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TPS92315
www.ti.com SNVS904A – NOVEMBER 2012 – REVISED FEBRUARY 2013 Off-Line Primary-Side Sensing Controller
Check for Samples: TPS92315 FEATURES DESCRIPTION The TPS92315 flyback power supply controller
provides isolated output current regulation without the
use of an optical coupler. The devices process
operating information from the primary power switch
and an auxiliary flyback winding to provide precise
output current control. Low start-up current,
dynamically controlled operating states and a tailored
modulation profile support very low stand-by power
without sacrificing start-up time or output transient
response. 1 Primary-Side Regulation (PSR) eliminates
opto-coupler
В±5% LED current regulation
130 kHz maximum switching frequency
enables high power density SSL drivers
designs
Quasi-resonant valley switching operation for
highest overall efficiency
Patent-pending frequency jitter scheme to
ease EMI compliance
Wide VCC range (35V) allows small bias
capacitor …
