[CQ-2063]
MS1262-E-05 2013/06
- 2 -
Circuit Blocks
Table 1. Explanation of circuit blocks
Circuit Block Function
Hall Sensor Hall element which detects magnetic flux density generated from the measured current.
Amplifier Amplifier of Hall element’s output.
Buffer
Output buffer with gain. This block outputs the voltage (V
OUT
) proportional to the current
applied to the primary conductor.
Compensation Compensation circuit which adjusts the temperature drifts of sensitivity and offset voltage.
Bias Unit Drive circuit for Hall element.
EEPROM Unit
Non-volatile memory for setting adjustment parameters. The parameters are adjusted before
the shipment.
Magnetic Core Magnetic core which gathers the magnetic flux density to the Hall element.
Typical Output Characteristics
Figure 2. Typical output characteristics of CQ-2063
Pin/Function
Table 2. Pin-out description
No. Name I/O Description
1 DATA_IO - Test pin (connect to ground)
2 VDD - Power supply pin (5V)
3 VSS - Ground pin (0V)
4 VOUT O Analog output pin
5 SCLK - Test pin (connect to ground)
6 P I Primary current pin (+)
7 N I Primary current pin (−)
Figure 3. Pin-out diagram
I
IN
0
I
NS
−I
NS
V
DD
1/2 V
DD
P→N
N→P
V
OUT
CQ-2063
(Top View)
←
I
IN
←
V
OUT
V
DD
P N
CQ-2063
(Top View)
6
7
1 3 2 4 5
