ZY8140 Power-One, ZY8140 Datasheet - Page 22

• Manufacturer Part Number: ZY8140
• Description: Zy8140 40a Dc-dc Intelligent Pol
• Manufacturer: Power-One

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 36 until the condition
causing the undervoltage is removed.
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 35. Turn-On into UVP on V3. The UV Fault Is
ZD-01977 REV. 1.0
Code
OC
PG
TR
OT
UV
OV
PT
Overtemperature
Programmed To Be Non-Latching. Ch1 – V3
(Group C), Ch2 – V2, Ch3 – V1 (Group A)
Undervoltage
Temperature
Power Good
Overvoltage
Overcurrent
Tracking
Warning
Name
Warning
Warning
Type
Fault
Fault
Fault
Fault
Error
Table 3. Summary of Protections Parameters and Features
When V
When V
Whenever V
Whenever V
www.power-one.com
During steady state
During steady state
During ramp up
The POL
When Active
OUT
OUT
exceeds prebias
exceeds prebias
IN
IN
is applied
is applied
8V to 14V Input
Figure 36. Turn-On into UVP on V3. The UV Fault Is
Summary of protections, their parameters and
features are shown in Table 3
ZY8140 40A DC-DC Intelligent POL
Regular
Regular
Turn
Fast
Fast
Fast
Off
No
No
Programmed To Be Non-Latching and Propagate
From Group C to Group A. Ch1 – V3 (Group C),
Ch2 – V2, Ch3 – V1 (Group A)
Low Side
Switch
N/A
N/A
Off
Off
Off
Off
On
•
0.5V to 3.65V Output
Regular turn off
Regular turn off
Regular turn off
Regular turn off
Sends signal to
Sends signal to
Propagation
Fast turn off
DPM
DPM
Page 22 of 30
Data Sheet
Disable
Yes
No
No
No
No
No
No