MAX8730 Просмотр технического описания (PDF) - Maxim Integrated

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MAX8730

Low-Cost Battery Charger

Maxim Integrated 

Low-Cost Battery Charger

ABSOLUTE MAXIMUM RATINGS

CSSP, SRC, A C O K, 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 (TA = +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

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

(Circuit of Figure 1. VSRC = VASNS = VCSSP = VCSSN = 18V, VBATT = VCSIP = VCSIN = 12V, VVCTL = VICTL = 1.8V, MODE = float,

ACIN = 0, CLS = REF, REFON = LDO, INPON = LDO, RELTH = 2V. TA = 0°C to +85°C, unless otherwise noted. Typical values are at

TA = +25°C.)

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX UNITS

CHARGE-VOLTAGE REGULATION

VCTL Range

0

3.6

V

Battery-Regulation Voltage

Accuracy

VVCTL = 3.6V

or 0V

Not including resistor

tolerances

Including 1% resistor

tolerances

-1.0

-1.05

+1.0

%

+1.05

VVCTL Default Threshold

VCTL Input Bias Current

CHARGE-CURRENT REGULATION

VVCTL = VLDO (3 or 4 cells)

-0.5

VVCTL rising

4.4

VVCTL = 3V

0

SRC = BATT, ASNS = GND INPON =

REFON = 0, VVCTL = 5V

0

+0.5

V

4

µA

16

ICTL Range

0

3.6

V

Full-Charge-Current Accuracy

(CSIP to CSIN)

VICTL = 3.6V

VICTL = 2.0V

128.25 135 141.75 mV

-5

+5

%

71.25 75 78.75 mV

-5

+5

%

Trickle-Charge-Current Accuracy

Charge-Current Gain Error

Charge-Current Offset Error

VICTL = 120mV

Based on VICTL = 3.6V and VICTL = 0.12V

Based on VICTL = 3.6V and VICTL = 0.12V

2.5

4.5

7.5

mV

-1.9

+1.9

%

-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 VICTL = 0V

µA

8

16

2 _______________________________________________________________________________________

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