SC1176-2EVB-2 SEMTECH [Semtech Corporation], SC1176-2EVB-2 Datasheet
SC1176-2EVB-2
Related parts for SC1176-2EVB-2
SC1176-2EVB-2 Summary of contents
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... V . The two switchers are 180° out of phase CC to minimize input and output ripple. The SC1176A has the phases of the Master and the Slave inverted. It offers a different pattern for ripple cancellation and prevents phase fold back during current limit. ...
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... POWER MANAGEMENT Typical Application Circuit 2 Channels with Current Sharing 2006 Semtech Corp. SC1176/SC1176A 2 www.semtech.com ...
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... SC1176/SC1176A ± ...
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... This device is ESD sensitive. Use of standard ESD handling precautions is required. (5) 200ns maximum at 75°. Marking Information (SOIC-20) 6 TOP yyww = Date Code (Example: 9908) xxxx = Semtech Lot # (Example: 90101) 2006 Semtech Corp. SC1176/SC1176A , 0mV < (CS(+) - (CS(-)) < 60mV , T = 25° ...
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... Needs RC filter for noise rejection. Pin 7, 14: (BST2, BST1) BST signal. Supply for high side driver. Can be connected to a high enough voltage source. Usually connected to bootstrap circuit. 2006 Semtech Corp. SC1176/SC1176A Ordering Information ...
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... For independent operation there is no Master or Slave. Applications Information - Theory of Operation Main Loop(s) The SC1176 is a dual, voltage mode synchronous Buck controller, the two separate channels are identi- cal and share only IC supply pins (Vcc and GND), output driver ground (PGND) and pre-driver supply voltage (BSTC) ...
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... A pull up resistor from the 5V bias (V the chip) will be used. For low duty cycle on the slave channel (below 50%), the pull up will be on pin 3. For high duty cycle on the slave channel (above 50%), the pull up will be on pin 2. 2006 Semtech Corp. SC1176/SC1176A The formula is ...
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... Figure 2: Figure and I OUT IN(5V) IN(12V) 2006 Semtech Corp. with V applied and 4A load. Soft start capacitor = 10nF. CC with V removed and 4A load. Soft start capacitor = 10nF SC1176/SC1176A Ch1: V OUT Ch2: I (1A/Div) IN(5V) Ch4: I (1A/Div) IN(12V 4.004 Amps OUT Ch1: V OUT Ch2: I (1A/Div) ...
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... Figure and I OUT IN(5V) IN(12V) 2006 Semtech Corp. with V applied and 12A load. Soft start capacitor = 10nF. CC with V removed and 12A load. Soft start capacitor = 10nF SC1176/SC1176A Ch1: V OUT Ch2: I (2A/Div) IN(5V) Ch4: I (2A/Div) IN(12V Amps OUT Ch1: V OUT Ch2: I ...
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... The Current Sharing Evaluation Board is not intended for a specific application. The power components are not optimized for minimum cost and size. This evaluation board should be used to understand the operation of the SC1176. To design with SC1176 for specific current sharing applications. Please refer to: Application note AN00-3. 2006 Semtech Corp. ...
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... POWER MANAGEMENT Evaluation Board Schematic - 2 Channel with Current Sharing 2006 Semtech Corp. SC1176 11 SC1176/SC1176A www.semtech.com ...
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... SC1176/SC1176A ...
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... POWER MANAGEMENT Evaluation Board Gerber Plots - 2 Channels with Current Sharing 2006 Semtech Corp. SC1176/SC1176A Top Side Traces Bottom Side Traces 13 www.semtech.com ...
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... POWER MANAGEMENT Typical Characteristics - 2 Independent Channels Output Current Input Voltage = 12V @ 5Amps. 2A/DIV. 2006 Semtech Corp. SC1176/SC1176A 14 www.semtech.com ...
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... Typical Characteristics - 2 Independent Channels (Cont.) Peak - Peak Output Ripple @ 5A Input Voltage = 12V. Output Voltage = 2.0V Phase Node 12V Input @ 5A Phase Node 12V Input @ 5A Phase Node 12V Input @ 5A (without snubber and RC network. Phase Node 12V Input @ 5A Phase Node 12V Input @ 5A 2006 Semtech Corp. SC1176/SC1176A 15 www.semtech.com ...
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... Start-up Power On Start-up Power On Start-up Power On Start-up Power On Start-up Power On Chan Output Current. 2A/DIV. Chan Bias Voltage Power Off Power Off Power Off Power Off Power Off Chan Output Current. 2A/DIV. Chan Bias Voltage 2006 Semtech Corp. SC1176/SC1176A 16 www.semtech.com ...
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... The Independent Channels Evaluation Board is not intended for a specific application. The power components are not optimized for minimum cost and size. This evaluation board should be used to understand the operation of the SC1176. To design with the SC1176 for specific independent channels applications. Please refer to: Application note AN00-4. ...
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... POWER MANAGEMENT Evaluation Board Schematic - 2 Independent Channels 2006 Semtech Corp. SC1176/SC1176A 18 www.semtech.com ...
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... SC1176/SC1176A ...
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... POWER MANAGEMENT Evaluation Board Gerber Plots - 2 Independent Channels 2006 Semtech Corp. SC1176/SC1176A Top Side Traces Bottom Side Traces 20 www.semtech.com ...
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... Power ground (PGND) 2006 Semtech Corp. SC1176/SC1176A should be returned to the bottom MOSFET source to pro- vide the best gate current return path. Analog ground (GND) should be returned to the ground side of the out- ...
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... bxN A1 bbb C A-B D GAGE PLANE 0.25 A SEE DETAIL SIDE VIEW TO BE DETERMINED AT DATUM PLANE -H- DIM SC1176/SC1176A DIMENSIONS INCHES MILLIMETERS MIN NOM MAX MIN NOM MAX - - .093 .104 2.35 2. .004 .012 0.10 0. .081 .100 2.05 2. .012 ...
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... SEE DETAIL SIDE VIEW - DETERMINED AT DATUM PLANE -H- DIMENSIONS DIM INCHES (.222 .161 .026 X .016 Y .061 Y Z .283 Semtech Corporation Power Management Products Division 200 Flynn Road, Camarillo, CA 93012 23 SC1176/SC1176A DIMENSIONS MILLIMETERS MIN NOM MAX - - - .047 1. .006 0.05 0.15 - .042 0. .012 0.19 0. ...