ZL6100EVAL1Z Intersil, ZL6100EVAL1Z Datasheet - Page 12

• Manufacturer Part Number: ZL6100EVAL1Z
• Description: EVAL BOARD USB ZL6100
• Manufacturer: Intersil

Specifications of ZL6100EVAL1Z

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Example from Figure 8: For V
Index1 = 4 x 1.33V = 5.32;
From Table 3, R1 = 16.2k
Index0 = (100 x 1.33V) – (25 x 5) = 8;
From Table 3, R0 = 21.5k
The output voltage can be determined from the R0 (Index0)
and R1 (Index1) values using Equation 2:
SMBUS MODE
The output voltage may be set to any value between 0.6V
and 5.0V using a PMBus command over the I
interface. See Application Note AN2033 for details.
V
FIGURE 8. OUTPUT VOLTAGE RESISTOR SETTING EXAMPLE
OUT
TABLE 3. RESISTORS FOR SETTING OUTPUT
INDEX
=
10
11
12
0
1
2
3
4
5
6
7
8
9
21.5 kO
Index0
--------------------------------------------------------
R0
VOLTAGE
Ω
ZL
V0
+
100
(
R0 OR R1
V1
25xIndex1
16.2 k O
(kΩ)
12.1
13.3
14.7
16.2
17.8
19.6
21.5
23.7
26.1
28.7
31.6
SW
GH
10
11
GL
R1
Ω
12
OUT
)
V
IN
= 1.33V,
INDEX
13
14
15
16
17
18
19
20
21
22
23
24
2
V
1.33V
C/SMBus
OUT
R0 OR R1
(kΩ)
34.8
38.3
42.2
46.4
51.1
56.2
61.9
68.1
82.5
90.9
100
75
(EQ. 2)
ZL6100
POLA VOLTAGE TRIM MODE
The output voltage mapping can be changed to match the
voltage setting equations for POLA and DOSA standard
modules.
The standard method for adjusting the output voltage for a
POLA module is defined by Equation 3:
The resistor, R
(see Figure 9).
To stay compatible with this existing method for adjusting the
output voltage, the module manufacturer should add a 10kΩ
resistor on the module as shown in Figure 10. Now, the
same R
same output voltage when using a digital POLA module
based on the ZL6100.
The POLA mode is activated through pin-strap by
connecting a 110k resistor on V0 to SGND. The V1 pin is
then used to adjust the output voltage as shown in Table 4
.
R
FIGURE 9. OUTPUT VOLTAGE SETTING ON POLA MODULE
SET
=
SET
10kΩ
FIGURE 10. R
used for an analog POLA module will provide the
0.69V
×
SET
--------------------------------- -
V
MODULE
OUT
, is external to the POLA module
POLA
0.69V
R
1.43kO
SET
–
110kO
POLA MODULE
0.69V
SET
+
-
Ω
Ω
ON A POLA MODULE
V0
–
1.43kΩ
10kO
ZL6100
V1
Ω
R
10kO
SET
Ω
V
OUT
December 15, 2010
FN6876.2
(EQ. 3)