Datasheet

Broadcom ACHS-7124-7125-DS101
5
ACHS-7124/7125 Data Sheet
Fully Integrated, Hall Effect-Based Linear Current Sensor IC with 3 kV
RMS
Isolation and
Low-Resistance Current Conductor
Regulatory Information
The ACHS-7124/7125 is approved by the following organizations:
Insulation and Safety Related Specifications
Absolute Maximum Ratings
UL/cUL
UL 1577, component recognition program up to V
ISO
= 3000 V
RMS
. Approved under CSA Component Acceptance Notice#5.
Parameter Symbol Value Units Conditions
Minimum External Air Gap
(External Clearance)
L(101) 4.0 mm Measured from the input terminals to the output terminals, the
shortest distance through air
Minimum External Tracking
(External Creepage)
L(102) 4.0 mm Measured from the input terminals to the output terminals, the
shortest distance path along body
Minimum Internal Plastic Gap
(Internal Clearance)
— 0.05 mm Through the insulation distance, conductor to conductor, usually
the direct distance between the primary input conductor and he
detector IC
Tracking Resistance
(Comparative Tracking Index)
CTI >175 V DIN IEC 112/VDE 0303 Part 1
Isolation Group — IIIa — Material Group (DIN VDE 0110, 1/89, Table 1)
Parameter Symbol Min. Max. Units Test Conditions
Storage Temperature T
S
–55 +125 °C
Ambient Operating Temperature T
A
–40 +110 °C
Junction Temperature T
J
— +150 °C
Primary Conductor Lead Temperature T
L
— +150 °C Pins 1, 2, 3, or 4
Supply Voltages V
DD
–0.5 8.0 V
Output Voltage V
OUT
–0.5 V
DD
+ 0.5 V
Output Current Source I
OUT(source)
—10mAT
A
= 25°C
Output Current Sink I
OUT(sink)
—10mAT
A
= 25°C
Overcurrent Transient Tolerance I
P
— 100 A 1 pulse, 100 ms; T
A
= 25°C
Input Power Dissipation
a
a. Absolute Maximum Input Power Dissipation is only valid if 4-oz copper PCB is used. This power is valid up to 85°C ambient temperature. For
>85°C ambient, a derating factor of –25.2 mW/°C is needed.
P
IN
— 1750 mW
Output Power Dissipation P
OUT
—90mW