SC1405DITSTRT Semtech, SC1405DITSTRT Datasheet
SC1405DITSTRT
Specifications of SC1405DITSTRT
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SC1405DITSTRT Summary of contents
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... Less than 10µA stand-by current (EN=low) Power ready output signal High frequency (to 1.2MHz) operation allows use of small inductors and low cost caps in place of electrolytics TSSOP-14 package Applications High Density/Fast transient microprocessor power supplies Motor Drives/Class-D amps High efficiency portable computers 1 SC1405D PRELIMINARY www.semtech.com ...
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... 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 NOTE: (1) Specification refers to application circuit. Electrical Characteristics - DC Operating Specifications Unless otherwise specified: -40 < T < 125° 2005 Semtech Corp < ° ° 6V; 4V < V < 26V CC BST < µ SC1405D ° ° ...
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... POWER MANAGEMENT Electrical Characteristics - DC Operating Specifications 2005 Semtech Corp < < ° < < ° SC1405D µ µ www.semtech.com ...
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... POWER MANAGEMENT Electrical Characteristics - AC Operating Specifications NOTE: (1) This device is ESD sensitive. Use of standard ESD handling precautions is required. 2005 Semtech Corp < > > > > < < SC1405D www.semtech.com µ s µ s µ s µ ...
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... POWER MANAGEMENT Application Circuit - TSSOP-14 INPUT POWER +5V + 10uF,6.3V .1uF P_READY << PWM IN >> (20KHz-1MHz) 47pF DSPS_DR << <<< Output Feedback to PWM Controller Timing Diagram 2005 Semtech Corp 1N5819 .22uF 8 14 Vcc BST 3 GND PRDY 2 DRN DELAY OVP_S 11 2.2 DSPS_DR 5 10 S_MOD ...
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... NOTE: NOTE: NOTE: NOTE: NOTE: (1) All logic level inputs and outputs are open collector TTL compatible. 2005 Semtech Corp. Ordering Information Notes: (1) Only available in tape and reel packaging. A reel contains 2500 devices. (2) Lead free product. This product is fully WEEE and RoHS compliant. ...
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... The timing diagram demonstrates the sequence of events by which the top and bottom drive signals are applied. The shoot-through protection is implemented 2005 Semtech Corp. by holding the bottom FET off until the voltage at the phase node (intersection of top FET source, the output inductor and the bottom FET’s drain) has dropped below 1V ...
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... Vspike. The selection of the bottom FET must be done with at- tention paid to the Crss/Ciss ratio. A low ratio reduces 2005 Semtech Corp. the Miller feedback and thus reduces Vspike. Also FETs with higher Turn-on threshold voltages will conduct at a higher voltage and will not turn on during the spike. The ...
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... FET’s body diode will need to conduct in asynchronous mode. The high voltage drop of this diode must be con- sidered when determining the criteria for this mode of operation. 2005 Semtech Corp. DSPS DR This pin produces an output which is a logical duplicate of the bottom FET’s gate drive, if S-MOD is held High. ...
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... Typical Characteristics Performance diagrams, Application Evaluation Board. PIN Descriptions PIN Descriptions V = 12V 1.6V. Top FET = IR7811 FDB7030(BL) Qgd = 23nc IN OUT 2005 Semtech Corp. Timing diagram: Ch1: CO input Ch2: TG drive Ch3: BG non-overlap drive Ch4: phase node Iout = 20A (10A/phase) Refer to Eval. Schematic (fig.3) ...
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... POWER MANAGEMENT Typical Characteristics (Cont.) 600.00 500.00 400.00 300.00 200.00 100.00 0.00 -25 Typical Delay vs. Overdrive (T=25C) 10000 1000 100 10 2005 Semtech Corp. SC1405D OVP Delay vs. Temperature - Temperature (C) 50mV Overdrive 100mV Overdrive Overdrive (mV) 11 SC1405D 75 95 115 135 1000 www.semtech.com ...
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... POWER MANAGEMENT Evaluation Board Schematic 2005 Semtech Corp SC1405D www.semtech.com ...
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... N/2 TIPS B aaa C SEATING PLANE C SIDE VIEW NOTES: 1. CONTROLLING DIMENSIONS ARE IN MILLIMETERS (ANGLES IN DEGREES). 2. DATUMS -A- AND DIMENSIONS "E1" AND "D" DO NOT INCLUDE MOLD FLASH, PROTRUSIONS 3. OR GATE BURRS. 4. REFERENCE JEDEC STD MO-153, VARIATION AB-1. 2005 Semtech Corp. D DIM aaa bbb ...
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... POWER MANAGEMENT Land Pattern - TSSOP-14 X (C) P NOTES: 1. THIS LAND PATTERN IS FOR REFERENCE PURPOSES ONLY. CONSULT YOUR MANUFACTURING GROUP TO ENSURE YOUR COMPANY'S MANUFACTURING GUIDELINES ARE MET. Contact Information Phone: (805)498-2111 FAX (805)498-3804 2005 Semtech Corp. DIM INCHES (.222 Semtech Corporation Power Management Products Division ...