SI9166_04 VISHAY [Vishay Siliconix], SI9166_04 Datasheet
SI9166_04
Related parts for SI9166_04
SI9166_04 Summary of contents
Page 1
High Frequency Programmable Topology Controller FEATURES D Buck or Boost Configuration D Voltage Mode Control D 2.7-V to 6-V Input Voltage Range for V D Programmable PWM/PSM Control − 2-MHz Switching Frequency in PWM − Synchronous Rectification in ...
Page 2
Si9166 Vishay Siliconix ABSOLUTE MAXIMUM RATINGS Voltages Referenced to GND ...
Page 3
SPECIFICATIONS Parameter Symbol Oscillator Maximum Frequency F OSC Accuracy Maximum Duty Cycle—Buck D D MAX MAX Maximum Duty Cycle—Boost SYNC Range F /F SYNC SYNC Low Pulse Width SYNC High Pulse Width SYNC Error Amplifier ...
Page 4
Si9166 Vishay Siliconix TYPICAL CHARACTERISTICS (25_C UNLESS OTHERWISE NOTED) V vs. V REF DD 1.310 1.305 1.300 1.295 1.290 2.0 2.5 3.0 3.5 4.0 4.5 V − (V) DD Frequency vs. Temperature 2.00 1.95 1.90 R OSC 1.85 1.80 1.75 ...
Page 5
TYPICAL CHARACTERISTICS (25_C UNLESS OTHERWISE NOTED) PWM Supply Current 800 700 600 500 400 300 200 − (V) DD PIN CONFIGURATION TSSOP- N PWM/PSM 4 13 SYNC ...
Page 6
Si9166 Vishay Siliconix FUNCTIONAL BLOCK DIAGRAM 1.3 V Reference Threshold Generator V REF FB COMP SYNC Oscillator R OSC C OSC V O PWM/PSM MODE DETAIL OPERATIONAL DESCRIPTION Start-Up The UVLO circuit prevents the controller output driver and oscillator circuit ...
Page 7
PWM Mode With PWM/PSM mode pin in logic high condition, the Si9166 operates in constant frequency (PWM) mode. As the load and line varies, switching frequency remain constant. switching frequency is programmed by the R PWM mode, the synchronous drive ...
Page 8
Si9166 Vishay Siliconix Oscillator The oscillator is designed to operate up to 2-MHz minimal. The 2-MHz operating frequency allows the converter to minimize the inductor and capacitor size, improving the power density of the converter. Even with 2-MHz switching frequency, ...
Page 9
Specifications of the products displayed herein are subject to change without notice. Vishay Intertechnology, Inc., or anyone on its behalf, assumes no responsibility or liability for any errors or inaccuracies. Information contained herein is intended to provide a product description ...
Page 10
TSSOP: 16-LEAD Symbols θ1 ECN: S-61920-Rev. D, 23-Oct-06 DWG: 5624 Document Number: 74417 23-Oct-06 DIMENSIONS IN MILLIMETERS Min Nom - 1.10 0.05 0.10 - 1.00 0.22 0.28 - ...
Page 11
... Parameters provided in datasheets and/or specifications may vary in different applications and performance may vary over time. All operating parameters, including typical parameters, must be validated for each customer application by the customer’s technical experts. Product specifications do not expand or otherwise modify Vishay’ ...