PQ60150EKXXX Datasheet, PDF (14/15 Pages) SynQor Worldwide Headquarters – Thermal shutdown protects converter from abnormal environmental conditions

Technical Specification
Input: 35-75V
Output: 15V
Current: 3.3A
Part No.: PQ60150EKx03
Figure F shows three turn-on scenarios, where a Startup Inhibit
Period is initiated at t₀, t₁, and t₂:
Before time t₀, when the input voltage is below the UVL threshold,
the unit is disabled by the Input Under-Voltage Lockout feature.
When the input voltage rises above the UVL threshold, the
Input Under-Voltage Lockout is released, and a Startup Inhibit
Period is initiated. At the end of this delay, the ON/OFF pin is
evaluated, and since it is active, the unit turns on.
At time t₁, the unit is disabled by the ON/OFF pin, and it cannot
be enabled again until the Startup Inhibit Period has elapsed.
When the ON/OFF pin goes high after t₂, the Startup Inhibit
Period has elapsed, and the output turns on within the typical
Turn-On Time.
V_in
Under-Voltage
Lockout
Turn-On
Threshold
ON/OFF
(pos logic)
ON
OFF ON
OFF
V_out
10ms
(typical start-up
inhibit period)
200ms
200ms
t₀
t₁
t₂
Figure F: Startup Inhibit Period (turn-on time not to scale)
ON
25 ms
(¹ty⁵p^mica^sl turn on time)
(typical turn on time)
t
Product # PQ60150EKx03
Phone [phone]
www.synqor.com
Doc.# 005-0005265 Rev. A
08/20/09
Page 14