Description
The ISO8200BQ is a galvanic isolated 8-channel
driver featuring a very low supply current. It
contains 2 independent galvanic isolated voltage
domains (Vcc for the power stage and Vdd for the
digital stage). Additional embedded functions are:
loss of GND protection, undervoltage shutdown
with hysteresis, and reset function for immediate
power output shutdown.
IC is intended to drive any kind of load with one
side connected to ground. Active channel current
limitation combined with thermal shutdown,
(independent for each channel), and automatic
restart, protect the device against overload and
short-circuit. In overload conditions, if junction
temperature overtakes threshold, the channel
involved is turned off and on again automatically
after the IC temperature decreases below a reset
threshold. If this condition causes case
temperature to reach TCR limit threshold, the
overloaded channel is turned off and it only
restarts when case and junction temperature
decrease down to the reset thresholds. Nonoverloaded channels continue operating
normally. An internal circuit provides an OR-wired
non-latched common FAULT indicator
signaling the channel OVT. The FAULT pin is
an open-drain active low fault indication pin.

Features
 Parallel input interface
 Direct and synchronous control mode
 High common mode transient immunity
 Output current: 0.7 A per channel
 Short-circuit protection
 Channel overtemperature protection
 Thermal independence of separate channels
 Common output disable pin
 Case overtemperature protection
 Loss of GNDcc and Vcc protection
 Undervoltage shutdown with auto-restart
and hysteresis
 Overvoltage protection (Vcc clamping)
 Very low supply current
 Common fault open-drain output
 5 V and 3.3 V TTL/CMOS compatible I/Os
 Fast demagnetization of inductive loads
 Reset function for IC output disable
 ESD protection
 IEC 61000-4-2, IEC 61000-4-4, IEC 61000-
4-5 and IEC 61000-4-8 compliant

Applications
 Programmable logic control
 Industrial PC peripheral input/output
 Numerical control machines
 Drivers for all types of loads (resistive,
capacitive, inductive)