Datasheet

MAX4004/MAX4006
High-Accuracy, High-Side Current Monitors
in SOT23
6 _______________________________________________________________________________________
Typical Operating Characteristics (continued)
(T
A
= +25°C, unless otherwise noted.)
Pin Description
PIN
MAX4004 MAX4006
NAME FUNCTION
11CLAMP
Clamp Voltage Input. External potential used for voltage
clamping of V
OUT
.
22GND Ground
3—OUT Current-Monitor Output. OUT sources a current of 1/10th I
REF
.
44REF
Reference Current Output. REF provides the source current to
the cathode of the photodiode.
55N.C. No Connection. Not internally connected.
66BIAS Bias Voltage Input. Bias voltage for photodiode.
—3OUT
Current-Monitor Output. OUT presents a voltage proportional to
I
REF
at 1V/mA. An internal 10kΩ resistor connects OUT to GND
(see Functional Diagram).
10ms/div
SHORT-CIRCUIT RESPONSE
(V
BIAS
= 22V)
MAX4004/6 toc13
0A
CH1
CH1: I
BIAS
, 10mA/div
A: REF SHORTS TO GND
B: CURRENT LIMIT ACTIVE
C: THERMAL SHUTDOWN
A
B
C
T
A
= +120
°
C
VOLTAGE DROP
vs. REFERENCE CURRENT
MAX4004/6 toc14
REFERENCE CURRENT (A)
V
BIAS
- V
REF
(V)
1m100
µ
10
µ
1
µ
0.20
0.40
0.60
0.80
1.00
1.20
1.40
0
100n 10m
A: T
A
= -40
°
C
B: T
A
= +25
°
C
C: T
A
= +85
°
C
D: T
A
= +100
°
C
A
B
C
D
V
BIAS
= 2.7V