High-Accuracy, High-Side Current Monitors

in SOT23

6

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Typical Operating Characteristics (continued)

Pin Description

PIN

MAX4004

MAX4006

NAME

FUNCTION

1

1

CLAMP

Clamp Voltage Input. External potential used for voltage

2

2

GND

Ground

3

—

OUT

4

4

REF

Reference Current Output. REF provides the source current to

the cathode of the photodiode.

5

5

N.C.

No Connection. Not internally connected.

6

6

BIAS

Bias Voltage Input. Bias voltage for photodiode.

—

3OUT

Current-Monitor Output. OUT presents a voltage proportional to

Ω resistor connects OUT to GND

(see Functional Diagram).

10ms/div

SHORT-CIRCUIT RESPONSE

0A

CH1

A: REF SHORTS TO GND

B: CURRENT LIMIT ACTIVE

C: THERMAL SHUTDOWN

A

B

C

°C

VOLTAGE DROP

vs. REFERENCE CURRENT

REFERENCE CURRENT (A)

1m

100

µ

10

µ

1

µ

0.20

0.40

0.60

0.80

1.00

1.20

1.40

0

100n

10m

°C

°C

°C

°C

A

B

C

D