MAX1909ETI Maxim Integrated Products, MAX1909ETI Datasheet - Page 2

• 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
ABSOLUTE MAXIMUM RATINGS
DCIN, CSSP, CSSN, SRC, ACOK to GND..............-0.3V to +30V
DHIV ........................................................…SRC + 0.3, SRC - 6V
DHI, PDL, PDS to GND ...............................-0.3V to (V
BATT, CSIP, CSIN to GND .....................................-0.3V to +20V
CSIP to CSIN or CSSP to CSSN or PGND to GND ...-0.3V to +0.3V
CCI, CCS, CCV, DLO, IINP, REF,
DLOV, VCTL, ICTL, MODE, CLS, LDO,
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 1, V
REF, GND = PGND = 0, PKPRES = GND, LDO = DLOV, T
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
2
CHARGE VOLTAGE REGULATION
VCTL Range
Battery Regulation Voltage
Accuracy
V VCTL Default Threshold
VCTL Input Bias Current
CHARGE-CURRENT REGULATION
ICTL Range
CSIP-to-CSIN Full-Scale Current-
Sense Voltage
Charge-Current Accuracy
ACIN to GND ........................................-0.3V to (V
PKPRES to GND ...................................................-0.3V to +6V
_______________________________________________________________________________________
PARAMETER
DCIN
= V
CSSP
= V
CSSN
SYMBOL
= 18V, V
V
not including VCTL resistor tolerances
V
VCTL resistor tolerances
V
resistor tolerances of 1%
V
threshold of 4.2V/cell)
V VCTL rising
V VCTL = 3V
V DCIN = 0, V VCTL = 5V
MAX1909
MAX8725
MAX1909: V
resistor tolerances)
MAX8725: V
resistor tolerances)
MAX1909: V
V
resistor tolerances)
MAX1909: V
resistor tolerances)
MAX8725: V
ICTL resistor tolerances)
VCTL
VCTL
VCTL
VCTL
ICTL
LDO
BATT
SRC
+ 0.3V)
= 3.2V x 0.5 (not including ICTL
A
= 3.6V (3 or 4 cells);
= 3.6V/20 (3 or 4 cells); not including
= 3.6V (3 or 4 cells); including VCTL
= V LDO (3 or 4 cells, default
= V
+ 0.3)
= 0°C to +85°C, unless otherwise noted. Typical values are at T
CSIP
ICTL
ICTL
ICTL
ICTL
ICTL
= V
CONDITIONS
= 3.6V (not including ICTL
= 3.2V (not including ICTL
= 3.6V x 0.5, MAX8725:
= 0.9V (not including ICTL
= 0.18V (not including
CSIN
DLOV to LDO.........................................................-0.3V to +0.3V
DLO to PGND ..........................................-0.3V to (DLOV + 0.3V)
LDO Short-Circuit Current...................................................50mA
Continuous Power Dissipation (T
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-60°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
28-Pin TQFN (derate 20.8mW/°C above +70°C) .......1666mW
= 12V, V
VCTL
= V
ICTL
= 1.8V, MODE = float, ACIN = 0, CLS =
69.37
MIN
-0.8
-0.8
-1.0
-0.5
-7.5
-7.5
-30
4.1
-5
-5
0
0
0
0
0
A
= +70°C)
75.00
TYP
80.63
MAX
+0.8
+0.8
+1.0
+0.5
+7.5
+7.5
+30
3.6
4.3
2.5
3.6
3.2
+5
+5
12
A
= +25°C.)
UNITS
mV
µA
%
%
V
V
V