MAX1909ETI+ Maxim Integrated Products, MAX1909ETI+ Datasheet - Page 14

• Manufacturer Part Number: MAX1909ETI+
• Description: IC CHARGER BATTERY 28-TQFN
• Manufacturer: Maxim Integrated Products

Specifications of MAX1909ETI+

• 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
• Product: Charge Management
• Operating Supply Voltage: 8 V to 28 V
• Supply Current: 2.7 mA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• 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
Figure 1. Typical Operating Circuit Demonstrating Hardwired Control
14
OUTPUT VOLTAGE: 12.6V
______________________________________________________________________________________
CHARGE I LIMIT: 3.0A
AC ADAPTER
SYSTEM
HOST
TO
OUTPUT
GND
590kΩ
1%
R6
LDO
LDO
R9
10kΩ
196kΩ
R8
1M
1%
R7
LDO
Ω
R5
10kΩ
C11
0.1μF
D4
LDO
(INPUT I LIMIT: 7.5A)
0.01μF
C5
1μF
C9
C22
1μF
100kΩ
R4
P3
REF
C10
0.01μF
0.1μF
PDS
SRC
DCIN
VCTL
ICTL
ACIN
MODE
CLS
ACOK
PKPRES (MAX8725 ONLY)
CCV
CCI
CCS
CSSP
MAX1909
MAX8725
0.01Ω
REF
RS1
C12
1μF
CSSN
PGND
DLOV
DHIV
CSIP
CSIN
BATT
GND
LDO
DLO
PDL
DHI
0.1μF
SRC
C13
1μF
C17
0.1μF
N1
0.015Ω
R13
33Ω
PGND
C16
1μF
P1
RS2
C4
22μF
L1
10μH
GND
SYSTEM LOAD
C1
22μF
TO
BATT +
TEMP
BATT -
BATTERY
P2