MAX1647 Maxim, MAX1647 Datasheet - Page 2

• Manufacturer Part Number: MAX1647
• Description: Chemistry-Independent Battery Chargers
• Manufacturer: Maxim

ABSOLUTE MAXIMUM RATINGS
DCIN to AGND..........................................................-0.3V to 30V
DCIN to IOUT...........................................................-0.3V to 7.5V
BST to AGND ............................................................-0.3V to 36V
BST, DHI to LX ............................................................-0.3V to 6V
LX to AGND ..............................................................-0.3V to 30V
THM, CCI, CCV, DACV, REF,
DLO to AGND ................................................-0.3V to (VL + 0.3V)
VL, SEL, INT, SDA, SCL to AGND (MAX1647) ...........-0.3V to 6V
SETV, SETI to AGND (MAX1648)................................-0.3V to 6V
BATT, CS+ to AGND.................................................-0.3V to 20V
ELECTRICAL CHARACTERISTICS
(V
Chemistry-Independent
Battery Chargers
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
SUPPLY AND REFERENCE
SWITCHING REGULATOR
DCIN Input Voltage Range
DCIN Quiescent Current
VL Output Voltage
VL Load Regulation
VL AC_PRESENT Trip Point
REF Output Voltage
REF Overdrive Input Current
Oscillator Frequency
DHI Maximum Duty Cycle
DHI On-Resistance
DLO On-Resistance
BATT Input Current (Note 1)
CS Input Current (Note 1)
BATT, CS Input Voltage Range
CS to BATT Single-Count
Current-Sense Voltage
CS to BATT Full-Scale
Current-Sense Voltage
Voltage Accuracy
DCIN
_______________________________________________________________________________________
= 18V, V
PARAMETER
REF
= 4.096V, T
A
= 0°C to +85°C. Typical values are at T
7.5V < V
7.5V < V
I
MAX1647
0µA < I
High or low
High or low
VL < 3.2V, V
VL < 5.15V, V
VL < 3.2V, V
VL < 5.15V, V
MAX1647, SEL = open,
ChargingCurrent( ) = 0x0020
MAX1647, SEL = open,
ChargingCurrent( ) = 0x07F0;
MAX1648, V
MAX1647, ChargingVoltage( ) = 0x1060,
ChargingVoltage( ) = 0x3130; MAX1648,
V
LOAD
SETV
= 10mA
= 3.15V, V
SOURCE
DCIN
DCIN
SETI
BATT
CS
BATT
CS
< 28V, logic inputs = VL
< 28V, no load
= 12V
< 500µA
= 12V
= 1.024V
SETV
CONDITIONS
= 12V
= 12V
= 1.05V
PGND to AGND .....................................................-0.3V to +0.3V
SDA, INT Current ................................................................50mA
VL Current ...........................................................................50mA
Continuous Power Dissipation (T
Operating Temperature Range
Storage Temperature.........................................-60°C to +150°C
Lead Temperature (soldering, 10sec) .............................+300°C
16-Pin SO (derate 8.7mW/°C above +70°C).................696mW
20-Pin SSOP (derate 8mW/°C above +70°C) ...............640mW
MAX1647EAP, MAX1648ESE ...........................-40°C to +85°C
A
= +25°C, unless otherwise noted.)
-0.65
5.15
3.20
3.74
MIN
200
170
7.5
89
0
A
= +70°C)
TYP
2.94
250
350
170
185
5.4
3.9
93
4
4
4
6
1
1
MAX
5.65
5.15
4.07
0.65
100
700
300
500
400
200
28
14
19
6
7
5
5
UNITS
kHz
mA
mV
mV
mV
µA
µA
µA
%
Ω
Ω
%
V
V
V
V
V