TDK manual Product Brief Veta iHA Series Half Brick, Veta iHA Series DC/DC Power Modules

Product Brief: Veta™ iHA Series – Half Brick

Features

∙Standard Half Brick footprint

∙High efficiency, typical 91%

∙Wide output trim voltage

∙True 11A product at 28V output

∙Industry-leading output power: 300W

∙Monotonic start-up

∙Starts with a pre-biased output

∙Basic insulation – 1500 Vdc

∙Auto-recovery protection:

o Input under and over voltage o Current limit

o Short circuit o Thermal limit

∙Latched output over voltage

∙Optional auto-recovery output over voltage

∙High reliability open frame, surface- mount construction

∙Baseplate for improved thermal management

∙Constant switching frequency

∙Optional 0.110” pin length

∙Safety agency approvals pending

∙Multiple patents pending

Veta™ iHA Series DC/DC Power Modules

48V Input, 28V/11A Output

Half Brick

Its 91% efficiency and superior thermal performance make the Veta™ Family of power modules ideally suited for power-hungry applications in demanding thermal environments. This rugged building block is designed to serve as the core of your high reliability system. A wide output voltage trim range, -46 to +10%, and remote sensing are standard features enhancing versatility. For a full-featured version of the Veta™ Half Brick, including active current sharing, see the iHD product brief.

Base Product Code	Input		Output	Output		Efficiency
	Voltage		Voltage	Current
iHA48011A280V	36-75V		28V	11A		91%
Typical Performance
Input Characteristics
Operating input range		36-75V
Transient input voltage		100V		100mS max
Turn-on voltage			34V
Turn-off voltage			32V
Start-up time		80 mS		On/Off to 90% Vout
Maximum input current		10.2A		Input 0-75V, Io,max
Output Characteristics
Output voltage tolerance		+/- 3% max		Over line, load, and temp
				to end of life
Efficiency	see product table
Line regulation		10 mV		Over rated input
Load regulation		25 mV		Over rated load
Output voltage adjustment	54%-110%			%Vout,nom
Output ripple		250 mVp-p		20MHz bandwidth
Dynamic response				Load step 25% of Io,max
Transient voltage		600 mV		slew rate =0.1A/us
Recovery time		350 uS
Ripple frequency		300 kHz			Fixed
Protection
Current limit inception		130% of Io,rated
Short circuit	Continuous protection			Auto-recovery (AR) hiccup
Output over voltage	120% of Vout,nom			Latch (AR-optional)
Thermal shutdown		120C		Auto recovery hiccup
Environmental
Operating temperature		-40C	to 120C	Measurement point in full
				datasheet

©2002 Innoveta Technologies™, Inc.	' (877) 498-0099
iHA48011A280V product brief 090302.doc 9/4/2002	1/2