RT8223N View Datasheet(PDF) - Richtek Technology

Part Name

Description

Manufacturer

RT8223N

High Efficiency, Main Power Supply Controller for Notebook Computer

Richtek Technology 

RT8223N

Power On from ENTRIP1

No Load

VOUT1

(2V/Div)

PGOOD

(5V/Div)

ENTRIP1

(5V/Div)

VIN = 12V, TONSEL = GND,

SKIPSEL = REF, EN = FLOATING,

VENTRIP1 = VENTRIP2 = 1.5V

Time (1ms/Div)

VOUT1

(2V/Div)

PGOOD

(5V/Div)

ENTRIP1

(5V/Div)

Power Off from ENTRIP1

No Load

VIN = 12V, TONSEL = GND,

SKIPSEL = REF, EN = FLOATING,

VENTRIP1 = VENTRIP2 = 1.5V

Time (2ms/Div)

Power On from ENTRIP2

No Load

VOUT2

(2V/Div)

PGOOD

(5V/Div)

ENTRIP2

(5V/Div)

VIN = 12V, TONSEL = GND,

SKIPSEL = REF, EN = FLOATING,

VENTRIP1 = VENTRIP2 = 1.5V

Time (1ms/Div)

VOUT2

(2V/Div)

PGOOD

(5V/Div)

ENTRIP2

(5V/Div)

Power Off from ENTRIP2

No Load

VIN = 12V, TONSEL = GND,

SKIPSEL = REF, EN = FLOATING,

VENTRIP1 = VENTRIP2 = 1.5V

Time (2ms/Div)

VOUT1 PWM Mode Load Transient Response

VOUT1_AC

(50mV/Div)

Inductor

Current

(5A/Div)

UGATE1

(20V/Div)

LGATE1

(5V/Div)

VIN = 12V, TONSEL = GND,

EN = FLOATING, SKIPSEL = REF, IOUT1 = 0A to 6A

Time (20μs/Div)

VOUT2 PWM Mode Load Transient Response

VOUT2_AC

(50mV/Div)

Inductor

Current

(5A/Div)

UGATE2

(20V/Div)

LGATE2

(5V/Div)

VIN = 12V, TONSEL = GND,

EN = FLOATING, SKIPSEL = REF, IOUT2 = 0A to 6A

Time (20μs/Div)

www.richtek.com

14

DS8223N-03 April 2011

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