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

• Devices are Cascadable

• Low-Power Consumption

2 Applications

• Instrumentation Clusters

• Tell-Tale Lamps

• LED Illumination and Controls

• Automotive Relay or Solenoids

• Drivers

3 Description

The TPIC6C595 is a monolithic, medium-voltage,

low-current power 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 device transfers data out the serial

output (SER OUT) port on the rising edge of SRCK.

The storage register transfers data to the output

buffer when shift register clear (CLR) is high. When

CLR is low, the input shift register is 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 SER OUT allows for

cascading of the data from the shift register to

additional devices.

Outputs are low-side, open-drain DMOS transistors

with output ratings of 33-V to 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 TPIC6C595 is characterized for operation over

the operating case temperature range of −40°C to

125°C.