Datasheet > SS9175CS-6TR

SS9175CS-6TR

更新时间： 2024-01-07 01:54:12

品牌	Logo	应用领域
SSC		控制器
页数	文件大小	规格书
12页	197K
描述
Dual Synchronous DC/DC Controllers With Current Sharing Circuitry

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SS9175CS-6TR 数据手册

SS9175/6

Dual Synchronous DC/DC Controllers With Current Sharing Circuitry

FEATURES

DESCRIPTION

Two sets of integrated MOSFET drivers

Fixed operating frequency of 300, 600 or 1000kHz

Dual-phase current-sharing controller to minimize

ripple and improve transient response

Wide input supply range: 4.5V to 16V

Programmable output as low as 0.8v

Internal error amplifier reference voltage of

0.7V +/- 1%

Programmable over-current protection (OCP) with

50% fold-back

Over-voltage protection (OVP)

Soft-start

Remote ON/OFF control

High voltage pin up to 30V for bootstrap voltage

Power-good output signal provided

Current-sharing balance within +/-5% matching

(SS9175CS/SS9176CS)

Two independent PWM controllers (SS9175)

Packaged in SO-20 (9175/CS) or SO-16 (9176CS)

The SS9175/6 series are dual-phase synchronous

DC/DC PWM controllers for power supplies

requiring a single high-current output, or two

independent outputs with high conversion efficiency.

They integrate two sets of internal MOSFET drivers

consisting of high-side and low side driving circuits.

The internal temperature-independent reference

voltage is trimmed to 0.7V +/- 1%, and is connected to

the error amplifier’s positive terminal for voltage

feedback regulation. The over-current protection

(OCP) level, with 50% fold-back, can be programmed

by an external resistor. The over-voltage protection

(OVP) point is fixed at 25% higher above 0.7V. The

soft-start circuit ensures the duty cycle of the PWM

output can be gradually and smoothly increased from

zero to its desired value. The controllers can be

remotely turned ON or OFF to enter into either active

or standby mode, respectively. The SS9175/6

series provides three different options:

The SS9175 is a 20-pin version that is designed for

two independent outputs without current sharing

capability.

APPLICATIONS

CPU and DSP Vcore Power Supply

Graphic cards

Telecomm and datacomm POL boards

Power supplies requiring two independent outputs

The SS9175CS is a 20-pin version designed for

current sharing applications.

The SS9176CS is a 16-pin version for current

sharing applications.

TYPICAL APPLICATION CIRCUIT

PWRG

1.4v

12V

GND

IN2

PWRG

IN1

COM

VCC

CL1+

CL1-

BST1

DH1

2.2pF

COM

1uF

SS/ENB

CL2+

CL2-

BST2

DH2

DL2

BSTC

DL1

PGND

7.5uH

50k

10uF

450uF

0.22uF

Rev.2.02 12/29/2003 PRELIMINARY

www.SiliconStandard.com

1 of 12

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与SS9175CS-6TR相关器件

型号	品牌	获取价格	描述	数据表
SS9176	SSC	获取价格	Dual Synchronous DC/DC Controllers With Current Sharing Circuitry
SS9176CS-10	SSC	获取价格	Dual Synchronous DC/DC Controllers With Current Sharing Circuitry
SS9176CS-10TR	SSC	获取价格	Dual Synchronous DC/DC Controllers With Current Sharing Circuitry
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SS9176CS-3TR	SSC	获取价格	Dual Synchronous DC/DC Controllers With Current Sharing Circuitry
SS9176CS-6	SSC	获取价格	Dual Synchronous DC/DC Controllers With Current Sharing Circuitry
SS9176CS-6TR	SSC	获取价格	Dual Synchronous DC/DC Controllers With Current Sharing Circuitry
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