1 Features
• AEC-Q100 qualified for automotive applications
– Temperature grade 1: –40°C to 125°C, TA
• Functional Safety-Capable
– Documentation available to aid functional safety
system design
• High continuous current capability: 80ARMS
• Robust reinforced isolation
• High accuracy
– Sensitivity error: ±0.1%
– Sensitivity thermal drift: ±20ppm/°C
– Sensitivity lifetime drift: ±0.2%
– Offset error: ±0.2mV
– Offset thermal drift: ±10μV/°C
– Offset lifetime drift: ±0.2mV
– Non-linearity: ±0.1%
• High immunity to external magnetic fields
• Fast Response
– Signal bandwidth: 1MHz
– Response time: 120ns
– Propagation delay: 50ns
– Overcurrent detection response: 100ns
• Operating supply range: 3V to 5.5V
• Bidirectional and unidirectional current sensing
• Multiple sensitivity options:
– Ranging from 20mV/A to 150mV/A
• Safety related certifications (planned)
– UL 1577 Component Recognition Program
– IEC/CB 62368-1

2 Applications
• Onboard charger
• DC/DC converter
• Rotor excitation
• HVAC compressor
• High-voltage PDU
• EV charging

3 Description
The TMCS1133-Q1 is a galvanically isolated Halleffect
current sensor with industry leading isolation
and accuracy. An output voltage proportional to the
input current is provided with excellent linearity and
low drift at all sensitivity options. Precision signal
conditioning circuitry with built-in drift compensation is
capable of less than 1.4% maximum sensitivity error
over temperature and lifetime with no system level
calibration, or less than 0.9% maximum sensitivity
error including both lifetime and temperature drift with
a one-time calibration at room temperature.
AC or DC input current flows through an internal
conductor generating a magnetic field measured
by integrated, on-chip, Hall-effect sensors. Coreless
construction eliminates the need for magnetic
concentrators. Differential Hall sensors reject
interference from stray external magnetic fields. Low
conductor resistance increases measurable current
ranges up to ±96A while minimizing power loss and
easing thermal dissipation requirements. Insulation
capable of withstanding 5kVRMS, coupled with a
minimum of 8mm creepage and clearance, provides
high levels of reliable lifetime reinforced working
voltage. Integrated shielding enables excellent
common-mode rejection and transient immunity.
Fixed sensitivity allows the device to operate from a
single 3V to 5.5V power supply, eliminating ratiometry
errors and improving supply noise rejection.