SC1104B Semtech Corporation, SC1104B Datasheet
SC1104B
Related parts for SC1104B
SC1104B Summary of contents
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... PHASE 4 DH BST Revision: November 22, 2006 Voltage Mode PWM Controller Features Up to +14V input, 300kHz operation (SC1104A +7V input, 600kHz operation (SC1104B) High efficiency (>90%) 1% Reference voltage accuracy Hiccup mode over current protection Robust output drive R DS(ON) Industrial temperature range 8-Lead SOIC package. Pb-free package available, ...
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POWER MANAGEMENT Absolute Maximum Ratings Exceeding the specifications below may result in permanent damage to the device, or device malfunction. Operation outside of the parameters specified in the Electrical Characteristics section is not implied. Exposure to Absolute Maximum rated conditions ...
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POWER MANAGEMENT Electrical Characteristics Unless specified ± 0.6V ± 1V BST ...
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POWER MANAGEMENT Electrical Characteristics Unless specified ± 0.6V ± 1V BST ...
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POWER MANAGEMENT Pin Configuration Top View (8-Pin SOI C) Pin Descriptions ...
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... Figure 1 shows a 3.3V output converter. If the Vout <3.3V, then the SENSE voltage < 1V. In this case the error amplifier will be sourcing current into the COMP pin so that COMP voltage and duty cycle will gradually increase. If Vout > ...
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POWER MANAGEMENT Theory of Operation (Cont.) When choosing OC trip point one should consider the Tempco of the MOSFETs Rds_on and SC1104’s Vtrip. Also, any ringing on the Vcc and Phase nodes due to parasitic L and C will have ...
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POWER MANAGEMENT Theory of Operation (Cont NET 2 Ra Value for the resistor R should be 1/10 of the output N divider upper resistor Example. Switching frequency f = 300kHz SW Output capacitance C = ...
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POWER MANAGEMENT Typical Characteristics Reference Voltage vs. Temp 0.5% 0.4% 0.3% 0.2% 0.1% 0.0% -0.1% -0.2% -0.3% -0.4% -0.5% -0.6% -0.7% -0.8% -0.9% -1.0% -40 - Temp, °C Trip Voltage vs. Temp 25% 20% 15% 10% 5% ...
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POWER MANAGEMENT Evaluation Board Schematic - V C1 1500p U1 SC1104AISTR COMP/SS SENSE 2 GND VCC 3 DL PHASE 4 DH BST 2.2 Evaluation Board Schematic - V C1 1500p U1 SC1104AISTR ...
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POWER MANAGEMENT Evaluation PC Board © 2006 Semtech Corp. Top View Top Layer Bottom Layer 11 SC1104A/B www.semtech.com ...
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POWER MANAGEMENT Typical Characteristics 100% 95% 90% 85% 80% 75% 70% 65% 60% 0 1.0% 0.8% 0.6% 0.4% 0.2% 0.0% -0.2% -0.4% -0.6% -0.8% -1.0% 0 © 2006 Semtech Corp Current ...
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POWER MANAGEMENT Typical Characteristics (Cont.) 100% 95% 90% 85% 80% 75% 70% 65% 60% 0 1.0% 0.8% 0.6% 0.4% 0.2% 0.0% -0.2% -0.4% -0.6% -0.8% -1.0% 0 © 2006 Semtech Corp Current ...
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... AND - DETERMINED AT DATUM PLANE -H- DIMENSIONS DIM INCHES (.205 .118 .050 X .024 Y .087 Y Z .291 P Semtech Corporation Power Management Products Division 200 Flynn Road, Camarillo, CA 93012 14 SC1104A/B DIMENSIONS INCHES MILLIMETERS MIN NOM MAX MIN NOM MAX - - .053 .069 1.35 1. .004 ...