TPS386000-Q1_16 Datasheet, PDF (1/34 Pages) Texas Instruments – Quad Supply Voltage Supervisors

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TPS386000-Q1
SBVS149B – SEPTEMBER 2010 – REVISED JANUARY 2016
TPS386000-Q1 Quad Supply Voltage Supervisors
With Programmable Delay and Watchdog Timer
1 Features
•1 Qualified for Automotive Applications
• AEC Q100 Test Guidance With the Following
Results:
– Device Temperature Grade 1: –40°C to 125°C
Ambient Operating Temperature Range
– Device HBM ESD Classification Level H2
– Device CDM ESD Classification Level C4B
• Four Complete SVS Modules on one Silicon
Platform
• Programmable Delay Time: 1.4 ms to 10 s
• Very Low Quiescent Current: 12 μA Typical
• Threshold Accuracy: 0.25% Typical
• SVS-1: Manual Reset (MR) Input
• SVS-1, 2, 3: Adjustable Threshold Down to 0.4 V
• SVS-4:
– Adjustable Threshold at Any Positive or
Negative Voltage with VREF (1.2 V)
– Window Comparator
• Watchdog Timer with Dedicated Output
• Well-Controlled RESETn Output During Power-Up
• Open-Drain RESETn and WDO
• Package: 4-mm x 4-mm, 20-pin VQFN
2 Applications
• Automotive
• ADAS
– Front Camera, Surround View, Long-Range
Radar, and Short-Range Radar
3 Description
The TPS386000-Q1 family of voltage supervisors can
monitor four power rails that are greater than 0.4 V
and one power rail less than 0.4 V (including negative
voltage) with a 0.25% (typical) threshold accuracy.
Each of the four supervisory circuits (SVS-n) assert a
RESETn or RESETn output signal when the
SENSEm input voltage drops below the programmed
threshold. With external resistors, the threshold of
each SVS-n can be programmed (where n = 1, 2, 3,
4 and m = 1, 2, 3, 4L, 4H).
Each SVS-n has a programmable delay before
releasing RESETn or RESETn. The delay time can
be set from 1.4 ms to 10 s through the CTn pin
connection. Only SVS-1 has an active-low manual
reset (MR) input; a logic-low input to MR asserts
RESET1 or RESET1.
SVS-4 monitors the threshold window using two
comparators. The extra comparator can be
configured as a fifth SVS to monitor negative voltage
with voltage reference output VREF.
The TPS386000-Q1 device has a very low quiescent
current of 12 μA (typical) and is available in a small,
4-mm x 4-mm, VQFN-20 package.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS38600-Q1
VQFN (20)
4.00 mm × 4.00 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
TPS386000-Q1 Typical Application Circuit
V_MON(1)
R_S1H
V_MON(2)
V_MON(3)
V_MON(4)
R_S2H
R_S3H
R_S4H
R_S1L
R_S2L
R_S3L
R_S4L
TPS386000-Q1
SENSE1
RESET1
SENSE2
RESET2
SENSE3
RESET3
SENSE4L
RESET4
SENSE4H
WDO
VREF
WDI
RST
Microprocessor
DSP
FPGA
GPIO
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.