MAX1501ETE-T Maxim Integrated Products, MAX1501ETE-T Datasheet - Page 10

• Manufacturer Part Number: MAX1501ETE-T
• Description: Battery Management Linear Bat Charger w/Thermal Reg
• Manufacturer: Maxim Integrated Products

Highly Integrated, Linear Battery Charger with
Thermal Regulation for Portable Applications
Figure 3. MAX1501Z Charge State Diagram
CHGEN and MODE together set the operating modes
of the MAX1501. Both inputs possess internal 175kΩ
pulldown resistors to GND. Table 1 describes the four
operating modes of the MAX1501.
10
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CHGEN = HIGH
MODE = LOW
CHARGER OFF
ACOK = LOW
GLED = OFF
DISABLE
RLED = OFF
Detailed Description
Modes of Operation
CHGEN = LOW
ACOK = HIGH
CHGEN = LOW
ACOK = LOW
SOFT-START
(THERMALLY PROTECTED)
100% SETI CURRENT
10% SETI CURRENT
FAST CHARGE
(VOLTAGE LOOP)
MAX1501Z ONLY
CHARGER OFF
ACOK = LOW
PREQUAL
ACOK = LOW
ACOK = LOW
GLED = OFF
GLED = OFF
RLED = OFF
GLED = OFF
RLED = ON
RLED = OFF
RLED = ON
TOP OFF
GLED = ON
OFF
I
CHG
V
BATT
Table 1. Modes of Operation
< I
Li+ Charge Mode
NiMH/NiCd Charge Mode
Disable Mode
No-Battery Mode
TOP-OFF
> 2.8V
V
BATT
< 2.8V
ACOK = (4.5V < V
CHGEN = LOW
MODE
THERMALLY PROTECTED)
IN
(CURRENT LIMITED AND
< 6.5V) AND (V
ACOK = LOW
RLED = OFF
GLED = OFF
NOBATT
IN
> V
BATT)
CHGEN
0
0
1
1
SOFT-START
CHGEN = HIGH
MODE = HIGH
MODE
0
1
0
1