MAX769EVKIT Maxim Integrated, MAX769EVKIT Datasheet - Page 2

• Manufacturer Part Number: MAX769EVKIT
• Description: Power Management IC Development Tools Evaluation Kit for the MAX769
• Manufacturer: Maxim Integrated
• Series: MAX769r

Table 2. Jumper Selection
NUMBER
JUMPER
JU10
JU11
JU12
JU1
JU2
JU3
JU4
JU5
JU6
JU7
JU8
JU9
JU12-2, JU12-3,
JU12-1 (N.C.),
JU12-4 (N.C.)
_______________________________________________________________________________________
POSITION
DEFAULT
MAX769
JU11-1,
JU11-2
On
On
On
On
On
On
On
On
On
Off
JU1 should be inserted if no external synchronous clock is used. If an external synchronous
clock is applied, then JU1 should be removed.
With JU2 inserted, the low battery input (LBI, LBO) is set to trip at 1V. With JU2 removed, LBI
is set for 0.6V. JU2 should be removed when making no-load operating current measure-
ments to prevent R12 and R14 from adding to the measured current.
With JU3 inserted, the reset input (RSIN, RSO) is set to trip at 1.6V. With JU3 removed, RSIN is
set for 0.6V. JU3 should be removed when making no-load operating current measure-
ments to prevent R15 and R16 from adding to the measured current.
JU4 connects a 100kΩ pull-up resistor (R17) from REG1 to the open-drain RSO output. JU4
can be removed if RSO is not used or if a different pull-up resistor is used.
JU5 connects a 100kΩ pull-up resistor (R10) from REG1 to the open-drain LBO output. JU5
can be removed if LBO is not used or if a different pull-up resistor is used.
JU6 connects an LED (LED1) to the serial data output (SDO). LED1 gives a visual indication of
serial output data when manually programming the IC with SW1, SW2, and SW3. JU6 should
be removed when using a µP-controlled interface, since the LED will not be visible at digital
clock speeds. JU6 should also be removed when making operating or quiescent-current
measurements.
JU7 connects SW1 to the serial clock input (SCL) (used to clock-in serial programming data).
Insert JU7 when programming the IC manually with SW1, SW2, and SW3. Remove JU7 when
using a digital serial interface at connector J1 or J2.
JU8 connects SW2 to the serial data input (SDI) (used to set serial programming data). Insert
JU8 when programming the IC manually with SW1, SW2, and SW3. Remove JU7 when using
a digital serial interface at connector J1 or J2.
JU9 connects SW3 to the chip-select input (CS) (used to activate the serial interface). Insert
JU9 when programming the IC manually with SW1, SW2, and SW3. Remove JU9 when using
a digital serial interface at connector J1 or J2.
Remove JU10 when a MAX769 is used. JU10 connects SW4 to the RUN input (MAX847 only).
JU11 has three pins to connect the REG2 input (REG2IN) to either REG1 (jumper J11-1 to J11-
2) or OUT (jumper J11-2 to J11-3).
JU12 has four pins. When the MAX769 is used, connect only jumper JU12-2 to JU12-3, leav-
ing JU12-1 and JU12-4 open. When a MAX847 is inserted, connect jumper JU12-1 to JU12-2
and jumper JU12-3 to JU12-4.
MAX769 Evaluation Kit
COMMENTS
3