ZY1120G Datasheet, PDF (13/17 Pages) Power-One – ZY1120 20A No-Bus POL Data Sheet 3V to 14V Input  0.5V to 5.5V Output

ZY1120 20A No-Bus POL Data Sheet
3V to 14V Input  0.5V to 5.5V Output
7. Pin Assignments and Description
Pin
Name
Pin Pin Buffer
No. Type Type
Pin Description
Notes
Connect to an external voltage source higher
VLDO
1
P
IM
2
I
PU
Low Voltage Dropout
Interleave Mode
than 4.75V, if V_IN<4.75V. Connect to V_IN, if
V_IN≥4.75V
Tie to PGND for master or leave open to set
interleave by INTL0…INTL4 pins
TEMP
3
A
Temperature Measurement
Analog voltage proportional to junction
temperature of the controller
ENP
4
I
PU
Enable Logic Selection
Tie to PGND for Negative logic or leave open
for Positive logic
Connect a capacitor between the pin and
DELAY
5
A
Power-Up Delay
PGND to program the Power-Up delay. Leave
open for zero delay
CCA2
6
I
PU
Compensation Coefficient Address
Bit 2
Tie to PGND for 0 or leave open for 1
CCA1
7
I
PU
Compensation Coefficient Address
Bit 1
Tie to PGND for 0 or leave open for 1
CCA0
8
I
PU
Compensation Coefficient Address
Bit 0
Tie to PGND for 0 or leave open for 1
VREF
9
A
Voltage Reference
To program the output voltage, connect a
resistor between VREF and TRIM
EN
10
I
PU
Enable
Polarity is determined by ENP pin
OK
11
I/O
PU
Fault Status
Connect to OK pin of other Z-1000 POLs.
Leave open, if not used
SYNC
12
I/O
PU
Frequency Synchronization Line
Connect to SYNC pin of other Z-POLs and/or
to an external clock generator
PGOOD 13
I/O
PU
Power Good
TRIM
14
A
CS
15
I/O
PU
Output Voltage Trim
Current Share/Sense
To program the output voltage, connect a
resistor between VREF and TRIM
Connect to CS pin of other Z-POLs connected
in parallel
INTL4
16
I
PU
Interleave Bit 4
Tie to PGND for 0 or leave open for 1
INTL3
17
I
PU
Interleave Bit 3
Tie to PGND for 0 or leave open for 1
INTL2
18
I
PU
Interleave Bit 2
Tie to PGND for 0 or leave open for 1
INTL1
19
I
PU
Interleave Bit 1
Tie to PGND for 0 or leave open for 1
INTL0
20
I
PU
Interleave Bit 0
Tie to PGND for 0 or leave open for 1
-VS
21
I
PU
Negative Voltage Sense
Connect to the negative point close to the load
+VS
22
I
PU
Positive Voltage Sense
Connect to the positive point close to the load
VOUT
23
P
Output Voltage
PGND
24
P
Power Ground
VIN
25
P
Input Voltage
Legend: I=input, O=output, I/O=input/output, P=power, A=analog, PU=internal pull-up
ZD-00790 Rev. 1.6, 25-Jun-10
www.power-one.com
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