Part Number
|
IW1678 |
Manufacturer
|
iWatt |
Description
|
Low-Power Off-line Digital Green-Mode PWM Controller |
Published
|
Oct 31, 2016 |
Detailed Description
|
iW1678
Low-Power Off-line Digital Green-Mode PWM Controller
1.0 Features
2.0 Description
●● Primary-side feedback eli...
|
Datasheet
|
IW1678
|
Overview
iW1678
Low-Power Off-line Digital Green-Mode PWM Controller
1.
0 Features
2.
0 Description
●● Primary-side feedback eliminates opto-isolators and simplifies design
●● 64-kHz PWM switching frequency
●● No-load power consumption 100 mW at 230 Vac with tight dynamic load transient response
●● Able to meet 30 mW no-load power consumption with large value pre-load resistor
●● Adaptive multi-mode PWM/PFM control improves efficiency
●● Quasi-resonant operation for highest overall efficiency ●● EZ-EMI ® design to easily meet global EMI standards
●● Direct drive of low-cost BJT switch
●● Dynamic base current control
●● Very tight constant voltage and constant current regulation with primary-side...
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