MAX17010EVKIT+ Maxim Integrated Products, MAX17010EVKIT+ Datasheet - Page 3

• Manufacturer Part Number: MAX17010EVKIT+
• Description: Power Management Modules & Development Tools MAX17010 EVAL KIT MAX17010 EVAL KIT
• Manufacturer: Maxim Integrated Products

Specifications of MAX17010EVKIT+

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

The MAX17010 EV kit contains a step-up switching reg-
ulator, a positive two-stage charge pump, a negative
single-stage charge pump, a high-speed op amp, and
eight high-voltage level-shifting buffers for scan-driver
applications. The EV kit operates from a DC power sup-
ply between 1.8V and 5.5V that provides at least 2A.
As configured, the step-up switching regulator (VMAIN)
generates an 8.5V output and provides at least 200mA
from a 1.8V input. It also provides at least 300mA from
a 2.7V input and 700mA from a 5.5V input. The step-up
switching-regulator output voltage can be adjusted up
to 18V with different feedback resistors (see the Output
Voltage Selection section).
The GON consists of two positive charge-pump stages to
generate approximately 23V and can provide greater
than 20mA. The GOFF consists of a single negative
charge-pump stage to generate approximately -7.5V and
can provide greater than 20mA. Loading GON and GOFF
reduces the available VMAIN current proportionally.
The op amp output (VCOM) is set to 4.25V and can
source or sink peak current up to 150mA. The output can
be reconfigured to other voltages with voltage-divider
resistors (see the Output Voltage Selection section).
The eight logic-level to high-voltage level-shifting buffers
can buffer eight logic inputs (A1–A8) and shift them to a
desired level (Y1–Y8) to drive TFT-LCD row logic. Each
buffer outputs the voltage on the GOFF pin (set to the
voltage on the GOFF pad through R20) when its respec-
tive input is logic-high. Each buffer (Y1–Y6) outputs the
voltage at GON1 (set to GON through R16) when its
respective input is logic-high. Similarly, Y7 and Y8 output
the voltage at GON2 (set to GON through R17).
The eight switches within SW1 are used to select logic
levels on A1–A8 for testing purposes. Set each switch
open when driving A1–A8 with external logic. The eight
switches within SW2 are used to connect capacitive
loads to Y1–Y8 for testing purposes. Set each switch
open when Y1–Y8 drive an actual panel load.
The MAX17010 EV kit incorporates a jumper (JU1) to con-
trol the SHDN pin. See Table 1 for jumper JU1 functions.
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Detailed Description
Jumper Selection
MAX17010 Evaluation Kit
The MAX17010 EV kit’s step-up switching-regulator out-
put (VMAIN) is set to 8.5V by feedback resistors R2
and R3. To generate output voltages other than 8.5V
(up to 18V), select different external voltage-divider
resistors, R2 and R3.
Note that changing the VMAIN voltage setting changes
the GON and GOFF charge-pump output voltages. The
voltage range on GOFF is limited to -10V and the volt-
age range of GON1 and GON2 is limited to 30V. If
VMAIN is set for more than 10V, PCB traces shorting
R16, R17, and R20 should be cut, disconnecting
GON1, GON2, and GOFF from the charge-pump out-
puts. If operation of the high-voltage buffers is desired,
power GON1, GON2, and GOFF from an external sup-
ply or postregulated charge-pump outputs.
In addition, output capacitors C16 and C17 are rated
for 16V. To set VMAIN for greater than 16V, use higher
voltage-rated capacitors. Refer to the Main Step-Up
Regulator, Output Voltage Selection section in the
MAX17010 data sheet for instructions on selecting
resistors R2 and R3.
The MAX17010 EV kit’s op amp is configured as a unity-
gain buffer by the PCB trace shorting R19 between
NEG and VCOM. The voltage at the noninverting input
(POS) is set to half of VMAIN by voltage-divider resis-
tors R5 and R6. To set VCOM to other voltages (up to
VMAIN), select different divider resistors.
Table 1. Jumper JU1 Functions
* Default position.
Not installed
POSITION
Installed*
SHUNT
Op Amp Output Voltage (VCOM)
SHDN is tied to PIN
SHDN is tied to
ground through R7
SHDN PIN
Output Voltage Selection
Step-Up Switching-Regulator
Output Voltage (VMAIN)
Outputs enabled
(VMAIN = 8.5V)
Outputs disabled
(VMAIN ≈ PIN)
EV KIT OUTPUTS
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