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SGP100

System General
Part Number SGP100
Manufacturer System General
Description Primary-side-control PWM Controller
Published Jun 17, 2014
Detailed Description Product Specification Primary-side-control PWM Controller SGP 100 applications. The result is a low-cost, smaller and ...
Datasheet PDF File SGP100 PDF File

SGP100
SGP100

Overview
Product Specification Primary-side-control PWM Controller SGP 100 applications.
The result is a low-cost, smaller and lighter charger than a conventional design or a linear transformer.
To minimize t he s tandby po wer co nsumption, t he proprietary g reen-mode funct ion pr ovides o ff-time modulation t o linea rly d ecrease P WM f requency under light-load conditions.
Th is green-mode fun ction all ows the power s upply to meet p ower conservation requirements.
The s tart-up curr ent i s onl y 10µA, which allows large start-up resistance for further power saving.
A charger ca n be implemented w ith few ex ternal components a nd mi nimal c ost.
A t ypical output C V/CC characteristic envelope is shown in Figure 1.
Vo(V) FEATURES „ „ „ „ „ „ „ „ „ „ „ Constant-voltage (CV) and constant-current (CC) control without secondary-feedback circuitry Green-mode function: PWM frequency linearly decreasing Fixed PWM frequency at 42kHz with frequency hopping to solve EMI problems Low start-up c...


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