MAX1870A データシートの表示（PDF） - Maxim Integrated

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MAX1870A

Step-Up / Step-Down Li+ Battery Charger

Maxim Integrated 

Step-Up/Step-Down

Li+ Battery Charger

ELECTRICAL CHARACTERISTICS

(Circuit of Figure 2, VDCIN = VCSSP = VCSSN = VCSSS = VVHP = 18V, VBATT = VCSIP = VCSIN = VBLKP = 12V, VREFIN = 3.0V, VICTL =

0.75 x VREFIN, VCTL = LDO, CELLS = FLOAT, GND = PGND = 0, VDLOV = 5.4V, TA = -40°C to +85°C.) (Note 1)

PARAMETER

ERROR AMPLIFIERS

GMV Amplifier Loop

Transconductance

CONDITIONS

VCTL = REFIN, VBATT = 16.8V

MIN TYP MAX UNITS

0.05

0.20 µA/mV

GMI Amplifier Loop

Transconductance

GMS Amplifier Loop

Transconductance

CCV Output Current

CCI Output Current

CCS Output Current

CCI/CCS/CCV Clamp Voltage

LOGIC LEVELS

ASNS Output-Voltage Low

ASNS Output-Voltage High

ASNS Current Detect

SHDN Threshold

CELLS Input Low Voltage

CELLS Float Voltage

ICTL = REFIN, VCSIP - VCSIN = 72mV

VCLS = REF, VCSSP - VCSSN = 102mV, VCSSP = VCSSS

VCLS = REF, VCSSP - VCSSS = 102mV, VCSSP = VCSSN

VCTL = REFIN, VBATT = 15.8V

VCTL = REFIN, VBATT = 17.8V

ICTL = REFIN, VCSIP - VCSIN = 0mV

ICTL = REFIN, VCSIP - VCSIN = 150mV

CLS = REF, VCSSP = VCSSN, VCSSP = VCSSS

CLS = REF, VCSSP - VCSSN = 200mV,

VCSSP - VCSSS = 200mV

1.1V < VCCV < 3.5V, 1.1V < VCCS < 3.5V,

1.1V < VCCI < 3.5V

VIINP = GND, ISINK = 1mA

VIINP = 4V, ISOURCE = 1mA

VIINP rising

SHDN falling, VREFIN = 2.8V to 3.6V

1.8

3.0 µA/mV

1.2

2.2

µA/mV

1.2

2.2

50

µA

-50

150

µA

-150

100

µA

-100

100

500

mV

LDO -

0.5

1.1 1.15

22

40

0.4

V

V

1.2

V

25

% of

REFIN

0.75

V

60

% of

REFIN

CELLS Input High Voltage

REFIN -

V

0.75V

Note 1: Specifications to -40°C are guaranteed by design, not production tested.

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