DC1645A-B Linear Technology, DC1645A-B Datasheet - Page 3

• Manufacturer Part Number: DC1645A-B
• Description: BOARD EVAL LTM8061-4.2
• Manufacturer: Linear Technology
• Series: LTM®, uModule®r

Specifications of DC1645A-B

• Main Purpose: Power Management, Battery Charger
• Embedded: No
• Utilized Ic / Part: LTM8061
• Primary Attributes: 2 Cell- Li-Ion, 4.2V 2A Output
• Secondary Attributes: LED Status Indicators
• Lead Free Status / RoHS Status: Not applicable / Not applicable

QUICK START PROCEDURE
8a. Set JP1 to OFF. Verify the charging current, I
9a. Set JP1 to ON. Connect a jumper from the NTC pin to
less than 5mA and the FAULT LED and the CHRG LED
are off.
ground. Verify the charging current, I
5mA and the FAULT LED and the CHRG LED are on.
Figure 2. Effi ciency vs I
90
85
80
75
70
65
60
0
POWER
SUPPLY
PS1
+
–
+
AM1
500
V
INA
–
= 24V
–
+
VM1
I
BAT
1000
(mA)
BAT
V
INA
, 4.1V
1500
= 12V
Figure 1. DC1645A Proper Equipment Setup
BAT
1645A F02
BAT
2000
, is less than
BAT
, is
10a. Remove the jumper from NTC to ground. Verify the
11a. This concludes the test for the C and D versions.
DC1645A-A/DC1645A-B/
DC1645A-C/DC1645A-D
charging current, I
the FAULT LED is off and the CHRG LED is on.
Turn off PS1 and PS2.
Figure 3. Input Current vs I
900
800
700
600
500
400
300
200
100
0
0
500
BAT
VM2
+
, is between 1.775A and 2.225A,
–
+
AM2
I
BAT
1000
(mA)
–
V
INA
*
= 12V
BAT
V
SUPPLY
POWER
1500
INA
PS2
, 4.1V
+
= 24V
–
1645A F03
BAT
2000
dc1645af
3