ISL6115AEVAL1Z Intersil, ISL6115AEVAL1Z Datasheet - Page 9

• Manufacturer Part Number: ISL6115AEVAL1Z
• Description: EVAL BOARD 1 FOR ISL6115A
• Manufacturer: Intersil

Specifications of ISL6115AEVAL1Z

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

ISL6115AEVAL1Z Board
The ISL6115AEVAL1Z is default provided as a +12V
high side switch controller with the CR level set at
~2.5A. See Figure 11 for ISL6115AEVAL1Z schematic
and Table 3 for BOM. Bias and load connection points
are provided along with test points for each IC pin.
With J1 installed the ISL6115A will be biased from the
+12V supply (V
VLOAD+. PWRON pin pulls high internally enabling the
ISL6115A if not driven low via PWRON test point or J2.
DESIGNATOR
COMPONENT
R1
Q1
U1
Q1
R1
R2
R3
R4
C1
C2
C3
J1
J2
VIN
VOUT
R3
C1
R2
FIGURE 14. ISL6115AEVAL1Z HIGH SIDE SWITCH APPLICATION and PHOTOGRAPH
IN
ISL6115A
N-FET
Load Current Sense Resistor
Gate Stability Resistor
Overcurrent Voltage Threshold Set
Resistor
PGOOD Pull up Resistor
Gate Timing Capacitor
IC Decoupling Capacitor
Time Delay Set Capacitor
Bias Voltage Selection Jumper
PWRON Disable
) being switched. Connect the load to
1
2
3
4
J1
VLOAD+
ISL6115A
COMPONENT NAME
U1
C2
9
V
+12V
BIAS
8
7
6
5
TABLE 3. BILL OF MATERIALS, ISL6115AEVAL1Z
AGND
V
BIAS
R4
PGOOD
J2
PWRON
C3
C
TIM
ISL6115A
Intersil
11.5mΩ, 30V, 11.5A Logic Level N-Channel Power MOSFET or equivalent
20Ω 0603 Chip Resistor
1.24kΩ 0603 Chip Resistor (Vth = 24.8mV)
10kΩ 0603 Chip Resistor
0.001µF 0402 Chip Capacitor (<2ms)
0.1µF 0402 Chip Capacitor
0.01µF 0402 Chip Capacitor (1ms)
Install if switched rail voltage is = +12V. Remove and provide separate
+12V bias voltage to U2 via V
being evaluated.
Install J2 to disable U2. Connects PWRON to GND.
WSL-2512 10mΩ 1W Metal Strip Resistor
With R
with the 10mΩ sense resistor (R
ISL6115AEVAL1Z has a nominal CR level of 2.5~A. The
0.01µF delay time to latch-off capacitor results in a
nominal 1ms before latch-off of output after an OC
event.
Reconfiguring the ISL6115AEVAL1Z board for a higher
CR level can be done by changing the R
R
much higher current.
ISET
resistor values as the provided FET is rated for a
3
COMPONENT DESCRIPTION
= 1.24kΩ the CR Vth is set to 24.8mV and
BIAS
if ISL6116, ISL6117 or ISL6120 is
1
) the
SENSE
April 23, 2010
and/or
FN6855.1