MAX1535A Datasheet, PDF (7/39 Pages) Maxim Integrated Products – Highly Integrated Level 2 SMBus Battery Charger

Highly Integrated Level 2 SMBus
Battery Charger
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1. V_DCIN = V_CSSP = V_CSSN = 18V, V_BATT = V_CSIP = V_CSIN = 12V, V_DD = 3.3V, ACIN = PGND = GND, LDO = DLOV,
VMAX = IMAX = REF, C_LDO = 1µF, C_DHIV = 0.1µF, C_REF = 1µF, T_A = -40°C to +85°C, unless otherwise noted.) (Note 2)
PARAMETER
CONDITIONS
CSSP/CSSN Input Voltage Range
CSSP/CSSN Input Current
V_CSSP = V_CSSN = V_DCIN > 8.0V
SUPPLY AND LINEAR REGULATOR
DCIN Input Voltage Range
DCIN Undervoltage Lockout Trip ^{DCIN falling}
Point
DCIN rising
DCIN Quiescent Current
BATT Input Current
LDO Output Voltage
LDO Load Regulation
8V < V_DCIN < 28V
V_BATT = 2V to 19V, V_DCIN > V_BATT + 0.3V
8V < V_DCIN < 28V, no load
0 < I_LDO < 10mA
LDO Undervoltage Lockout Trip
Point
V_DCIN = 8V
V_DD Range
V_DD Quiescent Current
REFERENCE
V_DCIN < 6V, V_DD = 5.5V, V_SCL = V_SDA = 5.5V
REF Output Voltage
0 < I_REF < 500µA
REF Undervoltage Lockout Trip
Point
REF falling
TRIP POINTS
BATT POWER_FAIL Threshold V_DCIN falling
BATT POWER_FAIL Threshold
Hysteresis
ACIN Threshold
ACIN rising
ACIN Threshold Hysteresis
SWITCHING REGULATOR
Off-Time
DLOV Supply Current
V_BATT = 16.0, V_DCIN = 21.0
V_BATT = 19.0, V_DCIN = 21.0
ChargerMode() = 0x0001
Battery Undervoltage Charge
Current
V_BATT = 2.6V per cell
DHIV Output Voltage
With respect to SRC
DHIV Sink Current
DHI On-Resistance Low
DHI On-Resistance High
DLO On-Resistance High
DLO On-Resistance Low
ERROR AMPLIFIERS
V_DHI = V_DHIV, I_DHI = -10mA
V_DHI = V_SRC, I_DHI = 10mA
V_DLOV = 4.5V, I_DLO = 100mA
V_DLOV = 4.5V, I_DLO = -100mA
GMV Transconductance
ChargeVoltage() = 0x41A0, V_BATT = 16.8V
MIN TYP MAX UNITS
8
28
V
800
µA
8
28
V
7.0
V
7.85
8
mA
800
µA
5.15
5.65
V
100
mV
3.00
5.35
V
2.7
5.5
V
27
µA
4.035
4.157
V
3.9
V
60
90
1.966
5
540
230
64
-4.4
10
0.0625
160
mV
310
mV
2.129
V
35
mV
660
ns
310
10
µA
192
mA
-5.5
V
mA
7
Ω
3
Ω
7
Ω
3
Ω
0.2500 µA/mV
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