Qdatasheet_Logo
Integrated circuits, Transistor, Semiconductors Search and Datasheet PDF Download Site

P/N + Description + Content Search

Searchword :
Description : 3.0/3.3V I²C combination serial RTC, NVRAM supervisor and microprocessor supervisor

Description
The M41ST85W is a combination Serial Real-Time Clock, Microprocessor supervisor, and NVRAM supervisor. It is built in a low power CMOS SRAM process and has a 64-byte memory space with 44 bytes of NVRAM and 20 memory-mapped RTC registers (see Table 2 on page 20). The RTC registers are configured in binary coded decimal (BCD) format.

Features
■ Automatic battery switchover and WRITE protect for:
– Internal serial RTC and
– External low power SRAM (LPSRAM)
■ 400kHz I2C serial interface
■ 3.0/3.3V operating voltage
–VCC= 2.7 to 3.6V
■ Ultra-low battery supply current of 500nA (max)
■ RoHS compliant
– Lead-free second level interconnect
Serial RTC features
■ 400kHz I2C
■ 44 bytes of general purpose NVRAM
■ Counters for:
– Seconds, minutes, hours, day, date, month, and year
–Century
– 10ths/100ths of seconds
– Clock calibration register allows compensation for crystal variations over temperature
■ Programmable alarm with repeat modes
– Functions in battery back-up mode
■ Power-down timestamp (HT Bit)
■ 2.5 to 5.5V oscillator operating voltage Microprocessor supervisor features
■ Programmable watchdog
– 62.5ms to 128s time-out period
■ Early power-fail warning circuit (PFI/PFO) with 1.25V precision reference
■ Power-on reset/low voltage detect
– Open drain reset output
– Reset voltage, VPFD= 2.60V (nom)
– Two reset input pins
– Watchdog can be steered to reset output
 

Part Name(s) : CM3404 CM3404-40ST
CALMIRCO
California Micro Devices Corp
Description : Micropower Supply Voltage supervisor (SVS)

Micropower Supply Voltage supervisor (SVS)

Part Name(s) : AAT1015
AAT
Advanced Analog Technology, Inc.
Description : 3-CHANNEL PC POWER SUPPLY supervisor

GENERAL DESCRIPTION
The AAT1015 is a 3-channel PC switching power supply supervisor that provides Over Voltage Protection (OVP), Under Voltage Protection (UVP), and Power Good Indicator to monitor and control the output of the switching power supply system.
   
FEATURES
● 3-Channel PC Power Supply supervisor
● Over Voltage Protection for 3.3V, 5V, 12V
    Output
● Under Voltage Protection for 3.3V, 5V
    Output with 75 ms Enable Delay
● Fault Protection Output with Open Drain
    Output
● Open Drain Power Good Output
● 300 ms Power Good Delay
● 2.3 ms ONCTL to FPO Turn Off Delay
● 38 ms ONCTL Signal De-Bounce
● 73 µs De-Bounce
● Latch Function Controlled by ONCTL and
    Protection Input.
   

Supertex
Supertex Inc
Description : Current-Mode PWM Controller with supervisor

General Description
The HV9606 PWM controller allows the design of high efficiency (>90%) power supplies for distributed board mounted power (BMP) applications. Due to its high frequency capability it can provide high currents (20A @ 3.3V) with small transformers and due to its low internal operating voltage and current is also able to achieve high efficiencies in low power applications.

Features
❐ Synchronous Forward, Forward, and Flyback Controller
❐ Lowest External Parts Count, Smallest Magnetics
❐ Eliminates Bootstrap Transformer Winding
supervisor Circuit Reduces Output Capacitance* up to 40%
supervisor Circuit Functions as µP Supply Monitor and POR
❐ 15V to 250V Start-Up Regulator with START/STOP Control
❐ <1mA Operating, <6µA Standby Input Current
❐ VDD Powered Operation down to 2.9V
❐ Charge Pump Gate Drive Supply
❐ Programmable Soft Start
❐ Under Voltage Lockout with Programmable Hysteresis
❐ <50% Duty Cycle Operation
❐ 15kHz to 400kHz Fixed Frequency PWM Operation
❐ Fault Tolerant Peer-to-Peer Synchronization
❐ Precision !1% Band Gap Voltage Reference
❐ Current Sense Leading Edge Blanking
❐ Small SSOP-20 Footprint

Applications
❐ Powered Ethernet and VoIP Terminals
❐ Cable Modems and Amplifiers
❐ ISDN Network Terminations, Terminals and Adapters
❐ Network Equipment
❐ Servers, PCs and Peripheral Equipment
❐ Telecommunication Systems and Terminals
❐ Distributed Board Mounted Power
❐ Battery Backup Systems
❐ Portable Power Applications
❐ Automotive and Heavy Equipment

SUTEX
Supertex Inc
Description : Current-Mode PWM Controller with supervisor

General Description
The HV9606 PWM controller allows the design of high efficiency (>90%) power supplies for distributed board mounted power (BMP) applications. Due to its high frequency capability it can provide high currents (20A @ 3.3V) with small transformers and due to its low internal operating voltage and current is also able to achieve high efficiencies in low power applications.

Features
❐ Synchronous Forward, Forward, and Flyback Controller
❐ Lowest External Parts Count, Smallest Magnetics
❐ Eliminates Bootstrap Transformer Winding
supervisor Circuit Reduces Output Capacitance* up to 40%
supervisor Circuit Functions as µP Supply Monitor and POR
❐ 15V to 250V Start-Up Regulator with START/STOP Control
❐ <1mA Operating, <6µA Standby Input Current
❐ VDD Powered Operation down to 2.9V
❐ Charge Pump Gate Drive Supply
❐ Programmable Soft Start
❐ Under Voltage Lockout with Programmable Hysteresis
❐ <50% Duty Cycle Operation
❐ 15kHz to 400kHz Fixed Frequency PWM Operation
❐ Fault Tolerant Peer-to-Peer Synchronization
❐ Precision !1% Band Gap Voltage Reference
❐ Current Sense Leading Edge Blanking
❐ Small SSOP-20 Footprint

Applications
❐ Powered Ethernet and VoIP Terminals
❐ Cable Modems and Amplifiers
❐ ISDN Network Terminations, Terminals and Adapters
❐ Network Equipment
❐ Servers, PCs and Peripheral Equipment
❐ Telecommunication Systems and Terminals
❐ Distributed Board Mounted Power
❐ Battery Backup Systems
❐ Portable Power Applications
❐ Automotive and Heavy Equipment

Fairchild
Fairchild Semiconductor
Description : 3-Pin µC supervisor Circuit

General Description
The FM1233E is a supervisor circuit that monitors a microprocessor power supply or other system voltage and issues a reset pulse when a fault condition exists. Several different threshold voltages are offered to accommodate 3V systems with different tolerances.

Features
■ Precision monitoring of 3.3V and lower voltage microprocessor systems
■ VTH values of 2.88V, 2.72V
■ Automatic restart of microprocessor after power failure
■ 140ms (min) power-on RESET delay (typ.: 256ms)
■ Internal 5kΩ pull-up resistor
■ Other reset choices available: 32 to 128ms
■ Operating Temperature -40°C to +105°C
■ SOT23-3 package

Description : 3-Pin Microcontroller Power Supply supervisor

3-Pin Microcontroller Power Supply supervisor

The IMP809/IMP810 are 3.0V, 3.3V and 5.0V power supply supervisor circuits optimized for low-power microprocessor (µP), microcontroller (µC) and digital systems. The IMP809/810 are improved drop-in replacements for the Maxim MAX809/810 and feature 60% lower supply current.

Key Features
◆ Improved Maxim MAX809/MAX810 replacement
    — Lower supply current…6µA
    — 80% lower maximum supply current
◆ Monitor 5V, 3.3V and 3V supplies
◆ 140ms min. reset pulse width
◆ Active-low reset valid with 1.1V supply (IMP809)
◆ Small 3-pin SOT-23 package
◆ No external components
◆ Specified over full temperature range
    — – 40°C to 105°C

Applications
◆ Embedded controllers
◆ Battery operated systems
◆ Intelligent instruments
◆ Wireless communication systems
◆ PDAs and handheld equipment

Fairchild
Fairchild Semiconductor
Description : 3-Pin µC supervisor Circuit

General Description
The FM1233D is a supervisor circuit that monitors a microprocessor power supply or other system voltage and issues a reset pulse when a fault condition exists. Several different threshold voltages are offered to accommodate 5V systems with different tolerances.

Features
■ Precision monitoring of 5V and lower voltage microprocessor systems
■ VTH values of 4.62V, 4.38V and 4.12V
■ Automatic restart of microprocessor after power failure
■ 140ms (min) power-on RESET delay (typ.: 256ms)
■ Internal 5kΩ pull-up resistor
■ Other reset choices available: 32 to 128ms
■ Operating Temperature -40°C to +105°C
■ SOT23-3 package

Part Name(s) : SG6108 SG6108DZ
Fairchild
Fairchild Semiconductor
Description : Power Supply supervisor + PWM

DESCRIPTION
The SG6108 controller is designed for desktop PC switching mode power supplies. It provides everything
necessary to monitor and control the output of the power supply. Remote ON/OFF control, power good circuitry,  over-voltage protection, over-power protection, and over-current protection are all included. The SG6108 directly senses all the output rails for over voltage conditions without requiring external dividers.

FEATURES
PC half-bridge (or 494) power supply supervisor + PWM
Highly Integrated and Few external components required
Over voltage protection 3.3V/5V/12V (two 12V)
Under voltage protection 3.3V/5V/12V (two 12V)
Under voltage protection for –12V and/or –5V
Over current protection 3.3V/5V/12V (two 12V)
Over power protection
Short circuit protection
Power-down warning circuitry
Power good circuitry
Delay time for PSON and PG signals
Remote ON/OFF function
On-Chip oscillator and Error amplifier
Latching PWM for cycle-by-cycle switching
Soft-start
Maximum 48% duty cycle

APPLICATIONS
Switching mode power supplies for computers such as ATX, NLX, and SFX (micro-ATX).

ETC
Unspecified
Description : Power Supply supervisor + Regulator + PWM

[System General Corp]

DESCRIPTION
SG6105D1 controller is designed for switching mode power supply for desktop PCs. It provides all the functions necessary to monitor and control the output of the power supply. Remote ON/OFF control, power good circuitry, some protection features against over-voltage and over-power are implemented. It directly senses all the output rails for OVP without the need of external dividers.

FEATURES
■ PC half-bridge (or 494) power supply supervisor + two 431 + PWM
■ High integration & few external components
■ Over-voltage protection for 3.3V, 5V and 12V
■ Under-voltage protection for 3.3V, 5V and 12V
■ Under-voltage protection for –12V and/or –5V
■ Over-power and short-circuit protection
■ Power-down warning circuitry
■ Power good circuitry
■ Delay time for PSON and PG signal
■ Remote ON/OFF function
■ On-chip oscillator and error amplifier
■ Two shunt regulator for 3.3V and 5V-Standby
■ Latching PWM for cycle-by-cycle switching
■ Push-pull PWM operation and totem pole outputs
■ Soft-start and maximum 93% duty cycle

APPLICATIONS
Switching mode power supply for Computers, such as:
   ATX NLX SFX (micro-ATX)

12345678910 Next


All Rights Reserved © qdatasheet.com [ Privacy Policy ] [ Contact Us ]