MAX1667 Datasheet, PDF (3/28 Pages) Maxim Integrated Products – Chemistry-Independent, Level 2 Smart Battery Charger

Chemistry-Independent,
Level 2 Smart Battery Charger
ELECTRICAL CHARACTERISTICS (continued)
(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
CONDITIONS
MIN TYP MAX UNITS
ERROR AMPLIFIERS
GMV Amplifier Transconductance
1.4
mA/V
GMI Amplifier Transconductance
0.2
mA/V
GMV Amplifier Maximum
Output Current
±80
µA
GMI Amplifier Maximum
Output Current
±200
µA
CCV Clamp Voltage with
Respect to CCI
1.1V < V_CCI < 3.5V
25
80
200
mV
CCI Clamp Voltage with
Respect to CCV
1.1V < V_CCV < 3.5V
25
80
200
mV
TRIP POINTS AND LINEAR CURRENT SOURCES
BATT POWER_FAIL Threshold
BATT POWER_FAIL Threshold
Hysteresis
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
IOUT Output Current
BATT rising
THM falling
THM falling
THM falling
THM falling
V_IOUT = 0
93
95
97
% of
V_DCIN
1
% of
V_DCIN
89
91
93
% of
V_REF
74
75.5
77
% of
V_REF
22
23.5
25
% of
V_REF
3
4.5
6
% of
V_REF
0.5
% of
V_DCIN
ChargingCurrent() = 0x0001
to 0x007F (127mA)
5
7
9
mA
ChargingCurrent() = 0x0000
10
µA
V_IOUT = 17V, ChargingCurrent() = 0x0001
to 0x007F (127mA)
5
mA
IOUT Leakage Current
V_DCIN = 0, V_IOUT = 20V
CURRENT- AND VOLTAGE-SETTING DACs
CDAC Current-Setting DAC Resolution Guaranteed monotonic
VDAC Voltage-Setting DAC Resolution Guaranteed monotonic
LOGIC LEVELS
SDA, SCL Input Voltage Low
SDA, SCL Input Voltage High
SDA, SCL Input Bias Current
SDA Output Low Sink Current
V_SDA = 0.6V
10
µA
5
Bits
11
Bits
0.8
V
2.2
V
-1
1
µA
6
mA
Note 1: When DCIN is less than 4V, VL is less than 3.2V, causing the battery current to be typically 2µA (CS plus BATT input
current).
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