MAX1909ETI+ Maxim Integrated Products, MAX1909ETI+ Datasheet - Page 16

• 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 3. Functional Diagram
16
______________________________________________________________________________________
PKPRES
MODE
VCTL
CSSN
CSSP
CSIN
BATT
CSIP
GND
ICTL
CCS
CCV
CLS
CCI
3.0V/CELL
GND
MAX1909 ONLY
MAX8725 ONLY
BATT_UV
0.9 * LDO
DCIN
BATT
0.8V
BATTERY VOLTAGE-
9R
SHIFTER
SHIFTER
LEVEL
LEVEL
CELL SELECT
LOGIC AND
DIVIDER
REF
R
R
GMS
GMI
PACK_ON
ICTLOK
GMV
SRDY
LOGIC
CHG
LVC
MODE
MAX1909
MAX8725
RDY
CHG
REGULATOR
2.048V
LINEAR
5.4V
SWITCH LOGIC
CONVERTER
DC-DC
Gm
SRC
REFERENCE
4.2235V
DCIN
LDO
REF
ACIN
ACOK
SRC
PDS
PDL
IINP
DHI
DHIV
DLOV
DLO
PGND