MAX8765ETI+ Maxim Integrated Products, MAX8765ETI+ Datasheet - Page 11

• Manufacturer Part Number: MAX8765ETI+
• Description: IC CHARGER BATTERY 28-TQFN
• Manufacturer: Maxim Integrated Products

Specifications of MAX8765ETI+

• Function: Charge Management
• Battery Type: Multi-Chemistry
• Voltage - Supply: 8 V ~ 28 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-WFQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

(Circuit of Figure 1, V
INDUCTOR
500mV/div
500mA/div
CURRENT
10V/div
V
V
-0.01
-0.02
-0.03
-0.04
-0.05
-0.06
-0.07
-0.08
-0.09
-0.10
DCIN
BATT
500
450
400
350
300
250
200
150
100
50
0
0
0
0
ICTL = LDO
VCTL = LDO
I
LINE STEP 18.5V TO 27.5V
CHARGE
2
REF VOLTAGE LOAD REGULATION
Low-Cost Multichemistry Battery Chargers
FREQUENCY vs. V
LINE-TRANSIENT RESPONSE
= 3A
100
4
6
REF CURRENT (µA)
(V
4 CELLS
8 10 12 14 16 18 20 22
______________________________________________________________________________________
DCIN
200
IN
10ms/div
- V
BATT
= 20V, T
300
I
VCTL = ICTL = LDO
) (V)
CHARGE
IN
3 CELLS
- V
BATT
= 3A
400
A
MAX1908 toc04
= +25°C, unless otherwise noted.)
500
-0.02
-0.04
-0.06
-0.08
-0.10
-0.1
-0.2
-0.3
-0.4
-0.5
-0.6
-0.7
-0.8
-0.9
-1.0
0.10
0.08
0.06
0.04
0.02
-0.1
-0.2
-0.3
-0.4
-0.5
0.5
0.4
0.3
0.2
0.1
Typical Operating Characteristics (continued)
0
0
0
-40
REF VOLTAGE ERROR vs. TEMPERATURE
0
0
V
LDO
1
OUTPUT V/I CHARACTERISTICS
-15
= 5.4V
2
LDO LOAD REGULATION
1
3
LDO CURRENT (mA)
TEMPERATURE (°C)
BATT CURRENT (A)
10
4
5
2
4 CELLS
3 CELLS
35
6
7
2 CELLS
3
60
8
9
10
85
4
-0.01
-0.02
-0.03
-0.04
-0.05
100
0.05
0.04
0.03
0.02
0.01
0.08
0.07
0.06
0.05
0.04
0.03
0.02
0.01
90
80
70
60
50
40
30
20
10
0
0
0
0.01
8
0
EFFICIENCY vs. CHARGE CURRENT
10
0.1
BATT VOLTAGE ERROR vs. VCTL
I
V
LDO
LDO
12 14 16
0.2 0.3 0.4 0.5
LDO LINE REGULATION
= 0
= 5.4V
CHARGE CURRENT (A)
V
0.1
BATT
VCTL/REFIN (%)
V
= 8V
BATT
V
IN
18 20 22
V
(V)
BATT
= 12V
4 CELLS
REFIN = 3.3V
NO LOAD
0.6 0.7 0.8 0.9 1.0
= 16V
1
24
26
28
10
11