MAX14821(2011) 查看數據表（PDF） - Maxim Integrated

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产品描述 (功能)

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MAX14821
(Rev.:2011)

IO-Link Device Transceiver

Maxim Integrated 

MAX14821

IO-Link Device Transceiver

Typical Operating Characteristics (continued)

(VCC = 24V, LDOIN = VP, VL = LDO33, C/Q and DO in push-pull configuration, TA = +25NC, unless otherwise noted.)

C/Q SHORT-CIRCUIT PROTECTION

MAX14821 toc13

DO SHORT-CIRCUIT PROTECTION

MAX14821 toc14

C/Q

10V/div

DO

10V/div

TXEN = VL

TXQ = TXC = VL

tSHORT = 200µs

40µs

ISINK

100mA /div

IRQ

2V/div

DO DRIVER ENABLED

LO = GND

tSHORT = 500µs

100µs

ISOURCE

100mA /div

IRQ

2V/div

0

-0.05

-0.10

-0.15

-0.20

-0.25

-0.30

-0.35

-0.40

-0.45

-0.50

0

V5 LOAD REGULATION

TA = +25°C

TA = -40°C

TA = +85°C

10

20

30

40

50

LOAD CURRENT (mA)

LDO33 LOAD REGULATION

0

TA = -40°C

-0.1

-0.2

-0.3

TA = +25°C

-0.4

-0.5

TA = +85°C

-0.6

-0.7

0 5 10 15 20 25 30 35 40 45 50

LOAD CURRENT (mA)

VCC SUPPLY CURRENT

vs. VCC VOLTAGE

1.8

TA = +25°C

1.6

1.4

1.2

1.0

TA = +85°C

TA = -40°C

0.8

0.6 VLDOIN = 7V

C/Q AND DO DRIVERS ENABLED

0.4 V5, VP UNLOADED

0.2 C/Q AND DI CURRENT LOADS OFF

TXC = TXQ = LO = VL

0

9 12 15 18 21 24 27 30 33 36

VCC VOLTAGE (V)

LDOIN SUPPLY CURRENT

vs. LDOIN VOLTAGE

4.0

3.5

3.0

TA = +25°C TA = +85°C

2.5

TA = -40°C

2.0

1.5

1.0 VCC = 36V

C/Q AND DO DRIVERS ENABLED

0.5 V5, LDO33 ARE LOADED

TXC = TXQ = LO = VL

0

9 12 15 18 21 24 27 30 33 36

VLDOIN (V)

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