MAX1667 Maxim, MAX1667 Datasheet - Page 4

• Manufacturer Part Number: MAX1667
• Description: Chemistry-Independent / Level 2 Smart Battery Charger
• Manufacturer: Maxim

Chemistry-Independent,
Level 2 Smart Battery Charger
ELECTRICAL CHARACTERISTICS
(V
are at T
4
SUPPLY AND REFERENCE
DCIN Quiescent Current
VL Output Voltage
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)
CS to BATT Full-Scale
Current-Sense Voltage
Voltage Accuracy
TRIP POINTS AND LINEAR CURRENT SOURCES
THM THERMISTOR_OR
Overrange Trip Point
THM THERMISTOR_COLD
Trip Point
THM THERMISTOR_HOT
Trip Point
THM THERMISTOR_UR
Underrange Trip Point
THM THERMISTOR_OR, _COLD,
_HOT, _UR Trip Point Hysteresis
LOGIC LEVELS
SDA, SCL Input Voltage Low
SDA, SCL Input Voltage High
SDA, SCL Input Bias Current
SDA Output Low Sink Current
DCIN
_______________________________________________________________________________________
= 18V, internal reference, 1µF capacitor at REF, 1µF capacitor at VL, T
A
= +25°C. Limits over this temperature range are guaranteed by design.)
PARAMETER
7.5V < V
7.5V < V
0 < I
Not in dropout
In dropout
High or low
High or low
VL < 3.2V, V
VL < 3.2V, V
V
ChargingCurrent() = 0x0F80 (128mA)
ChargingVoltage() = 0x3130 (12,592mV),
ChargingVoltage() = 0x41A0 (16,800mV)
ChargingVoltage() = 0x1060 (4192mV),
ChargingVoltage() = 0x20D0 (8400mV)
THM falling
THM falling
THM falling
THM falling
V
SEL
SDA
SOURCE
= VL,
= 0.6V
DCIN
DCIN
BATT
CS
< 500µA
< 28V, logic inputs = VL
< 28V, no load
= 12V
CONDITIONS
= 12V
A
= -40°C to +85°C, unless otherwise noted. Typical values
4.055
5.15
96.5
88.5
73.5
21.5
MIN
200
145
-1.0
-3.0
2.5
2.2
-1
6
TYP
250
160
5.4
4
4
5
1
4.137
MAX
5.65
93.5
77.5
25.5
310
175
1.0
3.0
6.5
0.5
6
7
8
5
5
1
UNITS
V
V
V
V
% of
% of
% of
% of
kHz
mA
mA
mV
µA
µA
µA
%
%
REF
REF
REF
REF
%
Ω
Ω
V
V
V
V