MAX17435ETG+ Maxim Integrated Products, MAX17435ETG+ Datasheet - Page 10

• Manufacturer Part Number: MAX17435ETG+
• Description: IC SMBUS BATT CHARGER 24TQFN
• Manufacturer: Maxim Integrated Products

Specifications of MAX17435ETG+

• 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: 24-TQFN Exposed Pad
• Product: Charge Management
• Operating Supply Voltage: 7 V to 26 V
• Supply Current: 1.5 mA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Charge Safety Timers: Yes
• Temperature Monitoring: Yes
• Uvlo Stop Threshold: 3.9 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

(Circuit of Figure 1, V
High-Frequency,
Low-Cost SMBus Chargers
10
-0.05
-0.10
-0.15
0.20
0.15
0.10
0.05
-0.5
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0
_____________________________________________________________________________________
0
0
V
IINP ERROR vs. SYSTEM CURRENT
INPUT CURRENT LIMIT = 3.584A
BATT
SYSTEM LOAD TRANSIENT
= 16.8V
V
BATT
ACCURACY AT 3.854A
5
1
(0A
CHARGE VOLTAGE
SYSTEM CURRENT (A)
CHARGE VOLTAGE (V)
= 12.6V
1ms/div
IN
3A
10
2
= 19V, V
0A)
V
BATT
15
3
MAX17435 toc10
CC
= 8.4V
= V
20
4
DD
I
1A/div
V
200mV/div
V
1V/div
I
1A/div
L
SYSLD
BATT
CC
= 5V, EN = V
-0.5
-0.1
-0.2
-0.3
-0.4
-0.5
-0.6
-0.7
3.0
2.5
2.0
1.5
1.0
0.5
0.3
0.2
0.1
0
0
Typical Operating Characteristics (continued)
3
0
V
CHARGE-OUTPUT SHORT CIRCUIT
BATT
CHARGER-CURRENT ERROR
CHARGER VOLTAGE ERROR
I
CHARGER
CC
= 16.8V
vs. CHARGER CURRENT
vs. BATTERY VOLTAGE
CHARGER CURRENT (A)
BATTERY VOLTAGE (V)
, T
8
2
A
I
I
= 4A
CHARGER
CHARGER
V
BATT
= +25NC, unless otherwise specified.)
20Fs/div
= 8.4V V
= 5A
= 3A
13
4
BATT
MAX17435 toc11
= 12.6V
18
6
V
5V/div
I
2A/div
0A
L
BATT
100
95
90
85
80
75
70
65
60
55
50
9
8
7
6
5
4
3
2
1
0
0
EFFICIENCY vs. CHARGE CURRENT
4 CELL
INPUT CURRENT-LIMIT SETTING (A)
CHARGER-CURRENT ERROR
1
3 CELL
vs. SMBus SETTING
BATTERY REMOVAL
(2, 3, AND 4 CELLS)
CHARGE CURRENT (A)
2
2
(V
BATT
100Fs/div
2 CELL
3
= 3V)
4
4
MAX17435 toc09
5
6
6
V
5V/div
V
5V/div
V
5V/div
I
1A/div
L
PDSL
BATT
DCIN