SN6507-Q1中文资料德州仪器数据手册PDF规格书

1 Features

• Functional Safety-Capable

– Documentation available to aid functional safety

system design: SN6507-Q1

• AEC-Q100 (Grade 1) qualified for automotive

applications

• Create a custom design using the SN6507-Q1 with

the WEBENCH® Power Designer

• Push-pull driver for isolation transformers

• Wide input voltage range: 3 V to 36 V

– Input voltage tolerance up to 60 V

– Duty-cycle control for line regulation

• 0.5-A switches with programmable current limit

• Wide switching frequency range: 100 kHz to 2

MHz

– Compatible with small-footprint transformers

– Programmable switching frequency

– External clock synchronization option

• Low noise and emissions

– Symmetric push-pull topology

– Spread sprectrum clocking

– Pin-configurable slew-rate control

• Protection Features

– Adjustable under voltage lockout (UVLO)

– Programmable over-current protection (OCP)

– Over voltage lockout (OVLO)

– Thermal shutdown (TSD)

• Wide temperature range: –55°C to 125°C

• Programmable soft-start to reduce in-rush current

• 10-Pin HVSSOP (DGQ) package with thermal pad

2 Applications

Isolated power supplies for:

• Battery management system (BMS)

• On-board charger

• DC/DC converter

• Inverter and motor control

3 Description

The SN6507-Q1 is a high voltage, high frequency

push-pull transformer driver providing isolated power

in a small solution size. The device comes with

the push-pull topology’s benefits of simplicity, low

EMI, and flux cancellation to prevent transformer

saturation. Further space savings are achieved

through duty-cycle control, which reduces component

count for wide-input ranges, and by selecting a

high switching frequency, reducing the size of the

transformer.

The device integrates a controller and two 0.5-A

NMOS power switches that switch out of phase. Its

input operating range is programmed with precision

undervoltage lockouts. The device is protected

from fault conditions by over-current protection

(OCP), adjustable under-voltage lockout (UVLO), over

voltage lockout (OVLO), thermal shutdown (TSD), and

break-before-make circuitry.

The programmable Soft Start (SS) minimizes inrush

currents and provides power supply sequencing for

critical power up requirements. Spread Spectrum

Clocking (SSC) and pin-configurable Slew Rate

Control (SRC) further reduces radiated and conducted

emissions for ultra-low EMI requirements.

The SN6507-Q1 is available in a 10-pin HVSSOP

DGQ package. The device operation is characterized

for a temperature range from –55°C to 125°C.