Datasheet

MAX8903A–E/G/H/J/N/Y
2A 1-Cell Li+ DC-DC Chargers
for USB and Adapter Power
5
Maxim Integrated
PARAMETER CONDITIONS MIN TYP MAX UNITS
THERMISTOR MONITOR
THM Threshold, Hot When charging is suspended, 1% hysteresis
0.27 x
V
VL
0.28 x
V
VL
0.29 x
V
VL
V
THM Threshold, Cold When charging is suspended, 1% hysteresis
0.73 x
V
VL
0.74 x
V
VL
0.75 x
V
VL
V
THM Threshold, Disabled THM function is disabled below this voltage
0.0254
x V
VL
0.03 x
V
VL
0.036 x
V
VL
V
THM Threshold DC, USB Enable MAX8903B/MAX8903E/MAX8903G
0.83 x
V
VL
0.87 x
V
VL
0.91 x
V
VL
V
THM = GND or VL;
T
A
= +25°C
-0.100 ±0.001 +0.200
MAX8903A/C/D/H/J/N/Y
THM = GND or VL;
T
A
= +85°C
±0.010
THM Input Leakage
MAX8903B/E/G
THM = GND or VL;
T
A
= -40°C to +85°C
-0.200 ±0.001 +0.200
µA
THERMAL SHUTDOWN, VL, AND LOGIC I/O: CHG, FLT, DOK, UOK, DCM, CEN, USUS, IUSB
High level 1.3
Low level 0.4
V
Logic-Input Thresholds
(DCM, CEN, USUS, IUSB)
Hysteresis 50 mV
T
A
= +25°C -1.000 ±0.001 +1.000
V
INPUT
= 0V to 5.5V
(MAX8903A/C/D/H/J/N/Y)
T
A
= +85°C ±0.010
Logic-Input Leakage Current
(CEN, USUS, IUSB)
V
INPUT
= 0V to 5.5V
(MAX8903B/E/G)
T
A
= -40°C to +85°C -0.200 ±0.001 +0.200
µA
T
A
= +25°C 0.001 1
Logic-Input Leakage Current
(DCM)
V
DCM
= 0V to 16V
V
DC
= 16V
T
A
= +85°C 0.01
µA
Sinking 1mA 8 50
Logic Output Voltage, Low
(CHG, FLT, DOK, UOK)
Sinking 10mA 80
mV
T
A
= +25°C 0.001 1
Open-Drain Output Leakage
C ur rent, Hi g h (CHG , FLT, DOK, UOK)
V
OUT
= 5.5V
T
A
= +85°C 0.01
µA
ELECTRICAL CHARACTERISTICS (continued)
(V
DC
= V
USB
= 5V, V
BAT
= 4V, circuit of Figure 2, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
A
= +25°C.)
(Note 1)