MAX1535 Maxim Integrated Products, MAX1535 Datasheet - Page 23

• Manufacturer Part Number: MAX1535
• Description: Highly Integrated Level 2 Smbus Battery Charger
• Manufacturer: Maxim Integrated Products

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or the charger goes in or out of dropout. The interrupts
from each of the ChargerStatus() bits can be masked by
an associated ChargerMode() bit POWER_FAIL_MASK
(bit 6), BATTERY_PRESENT_MASK (bit 5), or
AC_PRESENT_MASK (bit 4).
Interrupts are cleared by sending a command to the
AlertResponse() address, 0x19, using a modified
Receive-Byte protocol. In this protocol, the devices that
set an interrupt try to respond by transmitting their
addresses, and the devices with the highest priority or
most leading zeros are recognized and cleared. This
process is repeated until all devices requesting inter-
rupts are addressed and cleared. The MAX1535
responds to the AlertResponse() address with 0x13,
which is its address and a trailing 1.
Table 6. ChargeCurrent()
Command: 0x14
BIT
10
11
12
13
14
15
0
1
2
3
4
5
6
7
8
9
______________________________________________________________________________________
Charge Current, DACI 0
Charge Current, DACI 1
Charge Current, DACI 2
Charge Current, DACI 3
Charge Current, DACI 4
Charge Current, DACI 5
BIT NAME
—
—
—
—
—
—
—
—
—
—
Highly Integrated Level 2 SMBus
Not used. Normally a 1mA weight.
Not used. Normally a 2mA weight.
Not used. Normally a 4mA weight.
Not used. Normally an 8mA weight.
Not used. Normally a 16mA weight.
Not used. Normally a 32mA weight.
Not used. Normally a 64mA weight.
0 = Adds 0mA of charger-current compliance.
1 = Adds 128mA of charger-current compliance.
0 = Adds 0mA of charger-current compliance.
1 = Adds 256mA of charger-current compliance.
0 = Adds 0mA of charger-current compliance.
1 = Adds 512mA of charger-current compliance.
0 = Adds 0mA of charger-current compliance.
1 = Adds 1024mA of charger-current compliance.
0 = Adds 0mA of charger-current compliance.
1 = Adds 2048mA of charger-current compliance, 8064mA max.
0 = Adds 0mA of charger-current compliance.
1 = Adds 4096mA of charger-current compliance, 8064mA max.
Not used. Normally an 8192mA weight.
Not used. Normally a 16384mA weight.
Not used. Normally a 32768mA weight.
Figure 6. ChargeCurrent() Code to Charge-Current Set Point
Mapping (R
8064
4096
2048
128
2
0x0080
= 10mΩ)
DESCRIPTION
Battery Charger
0x0800
CHARGECURRENT() CODE
0x1000
0x1F80
0xFFFF
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