PQ60120HZA50 Datasheet, PDF (12/13 Pages) SynQor Worldwide Headquarters – Half-brick DC/DC Converter

Technical Specification
Input: 35-75 V
Output: 12 V
Current: 50 A (600W)
Package: Half-brick
Application Circuits: Figure E below provides a typical circuit
diagram which details the input filtering and voltage trimming.
Input Filtering and External Input Capacitance: Figure F
below shows the internal input filter components. This filter dra-
matically reduces input terminal ripple current, which otherwise
could exceed the rating of an external electrolytic input capaci-
tor. The recommended external input capacitance is specified in
the Input Characteristics section on the Electrical Specifications
page. More detailed information is available in the application
note titled “EMI Characteristics” on the SynQor website.
Output Filtering and External Output Capacitance:
Figure F below shows the internal output filter components. This
filter dramatically reduces output voltage ripple. However, some
minimum external output capacitance is required, as specified in
the Output Characteristics section on the Electrical Specifications
page. No damage will occur without this capacitor connected,
but peak output voltage ripple will be much higher.
RoHS Compliance: The EU led RoHS (Restriction of Hazardous
Substances) Directive bans the use of Lead, Cadmium,
Hexavalent Chromium, Mercury, Polybrominated Biphenyls
(PBB), and Polybrominated Diphenyl Ether (PBDE) in Electrical
and Electronic Equipment. This SynQor product is available as
5/6 RoHS compliant (product with lead) or 6/6 RoHS compliant.
For more information please refer to SynQor’s RoHS addendum
available at our RoHS Compliance / Lead Free Initiative web
page or e-mail us at [e-mail].
Vin(+)
Vout(+)
Electrolytic
Capacitor
Vsense(+)
Vin
External
Input
220µF
ESR @0.2W
ON/OFF
Trim
R_trim-up
or
Filter
Vsense(^_)
R_trim-down C_load
I_load
Vin(^_)
Vout(^_)
Figure E: Typical application circuit (negative logic unit, permanently enabled).
Vin(+)
C₁
Vin(^_)
L_in
C₂
Regulation
Stage
Current
Sense
Isolation
Stage
Vout(+)
Vout(^_)
Figure F: Internal Input and Output Filter Diagram (component values listed on specifications page).
Product # PQ60120HZA50
Phone [phone]
www.synqor.com
Doc.# 005-2HZ612J Rev. A
8/20/07
Page 12