MAX1501ETE Maxim Integrated Products, MAX1501ETE Datasheet - Page 15

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

Specifications of MAX1501ETE

• Product: Charge Management
• Battery Type: Li-Ion, Li-Polymer, NiCd, NiMH
• Operating Supply Voltage: 0 V to 13 V
• Supply Current: 5 mA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Package / Case: TQFN-16
• Charge Safety Timers: Yes
• Mounting Style: SMD/SMT
• Temperature Monitoring: Yes
• Uvlo Start Threshold: 4 V
• Uvlo Stop Threshold: 4.25 V

Figure 11 shows a circuit that adds temperature protec-
tion to the battery. Install the thermistor as close to the
battery as possible to ensure accurate temperature mea-
surement. The output of this circuit is logic high when the
battery temperature is less than 0°C and greater than
+50°C. Driving CHGEN high disables the charger.
Connect IN and INP together as close to the device as
possible and bypass with a 1µF ceramic capacitor.
Bypass BATT to GND with a 10µF ceramic capacitor.
Provide a large copper GND plane to allow the exposed
paddle to sink heat away from the device. Connect the
battery to BATT as close to the device as possible to
provide the most accurate battery voltage sensing.
Make all high-current traces short and wide to minimize
voltage drops.
Figure 11. Battery Temperature Protection
Highly Integrated, Linear Battery Charger with
Thermal Regulation for Portable Applications
RT = 10kΩ
AT +25°C
______________________________________________________________________________________
5V
5.1kΩ
Layout and Bypassing
2.24kΩ
10kΩ
4.1kΩ
3.66kΩ
5V
3kΩ
3kΩ
100kΩ
100kΩ
TRANSISTOR COUNT: 5717
PROCESS: BiCMOS
**CONNECT EXPOSED PADDLE TO GND
1kΩ
1kΩ
200kΩ
GND
SETI
INP
IN
1
2
3
4
3kΩ
+25°C
+50°C
T
16
0°C
5
BATT
**EXPOSED PADDLE
5mm x 5mm
THIN QFN
MAX1501Z
MAX1501/
15
6
CHGEN
27.28kΩ
10.00kΩ
MAX1501/MAX1501Z
4.16kΩ
R
T
Pin Configuration
Chip Information
14
7
GND
IN
13
8
12
11
10
9
BATT
ACOK
CHGEN
MODE
15