MAX17035(2009) 查看數據表（PDF） - Maxim Integrated

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MAX17035
(Rev.:2009)

High-Frequency, Low-Cost SMBus Chargers

Maxim Integrated 

High-Frequency,

Low-Cost SMBus Chargers

ELECTRICAL CHARACTERISTICS (continued)

(Circuit of Figure 1, no load on LDO, VDCIN = VCSSP = VCSSN = 19V, VLX = 0V, VBST - VLX = 5V, VBATT = VCSIP = VCSIN = 16.8V,

TA = -40°C to +85°C, unless otherwise noted.) (Note 2)

PARAMETER

SYMBOL

CONDITIONS

MIN

LOGIC LEVELS

SDA/SCL Input Low Voltage

SDA/SCL Input High Voltage

2.1

SDA/SCL Input-Bias Current

-1

SWITCHING REGULATOR

VDCIN = 19V, VBATT = 10V, MAX17035

29

DHI Off-Time K Factor

VDCIN = 19V, VBATT = 10V, MAX17435

47

VDCIN = 19V, VBATT = 10V, MAX 17535

80

Cycle-by-Cycle Current-Limit

Sense Voltage

VCSIP - VCSIN

120

MAX UNITS

0.8

V

V

FA

41

57

ns/V

94

130

mV

DHI Resistance High

DHI Resistance Low

DLO Resistance High

DLO Resistance Low

ADAPTER DETECTION

IDHI = 10mA

IDHI = -10mA

IDLO = 10mA

IDLO = -10mA

3

I

1.6

I

6

I

6

I

Adapter Absence Detect

Threshold

VDCIN - VBATT, VDCIN falling

50

200

mV

Adapter Detect Threshold

CHARGE-PUMP MOSFET DRIVER

PDSL Gate-Driver

Output-Voltage High

VDCIN - VBATT, VDCIN rising

VDCIN = 19V

340

VDCIN

+ 5.3

570

mV

V

ADAPTER OVERVOLTAGE PROTECTION

ACOVP Threshold

Rising

PDSL SWITCH CONTROL

PDSL Turn-Off Resistance

SMBus TIMING SPECIFICATIONS

SMBus Frequency

fSMB

Bus Free Time

tBUF

START Condition Hold Time

from SCL

tHD:STA

2.04

10

4.7

4

2.1

V

4

kI

100

kHz

Fs

Fs

START Condition Setup Time

from SCL

tSU:STA

4.7

Fs

STOP Condition Setup Time

from SCL

tSU:STO

4

Fs

8   _______________________________________________________________________________________

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