MAX1612 Datasheet, PDF (2/12 Pages) Maxim Integrated Products – Bridge-Battery Backup Controllers for Notebooks

Bridge-Battery Backup Controllers
for Notebooks
ABSOLUTE MAXIMUM RATINGS
LRI, ISET to GND....................................................-0.3V to +30V
LX to GND ..............................................................-0.3V to +14V
PGND to GND .......................................................-0.3V to +0.3V
BBATT, LRO, CCMD, DCMD, FULL, BBON,
LBO to GND ..........................................................-0.3V to +6V
CC, CD, LBI, FB to GND...........................-0.3V to (V_LRO + 0.3V)
FB, LBI, ISET, and BBATT Current......................................50mA
LRO Output Current ...........................................................50mA
Continuous Power Dissipation (T_A = +70°C)
QSOP (derate 8.30mW/°C above +70°C) .................... 667mW
Operating Temperature Range
MAX1612/MAX1613EEE ...................................-40°C to +85°C
Storage Temperature Range .............................-65°C to +160°C
Lead Temperature (soldering, 10sec) ............................ +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_LRI = V_ISET = 20V, CCMD = DCMD = BBON = LRO, V_BBATT = 3V, T_A = T_MIN to T_MAX, unless otherwise noted. Typical values are at
T_A = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNIT
Linear-Regulator Input Voltage
Range
MAX1612
V_LRI
MAX1613
5.7
28
V
4
28
Linear-Regulator Quiescent
Current
V _BBON ≥ 2V
I_LRI
V _DCMD = 0, R _BBON = 1MΩ to GND
(boost converter on)
18
28
µA
42
58
Linear-Regulator Output Voltage V_LRO
0 ≤ I_LRO ≤ 10mA
5.7V ≤ V_LRI ≤ 28V
(MAX1612)
4V ≤ V_LRI ≤ 28V
(MAX1613)
4.7
5.0
5.3
V
3.1
3.3
3.5
Linear-Regulator Output
Undervoltage Lockout
Threshold
V_UVLO LRO rising hysteresis = 200mV
2.65
2.97 V
BATTERY CHARGER
ISET Leakage Current
I_ISET(LEAK) V_ISET = 28V, V_BBATT = 0
0.3
5
µA
BBATT Leakage Current
I_BBATT(LEAK) V_ISET = 0 or 28V, V_BBATT = 6V
-5
5
µA
Charge-Switch On Voltage
I_ISET = 10mA, V _CCMD = 0, V_BBATT = 2V
0.5
1
1.3
V
Charge-Switch Loss Current
CCMD = GND, I_ISET = 10mA, V_BBATT = 2V,
%loss = [(I_ISET - I_BBATT) / I_ISET) · 100%
0.1
5
%
LOW-BATTERY COMPARATOR
LBI Falling Trip Voltage
LBI Rising Trip Voltage
LBI Input Current
LBO, FULL Output Leakage
Current
V_LBTL
V_LBTH
I_LBI
V_LBI = 1.9V
I_LBO, I_FULL V _LBO = V_FULL = 5.5V
1.76
1.8
1.84
V
1.955
2
2.045 V
0.2
10
nA
1
µA
LBO, FULL Output Voltage Low
I_SINK = 1mA
0.4
V
LBI Comparator Response Time
t_PD
Overdrive = 100mV
20
µs
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