ICS1702EB Galaxy Power, Inc., ICS1702EB Datasheet - Page 2

• Manufacturer Part Number: ICS1702EB
• Description: Ics1702 Evaluation Board.
• Manufacturer: Galaxy Power, Inc.

ICS1702 Evaluation Board
The board provides several low value resistors that may be used to
set the amplitude of the discharge pulse. The resistors can be
installed in any or all of the locations labeled R1, R2, or R3. The
resistor value is calculated by setting the amplitude of the
discharge pulse. The discharge pulse amplitude is typically 2.5
times the charge current based on 1.4V/cell. The required power
rating of the resistor is highest when the Discharge-to-Charge and
Discharge-Only Auxiliary Modes are used. See the ICS1702 data
sheet for additional information. The resistor locations R1, R2, and
R3 are connected in series. The unused locations must have a
jumper to complete the circuit. Not using the discharge pulse
feature will not affect the performance of the ICS1702.
The ICS1702 is capable of operating at nine different charge rates
between 4C (15 minutes) and C/4 (four hours). The charge rate is
selected by installing jumpers in the appropriate locations. Table 2
shows the proper settings to use for the desired charge rate.
The ICS1702 has several auxiliary modes available. Table 3
shows the jumper configurations for the auxiliary modes.
Direct Maintenance
Charging System Test
Ten Hour Timer
Discharge-to-Charge
Condition
Fast Charge
Discharge-Only
C/2.5 (150 min)
C/1.5 (90 min)
C/2 (120 min)
C/3 (180 min)
C/4 (240 min)
1.3C (45 min)
Mode Selected
Charge Rate
4C (15 min)
2C (30 min)
1C (60 min)
Jumper
1 & 2
1 & 2
1 & 2
2 & 3
2 & 3
2 & 3
None
None
None
Jumper
AUX0
S0
2 & 3
2 & 3
1 & 2
1 & 2
1 & 2
None
None
Jumper
Jumper
1 & 2
2 & 3
1 & 2
2 & 3
1 & 2
2 & 3
None
None
None
AUX1
1 & 2
2 & 3
1 & 2
2 & 3
2 & 3
None
None
Table 2: Charge Rate List
S1
Table 3: Mode Select List
Indefinite C/40 maintenance charge
Charging system test for embedded applications
Limits total charge including the maintenance charge to 10 hours
Battery discharge to 1V/cell followed by the selected charge mode
Timed C/10 topping charge followed by a C/40 maintenance charge
Normal fast charge
Battery discharge to 1V/cell
Topping Charge
one every 40 sec
one every 20 sec
one every 13 sec
one every 10 sec
one every 7 sec
one every 5 sec
one every 4 sec
one every 3 sec
one every 2 sec
pulse Rate
2
Maintenance Charge
one every 160 sec
one every 80 sec
one every 53 sec
one every 40 sec
one every 27 sec
one every 20 sec
one every 16 sec
one every 13 sec
one every 10 sec
Mode Operation
Pulse Rate
Duration (after reset)
Fast Charge Timer
110 min
144 min
212 min
244 min
275 min
21 min
39 min
57 min
75 min