ZY8105 Power-One, ZY8105 Datasheet - Page 11

• Manufacturer Part Number: ZY8105
• Description: Zy8105 5a Dc-dc Intelligent Pol
• Manufacturer: Power-One

6.
The schematic of a typical application of ZY8105 point-of-load converters (POL) is shown in Figure 16. The
system includes a ZM7300 series Digital Power Manager (DPM), a ZY8105 POL, and may include additional
ZY8105 POLs and other Z-One
wire SD (sync/data) line. The line provides synchronization of all POLs to the master clock generated by the DPM
and simultaneously performs data transfer between POLs and the DPM. Each POL has a unique 5-bit address
programmed by grounding respective address pins. To enable the current share, CS pins of POLs connected in
parallel are interconnected.
In addition to the SD line, OK pins of the POLs are connected to the respective OK pins of the DPM. A number of
POLs connected to the same OK pin of the DPM forms a group. Grouping of POLs enables users to program,
control, and monitor multiple POLs simultaneously and execute advanced fault management schemes.
The type, value, and the number of output capacitors shown in the schematic are required to meet the
specifications published in the data sheet. However, ZY8105 POLs are fully operational with different parameters
of output capacitors. The feedback loop compensation may need to be adjusted to optimize performance of the
POLs for specific parameters of the output capacitors.
ZD-01740 Rev. 1.0
+3.3V
SDA
SCL
IBV
Typical Application
R4
R3
10n
Figure 16. Block Diagram of Typical Application with Digital Power Manager and I
10k
10k
47k
10n
48
44
30
27
45
46
47
36
37
40
41
61
18
16
63
4
IBVS
AREF
SDA
SCL
ADDR2
ADDR1
ADDR0
INT3_N
INT2_N
INT1_N
INT0_N
LCK_N
RES_N
ACFAIL_N
HRES_N
IR
8
®
VSS VSS VSS VSS VSS VSS
6
VDD VDD VDD VDD VDD
series POLs. All POLs are connected to the DPM and to each other via a single-
9
25
ZM73XX
26
42
38
57
www.power-one.com
43
60
58
FE_EN
OKD
OKC
OKB
OKA
TDO
TMS
TCK
EN3
EN2
EN1
EN0
PG3
PG2
PG1
PG0
TDI
CB
SD
Intermediate Voltage Bus
23
17
56
53
20
13
11
34
33
31
32
50
55
49
51
52
54
7
5
100n
8V to 14V Input
100n
10
2
3
4
5
100n
ZY8105 5A DC-DC Intelligent POL
ADDR0
ADDR1
ADDR2
ADDR3
ADDR4
100n
6
PG
ZY8105
OK
8
9
SD
VOUT
GND
VIN
•
11
0.5V to 5.5V Output
7
1
2
C Interface
Capacitors
Low ESR
Ceramic
10µ
22µ
5mΩ
Connect to other
Z-One
Converters
22µ
Page 11 of 28
low output impedance
Tantalum capacitor is
the IBV source has
not required if
Data Sheet
TM
POL
125mΩ
22µ
+V
OUT