Rainbow Electronics MAX8922L User Manual
Page 2
MAX8922L
30V Li+ Linear Battery Charger
with GSM Test Mode in 3mm x 2mm TDFN
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
IN
= 5V, V
BAT
= 4V, V
EN/SET
= 0V, T
A
= -40°C to +85°C, typical values are at T
A
= +25°C, unless otherwise noted.) (Note 1)
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.
IN to GND ..............................................................-0.3V to +30V
BAT, CHG, EN/SET, POK, SETI,
MIN, LDO, TEST to GND ......................................-0.3V to +6V
Continuous Power Dissipation (T
A
= +70°C)
10-Pin (3mm x 2mm) TDFN
(derate 14.9mW/°C above +70°C) ..........................1188.7mW
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
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
IN
Input Voltage Range
0
28
V
Input Voltage Operating Range
(Note 2)
4.45
7
V
Input Undervoltage Threshold
(UVLO)
V
IN
rising, 500mV hysteresis (typ)
3.80
3.90
4.00
V
Input Overvoltage Threshold
(OVP)
V
IN
rising, 200mV hysteresis (typ)
7.2
7.5
7.8
V
I
BAT
= 0mA, charge mode
700
1300
V
EN/SET
= 5V, standby mode
250
440
Input Supply Current
V
IN
= V
BAT
, shutdown mode
200
µA
IN-to-BAT On-Resistance
V
IN
= 4.15V, V
BAT
= 4V
0.35
Ω
V
IN
rising
120
250
500
IN-to-BAT Comparator Threshold
V
IN
falling
100
mV
BAT
T
A
= +25°C
4.179
4.2
4.221
BAT Regulation Voltage
I
BAT
= 100mA
T
A
= -40°C to +85°C
4.158
4.2
4.242
V
V
BAT
rising
4.67
Battery Removal Detection
Threshold
Hysteresis
0.2
V
Default fast-charge current, V
BAT
= 3.5V
365
400
435
EN/SET = one pulse with low > 4ms, R
SETI
= 3k
Ω,
one-pulse mode, V
BAT
= 3.5V
460
500
540
EN/SET = two pulses with low > 4ms, V
BAT
= 3.5V
80
90
100
Charging Current
EN/SET = three pulses with low > 4ms,
V
BAT
= 3.5V (Note 3)
2350
mA
Soft-Start Time
Ramp time to fast-charge current
250
µs
BAT Precharge Threshold
V
BAT
rising, 300mV hysteresis (typ)
2.5
V
Precharge Current
80
mA
BAT Leakage Current
V
IN
= 0V, V
BAT
= 4.2V
1
5
µA