Renesas ISL78010EVAL1Z User Manual

ISL78010EVAL1Z
Evaluation Board
The ISL78010EVAL1Z evaluation board is used to
demonstrate the performance of the ISL78010 IC used
for automotive grade TFT-LCD power supply solution.
The top side and the bottom side of ISL78010EVAL1Z
are shown in Figures 1 and 2, respectively. This board
consists of power and load connectors for source and
load side, external passive components, and the place
holders reserved for the following applications:
1. Place holder for second stage positive charge pump
for high voltage application at V
2. Place holder for additional external compensation.
3. Place holder for snubber circuits to improve EMI
performance.
FIGURE 1. TOP VIEW OF ISL78010EVAL1Z
FIGURE 2. BOTTOM VIEW OF ISL78010EVAL1Z
The input voltage range is from 3V to 5V, and the
maximum output voltage on main boost rail is 20V.
AN1523 Rev 0.00
January 14, 2010

Reference Documents

• ISL78010 Data Sheet (FN6501)

Key Features

• 2A current FET
• 3V to 5V input
• Up to 20V boost output
• 1% regulation on boost output
• V
rail.
ON
• Programmable sequence delay
• Fully fault protected
• Thermal shutdown
• Internal soft-start
• 32 Ld 5x5 TQFP packages
• Pb-free plus anneal available (RoHS compliant)
Recommended Equipment
The following materials are recommended to perform
testing:
• 0V to 10V Power Supply with at least 5A source
• Electronic Loads capable of sinking current up to 5A
• Digital Multimeters (DMMs)
• 100MHz quad-trace oscilloscope

Quick Setup Guide

USER'S MANUAL
-V -V -V
LOGIC BOOST OFF ON
V -V -V -V
LOGIC OFF BOOST ON
current capability
1. Set power source to be 5V and with 0.5A current
limiting.
2. Apply 5V to the input: J1 (V
is input-. Check the power source to make sure that
no current limiting occurs.
3. Release the input power source's current limiting to
5A.
4. Turn off the input power source. Set the electronic
load to constant current load of 100mA, connect the
electronic load to the V
output+, J8 (PGND) is output-.
5. Turn on the input power source, verify the output
voltage is around 12V for V
6. Verify that the ripple voltage (about 1MHz
frequency) for the V
BST
7. Verify the voltage at V
ON
20V.
8. Verify the voltage at V
LOGIC
is 2.5V.
9. Verify the voltage at V
OFF
is -8V.
AN1523
Rev 0.00
January 14, 2010
or
sequence control
) is input+, J2 (V
IN+ IN-
output: J6 (V ) is
BST BST
(J6, J8).
BST
voltage is around 50mV.
rail (between J3 and J7) is
rail (between J4 and J7)
rail (between J5 and J7),
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)