ZY7007 Datasheet, PDF (25/35 Pages) Power-One – 7A DC-DC Intelligent POL 3V to 14V Input - 0.5V to 5.5V Output

ZY7007 7A DC-DC Intelligent POL Data Sheet
3V to 14V Input • 0.5V to 5.5V Output
The POL powering the output V1 (Ch3 in the picture)
executes the regular turn-off. Since both V1 and V3
have the same delay and slew rate settings they will
continue to turn off and on synchronously every
130ms as shown in Figure 44 until the condition
causing the undervoltage is removed. The POL
powering the output V2 continues to ramp up until it
reaches its steady state level.
130ms is the interval from the instant of time when
the output voltage ramps down to zero until the
output voltage starts to ramp up again. Therefore,
the 130ms hiccup interval is guaranteed regardless
of the turn-off delay setting.
Figure 44. Turn-On into UVP on V3. The UV Fault Is
Programmed To Be Non-Latching and Propagate
From Group C to Group A. Ch1 – V3 (Group C),
Ch2 – V2, Ch3 – V1 (Group A)
Summary of protections, their parameters and
features are shown in Table 3
Figure 43. Turn-On into UVP on V3. The UV Fault Is
Programmed To Be Non-Latching. Ch1 – V3
(Group C), Ch2 – V2, Ch3 – V1 (Group A)
Code
PT
PG
TR
OT
OC
UV
OV
Name
Pretemperature
Warning
Power Good
Table 3. Summary of Protections Parameters and Features
Type
Warning
When Active
Whenever V_IN is applied
Turn
Off
No
Low Side
Switch
N/A
Warning
During steady state
No
N/A
Tracking
Fault
During ramp up
Fast
Off
Overtemperature Fault
Whenever V_IN is applied Regular
Off
Overcurrent
Fault When V_OUT exceeds prebias Fast
Off
Undervoltage
Fault
During steady state
Regular
Off
Overvoltage
Error When V_OUT exceeds prebias Fast
On
Propagation
Sends signal to
DPM
Sends signal to
DPM
Regular turn off
Regular turn off
Regular turn off
Regular turn off
Fast turn off
Disable
No
No
Yes
No
No
No
No
8.4 PWM Parameters
Z-Series POLs utilize the digital PWM controller.
The controller enables users to program most of the
PWM performance parameters, such as switching
frequency, interleave, duty cycle, and feedback loop
compensation.
8.4.1 Switching Frequency
The switching frequency can be programmed in the
GUI PWM Controller window shown in Figure 45 or
ZD-00245 REV. 2.5
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