DC1645A-D Linear Technology, DC1645A-D Datasheet - Page 2

• Manufacturer Part Number: DC1645A-D
• Description: BOARD EVAL LTM8061-8.4
• Manufacturer: Linear Technology
• Series: LTM®, uModule®r

Specifications of DC1645A-D

• Main Purpose: Power Management, Battery Charger
• Embedded: No
• Utilized Ic / Part: LTM8061
• Primary Attributes: 2 Cell- Li-Ion, 8.2V 2A Output
• Secondary Attributes: LED Status Indicators
• Lead Free Status / RoHS Status: Not applicable / Not applicable

DC1645A-A/DC1645A-B/
DC1645A-C/DC1645A-D
QUICK START PROCEDURE
Demonstration circuits 1645A-A, 1645A-B, 1645A-C and
1645A-D are easy to set up to evaluate the performance of the
LTM8061-4.1, LTM8061-4.2, LTM8061-8.2, LTM8061-8.4.
Refer to Figure 1 for proper measurement and equipment
setup.
DC1645A-A and DC1645A-B
Follow the procedure below for demo circuits 1645A-A
and 1645A-B
1.
2.
3.
4.
5.
6.
7.
8.
2
Jumper and Power Supply Setting:
JP1 = ON
JP2 = C/10 PS2 = OFF
Turn on PS2 and slowly increase the voltage to 2.7V
while monitoring the current into the BAT pin. If the
current is less than 5mA, turn on PS1 and increase
voltage to 12V.
Verify that the battery charging current, I
tween 250mA and 350mA. The CHRG LED should be
on and the FAULT LED should be off.
Increase PS2 until V
rent, I
current, I
the CHRG LED remains on.
Increase PS2 until V
charging current, I
CHRG LED is off.
Decrease PS2 until V
current, I
CHRG LED is on.
Decrease PS2 until V
from RNG/SS to ground. Verify the charging current,
I
at V
the 10k resistor.
Set JP1 to OFF. Verify the charging current, I
less than 5mA and the FAULT LED and the CHRG LED
are off.
BAT
RNG/SS
, is between 850mA and 1.0A. Verify the voltage
IN
, is between 700mA and 850mA, the battery
BAT
BAT
, is between 450mV and 550mV. Remove
, is between 1.775A and 2.225A and that
, is between 1.775A and 2.225A and the
PS1 = OFF
BAT
BAT
BAT
BAT
BAT
, is less than 5mA and the
is 3.6V. Connect a 10k resistor
is 3.6V. Verify the input cur-
is 4.3V. Verify the battery
is 3.9V. Verify the battery
BAT
, is be-
BAT
, is
9.
10. Remove the jumper from NTC to ground. Verify the
11. This concludes the test for the A and B versions. Turn
DC1645A-C and DC1645A-D
Follow the procedure below for demo circuits -C and -D
1a. Jumper and Power Supply Setting:
2a. Turn on PS2 and slowly increase the voltage to 5.4V
3a. Verify that the battery charging current, I
4a. Increase PS2 until V
5a. Increase PS2 until V
6a. Decrease PS2 until V
7a. Decrease PS2 until V
Set JP1 to ON. Connect a jumper from the NTC pin
to ground. Verify the charging current, I
than 5mA and the FAULT LED and the CHRG LED are
on.
charging current, I
the FAULT LED is off and the CHRG LED is on.
off PS1 and PS2.
JP1 = ON
JP2 = C/10 PS2 = OFF
while monitoring the current into the BAT pin. If the
current is less than 5mA, turn on PS1 and increase
voltage to 12V.
tween 250mA and 350mA. The CHRG LED should be
on and the FAULT LED should be off.
current, I
battery current, I
and the CHRG LED remains on.
charging current, I
CHRG LED is off.
current, I
the CHRG LED is on.
sistor from RNG/SS to ground. Verify the charging
current, I
voltage at V
Remove the 10k resistor.
BAT
BAT
IN
, is between 1200mA and 1700mA, the
RNG/SS
, is between 1.775A and 2.225A and that
, is between 800mA and 1.0A. Verify the
PS1 = OFF
BAT
BAT
, is between 450mV and 550mV.
BAT
, is between 1.775A and 2.225A
, is between 1.775A and 2.225A,
BAT
BAT
BAT
BAT
, is less than 5mA and the
is 7.2V. Connect a 10k re-
is 8.6V. Verify the battery
is 7.8V. Verify the battery
is 7.2V. Verify the input
BAT
BAT
, is less
, is be-
dc1645af