ISL85033DUALEVAL1Z Intersil, ISL85033DUALEVAL1Z Datasheet - Page 2

• Manufacturer Part Number: ISL85033DUALEVAL1Z
• Description: EVAL BOARD 1 FOR ISL85033
• Manufacturer: Intersil

Specifications of ISL85033DUALEVAL1Z

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

Disabling/enabling Function
The ISL85033 evaluation board contains S1, S2 switches
to enable or disable each of the channels, thus allowing
low quiescent current state. Table 1 details this function.
If EN1 or EN2 are floating, then the outputs will start in
the sequencing described in the data sheet section on
output sequencing and also summarized in Table 2.
OFF
OFF
S1
ON
ON
OFF
OFF
ON
ON
S2
TABLE 1. SWITCH SETTINGS
Enable V
Disable V
Enable V
Disable V
OUT1;
OUT1;
OUT1;
OUT1;
ON/OFF CONTROL
2
Disable V
Enable V
Enable V
Disable V
OUT2
OUT2
OUT2
OUT2
Application Note 1574
SYNC Control
The ISL85033 evaluation board has an SI pin that allows
external synchronization frequency to be applied. Default
board configuration has R18 = 0 to GND, which defaults
to the internal selected switching frequency. Removing
R18 allows the synchronization to be external between
600kHz to 4MHz. Do not leave this pin floating.
Floating
Floating
EN1
High
High
Floating
Floating
EN2
High
High
V
OUT2
Same time
as V
V
After
First
OUT1
TABLE 2.
OUT2
> 90%
V
OUT1
Same time
as V
V
After
First
OUT2
OUT1
> 90%
November 29, 2010
Allowed
NOTE
AN1574.2
Not