Datasheet

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    
SLIS061C − JULY 1998 − REVISED APRIL 2005
1
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
D Low r
DS(on)
...7 Typ
D Avalanche Energy . . . 30 mJ
D Eight Power DMOS Transistor Outputs of
100-mA Continuous Current
D 250-mA Current Limit Capability
D ESD Protection . . . 2500 V
D Output Clamp Voltage ...33 V
D Devices Are Cascadable
D Low Power Consumption
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.
This device contains circuits to protect its inputs and outputs against damage due to high static voltages or electrostatic fields. These
circuits have been qualified to protect this device against electrostatic discharges (ESD) of up to 2 kV according to MIL-STD-883C,
Method 3015; however, it is advised that precautions be taken to avoid application of any voltage higher than maximum-rated
voltages to these high-impedance circuits. During storage or handling, the device leads should be shorted together or the device
should be placed in conductive foam. In a circuit, unused inputs should always be connected to an appropriated logic voltage level,
preferably either V
CC
or ground. Specific guidelines for handling devices of this type are contained in the publication Guidelines for
Handling Electrostatic-Discharge-Sensitive (ESDS) Devices and Assemblies available from Texas Instruments.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications o
f
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
logic symbol
2
SRG8
This symbol is in accordance with ANSI/IEEE Std 91-1984
and IEC Publication 617-12.
8
10
7
15
2
EN3
C2
R
C1
1D
G
RCK
CLR
SRCK
SER IN
3
5
4
11
6
13
12
9
14
DRAIN0
DRAIN1
DRAIN2
DRAIN3
DRAIN4
DRAIN5
DRAIN6
DRAIN7
SER OUT
2
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
V
CC
SER IN
DRAIN0
DRAIN1
DRAIN2
DRAIN3
CLR
G
GND
SRCK
DRAIN7
DRAIN6
DRAIN5
DRAIN4
RCK
SER OUT
D, N, OR PW PACKAGE
(TOP VIEW)
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Copyright 1998 − 2005, Texas Instruments Incorporated

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