ZY2110 10A No-Bus POL Data Sheet
8V to 14V Input ? 0.5V to 5.5V Output
7.
Pin Assignments and Description
Pin
Name
OK
SYNC
PGOOD
IM
CCA
MARGIN
EN
TRIM
VOUT
GND
VIN
Pin
Number
8
9
6
10
2
3
5
4
1
7
11
Pin
Type
I/O
I/O
I/O
I
I
A
I
A
P
P
P
Buffer
Type
PU
PU
PU
PU
PU
PU
Pin Description
Fault Status
Frequency Synchronization
Line
Power Good
Master Mode
Compensation Coefficient
Address
Output Voltage Margining
Enable
Output Voltage Trim
Output Voltage
Power Ground
Input Voltage
Notes
Connect to OK pin of other Z- POLs. Leave
open, if not used
Connect to SYNC pin of other Z-POLs or to an
external clock generator
Tie to GND to make the POL the clock master or
leave open to synchronize to external clock
Tie to PGND for 0 or leave open for 1
To program the output voltage, connect a
resistor between MARGIN and TRIM
POL is ON when the pin is high or floating. POL
is OFF when the pin is low or connected to GND
To program the output voltage, connect a
resistor between MARGIN and TRIM
Legend: I=input, O=output, I/O=input/output, P=power, A=analog, PU=internal pull-up
8.
Pin and Feature Description
if the output voltage is outside of the window defined
by the Power Good High and Low thresholds.
8.1
OK, Fault Status
8.5
CCA, Compensation Coefficient Address
The open drain input/output with the internal pull-up
resistor. The POL converter pulls its OK pin low, if a
fault occurs. Pulling low the OK input by an external
circuitry turns off the POL converter.
8.2 SYNC, Frequency Synchronization Line
The bidirectional input/output with the internal pull-up
resistor. If the POL converter is configured as a
master, the SYNC line propagates clock to other
POL converters. If the POL converter is configured
as a slave, the internal clock recovery circuit
synchronizes to the clock of the SYNC line.
The input with internal pull-up to select one of 2 sets
of digital filter coefficients optimized for different
characteristics of output capacitance.
8.6 MARGIN, Output Voltage Margining
The output of the 2V internal voltage reference that
is used to program the output voltage of the POL
converter.
8.7 EN, Enable
The input with the internal pull-up resistor. The POL
converter is turned off, when the pin is pulled low
8.3
IM, Interleave Mode
8.8
TRIM, Output Voltage Trim
The input with the internal pull-up resistor. Pulling
the IM pin low configures a POL converter as a
master.
8.4 PG, Power Good
The open drain input/output with the internal pull-up
resistor. The pin is pulled low by the POL converter,
The input of the TRIM comparator for the output
voltage programming.
The output voltage can be programmed by a single
resistor connected between MARGIN and TRIM
pins.
ZD-02013 Rev. BB.2, 30-Jun-10
www.power-one.com
Page 11 of 13
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