MAX1538ETI+T Maxim Integrated Products, MAX1538ETI+T Datasheet - Page 8

• Manufacturer Part Number: MAX1538ETI+T
• Description: IC PWR SOURCE SELECTOR 28-TQFN
• Manufacturer: Maxim Integrated Products

Specifications of MAX1538ETI+T

• Function: Dual Battery Controller
• Battery Type: All Battery Types
• Voltage - Supply: 4.75 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

Power-Source Selector for
Dual-Battery Systems
(Circuit of Figure 1. T
8
_______________________________________________________________________________________
A: CONTACT BOUNCE
B: BATTERY INSERTION BLANKING TIME = 22ms
A
SYSTEM LOAD = 3A
V
BATB
= +25°C, unless otherwise noted.)
BATTERY REMOVAL TIMING
REMOVAL
(t
ADAPTER
5 x MINV
TIMING)
ADP
= 16.8V
t
A
BATTERY INSERTION
MINV
B
FOR
5.00ms/div
4.00µs/div
t
TRANS
SYSTEM LOAD = 3A
V
V
BATA
BATTERY B
REMOVED
BATA
MAX1538 toc06
MAX1538 toc08
= 16.8V
= 10V
Typical Operating Characteristics (continued)
INDUCTIVE KICK
10V
0V
0V
10V
10V
0V
20V
10V
10.2V
10V
9.8V
9.6V
10V
0V
10V
0V
0V
SOURCE SELECTION CHANGE
V
V
(10V/div)
V
(10V/div)
V
V
V
V
V
V
(10V/div)
BATA
OUT0
DISB
DISA
EXTLD
EXTLD
DISB
DISA
OUT0
2.00µs/div
t
TRANS
NO CAPACITOR
AT BATB
MAX1538 toc10
SYSTEM LOAD = 3A
V
INDUCTIVE KICK
BATA
SOURCE SELECTION CHANGE
10V
0V
5V
0V
10V
20V
10V
= 10V
BATTERY REMOVAL
V
V
V
(10V/div)
V
(10V/div)
V
AC-COUPLED
(5V/div)
BATSEL
OUT0
DISB
DISA
BATB
5.00ms/div
2.00µs/div
CONTACT BOUNCE
t
TRANS
V
C
BATB
BATB
MAX1538 toc07
MAX1538 toc09
= 16.8V
= 1µF
10V
0V
0V
10V
10V
0V
20V
10V
10V
0V
5V
0V
10V
20V
10V
V
V
(10V/div)
V
(10V/div)
V
V
V
V
V
(10V/div)
V
(10V/div)
V
AC-COUPLED
(5V/div)
BATA
OUT0
DISB
DISA
EXTLD
BATSEL
OUT0
DISB
DISA
BATB