TPS3306-15DGKR Datasheet, PDF (1/18 Pages) Texas Instruments – DUAL PROCESSOR SUPERVISORY CIRCUITS WITH POWER-FAIL

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TPS3306-15
TPS3306-18, TPS3306-20
TPS3306-25, TPS3306-33
SLVS290C – APRIL 2000 – REVISED DECEMBER 2006
DUAL PROCESSOR SUPERVISORY CIRCUITS WITH POWER-FAIL
FEATURES
• Dual Supervisory Circuits With Power-Fail for
DSP and Processor-Based Systems
• Voltage Monitor for Power-Fail or Low-Battery
Warning
• Watchdog Timer With 0.8 Second Time-Out
• Power-On Reset Generator With Integrated
100 ms Delay Time
• Open-Drain Reset and Power-Fail Output
• Supply Current of 15 µA (Typ.)
• Supply Voltage Range: 7 V to 6 V
• Defined RESET Output From V_DD≥ 1.1 V
• MSOP-8 and SO-8 Packages
• Temperature Range: –40°C to +85°C
APPLICATIONS
• Multivoltage DSPs and Processors
• Portable Battery-Powered Equipment
• Embedded Control Systems
• Intelligent Instruments
• Automotive Systems
D OR DGK PACKAGE
(TOP VIEW)
SENSE1 1
SENSE2 2
PFI 3
GND 4
TPS3306
8 V_DD
7 WDI
6 PFO
5 RESET
DESCRIPTION
The TPS3306 family is a series of supervisory circuits designed for circuit initialization which require two supply
voltages, primarily in DSP and processor-based systems.
The product spectrum of the TPS3306-xx is designed for monitoring two independent supply voltages of
3.3 V/1.5 V, 3.3 V/1.8 V, 3.3 V/2 V, 3.3 V/2.5 V, or 3.3 V/5 V.
TYPICAL OPERATING CIRCUIT
3.3 V
1.5 V
AV_DD
TPS3306–15
R3 R4
CV_DD
SENSE1
V_DD
DV_DD
R1
SENSE2 WDI
1%
PFI
PFO
B_XF _TMS320
A_XF ^VC5441
R2
GND
RESET
1%
RESET
V_SS
V_SSA
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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.
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