SN6501

更新时间： 2024-11-14 11:44:27

品牌	Logo	应用领域
德州仪器 - TI		变压器电源变压器驱动器射频微波
页数	文件大小	规格书
26页	1176K
描述
Transformer Driver for Isolated Power Supplies

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SN6501 数据手册

SN6501

www.ti.com

SLLSEA0C –FEBRUARY 2012–REVISED MARCH 2012

Transformer Driver for Isolated Power Supplies

Check for Samples: SN6501

FEATURES

APPLICATIONS

•

Push-Pull Driver for Small Transformers

Single 3.3 V or 5 V Supply

•

Isolated Interface Power Supply for CAN, RS-

485, RS-422, RS-232, SPI, I2C, Low-Power LAN

•

Industrial Automation

Process Control

High Primary-side Current Drive:

–

5 V Supply: 350 mA (max)

3.3 V Supply: 150 mA (max)

Medical Equipment

•

Low Ripple on Rectified Output Permits Small

Output Capacitors

Small 5-pin SOT23 Package

DESCRIPTION

The SN6501 is a monolithic oscillator/power-driver, specifically designed for small form factor, isolated power

supplies in isolated interface applications. It drives a low-profile, center-tapped transformer primary from a 3.3 V

or 5 V DC power supply. The secondary can be wound to provide any isolated voltage based on transformer

turns ratio.

The SN6501 consists of an oscillator followed by a gate drive circuit that provides the complementary output

signals to drive the ground referenced N-channel power switches. The internal logic ensures break-before-make

action between the two switches.

The SN6501 is available in a small SOT23-5 package, and is specified for operation at temperatures from –40°C

to 125°C.

V_IN= 3.3V

10µF

SN6501

TPS76350

MBR0520L

V_OUT

1:2.2

V_OUT-REG= 5V

GND

OUT

GND

Vcc

10µF 0.1µF

10µF

GND

MBR0520L

Figure 1. Typical Operating Circuit

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

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