MAX8731AETI+ Maxim Integrated Products, MAX8731AETI+ Datasheet - Page 10

• Manufacturer Part Number: MAX8731AETI+
• Description: IC SMBUS LVL2 BATT CHRGR 28TQFN
• Manufacturer: Maxim Integrated Products

Specifications of MAX8731AETI+

• Function: Charge Management
• Battery Type: Multi-Chemistry
• Voltage - Supply: 8 V ~ 26 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-WFQFN Exposed Pad
• Product: Charge Management
• Output Voltage: 5.4 V
• Operating Supply Voltage: 8 V to 26 V
• Supply Current: 2 uA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Charge Safety Timers: Yes
• Mounting Style: SMD/SMT
• Temperature Monitoring: No
• Uvlo Start Threshold: 2.5 V
• Uvlo Stop Threshold: 100 mV
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

SMBus Level 2 Battery Charger
with Remote Sense
(Circuit of Figure 1, adapter = 19.5V, ChargeVoltage() = 16.8V, ChargeCurrent() = 3.854A, InputCurrent() = 3.584A, T
unless otherwise noted.)
10
-0.2
-0.4
-0.6
-0.8
-1.0
-10
1.0
0.8
0.6
0.4
0.2
-2
-4
-6
10
-2
-4
-6
-8
6
4
2
0
______________________________________________________________________________________
8
6
4
2
0
0
0
0
0
vs. CHARGE CURRENT-LIMIT SETTING
vs. INPUT CURRENT-LIMIT SETTING
INPUT CURRENT LIMIT = 2.048A
OPERATING AT INPUT CURRENT LIMIT
IINP ERROR vs. SYSTEM CURRENT
TYPICAL
0.5
INPUT CURRENT-LIMIT ERROR
INPUT CURRENT-LIMIT SETTING (A)
CHARGE-CURRENT ERROR
2
CHARGE-CURRENT SETTING (A)
TYPICAL
1.0
2
INPUT CURRENT LIMIT = 3.584A
SYSTEM CURRENT (A)
INPUT CURRENT LIMIT = 4.096A
4
1.5
2.0
4
MAXIMUM
6
MINIMUM
2.5
MINIMUM
MAXIMUM
8
3.0
6
3.5
10
4.0
8
-0.2
-0.4
0.4
0.2
2.5
2.0
1.5
1.0
0.5
-2
-4
0
0
4
2
0
0
0
3
INPUT CURRENT LIMIT = 3.584A
V
IINP ERROR vs. SYSTEM CURRENT
BATT
INPUT CURRENT-LIMIT ERROR
INPUT CURRENT LIMIT = 2.048A
V
= 8.4V
CHARGE-CURRENT ERROR
BATT
3.072A
6
vs. SYSTEM CURRENT
vs. BATTERY VOLTAGE
1
1
SYSTEM CURRENT (A)
= 12.6V
INPUT CURRENT LIMIT = 3.584A
BATTERY VOLTAGE (V)
SYSTEM CURRENT (A)
V
BATT
9
3.968A
= 16.8V
2
2
Typical Operating Characteristics
12
INPUT CURRENT
LIMIT = 4.096A
8.064A
3
3
15
18
4
4
-0.2
-0.4
-0.6
-0.8
-1.0
1.0
0.8
0.6
0.4
0.2
-10
-10
-15
-20
-25
-30
10
-2
-4
-6
-8
-5
0
8
6
4
2
0
5
0
0
0
0
INPUT CURRENT LIMIT = 3.584A
ChargeCurrent( ) = 128mA
TRICKLE-CHARGE CURRENT ERROR
NOT SWITCHING
IINP ERROR vs. INPUT CURRENT
INPUT CURRENT-LIMIT ERROR
V
BATT
TYPICAL
1
3
vs. SYSTEM CURRENT
vs. BATTERY VOLTAGE
= 12.6V
1
SYSTEM CURRENT (A)
BATTERY VOLTAGE (V)
INPUT CURRENT (A)
2
6
V
2
3
9
BATT
V
BATT
= 16.8V
12
MAXIMUM
MINIMUM
4
= 8.4V
A
3
= +25°C,
15
5
18
4
6