Rainbow Electronics MAX8730 - Manual (Page 2)

MAX8730
Low-Cost Battery Charger
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(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.)
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.
CSSP, SRC, ACOK, ASNS, DHIV, BATT,
CSIP to GND.......................................................-0.3V to +30V
CSIP to CSIN or CSSP to CSSN ............................-0.3V to +0.3V
DHIV to SRC .................................................-6V to (SRC + 0.3V)
DHI to DHIV ...............................................-0.3V to (SRC + 0.3V)
PDL, PDS to GND ........................................-0.3V to (SRC + 0.3)
CCI, CCS, CCV, IINP, SWREF, REF,
MODE, ACIN to GND.............................-0.3V to (LDO + 0.3V)
RELTH, VCTL, ICTL, REFON, CLS, LDO,
INPON to GND .....................................................-0.3V to +6V
LDO Short-Circuit Current...................................................50mA
Continuous Power Dissipation (T
A = +70°C)
28-Pin TQFN (derate 20.8mW/°C above +70°C) .......1667mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ............................................................+150°C
Storage Temperature Range .............................-60°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
CHARGE-VOLTAGE REGULATION
VCTL Range 0 3.6 V
Not including resistor
tolerances
-1.0 +1.0
V VCTL = 3.6V
or 0V
Including 1% resistor
tolerances
-1.05 +1.05
Battery-Regulation Voltage
Accuracy
V VCTL = VLDO (3 or 4 cells) -0.5 +0.5
%
V VCTL Default Threshold V VCTL rising 4.4 V
V VCTL = 3V 0 4
VCTL Input Bias Current SRC = BATT, ASNS = GND INPON =
REFON = 0, V
VCTL = 5V
0 16
µA
CHARGE-CURRENT REGULATION
ICTL Range 0 3.6 V
128.25 135 141.75 mV
V
ICTL
= 3.6V
-5 +5 %
71.25 75 78.75 mV
Full-Charge-Current Accuracy
(CSIP to CSIN)
VI CTL = 2.0V
-5 +5 %
Trickle-Charge-Current Accuracy V ICTL = 120mV 2.5 4.5 7.5 mV
Charge-Current Gain Error Based on V ICTL = 3.6V and V ICTL = 0.12V -1.9 +1.9 %
Charge-Current Offset Error Based on V ICTL = 3.6V and V ICTL = 0.12V -2 +2 mV
BATT/CSIP/CSIN Input Voltage
Range
0 19 V
Charging enabled 300 600
CSIP/CSIN Input Current Charging disabled, SRC = BATT,
ASNS = GND or V
ICTL = 0V
8 16
µA