|
Details, datasheet, quote on part number:X80120Q20I
| |
| Part: | X80120Q20I |
| Category: | Power Management => Power Distribution/Switches => Hot-Swap Controllers => Hotswap & Power Sequencers |
| Description: | Voltage Supervisor/sequencerquad Programmable Time Delay With Local/remote Voltage Monitors |
| Company: | Xicor, Inc. |
| Datasheet: | Download X80120Q20I datasheet File size : 511 kB |
| Request For quote: | Find where to buy X80120Q20I
|
| |
Datasheet text preview:
New Industry Features
Programmable time sequencing Integrated oscillator and dividers No crystal required Dual voltage monitors Remote delay selection Remote monitor/switch diagnostics Cascade delays of multiple devices
X80120/X80121
Voltage Supervisor/Sequencer
Dual Programmable Time Delay with Local/ Remote Voltage Monitors
· · · · · · 100 ms to 5 secs Selectable Delay Switches ATE or Data Acquisition Timing Applications Datapath/Memory Timing Applications Data Pipeline Timing Applications Batch Timer/Sequencers Adjustable Duty Cycle Applications
FEATURES · Dual voltage Monitor and Sequencing -- Two independent voltage monitors -- Two time delay circuits (in circuit programmable) -- Remote delay via SMBus -- Programmable voltage thresholds and delay times -- Sequence up to 3 power supplies. · Fault detection register -- Remote diagnostics of voltage fail event. · Debounced manual reset input · Manufacturing/Configuration Memory -- 2Kbits of EEPROM -- 400kHz SMBus interface · Available packages -- 20-lead Quad No-Lead Frame (QFN -- 5 x 5 mm) APPLICATIONS · · · · · · · · · · · General Purpose Timers Long Time Delay Generation Cycle Timers / Waveform Generation ON/OFF Delay Timers Supply Sequencing for Distributed Power Programmable Delay Event Sequencing Multiple DC-DC ON/OFF Sequencing Voltage Window Monitoring with Reset ON/OFF switches with Programmable Delay Voltage Supervisor with Programmable Output Delays Databus Power Sequencing
DESCRIPTION The X80120 is a voltage supervisor/sequencer with two built in voltage monitors. This allows the designer to monitor up to two voltages and sequence up to three events. Low voltage detection circuitry protects the system from power supply failure or "brown out" conditions, resetting the system and resequencing the voltages when any of the monitored inputs fall below the minimum threshold level. The RESET pin is active until all monitored voltages reach proper operating levels and stabilize for a selectable period of time. Five common low voltage combinations are available, however, Xicor's unique circuits allow the any voltage monitor threshold to be reprogrammed for special needs or for applications requiring higher precision. A manual reset input provides debounce circuitry for minimum reset component count. Activating the manual reset both controls the RESET output and resequences the supplies through control of the ViFAIL pins. The X80120 has 2kb of EEPROM for system configuration, manufacturing or maintenance information. This memory is protected to prevent inadvertent changes to the contents.
BLOCK DIAGRAM RESET SDA
Bus Interface
VSS
VCC MR
POR
Reset Logic and Delay
Control and Fault Registers
SCL WP A0 A1
VP
VMON Logic OSC Divider
Reset
EEPROM 2kbits 4
VSS
V1MON
VREF1
V1GDO
4
Select 0.1s 0.5s 1s 5s
V4GDO
V4MON
VREF4
delay1 delay4
Delay circuit repeated 2 times
VSS
REV 1.11 4/3/03 www.xicor.com
VSS
Characteristics subject to change without notice
1 of 18
X80120/X80121 Preliminary Information
PIN OUTS QFN package (Top view) ORDERING INFORMATION ORDER NUMBER X80120Q20I X80121Q20I VTRIP1 4.5 3.0 VTRIP4 0.9 0.9 Package QFN QFN
VCC
VSS
20 19 18 17 16 V4GDO V4MON DNC VCC DNC 1 2 3 4 5 6 7 8 9 10 15 14 WP RESET V1GDO V1MON SCL
(5mm x 5mm)
NC
MR 13 12 11 SDA
A0 VCC
ABSOLUTE MAXIMUM RATINGS
DNC
VP
A1
COMMENT Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress rating only; functional operation of the device (at these or any other conditions above those listed in the operational sections of this specification) is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. RECOMMENDED OPERATING CONDITIONS Temperature Industrial (I) Min. 40°C Supply Voltage VCC = 4.5 to 5.5V Max. +85°C
Temperature under bias .......... 65°C to +135°C Storage temperature ...... 65°C to +150°C V1MON, V4MON pins ........ 5.5V V1GDO, V4GDO pins.......... 5.5V RESET pin .. 5.5V SDA, SCL, WP, A0, A1 pins .......... 5.5V MR pin......... 5.5V VP pin ........... 14V D.C. output current ..... 5mA Lead temperature (soldering, 10 seconds)........ 300°C
ELECTRICAL CHARACTERISTICS (Standard Settings) (Over the recommended operating conditions unless otherwise specified). Symbol Parameter Min. 4.5 1.0 9 Typ. Max. 5.5 2.5 12 10 10 15 5 x 0.3 5.5 0.4 Unit Test Conditions
DC Characteristics Supply Operating Range VCC ICC Supply Current VP EEPROM programming voltage IP(3) Programming Current ILI Input Leakage Current (MR) ILO Output Leakage Current (V1GDO, V4GDO, RESET) Input LOW Voltage (MR) VIL VIH Input HIGH Voltage (MR) VOL Output LOW Voltage (RESET, V1GDO, V4GDO)
REV 1.11 4/3/03
V mA fSCL = 0 kHz V mA µA VIL = GND to VCC µA V V V
-0.5 5 x 0.7
IOL = 4.0 mA
2 of 18
www.xicor.com
Characteristics subject to change without notice
X80120/X80121 Preliminary Information
ELECTRICAL CHARACTERISTICS (Continued)(Standard Settings) (Over the recommended operating conditions unless otherwise specified). Symbol COUT(1) VTRIP1 Parameter Output Capacitance (RESET, V1GDO, V4GDO) V1MON Trip Point Voltage (Range) Min. Typ. Max. 8 4.7 4.55 3.05 3.5 0.95 -100 Unit Test Conditions pF VOUT = 0V V
X80120 X80121
VTRIP4 VREF V4MON Trip Point Voltage
All Versions
Voltage Reference Long Term Drift AC Characteristics tMR(3) Minimum time high for reset valid on the MR pin Delay from MR enable to tMRE(3) V1GDO LOW tRESET_E(3) Delay from ViFAIL to RESET valid LOW tDPOR(3) Internal Device Delay on Power up tTO(3) ViFAIL turn off time
2.20 4.45 2.95 0.85 0.85 0 5
4.50 3.00 0.90
V mV 10 years µs
1.6 1 45 50 50 55
µs µs ms ns
ELECTRICAL CHARACTERISTICS (Programmable Parameters) (Over the recommended operating conditions unless otherwise specified). Symbol tSPOR Parameter Delay before RESET assertion TPOR1 = 0 TPOR0 = 0 TPOR1 = 0 TPOR0 = 1 TPOR1 = 1 TPOR0 = 0 TPOR1 = 1 TPOR0 = 1 Time Delay used in Power Sequencing (i = 1, 4) TiD1 = 0 TiD0 = 0 TiD1 = 0 TiD0 = 1 TiD1 = 1 TiD0 = 0 TiD1 = 1 TiD0 = 1 Min. 90 450 0.9 4.5 Typ. 100 500 1 5 Max. 110 550 1.1 5.5 Unit ms ms s s Test Conditions Factory Default (3) (3) (3)
tDELAYi
90 450 0.9 4.5
100 500 1 5
110 550 1.1 5.5
ms ms s s
Factory Default (3) (3) (3)
REV 1.11 4/3/03
www.xicor.com
Characteristics subject to change without notice
3 of 18
|
|
