MAX4007(2003) Просмотр технического описания (PDF) - Maxim Integrated

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MAX4007
(Rev.:2003)

High-Accuracy, 76V, High-Side Current Monitors in SOT23

Maxim Integrated 

High-Accuracy, 76V, High-Side

Current Monitors in SOT23

(TA = +25°C, unless otherwise noted.)

STARTUP DELAY

(VBIAS = 5V, IREF = 250nA)

MAX4007/8 toc10

Typical Operating Characteristics (continued)

STARTUP DELAY

(VBIAS = 5V, IREF = 2.5mA)

MAX4007/8 toc11

SHORT-CIRCUIT RESPONSE

(VBIAS = 40V)

MAX4007/8 toc12

TA = +85°C

CH1

0V

CH2

0V

VBIAS

CH1

BIAS

D.U.T.

REF OUT

R1

CH2

RREF

13pF

RTEST

CH1

0V

CH2

0V

VBIAS

CH1

BIAS

D.U.T.

REF OUT

R1

CH2

RREF

13pF

RTEST

A

B

CH1

0A

RREF = 16.8mΩ

R1 = 118mΩ

RTEST = 1.67mΩ

CH1: 2V/div

CH2: 10V/div

40ms/div

RREF = 1.68kΩ

R1 = 0Ω

RTEST = 14.0kΩ

CH1: 2V/div

CH2: 1V/div

SHORT-CIRCUIT RESPONSE

(VBIAS = 76V)

MAX4007/8 toc13

TA = +85°C

4ms/div

A

CH1

0A

B

D

C

40ms/div

CH1: IBIAS, 10.0mA/div

A: REF SHORTS TO GND

B: CURRENT LIMIT ACTIVE

C: THERMAL SHUTDOWN

D: POST COOL-DOWN RETRY

20ms/div

CH1: IBIAS, 10.0mA/div

A: REF SHORTS TO GND

B: CURRENT LIMIT ACTIVE

C: THERMAL SHUTDOWN

D: POST COOL-DOWN RETRY

VOLTAGE DROP

vs. REFERENCE CURRENT

1.40

VBIAS = 2.7V

1.20

1.00

0.80

A

0.60

B

0.40 C

0.20

D

0

100n

A: TA = -40°C

B: TA = +25°C

C: TA = +85°C

D: TA = +100°C

1µ 10µ 100µ 1m 10m

REFERENCE CURRENT (A)

D

C

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