|Category||Power Management => Supervisory Circuits|
|Description||Nanopower Supervisory Circuits|
|Company||Texas Instruments, Inc.|
|Datasheet||Download TPS3837H30 datasheet
D Supply Current 220 nA (Typ) D Precision Supply Voltage Supervision
Range: 3.3 V Power-On Reset Generator With Selectable Delay Time 200 ms Push/Pull RESET Output (TPS3836), RESET Output (TPS3837), or Open-Drain RESET Output (TPS3838) Manual Reset 5-Pin SOT-23 Package Temperature Range to 85°C
Applications Using Low-Power DSPs, Microcontrollers, or Microprocessors Portable/Battery-Powered Equipment Intelligent Instruments Wireless Communication Systems Notebook Computers Automotive Systemsdescription
The TPS3837, TPS3838 families of supervisory circuits provide circuit initialization and timing supervision, primarily for DSP and processor-based systems. During power on, RESET is asserted when the supply voltage VDD becomes higher than 1.1 V. Thereafter, the supervisory circuit monitors VDD and keeps RESET output active as long as VDD remains below the threshold voltage VIT. An internal timer delays the return of the output to the inactive state (high) to ensure proper system reset. The delay time starts after VDD has risen above the threshold voltage VIT.
When CT is connected to GND a fixed delay time of typical ms is asserted. When connected to VDD the delay time is typically 200 ms. When the supply voltage drops below the threshold voltage VIT, the output becomes active (low) again. All the devices of this family have a fixed-sense threshold voltage VIT set by an internal voltage divider. The TPS3836 has an active-low push-pull RESET output. The TPS3837 has active-high push-pull RESET, and TPS3838 integrates an active-low open-drain RESET output.
TYPICAL OPERATING CIRCUIT 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.
PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.
The product spectrum is designed for supply voltages 3 V, and 3.3 V. The circuits are available 5-pin SOT-23 package. The TPS3837, TPS3838 families are characterized for operation over a temperature range to 85°C.
PACKAGE INFORMATION TA DEVICE NAME TPS3838L30DBVT TPS3838K33DBVT THRESHOLD VOLTAGE 2.93 V SYMBOL PDNI PDSI PHRI PCAI PDTI PDOI PDRI PCBI PDUI PDQI PDPI PCCI PDVI
The DBVR passive indicates tape and reel of 3000 parts. The DBVT passive indicates tape and reel of 250 parts. ORDERING INFORMATIONReel Package Nominal Supply Voltage Typical Reset Threshold Voltage Functionality Family
|Some Part number from the same manufacture Texas Instruments, Inc.|
|TPS3838H30 Nanopower Supervisory Circuits|
|TPS40000 Low Input Voltage Mode Synchronous Buck Controller|
|TPS40004 Synchronous Buck DC/DC Controller|
|TPS40007 Low Input Synchronous Buck Controller|
|TPS40020 Enhanced Low Input Voltage (2.25V-5.5V) Buck<<<>>>dc-to-dc Controllers Are Designed For Non-isolated Synchronous Buck Regulators, Providing Enhanced Operation And Design Flexability Through User Programmability.<<<>>>features<<<>>>operating|
|TPS40050 Q1 - Automotive Catalog Wide-input Synchronous Buck Controller|
|TPS40052 SYNCH Buck DC/DC Control W/ddr Tracking|
SMJ4256FV : 262,144-bit Dynamic Random-access Memory
TAS5342LADDV : 100-W Stereo Digital Amplifier Power Stage The TAS5342LA is a high-performance, integrated stereo digital amplifier power stage designed to drive a 4-? bridge-tied load (BTL) at up to 100 W per channel with low harmonic distortion, low integrated noise, and low idle current. The TAS5342LA has a
UA78U08CKTPR : Positive-voltage Regulators
TLK1221RHA : Ethernet Transceiver
TLC2543-Q1 : 12-bit Analog-to-digital Converter WITH Serial Control AND 11 Analog Inputs
ADS1298CZXGR : 8-Channel, 24-Bit Analog-To-Digital Converter With Integrated ECG Front End The ADS1294/6/8 are a family of multichannel, simultaneous sampling, 24-bit, delta-sigma () analog-to-digital converters (ADCs) with a built-in programmable gain amplifier (PGA), internal reference, and an onboard oscillato
CD4030BNSRG4 : Logic - Gate And Inverter Integrated Circuit (ics) XOR (Exclusive OR) Tape & Reel (TR) 6.8mA, 6.8mA 3 V ~ 18 V; IC EX-OR GATE QUAD 14-SOP Specifications: Number of Circuits: 4 ; Package / Case: 14-SOIC (0.209", 5.30mm Width) ; Logic Type: XOR (Exclusive OR) ; Packaging: Tape & Reel (TR) ; Mounting Type: Surface Mount ; Number of Inputs: 2 ; Current - Output High, Low: 6.8mA, 6.8mA ; Operating Temperature: -55°C ~ 125°C ; Voltage -
TPS70848PWPG4 : ti TPS70848, Dual-output LDO With SVS And Independent Enables
AIC1580 : Step-down Switching Regulator Controller. The is a high-power, high-efficiency voltage-mode switching regulator controller for motherboard VI/O power supply applications. Designed to drive a N-channel MOSFET in a standard buck topology, the AIC1580 a high voltage CMOS output driver, short-circuit protection, and 8-pin package. An external 4-bit Digital-to-Analog Converter (DAC) can be used.
FAN1538 : Dual 1A Adjustable Low Dropout Voltage Linear Regulator With Uvlo And Soft-start.
HCTS161AHMSR : broadband power. Radiation Hardened Synchronous Counter. 16 LEAD CERAMIC DUAL-IN-LINE METAL SEAL PACKAGE (SBDIP) MIL-STD-1835 CDIP2-T16, LEAD FINISH C TOP VIEW 3 Micron Radiation Hardened CMOS SOS Total Dose 200K RAD (Si) Minimum LET for SEU Upsets: >100 MEV-cm2/mg Single Event Upset (SEU) Immunity x 10-9 Errors/BitDay (Typ) Dose Rate Survivability: x 1012 RAD (Si)/s Dose Rate Upset >1010 RAD (Si)/s.
LM320 : Fixed. 3-terminal Negative Regulator. The LM120 series are three-terminal negative regulators with a fixed output voltage b5V b12V and b15V and 1 5A load current capability Where other voltages are required the LM137 and LM137HV series provide an output voltage range to b47V The LM120 need only one external component a compensation capacitor at the output making them easy to apply Worst.
M51957AFP : Voltage Detecting, System Resetting ic.
NCP4420 : 6 a High Speed MOSFET Drivers. The NCP4420/NCP4429 are 6 A (peak), single output, MOSFET drivers. The is an inverting driver while the is a noninverting driver. These drivers are fabricated in CMOS for lower power and more efficient operation versus bipolar drivers. Both drivers have TTLcompatible inputs, which can be driven as high as VDD or as low 5 V without upset or damage.
PQ070XH01ZP : Low Voltage Operation Low Power Loss Voltage Regulator.
PTB48540C : 10-W Power-over-ethernet ISOlated Power Module Assembly The PTB48540 Series of Power Modules is Specifically Designed to Provide an ISOlated, Low-voltage Power Source to a Remote Powered Device (PD) in Power-over-ethernet (PoE) Applications. These Modules Are Rated 10 W And Incorporate All The Necessary Interface Requirements to Comply With Ieee Std.
R1170Dxxxx : 800mA Ultra Low on Resistance LDO.
SG1524 : Regulating Pulse Width Modulator.
TC53 : The TC53 is a Low Power Voltage Detector. Highly Accurate: ±2% Low Power Consumption: 1.0µA, Typ. Detect Voltage Range: to 6.0V and 7.7V Operating Voltage: to 10.0V Output Configuration: Open-Drain or CMOS Space-Saving 5-Pin SOT-23A Package The is a low power voltage detector. Typical supply current consumption is only at an input voltage of 2V. The voltage detection threshold setting is factory-programmed.
TPS2330D : Single Hot Swap Power Controller With Circuit Breaker And Power-good Reporting.
TPS76515 : Ultra-low Quiescient Current 150-ma Low-dropout Voltage Regulators. TPS76550, TPS76501 ULTRA-LOW QUIESCIENT CURRENT 150-mA LOW-DROPOUT VOLTAGE REGULATORS 150-mA Low-Dropout Voltage Regulator Available 3.3-V, 5.0-V Fixed Output and Adjustable Versions Dropout Voltage 85 mV (Typ) mA (TPS76550) Ultra-Low 35-µA Typical Quiescent Current 3% Tolerance Over Specified Conditions for Fixed-Output Versions Open Drain Power Good.
TPS79201DBVR : ti TPS79201, Ultra Low Noise, High Psrr, Fast RF, High-Enable, 100mA Low Dropout Regulator.
UC282T-2 : ti UC282-2, Fast Transient Response 3 Ampere Low Dropout (LDO) Regulator.
AP2145 : 0.5A SINGLE CHANNEL CURRENT-LIMITED POWER SWITCH The AP2145 and AP2155 are integrated high-side power switches optimized for Universal Serial Bus (USB) and other hot-swap applications. The family of devices complies with USB 2.0 and available with both polarities of Enable input. They offer current and thermal limiting and short circuit protection as well.
PT7M7343YTA : µ µ µ µ µP Supervisor Circuits The PT7M7xxx family microprocessor (µP) supervisory circuits are targeted to improve reliability and accuracy of power-supply circuitry in µP systems. These devices reduce the complexity and number of components required to monitor power-supply and battery functions..
CM2830AGFIN92 : 300mA CMOS LDO The CM2830/CM2830A family is a positive voltage linear regulator developed utilizing CMOS technology featured low quiescent current (30 Ă‚µA typ.), low dropout voltage, and high output voltage accuracy. Built-in low on-resistance transistor provides low dropout voltage and large output current. A 2.2 Ă‚µF or greater can be used as an output.