Datasheet
3Maxim Integrated
Dual-Input Linear Chargers, Smart Power Selector
with Advanced Battery Temperature Monitoring
MAX8934A–MAX8934E
ELECTRICAL CHARACTERISTICS (continued)
(V
DC
= V
PEN1
= V
PEN2
= 5V, CEN = USUS = THMEN = GND, V
BATT
= 4V, V
THM
= 1.65V, USB, THMSW, CHG, DONE, OT, DOK,
UOK, FLT are unconnected, C
CT
= 0.068FF, T
A
= -40NC to +85NC, unless otherwise noted. Typical values are at T
A
= +25NC.) (Note 1)
PARAMETER CONDITIONS MIN TYP MAX UNITS
Thermal-Limit Gain I
SYS
reduction with die temperature (above +100NC) 5 %/C
V
L
Voltage I
VL
= 0 to 5mA, USB = unconnected 3 3.3 3.6 V
USB-TO-SYS PREREGULATOR
USB Operating Voltage Range 4.1 6.6 V
USB Withstand Voltage V
BATT
= V
SYS
= 0V 8 V
USB Undervoltage Threshold When V
UOK
goes low, V
USB
rising, 500mV hysteresis 3.95 4.0 4.05 V
USB Overvoltage Threshold When V
UOK
goes high, V
USB
rising, 360mV hysteresis 6.8 6.9 7.0 V
USB Operating Supply Current
I
SYS
= I
BATT
= 0mA, V
CEN
= V
PEN2
= 0V 1 2
mA
I
SYS
= I
BATT
= 0mA, V
CEN
= 5V, V
PEN2
= 0V 0.9 1.5
USB Suspend Current DC = unconnected, V
USB
= V
CEN
= V
USUS
= 5V 190 340 FA
USB to SYS On-Resistance DC unconnected, V
USB
= V
CEN
= 5V, I
SYS
= 400mA 0.22 0.33
I
USB-to-BATT Dropout Voltage
When SYS regulation and charging stops, V
USB
falling,
150mV hysteresis
10 50 90 mV
USB Current Limit
(See Tables 2a and 2b for Input
Source Control)
DC unconnected,
V
USB
= 5V, T
A
= +25NC
MAX8934D only,
R
PSET
= 2kI
1350
1500 1650
mA
V
PEN1
= 0V, V
PEN2
= 5V 450 475 500
V
PEN1
= V
PEN2
= 0V 80 95 100
SYS Regulation Voltage
DC unconnected, V
USB
= 6V, V
PEN2
= 5V, I
SYS
=
1mA to 400mA, V
CEN
= 5V
MAX8934A 5.2 5.3 5.4
V
MAX8934B/MAX8934C/
MAX8934E
4.29 4.35 4.4
DC unconnected, V
USB
= 6V, V
PEN2
= 5V, I
SYS
=
1mA to 1.2A, V
CEN
= 5V
MAX8934D 4.29 4.35 4.4
Input Limiter Soft-Start Time Input current ramp time 50 Fs
Thermal-Limit Temperature
Die temperature at when the charging current and input
current limits are reduced
100 NC
Thermal-Limit Gain I
SYS
reduction with die temperature (above +100NC) 5 %/NC
V
L
Voltage DC unconnected, V
USB
= 5V, I
VL
= 0 to 5mA 3 3.3 3.6 V
LDO LINEAR REGULATOR
LDO Output Voltage
DC unconnected, V
USB
= 5V, I
LDO
= 0mA 3.234 3.3 3.366
VV
DC
= 5V, USB unconnected, I
LDO
= 0mA 3.234 3.3 3.366
DC and USB unconnected, V
BATT
= 4V, I
LDO
= 0mA 3.234 3.3 3.366
LDO Load Regulation I
LDO
= 0 to 30mA 0.003 %/mA