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SI9166BQ-T1 Datasheet(PDF) 5 Page - Vishay Siliconix |
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SI9166BQ-T1 Datasheet(HTML) 5 Page - Vishay Siliconix |
5 / 11 page 16 15 14 13 1 2 3 4 12 11 10 9 5 6 7 8 VS MODE N/C SD DH DL PWM/PSM PGND SYNC VO GND VDD VREF ROSC FB COMP TSSOP-16 Top View Si9166 Vishay Siliconix Document Number: 70847 S-40701—Rev. C, 19-Apr-04 www.vishay.com 5 TYPICAL CHARACTERISTICS (25_C UNLESS OTHERWISE NOTED) 50 100 150 200 250 2 3456 7 200 300 400 500 600 700 800 2 3456 7 PWM Supply Current PSM Supply Current VDD − (V) VDD − (V) PIN CONFIGURATION ORDERING INFORMATION Part Number Temperature Range Package Si9166BQ-T1 25 to 85_C Tape and Reel Si9166BQ-T1—E3 −25 to 85_C Tape and Reel Eval Kit Temperature Range Board Type Si9166DB −25 to 85_C Surface Mount PIN DESCRIPTION Pin Symbol Description 1 VS Input supply voltage for the output driver section. Input voltage range is 2.7 V to 6V 2 N/C Not Used 3 DH The gate drive output for the high-side p-channel MOSFET. The p-channel MOSFET is the main switch for buck topology and the synchronous rectifier for the boost topology. 4 PWM/PSM Logic high = PWM mode, logic low = PSM mode. In PSM mode, synchronous rectification is disabled. 5 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. 6 GND Low power controller ground 7 VREF 1.3-V reference. Decoupled with 0.1-mF capacitor 8 FB Output voltage feedback connected to the inverting input of an error amplifier. 9 COMP Error amplifier output for external compensation network. 10 ROSC External resistor to determine the switching frequency. 11 VDD Input supply voltage for the analog circuit. Input voltage range is 2.7 V to 6 V. 12 VO Direct output voltage sense 13 PGND Power ground for output drive stage 14 DL The gate drive output for the low-side n-channel MOSFET. The n-channel MOSFET is the synchronous rectifier for the buck topology and the main switch for the boost topology. 15 SD Shuts down the IC completely and decreases current consumed by the IC to < 1 mA. 16 MODE Determines the converter topology. Connect to AGND for Buck or VDD for Boost. |
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