MAX1667 Datasheet, PDF (2/28 Pages) Maxim Integrated Products – Chemistry-Independent, Level 2 Smart Battery Charger

Chemistry-Independent,
Level 2 Smart Battery Charger
ABSOLUTE MAXIMUM RATINGS
DCIN to AGND .......................................................-0.3V to +30V
BST to AGND..........................................................-0.3V to +36V
BST, DHI to LX..........................................................-0.3V to +6V
LX, IOUT 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 ............................-0.3V to +6V
BATT, CS+ to AGND ..............................................-0.3V to +20V
PGND to AGND .....................................................-0.3V to +0.3V
SDA, INT Current ................................................................50mA
VL Current ...........................................................................50mA
Continuous Power Dissipation (T_A = +70°C)
SSOP (derate 8mW/°C above +70°C) ..........................640mW
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-60°C to +150°C
Lead Temperature (soldering, 10sec) .............................+300°C
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.
ELECTRICAL CHARACTERISTICS
(V_DCIN = 18V, internal reference, 1µF capacitor at REF, 1µF capacitor at VL, T_A = 0°C to +85°C, unless otherwise noted. Typical values
are at T_A = +25°C, unless otherwise noted.)
PARAMETER
SUPPLY AND REFERENCE
DCIN Input Voltage Range
DCIN Quiescent Current
VL Output Voltage
VL Load Regulation
VL AC_PRESENT Trip Point
REF Output Voltage
SWITCHING REGULATOR
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
CONDITIONS
7.5V < V_DCIN < 28V, logic inputs = VL
7.5V < V_DCIN < 28V, no load
I_LOAD = 0 to 10mA
0 < I_SOURCE < 500µA
Not in dropout
In dropout
High or low
High or low
VL < 3.2V, V_BATT = 12V
VL > 5.15V, V_BATT = 12V
VL < 3.2V, V_CS = 12V
VL > 5.15V, V_CS = 12V
ChargingCurrent() = 0x0080 (128mA)
SEL = VL (4A),
ChargingCurrent() = 0x0F80 (3968mA)
MIN TYP MAX UNITS
7.5
28
V
4
6
mA
5.15
5.4
5.65
V
100
mV
3.20
4
5.15
V
4.055 4.096 4.137
V
200
250
300
kHz
96.5 97.7
%
4
7
Ω
5
8
Ω
1
5
µA
350
500
1
5
µA
170
400
0
19
V
5
mV
145
160
175
mV
Voltage Accuracy
ChargingVoltage()
TA = +25°C
-0.8
= 0x3130 (12,592mV)
and
0x41A0 (16,800mV)
TA = TMIN to TMAX
-1.0
ChargingVoltage()
TA = +25°C
-1.0
= 0x1060 (4192mV)
and
0x20D0 (8400mV)
TA = TMIN to TMAX
-3.0
0.8
1.0
%
1.0
3.0
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