Rainbow Electronics MAX8730 - Manual (Page 5)

MAX8730
Low-Cost Battery Charger
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ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1. V SRC = V ASNS = V CSSP = V CSSN = 18V, V BATT = V CSIP = V CSIN = 12V, V VCTL = V ICTL = 1.8V, MODE = float,
ACIN = 0, CLS = REF, REFON = LDO, INPON = LDO, RELTH = 2V. T A = 0°C to +85°C, unless otherwise noted. Typical values are at
T A = +25°C.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
DHI Resistance Low I DHI = -10mA 2 4 Ω
DHI Resistance High I DHI = 10mA 1 2 Ω
ERROR AMPLIFIERS
V C TL = 3.6V , V BAT T = 16.8V , M OD E = LD O 0.0625 0.125 0.250
GMV Loop Transconductance
V C TL = 3.6V , V BAT T = 12.6V , M OD E = FLOAT 0.0833 0.167 0.333
mA/V
GMI Loop Transconductance ICTL = 3.6V, V CSSP - V CSIN = 75mV 0.5 1 2 mA/V
GMS Loop Transconductance V CLS = 2.048V, V CSSP - V CSSN = 75mV 0.5 1 2 mA/V
CCI/CCS/CCV Clamp Voltage
1.1V < V CCV < 3.0V,
1.1V < V CCI < 3.0V,
1.1V < V CCS < 3.0V
150 300 600 mV
LOGIC LEVELS
MODE, REFON Input Low Voltage 0.5 V
MODE Input Middle Voltage 1.9 2.65 3.3 V
M OD E , RE FON Inp ut H i g h V ol tag e 3.4 V
MODE, REFON, INPON Input
Bias Current
MODE = 0 or 3.6V -2 +2 µA
V INPON rising 2.2 V
INPON Threshold
V INPON falling 0.8 V
ADAPTER DETECTION
ACOK Voltage Range 0 28 V
ACOK Sink Current V ACOK = 0.4V, ACIN = 1.5V 1 mA
ACOK Leakage Current V ACOK = 28V, ACIN = 2.5V 1 µA
BATTERY DETECTION
V MODE = V LDO +140
BATT Overvoltage Threshold
V VCTL = V LDO , BATT
rising; result with respect
to battery-set voltage
V MODE = FLOAT +100
mV
BATT Overvoltage Hysteresis 100 mV
RELTH Operating Voltage Range 0.9 2.6 V
RELTH Input Bias Current V RELTH = 0.9V to 2.6V -50 +50 nA
V RELTH = 0.9V 4.42 4.5 4.58 BATT Minimum Voltage Trip
Threshold
V
BATT
falling
V RELTH = 2.6V 12.77 13.0 13.23
V
PDS, PDL SWITCH CONTROL
Adapter-Absence Detect
Threshold
V ASNS - V BATT , V ASNS falling -300 -280 -240 mV
Adapter-Detect Threshold V ASNS - V BATT -140 -100 -60 mV
PDS Output Low Voltage Result with respect to SRC, I PDS = 0 -8 -10 -12 V
PDS/PDL Output High Voltage Result with respect to SRC, I PD_ = 0 -0.2 -0.5 V
PDS/PDL Turn-Off Current V PDS = V SRC - 2V, V SRC = 16V 6 12 mA