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SI9168 数据表(PDF) 6 Page - Vishay Siliconix |
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SI9168 数据表(HTML) 6 Page - Vishay Siliconix |
6 / 10 page 16 15 14 13 1 2 3 4 12 11 10 9 5 6 7 8 MODE VS DL N/C PGND DH SD PWM/PSM VO SYNC VDD GND ROSC VREF COMP FB TSSOP-16 Top View Si9168BQ Si9168 Vishay Siliconix New Product www.siliconix.com S FaxBack 408-970-5600 6 Document Number: 70899 S-00022—Rev. A, 10-Jan--00 PIN CONFIGURATION ORDERING INFORMATION Part Number Temperature Range Package Si9168BQ-T1 –25 to 85 _C Tape and Reel Eval Kit Temperature Range Board Type Si9168DB –25 to 85 _C Surface Mount PIN DESCRIPTION Pin Number Name Function 1 MODE Determines the converter topology. Connect to AGND for buck or VDD for boost. 2 DL The gate drive output for the low-side n-channel MOSFET for buck and boost converter 3 PGND Power ground for output drive stage 4 SD Logic low shuts down the IC completely and decreases the current consumption of IC to <2 mA. 5 VO Direct output voltage sense 6 VDD Input supply voltage for the analog circuit. VDD voltage should be the ac filtered voltage of VSS. Input voltage range is 5 V to 10 V. 7 ROSC External resistor to determine the switching frequency. 8 COMP Error amplifier output for external compensation network. 9 FB Output voltage feedback connected to the inverting input of an error amplifier. 10 VREF 1.3-V reference voltage. Connected internally to non-inverting error amplifier input. Decouple with 0.1- mF ceramic capacitor. 11 GND Low power controller ground 12 SYNC Externally controlled synchronization signal. Logic high to low transition forces the clock synchronization. If not used, the pin must be connected to VDD, or logic high. 13 PWM/PSM Logic high = PWM mode, logic low = PSM mode. In PSM mode, synchronous rectification drive is disabled. 14 DH The gate drive output for the high-side p-channel MOSFET for buck and boost converter 15 N/C Not used. 16 VS Supply voltage for the output driver section. Voltage range is 5 V to 10 V (Buck), 5 to 12.6 V (Boost). |
类似零件编号 - SI9168 |
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类似说明 - SI9168 |
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