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參數(shù)資料
| 型號： | TPS386040RGPT |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | 4-CHANNEL POWER SUPPLY MANAGEMENT CKT, PQCC20 |
| 封裝： | 4 X 4 MM, GREEN, PLASTIC, QFN-20 |
| 文件頁數(shù)： | 1/31頁 |
| 文件大小： | 681K |
| 代理商： | TPS386040RGPT |
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VCC1
RST
TPS386000
SENSE1
SENSE2
SENSE3
SENSE4L
SENSE4H
VREF
GPIO
R
S1H
Microprocessor
DSP
FPGA
GND
CT1
CT2
CT3
CT4
RESET1
RESET2
RESET3
RESET4
WDO
WDI
VCC
MR
VCC1
VCC2
VCC3
VCC4
VCC2
VCC3
VCC4
R
S2H
R
S3H
VCC2
VCC3
VCC4
R
S4H
R
S4L
R
S3L
R
S2L
R
S1L
SBVS105B
– SEPTEMBER 2009 – REVISED MARCH 2011
Quad Supply Voltage Supervisor
with Adjustable Delay and Watchdog Timer
1
FEATURES
DESCRIPTION
The TPS3860x0 family of supply voltage supervisors
2
Four Independent Voltage Supervisors
(SVSs) can monitor four power rails that are greater
Channels 1, 2, 3: Adjustable Threshold Down
than 0.4V and one power rail less than 0.4V
to 0.4V
(including negative voltage) with a 0.25% (typical)
Channel 4: Adjustable Threshold at Any
threshold accuracy. Each of the four supervisory
circuits (SVS-n) assert a RESETn or RESETn output
Positive/Negative Voltage
signal when the SENSEm input voltage drops below
Adjustable Delay Time: 1.4ms to 10s
the programmed threshold. With external resistors,
Threshold Accuracy: 0.25% typ
the threshold of each SVS-n can be programmed
Very Low Quiescent Current: 11
μA typ
(where n = 1, 2, 3, 4 and m = 1, 2, 3, 4L, 4H).
Channel 1: Manual Reset (MR) Input
Each SVS-n has a programmable delay before
releasing RESETn or RESETn. The delay time can
Channel 4: Window Comparator
be set independently for each SVS from 1.4ms to 10s
Watchdog Timer with Dedicated Output
through the CTn pin connection. Only SVS-1 has an
Well-Controlled Output During Power-Up
active-low manual reset (MR) input; a logic-low input
TPS386000: Open-Drain RESETn and WDO
to MR asserts RESET1 or RESET1.
TPS386020: Open-Drain RESETn and WDO
SVS-4 monitors the threshold window using two
comparators.
The
extra
comparator
can
be
TPS386040: Push-Pull RESETn and WDO
configured as a fifth SVS to monitor negative voltage
TPS386060: Push-Pull RESETn and WDO
with voltage reference output VREF.
Package: 4mm x 4mm, 20-pin QFN
The TPS3860x0 has a very low quiescent current of
11
μA (typical) and is available in a small, 4mm x
APPLICATIONS
4mm, QFN-20 package.
All DSP and Microcontroller Applications
All FPGA/ASIC Applications
Telecom/Wireless Infrastructure
Industrial Equipment
Analog Sequencing
TPS386000 Typical Application Circuit
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
All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright
2009–2011, Texas Instruments Incorporated
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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