PTQB425080N2AD.B中文资料德州仪器数据手册PDF规格书

1FEATURES

• 200-W Output

• Input Voltage Range: 36 V to 75 V

• Meets 100 V, 100 ms Input Transient

• 6:1 Input-to-Output DC Conversion Ratio:

36 V to 55 V Input

• 10.5 V Output Voltage Limit: > 55 V Input

• 93% Efficiency

• 1500 VDC Isolation

• On/Off Control

• Overcurrent Protection

• Over-Temperature Shutdown

• Undervoltage Lockout

• SmartSync External Clock Drive (Optional)

• AutoTrack™ Power-Up Sequencing (Optional)

• Standard 1/4-Brick Bus Converter Footprint

• UL Safety Agency Approval

DESCRIPTION

The PTQB425080 power module is single-output isolated DC/DC converter, housed in an industry

standard quarter-brick package. The module is

nominally rated up to 200 W with a maximum load

current of 25 A. It delivers an output voltage of 1/6th

the input voltage for an input voltage range of 36 V to 55 V, while limiting the output voltage to 10.5 V for an

input voltage greater than 55 V.

The PTQB425080 operates from a standard 48-V

telecom central office (CO) supply and occupies only

3.3 in2 of PCB area. The module offers OEMs a

compact and flexible high-output power source in an industry standard footprint. It is suitable for distributed

power applications in both telecom and computing

environments that utilize an intermediate bus

architecture (IBA), and may be used for powering downstream point-of-load (POL) devices such as the

second generation PTH series of products (T2).

Features include a remote On/Off control with

optional logic polarity, and an undervoltage lockout

(UVLO). Protection features include output overcurrent

protection (OCP) and over-temperature

protection (OTP). To compliment T2-POL products,

optional features include a SmartSync compatible

clock drive and a AutoTrack™ power-up sequencing

manager

The module is fully integrated for stand-alone

operation, and require no additional components.