide rage of applica- Series LEDs 6 6 6 6 6.8 H 4.7 H M9999-081104 tions. The table below shows recommended inductor and ...
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... If the LEDs are disconnected from the circuit case an LED fails open, the sense resistor will pull the FB pin to ground. This will cause the MIC2292/93 to switch with a high duty-cycle resulting in output overvoltage. This may cause the SW pin voltage to exceed its maximum voltage rating, possibly damaging the IC and the external components ...
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... MIC2292/93 6-Series LED Circuit with External Soft-Start TIME (100 s/div.) M9999-081104 6-Series LED Circuit without External Soft-Start 0.22 F OUT 20mA OUT 6 LEDs C = 2200pF 10k 8 Micrel 0.22 F OUT 20mA OUT 6 LEDs TIME (100 s/div.) ...
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... MIC2292/93 Package Information MICREL, INC. 1849 FORTUNE DRIVE SAN JOSE, CA 95131 USA + 1 (408) 944-0800 TEL The information furnished by Micrel in this data sheet is believed to be accurate and reliable. However, no responsibility is assumed by Micrel for its use. Micrel reserves the right to change circuitry and specifications at any time without notification to the customer. ...