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MAX1535A Datasheet, PDF (4/39 Pages) Maxim Integrated Products – Highly Integrated Level 2 SMBus Battery Charger
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Highly Integrated Level 2 SMBus
Battery Charger
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1. VDCIN = VCSSP = VCSSN = 18V, VBATT = VCSIP = VCSIN = 12V, VDD = 3.3V, ACIN = PGND = GND, LDO = DLOV,
VMAX = IMAX = REF, CLDO = 1µF, CDHIV = 0.1µF, CREF = 1µF, TA = 0°C to +85°C. Typical values are at TA = +25°C, unless other-
wise noted.)
PARAMETER
SWITCHING REGULATOR
Off-Time
DLOV Supply Current
Maximum Discontinuous Mode
Peak Current
CONDITIONS
VBATT = 16.0, VDCIN = 21.0
VBATT = 19.0, VDCIN = 21.0
ChargerMode() = 0x0001
MIN TYP MAX UNITS
540
600
660
ns
230
270
310
5
10
µA
0.5
A
Battery Undervoltage Charge
Current
VBATT = 2.6V per cell
DHIV Output Voltage
DHIV Sink Current
With respect to SRC
DHI On-Resistance Low
DHI On-Resistance High
DLO On-Resistance High
DLO On-Resistance Low
ERROR AMPLIFIERS
GMV Transconductance
GMI Transconductance
GMS Transconductance
CCI Clamp Voltage
CCV Clamp Voltage
CCS Clamp Voltage
ACOK
ACOK Input Voltage Range
VDHI = VDHIV, IDHI = -10mA
VDHI = VSRC, IDHI = 10mA
VDLOV = 4.5V, IDLO = 100mA
VDLOV = 4.5V, IDLO = -100mA
ChargeVoltage () = 0x41A0, VBATT = 16.8V
ChargeCurrent () = 0x1F80, VCSIP - VCSIN = 80.64mV
InputCurrent () = 0x1580, VCSSP - VCSSN = 110.08mV
0.25V < VCCI < 2.0V
0.25V < VCCV < 2.0V
0.25V < VCCS < 2.0V
ACOK Sink Current
ACOK Leakage Current
PDS, PDL SWITCH CONTROL
PDS Switch Turn-Off Threshold
V ACOK = 0.4V, ACIN = 1.5V
V ACOK = 28V, ACIN = 2.5V
DCIN with respect to BATT, DCIN falling
PDL Switch Turn-On Threshold
PDS Switch Threshold Hysteresis
PDL Switch Threshold Hysteresis
DCIN with respect to BATT, DCIN falling
DCIN with respect to BATT
DCIN with respect to BATT
PDS Output Low Voltage, PDS
Below SRC
IPDS = 0V
PDS Turn-On Current
PDS Turn-Off Current
PDL Turn-On Resistance
PDL Turn-Off Current
PDS = SRC
VPDS = VSRC - 2V, VDCIN = 16V
PDL = GND
VCSSN - VPDL = 1.5V
PDL and PDS Transition Delay
Time
PDS and PDL are unloaded
128
mA
-4.5 -5.0 -5.5
V
10
mA
4
7
Ω
1
3
Ω
4
7
Ω
1
3
Ω
0.0625
0.5
0.5
150
150
150
0.1250
1
1
300
300
300
0.2500
2
2
600
600
600
µA/mV
µA/mV
µA/mV
mV
mV
mV
0
28
V
1
mA
1
µA
50
100
150
mV
50
100
150
mV
200
mV
200
mV
8
10
12
V
6
12
mA
10
50
mA
50
100
150
kΩ
6
12
mA
4
10
15
µs
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