MAX1551EZK Datasheet, PDF (2/8 Pages) Maxim Integrated Products – SOT23 Dual-Input USB/AC Adapter 1-Cell Li Battery Chargers

MAX1551/MAX1555
SOT23 Dual-Input USB/AC Adapter 1-Cell Li+
Battery Chargers
ABSOLUTE MAXIMUM RATINGS
DC to GND......................................................................0 to +8V
DC to BAT .......................................................................0 to +7V
BAT, CHG, POK, USB to GND .................................-0.3V to +7V
Continuous Power Dissipation (T_A = +70°C)
5-Pin Thin SOT23 (derate 9.1mW/°C above +70°C) ....727mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature Range ............................-40°C to +150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+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_DC = 5V, V_USB = 0, I_BAT = 0, C_BAT = 1µF, T_A = 0°C to +85°C, unless otherwise noted.)
PARAMETER
CONDITIONS
DC
DC Voltage Range
DC to BAT Voltage Range
(Note 1)
DC Undervoltage Lockout
Threshold
Input rising, 430mV hysteresis, V_BAT = 3V (Note 1)
DC Supply Current
DC to BAT On-Resistance
V_DC = 3.7V, V_BAT = 3.6V
DC to BAT Dropout Voltage
When charging stops, V_BAT = 4V,
DC falling, 200mV hysteresis
USB
USB Voltage Range
(Note 1)
USB Undervoltage Threshold
USB Supply Current
USB to BAT On-Resistance
Input rising, 430mV hysteresis, V_DC = 0,
V_BAT = 3V (Note 1)
V_USB = 5V, V_DC = 0
V_USB = 3.7V, V_BAT = 3.6V, V_DC = 0
USB to BAT Dropout Voltage
When charging stops, V_BAT = 4V,
USB falling, 200mV hysteresis, V_DC = 0
BAT
BAT Regulation Voltage
V_DC or V_USB = 5V
DC Charging Current
V_BAT = 3.3V, V_USB = 0, V_DC = 5V
USB Charging Current
V_BAT = 3.3V, V_DC = 0, V_USB = 5V
BAT Prequal Threshold
V_BAT rising, 100mV hysteresis
Prequalification Charging Current V_BAT = 2.8V
BAT Leakage Current
V_DC = V_USB = 0, V_BAT = 4.2V
POK, CHG, AND THERMAL LIMIT
CHG Threshold
Charge current where CHG goes high,
I_BAT falling, 50mA hysteresis
CHG, POK Logic-Low Output
CHG, POK Leakage Current
I_CHG, I_POK = 10mA
V_CHG, V_POK = 6V, T_A = +25°C
Thermal-Limit Temperature
Charge current reduced by 17mA/°C above this
temperature
MIN TYP MAX UNITS
3.7
7.0
V
0.1
6.0
V
3.75 3.95 4.15
V
1.75
3
mA
1
2
Ω
30
60
90
mV
3.7
6.0
V
3.75 3.95 4.15
V
1.65
3
mA
2
4
Ω
30
60
90
mV
4.158 4.2 4.242
V
220
280
340
mA
80
90
100
mA
2.9
3
3.1
V
20
40
80
mA
5
µA
25
50
100
mA
150
300
mV
0.001
1
µA
+110
°C
2
Maxim Integrated