SI9119 VISHAY [Vishay Siliconix], SI9119 Datasheet
SI9119
Related parts for SI9119
SI9119 Summary of contents
Page 1
... V. Other features include a 1.5% accurate voltage reference, 2.7-MHz bandwidth error amplifier, standby mode, soft-start and undervoltage lockout circuits. The Si9118/Si9119 are available in a 16-pin SOIC package and is specified over the industrial, D suffix (– temperature range. I ...
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... OSC d d Initial Accuracy Initial Accuracy f OSC c Voltage Stability f/f c Temperature Coefficient OSC TC Sync High Pulse Width (Si9119) Sync Low Pulse Width (Si9119) Sync Rise/Fall Time (Si9119) Sync Logic Low (Si9119 Sync Logic High (Si9119 Sync Range (Si9119) f EXT PWM/PSM ...
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... Soft-Start Voltage to Disable Driver Output Room I = –10 mA OUT Full Room OUT Full Room mA, Source or Sink OUT Full Room 500 pF = 500 Room Si9118/Si9119 Vishay Siliconix Limits D Suffix – Min Typ Max Unit 1.0 200 1.8 2.7 MHz –1.0 –2 ...
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... Si9118/Si9119 Vishay Siliconix Oscillator Frequency 2 x 1000 47 pF 100 pF 150 pF 200 100 Note: These curves were measured in a board with 3 external parasitic capacitance 100 r – Oscillator Resistance (k ) OSC Supply Current vs. Output Frequency OSC ...
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... I LIMIT drive signal is terminated Current sense input to control feedback response. CS Si9118: slope compensation pin. Si9119: clock synchronization pin. Logic high to low transition from external signal 12 SYNC synchronizes the internal clock frequency Sets the maximum duty cycle. Internally, the maximum duty cycle is clamped to 80%. ...
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... COMP SS/EN I LIMIT –48 V (–42 to –56 V) FIGURE 2. Si9118 15-W Forward Converter Schematic +V IN PWM/PSM V REF NI FB COMP SS/EN I LIMIT –48 V (–42 to –56 V) FIGURE 3. Si9119 Forward Converter With External Slope Compensation www.Vishay Siliconix.com FaxBack 408-970-5600 6 New Product Si9420DY – MAX OSC ...
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... The external clock frequency must be at least 5% faster than the internal clock frequency. Reference Voltage The reference voltage for the Si9118/Si9119 are set at 4.0 V. The reference voltage is not connected to the non-inverting inputs of the error amplifier, therefore, the minimum output voltage is not limited to reference voltage. The V requires a 0 ...
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... RC circuit from the MOSFET driver output pin as shown on the application circuit. Over Current Protection Si9118/Si9119 are designed with a pulse-to-pulse peak current limiting protection circuit to protect itself, and the load voltage must be in case of a failure. The voltage across the sense resistor is monitored continuously and if the voltage reaches its trigger level, the duty cycle is terminated ...