TPL9202
8-CHANNEL RELAY DRIVER
WITH INTEGRATED 5-V LDO AND BROWN-OUT DETECTION
www.ti.com
SLIS124D–JUNE 2006–REVISED FEBRUARY 2008
1
FEATURES
APPLICATIONS
•
Electrical Applicances
2
•
Eight Low-Side Drivers With Internal Clamp for
Inductive Loads and Current Limiting for Self
Protection
–
–
–
–
–
–
Air Conditioning Units
Ranges
Dishwashers
Refrigerators
Microwaves
Washing Machines
–
Seven Outputs Rated at 150 mA and
Controlled Through Serial Interface
–
One Output Rated at 150 mA and
Controlled Through Serial Interface and
Dedicated Enable Pin
•
General-Purpose Interface Circuit Allowing
Microcontroller Interface to Relays, Electric
Motors, LEDs, and Buzzers
•
•
•
5-V ± 5% Regulated Power Supply With
200-mA Load Capability at VIN Max of 18 V
Internal Voltage Supervisory for Regulated
Output
PWP PACKAGE
(TOP VIEW)
Serial Communications for Control of Eight
Low-Side Drivers
1
2
3
4
5
6
7
8
9
10
BO_OUTZ
OUT1
OUT2
OUT3
OUT4
OUT5
OUT6
OUT7
OUT8
GND
20
19
18
17
16
15
14
13
12
11
BO
VIN
•
•
Enable/Disable Input for OUT1
5VOUT
SCLK
NCS
5-V or 3.3-V I/O Tolerant for Interface to
Microcontroller
MOSI
•
•
Programmable Power-On Reset Delay Before
RST Asserted High, Once 5 V Is Within
Specified Range (6 ms Typ)
RST
RDELAY
EN1
NC
Programmable Deglitch Timer Before RST
Asserted Low (40 µs Typ)
•
•
Programmable Brown-Out Feature
Thermal Shutoff for Self Protection
NC – No internal connection
DESCRIPTION/ORDERING INFORMATION
The power supply provides regulated 5-V output to power the system microcontroller and drive eight low-side
switches. The brown-out detection output (BO_OUTZ) warns the system if there is a temporary drop in the
supply voltage, so the system can prevent potentially hazardous situations.
A serial communications interface controls the eight low-side outputs; each output has an internal snubber circuit
to absorb the inductive load at turn OFF. Alternatively, the system can use a fly-back diode to VIN to help
recirculate the energy in an inductive load at turn OFF.
ORDERING INFORMATION(1)
TA
PACKAGE(2)
Reel of 2000
Tube of 70
ORDERABLE PART NUMBER
TPL9202PWPR
TOP-SIDE MARKING
–40°C to 125°C
PowerPAD™ – PWP
PL202
TPL9202PWP
(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
web site at www.ti.com.
(2) Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2
PowerPAD is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2006–2008, Texas Instruments Incorporated