MAX1909ETI Maxim Integrated Products, MAX1909ETI Datasheet - Page 12

• Manufacturer Part Number: MAX1909ETI
• Description: Battery Management
• Manufacturer: Maxim Integrated Products

Specifications of MAX1909ETI

• Product: Charge Management
• Battery Type: Li-Ion, Li-Polymer, NiCd, NiMH, Lead Acid, Universal
• Operating Supply Voltage: 8 V to 28 V
• Supply Current: 2.7 mA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Package / Case: TQFN-28
• Charge Safety Timers: No
• Mounting Style: SMD/SMT
• Temperature Monitoring: No
• Uvlo Start Threshold: 9.18 V
• Uvlo Stop Threshold: 9.42 V
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Multichemistry Battery Chargers with Automatic
System Power Selector
(Circuit of Figure 2, V
12
______________________________________________________________________________________
DCIN
V
SYSTEM LOAD
PDL
AC ADAPTER INSERTION
PDS-PDL SWITCHOVER,
PDL-PDS SWITCHING,
BATTERY INSERTION
= 20V, charge current = 3A, 4 Li+ series cells, T
100μs/div
50μs/div
CONDITIONING MODE
WALL ADAPTER = 18V
MAX1909/MAX8725 toc15
MAX1909/MAX8725 toc17
V
PDS
V
PDL
Typical Operating Characteristics (continued)
20V
10V
20V
10V
20V
10V
0V
20V
15V
10V
5V
0V
15V
10V
5V
0V
V
V
V
V
V
V
V
V
V
V
PKDET
PKPRES
PDS
SYSTEM
BATT
PDL
WALLADAPTER
SYSTEMLOAD
PDS
PDL
, V
BATT
, V
PDS
A
= +25°C, unless otherwise noted.)
MAX8725 ONLY
WALL ADAPTER REMOVAL
PDS-PDL SWITCHOVER,
PDL-PDS SWITCHING,
BATTERY REMOVAL
V
PDL
500μs/div
10μs/div
CONDITIONING MODE
WALL ADAPTER = 18V
MAX1909/MAX8725 toc18
MAX1909/MAX8725 toc16
20V
15V
10V
5V
0V
15V
10V
5V
0V
20V
10V
20V
10V
0V
20V
10V
0V
V
V
V
V
V
V
V
V
V
V
V
PKPRES
SYSTEM
PDS
PDL
BATT
SYSTEMLOAD
PDS
WALLADAPTER
BATT
PDL
SYSTEMLOAD