MAX17085BETL+T Maxim Integrated Products, MAX17085BETL+T Datasheet - Page 13

• Manufacturer Part Number: MAX17085BETL+T
• Description: Battery Management Dual Main Step-Down Controller
• Manufacturer: Maxim Integrated Products

Specifications of MAX17085BETL+T

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

12.6V
2.110
2.108
2.106
2.104
2.102
2.100
2.098
2.096
2.094
1.5V
11V
19V
20V
20V
0V
0A
(Circuit of Figure 1, V
0
20V ADAPTER INPUT, 3-CELL BATTERY
3-CELL BATTERY
POWER-SOURCE SELECTOR SCHEME
BATTERY REMOVAL (V
V
REF
10
WHEN BATTERY IS PRESENT
vs. AMBIENT TEMPERATURE
AMBIENT TEMPERATURE (°C)
(ADAPTER REMOVAL)
20
30
100µs/div
10ms/div
Integrated Charger, Dual Main Step-Down
40
______________________________________________________________________________________
ADP
50
BATT
60
= V
MAX17085B toc13
MAX17085B toc10
= 11V)
Controllers, and Dual LDO Regulators
SYS
70
= 20V, V
80
V
5V/div
V
10V/div
PDSL
20V/div
V
10V/div
CC
1V/div
V
5V/div
DCIN
5V/div
IL
2A/div
BATT
SYSLD
ADAPTER
BATT
CHG
12.6V
12.6V
12.6V
BATT
1.5V
0A
0A
0V
0V
98
96
94
92
90
88
86
84
82
0
= 16.8V, LDO5 = V
19V ADAPTER INPUT
3-CELL BATTERY, 3A CHARGING CURRENT
20V ADAPTER INPUT, 3-CELL BATTERY
POWER-SOURCE SELECTOR SCHEME
Typical Operating Characteristics (continued)
1
WHEN BATTERY IS PRESENT
SYSTEM LOAD TRANSIENT
vs. CHARGING CURRENT
CHARGER EFFICIENCY
(ADAPTER INSERTION)
2
CHARGING CURRENT (A)
(0A
3
4-CELL
400µs/div
10ms/div
4A INPUT CURRENT LIMIT
3A
4
CC
3-CELL
0A )
5
V
ADAPTER
= 5V, LDO3 = 3.3V, T
6
2-CELL
MAX17085B toc11
MAX17085B toc14
= 20V
7
8
CC
1V/div
V
2V/div
I
2A/div
IL
2A/div
V
5V/div
V
10V/div
PDSL
20V/div
V
10V/div
SYSLD
BATT
BATT
SYSLD
ADAPTER
CHG
2.100
2.098
2.096
2.094
2.092
2.090
5.10
5.05
5.00
4.95
4.90
4.85
4.80
A
0V
0A
= +25°C, unless otherwise noted.)
4
0
3-CELL BATTERY
V
CHARGER OFF
SMPS5 AND SMPS3 OFF
LDO3 NO LOAD
CHARGER AND SMPSs ARE ALL ON WHEN
SWITCHING, ALL OFF WHEN NOT SWITCHING
CHARGER OUTPUT SHORT CIRCUIT
(SWITCHING AND NOT SWITCHING)
ADAPTER
20
8
LDO5 LOAD REGULATION
V
REF
= 19V
40
LOAD CURRENT (mA)
INPUT VOLTAGE (V)
12
LINE REGULATION
60
20µs/div
NOT SWITCHING
SWITCHING
16
80
20
100
MAX17085B toc12
24
120
140
28
13
V
5V/div
IL
2A/div
BATT
CHG