MAX8730 Просмотр технического описания (PDF) - Maxim Integrated

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MAX8730

Low-Cost Battery Charger

Maxim Integrated 

Low-Cost Battery Charger

ELECTRICAL CHARACTERISTICS (continued)

(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 = -40°C to +85°C, unless otherwise noted.)

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX UNITS

BATTERY DETECTION

RELTH Operating Voltage Range

0.9

2.6

V

BATT Minimum Voltage Trip

Threshold

PDS, PDL SWITCH CONTROL

VBATT falling

VRELTH = 0.9V

VRELTH = 2.6V

4.42

12.77

4.58

V

13.23

Adapter-Absence-Detect

Threshold

VASNS - VBATT, VASNS falling

-310

-240

mV

Adapter-Detect Threshold

PDS Output Low Voltage

PDS/PDL Output High Voltage

PDS/ PDL Turn-Off Current

PDS Turn-On Current

VASNS - VBATT

Result with respect to SRC, IPDS = 0

Result with respect to SRC, IPD_ = 0

VPDS = VSRC - 2V, VSRC = 16V

PDS = SRC

-140

-7

6

6

-60

mV

-12

V

-0.5

V

mA

mA

PDL Turn-On Resistance

PDL = GND

Note 1: Accuracy does not include errors due to external-resistance tolerances.

Note 2: In this mode, SRC current is drawn from the battery.

50

100 200

kΩ

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