Document
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X40030, X40031, X40034, X40035
Data Sheet May 25, 2006 FN8114.1
PRELIMINARY
Triple Voltage Monitor with Integrated CPU Supervisor
FEATURES • Triple voltage detection and reset assertion —Standard reset threshold settings see selection table on page 5. —Adjust low voltage reset threshold voltages using special programming sequence —Reset signal valid to VCC = 1V —Monitor three seperate voltages • Fault detection register • Selectable power on reset timeout (0.05s, 0.2s, 0.4s, 0.8s) • Selectable watchdog timer interval (25ms, 200ms, 1.4s or off) • Debounced manual reset input • Low power CMOS —25µA typical standby current, watchdog on —6µA typical standby current, watchdog off • 400kHz 2-wire interface • 2.7V to 5.5V power supply operation • Available in 14 Ld SOIC, TSSOP packages • Monitor voltages: 5V to 0.9V www.DataSheet4U.com • Independent core voltage monitor • Pb-free plus anneal available (RoHS compliant) APPLICATIONS • Communication equipment —Routers, hubs, switches —Disk arrays, network storage BLOCK DIAGRAM
V3MON
• Industrial systems —Process control —Intelligent instrumentation • Computer systems —Computers —Network servers DESCRIPTION The X40030, X40031, X40034, X40035 combine power-on reset control, watchdog timer, supply voltage supervision, second and third voltage supervision, and manual reset, in one package. This combination lowers system cost, reduces board space requirements, and increases reliability. Applying voltage to VCC activates the power on reset circuit which holds RESET/RESET active for a period of time. This allows the power supply and system oscillator to stabilize before the processor can execute code. Low VCC detection circuitry protects the user’s system from low voltage conditions, resetting the system when VCC falls below the minimum VTRIP1 point. RESET/RESET is active until VCC returns to proper operating level and stabilizes. A second and third voltage monitor circuit tracks the unregulated supply to provide a power fail warning or monitors different power supply voltage. Three common low voltage combinations are available, however, Intersil’s unique circuits allows the threshold for either voltage monitor to be reprogrammed to meet specific system level requirements or to fine-tune the threshold for applications requiring higher precision.
+ V3 Monitor Logic VTRIP3
V3FAIL
VCC or V2MON* + VTRIP2
V2MON
V2 Monitor Logic
V2FAIL
SDA WP
Data Register Command Decode Test & Control Logic
Fault Detection Register Status Register
Watchdog and Reset Logic
WDO
MR
SCL
VCC
(V1MON)
+ VCC Monitor Logic VTRIP1
Power on, Manual Reset Low Voltage Reset Generation
RESET X40030/34 RESET X40031/35 LOWLINE
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2005-2006. All Rights Reserved All other trademarks mentioned are the property of their respective owners.
X40030, X40031, X40034, X40035 Ordering Information
PART NUMBER PART MARKING MONITORED VCC RANGE VTRIP1 RANGE VTRIP2 RANGE VTRIP3 RANGE TEMP. RANGE (°C) PACKAGE PKG. DWG. #
PART NUMBER WITH RESET X40034S14-A X40034S14Z-A (Note) X40034S14-B X40034S14Z-B (Note) X40034S14-C X40034S14I-A X40034S14IZ-A (Note) X40034S14I-B X40034S14IZ-B (Note) X40034S14I-C X40034V14-A X40034V14Z-A (Note) X40034V14-B X40034V14Z-B (Note) X40034V14-C X40034V14I-A X40034V14IZ-A (Note) X40034V14I-B X40034V14IZ-B (Note) X40034V14I-C X40030S14-C X40030S14I-C X40030V14-C X40030V14I-C X40030S14-B X40030S14Z-B (Note) X40030S14I-B X40030S14IZ-B (Note) X40030V14-B X40030V14Z-B (Note) X40034S A X40034S ZA X40034S B X40034S ZB X40034S C X40034S IA X40034S ZIA X40034S IB X40034S ZIB X40034S IC X4003 4VA X4003 4VZA X4003 4VB X4003 4VZB X4003 4VC X4003 4VIA X4003 4VZIA X4003 4VIB X4003 4VZIB X4003 4VIC X40030S C X40030S IC X4003 0VC X4003 0VIC X40030S B X40030S ZB X40030S IB X40030S ZIB X4003 0VB X4003 0VZB 1.7 to 5.5 4.4V ±50mV 2.6V ±50mV 1.0 to 3.6 1.7 to 3.6 2.9V ±50mV 1.0V ±50mV 2.2V ±50mV 1.7V ±50mV 2.9V ±50mV 1.0 to 3.6 1.3 to 5.5 1.0V ±50mV 1.3V ±50mV 3.1V ±50mV 2.9V ±50mV 1.0 to 3.6 1.3 to 5.5 1.0V ±50mV 1.3V ±50mV 3.1V ±50mV 2.9V ±50mV 1.0 to 3.6 1.3 to 5.5 1.0V ±50mV 1.3V ±50mV 3.1V ±50mV 2.9V ±50mV 1.3 to 5.5 4.6V ±50mV 1.3V ±50mV 3.1V ±50mV 0 to 70 0 to 70 0 to 70 0 to 70 0 to 70 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 0 to 70 0 to 70 0 to 70 0 to 70 0 to 70 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 0 to 70 -40 to +85 0 to 70 -40 to +85 0 to 70 0 to 70 -40 to +85 -40 to +85 0 to 70 0 to 70 14 Ld SOIC (150 mil) 14 Ld SOIC (150 mil) (Pb-free) 14 Ld SOIC (150 mil) 14 Ld SOIC (150 mil) (Pb-free) 14 Ld SOIC (150 mil) 14 Ld SOIC (150 mil) 14 Ld SOIC (150 mil) (Pb-free) 14 Ld SOIC (150 mil) 14 Ld SOIC (150 mil) (Pb-free) 14 Ld SOIC (150 mil) M14.15 M14.15 M14.15 M14.15 M14.15 M14.15 M14.15 M14.15 M14.15 M14.15
14 Ld TSSO.