The TLC6C598-Q1 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.
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. A low on CLR clears all registers in the device. Holding the output
enable (G) high, holds all data in the output buffers low, and all drain
outputs are off. Holding G low makes data from the storage register
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) clocks out of the device on the falling edge of SRCK to provide additional
hold time for cascaded applications. This provides improved performance for applications where
clock signals may be skewed, devices are not located near one another, or the system must tolerate
electromagnetic interference. The device contains built-in thermal shutdown protection.
Outputs are low-side, open-drain DMOS transistors with output ratings of 40 V and 50 mA
continuous sink-current capabilities when Vcc = 5 V. The current limit decreases as the junction
temperature increases for additional device protection. The device also provides up to 2000 V of
ESD protection when tested using the human-body model and 200 V when using the machine model.
The TLC6C598-Q1 characterization is for for operation over the operating ambient
temperature range of −40°C to 125°C.
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