MAX745EAP+ Maxim Integrated Products, MAX745EAP+ Datasheet - Page 4

• Manufacturer Part Number: MAX745EAP+
• Description: IC BATTERY CHARGER LI+ 20-SSOP
• Manufacturer: Maxim Integrated Products

Specifications of MAX745EAP+

• Function: Charge Management
• Battery Type: Lithium-Ion (Li-Ion)
• Voltage - Supply: 6 V ~ 24 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 20-SSOP
• Output Voltage: 5.4 V
• Operating Supply Voltage: 6 V to 24 V
• Supply Current: 4 mA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Switch-Mode Lithium-Ion
Battery Charger
(T
noted.)
4
__________________________________________Typical Operating Characteristics
A
= +25°C, V
_______________________________________________________________________________________
5.50
5.45
5.40
5.35
5.30
5.25
5.20
5.15
5.10
5.05
4.205
4.204
4.203
4.202
4.201
4.200
4.199
4.198
4.197
4.196
4.195
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0
DCIN
0 0.1 0.2
0
0
R1 = 0.2Ω
R16 = SHORT
R12 = OPEN CIRCUIT
= 18V, V
vs. CHARGING CURRENT
5
REFERENCE VOLTAGE
25
VL LOAD REGULATION
VL OUTPUT CURRENT (mA)
CHARGING CURRENT (A)
BATTERY VOLTAGE
vs. TEMPERATURE
0.3
TEMPERATURE (°C)
0.4
BATT
10
0.5 0.6 0.7 0.8 0.9
50
= 4.2V, CELL0 = CELL1 = GND, C
15
75
20
1.0
100
25
VL
= 4.7µF C
4.25
4.24
4.23
4.22
4.21
4.20
4.19
4.18
4.17
4.16
4.15
4.45
4.40
4.35
4.30
4.25
4.20
4.15
4.10
4.05
4.00
3.95
200
180
160
140
120
100
80
60
40
20
REF
0
0
0
0
= 0.1µF. Circuit of Figure 1, unless otherwise
R1 = 0.2Ω
0.5 1.0
REFERENCE LOAD REGULATION
0.5
500
CURRENT-SENSE VOLTAGE
REFERENCE CURRENT (µA)
1.0
vs. VADJ VOLTAGE
vs. SETI VOLTAGE
1000
VOLTAGE LIMIT
1.5
SETI VOLTAGE (V)
VADJ VOLTAGE (V)
1.5
2.0
1500
2.0
2.5 3.0 3.5 4.0
2.5
2000
3.0
2500
3.5
3000
4.0
4.5