DS8817A Datasheet, PDF (10/21 Pages) Richtek Technology Corporation – Dual-Phase PWM Controller with PWM-VID Reference

RT8817A
VPVCC
(5V/Div)
VOUT
(1V/Div)
UGATE1
(20V/Div)
UGATE2
(20V/Div)
Power On from PVCC
VIN = 12V, VPVCC = 5V, IOUT = 40A
Time (1ms/Div)
VPVCC
(5V/Div)
VOUT
(1V/Div)
UGATE1
(20V/Div)
UGATE2
(20V/Div)
Power Off from VCC
PVCC
VOUT
VIN = 12V, VPVCC = 5V, IOUT = 40A
Time (20ms/Div)
VREFIN
(600mV/Div)
VOUT
(600mV/Div)
UGATE1
(20V/Div)
Dynamic Output Voltage Control
VREFIN
VOUT
UGATE2
(20V/Div) _{VREFIN = 0.6V to 1.2V, IOUT = 40A}
Time (50μs/Div)
Dynamic Output Voltage Control
VREFIN
VOUT
VREFIN
(600mV/Div)
VOUT
(600mV/Div)
UGATE1
(20V/Div)
UGATE2
(20V/Div) _{VREFIN = 1.2V to 0.6V, IOUT = 40A}
Time (50μs/Div)
VOUT
(40mV/Div)
Load Transient Response
VOUT
(40mV/Div)
Load Transient Response
IOUT
(20A/Div)
UGATE1
(20V/Div)
UGATE2
(20V/Div)
VIN = 12V, VOUT = 1V
IOUT
(20A/Div)
UGATE1
(20V/Div)
UGATE2
(20V/Div)
VIN = 12V, VOUT = 1V
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DS8817A-00 September 2016