Datasheet > VcoreCont> RT8167A

RT8167A

更新时间： 2024-01-25 19:54:46

品牌	Logo	应用领域
立锜 - RICHTEK		电压核心转换控制器
页数	文件大小	规格书
40页	659K
描述
Dual Single-Phase PWM Controller for CPU Core/GFX Power Supply

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技术参数
数据手册

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RT8167A 技术参数

Status：	Active	VID Table Support：	IMVP7;VR12
Number of Phases：	1;1	Vcc (typ) (V)：	5
Vin (min) (V)：	5	Vin (max) (V)：	25
Accuracy (Vout>=1V) (+/- %)：	0.5	Freq (typ) (kHz)：	300
Built-in DAC Generator：	Yes	Number of MOSFET Drivers：	1;1
Features：	Adjustable Current Limit;Adjustable Frequency;Built-in Bootstrap Switch;Current Mode Control;Cycle-by-Cycle Current Limit;DCR Current Sense;Diode Emulation Mode;Droop Control;Enable Input;G-NAVP Control;OVP;Power Good;SCP;UVP	Package Type：	WQFN5x5-40

RT8167A 数据手册

RT8167A

Pin Configurations

(TOP VIEW)

48 47 46 45 44 43 42 41 40 39 38 37

ISEN1P

ISEN1N

COMP

RGND

IMON

IMONFB

DRPEN

OFS

OFSA

GFXPS2

VCC

ISENAP

ISENAN

COMPA

FBA

RGNDA

IMONA

IMONFBA

VCLK

VDIO

ALERT

DRPENA

VRA_READY

GND

13 14 15 16 17 18 19 20 21 22 23 24

WQFN-48L 6x6

Functional Pin Description

Pin No.

Pin Name

Pin Function

ISEN1P

Positive Current Sense Input of CORE VR

Negative Current Sense Input of CORE VR

ISEN1N

COMP

CORE VR Compensation. This pin is the output node of the error amplifier.

CORE VR Feedback. This is the negative input node of the error amplifier.

Return Ground for CORE VR. This pin is the negative input for differential remote

voltage sensing.

RGND

Current Monitor Output of CORE VR. The output voltage V_IMONof this pin is

proportional to the output current. For digital output current reporting, detailed

V_IMONis generated by built-in ADC.

IMON

This pin is used to externally set the current monitor output gain of CORE VR.

Connect this pin with one resistor R_IMONFBto CORE VCC_SENSE while IMON pin

is connected to ground with another resistor, R_IMON. The current monitor output

gain can be set by the ratio of these two resistors.

IMONFB

Droop Enable Mode Setting of CORE VR. An internal 80μA current source is

connected to the DRPEN pin and flows out of this pin for 10μs. Connect this pin to

V_CCto enable droop function. Connect this pin to GND to disable droop function.

DRPEN

OFS

Output Voltage No-Load Offset Setting of CORE VR. Connect to a resistive voltage

divider from V_CCto GND to set the pin voltage V_OFSfor offset setting. Connect this

pin to GND for no offset setting.

Output Voltage No-Load Offset Setting of GFX VR. Connect to a resistive voltage

divider from V_CCto GND to set the pin voltage V_OFSAfor offset setting. Connect this

pin to GND for no offset setting.

OFSA

is a registered trademark of Richtek Technology Corporation.

DS8167A-00 January 2012

www.richtek.com

123 4 5 6 7...40

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