Datasheet > Gate> RT9612B

RT9612B

更新时间： 2024-01-25 09:23:07

品牌	Logo	应用领域
立锜 - RICHTEK		驱动器栅
页数	文件大小	规格书
15页	213K
描述
Synchronous-Rectified Buck MOSFET Driver

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RT9612B 技术参数

Status：	Active	Number of Channels：	1
Vcc (typ) (V)：	12	UGATE Rise Time (typ) (ns)：	25
UGATE Fall Time (typ) (ns)：	12	LGATE Rise Time (typ) (ns)：	24
LGATE Fall Time (typ) (ns)：	10	UGATE Source Resistance (typ) (Ohm)：
UGATE Sink Resistance (typ) (Ohm)：	1.4	LGATE Source Resistance (typ) (Ohm)：
LGATE Sink Resistance (typ) (Ohm)：	1.1	Disable Pin：	No
Built-In Bootstrap Diode：	Yes	Iq (typ) (mA)：	1.2
Features：	Tri-State Input	Package Type：	SOP-8;WDFN3x3-8E
Datasheet：	https://datasheet5.oss-cn-shanghai.aliyuncs.com/datasheets/richtek/DS9612AB-03.pdf

RT9612B 数据手册

RT9612A/B

Synchronous-Rectified Buck MOSFET Driver

General Description

Features

ꢀ Drive Two N-MOSFETs

The RT9612A/B is a high frequency, synchronous rectified,

single phase dual MOSFET driver designed to adapt from

normal MOSFET driving applications to high performance

CPU VR driving capabilities.

ꢀ Adaptive Shoot Through Protection

ꢀ Embedded Bootstrap Diode

ꢀ Support High Switching Frequency

ꢀ Fast Output Rise Time

The RT9612A/B can be utilized under both V_CC= 5V or

V_CC= 12V applications. The RT9612A/B also builds in an

internal power switch to replace external boot strap diode.

The RT9612A/B can support switching frequency efficiently

up to 500kHz. The RT9612A/B has the UGATE driving

circuit and the LGATE driving circuit for synchronous

rectified DC/DC converter applications. The driving rise/

fall time capability is designed within 30ns and the shoot

through protection mechanism is designed to prevent shoot

through of high side and low side power MOSFETs. The

RT9612A/B has PWM tri-state shut down function which

can force driver output into high impedance.

ꢀ Tri-State Input for Bridge Shutdown

ꢀ Small SOP-8, SOP-8 (Exposed Pad) and 8-Lead

WDFN Packages

ꢀ RoHS Compliant and Halogen Free

Applications

ꢀ Core Voltage Supplies forDesktop, Motherboard CPU

ꢀ High Frequency Low ProfileDC/DC Converters

ꢀ High Current Low VoltageDC/DC Converters

Ordering Information

RT9612A/B

The difference of the RT9612A and the RT9612B is the

propagation delay, t_UGATEpdh. The RT9612B has

comparatively large t_UGATEpdhthan RT9612B. Hence, the

RT9612A is usually recommended to be utilized in

performance oriented applications, such as high power

density CPU VR orGPU VR. The RT9612A/B comes in a

small footprint with SOP-8, SOP-8 (Exposed Pad) and

WDFN-8EL 3x3.

Package Type

S : SOP-8

SP : SOP-8 (Exposed Pad-Option1)

QW : WDFN-8EL 3x3 (W-Type)

Lead Plating System

G : Green (Halogen Free and Pb Free)

Z : ECO (Ecological Element with

Halogen Free and Pb free)

Long Dead Time

Short Dead Time

Note :

Richtek products are :

` RoHS compliant and compatible with the current require-

ments of IPC/JEDEC J-STD-020.

` Suitable for use in SnPb or Pb-free soldering processes.

is a registered trademark of Richtek Technology Corporation.

DS9612A/B-03 June 2012

www.richtek.com

12 3 4 5 6 7...15

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