1 Features
1• Low RDS(on), 7 Ω (Typical)
• Avalanche Energy, 30 mJ
• Eight Power DMOS Transistor Outputs of 100-mA
Continuous Current
• 250-mA Current Limit Capability
• ESD Protection, 2500 V
• Output Clamp Voltage, 33 V
• Enhanced Cascading for Multiple Stages
• All Registers Cleared With Single Input
• Low Power Consumption

2 Applications
• Instrumentation Clusters
• Tell-Tale Lamps
• LED Illumination and Controls
• Automotive Relay or Solenoids Drivers

3 Description
The TPIC6C596 device is a monolithic, medium-
voltage, low-current, 8-bit shift register designed for use in systems that require relatively moderate load
power such as LEDs. The device contains a built-in
voltage clamp on the outputs for inductive transient
protection. Power driver applications include relays,
solenoids, and other low-current or medium-voltage loads.
This device contains an 8-bit serial-in, parallel-out shift register that feeds an 8-bit D-type storage
register. Data transfers through both the shift and
storage registers on the rising edge of the shift
register clock (SRCK) and the register clock (RCK),
respectively. The storage register transfers data to the output buffer when shift register clear (CLR) is
high. When CLR is low, all registers in the device are
cleared. When output enable (G) is held high, all data
in the output buffers is held low and all drain outputs
are off. When G is held low, data from the storage
register is transparent to the output buffers. When
data in the output buffers is low, the DMOS transistor
outputs are off. When data is high, the DMOS
transistor outputs have sink-current capability.
The serial output (SER OUT) is clocked out of the
device on the falling edge of SRCK to provide
additional hold time for cascaded applications. This
will provide improved performance for applications
where clock signals may be skewed, devices are not
located near one another, or the system must tolerate
electromagnetic interference.
Outputs are low-side, open-drain DMOS transistors
with output ratings of 33 V and 100 mA continuous
sink-current capability. Each output provides a 250-
mA maximum current limit at TC = 25°C. The current
limit decreases as the junction temperature increases
for additional device protection. The device also
provides up to 2500 V of ESD protection when tested
using the human body model and the 200-V machine
model.
The TPIC6C596 device is characterized for operation
over the operating case temperature range of −40°C
to 125°C.