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Details, datasheet, quote on part number:NCP803
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Datasheet text preview:
NCP803 Very Low Supply Current 3-Pin Microprocessor Reset Monitor
The NCP803 is a costeffective system supervisor circuit designed to monitor VCC in digital systems and provide a reset signal to the host processor when necessary. No external components are required. The reset output is driven active within 10 µsec of VCC falling through the reset voltage threshold. Reset is maintained active for a minimum of 140 msec after VCC rises above the reset threshold. The NCP803 has an open drain activelow RESET output. The output of the NCP803 is guaranteed valid down to VCC = 1.0 V and is available in a SOT23 package. The NCP803 is optimized to reject fast transient glitches on the VCC line. Low supply current of 1.0 µA (VCC = 3.2 V) make this device suitable for battery powered applications.
Features http://onsemi.com MARKING DIAGRAM
3 1 2 3 SOT23 (TO236) CASE 318 1 xxx = Specific Device Code M = Monthly Date Code xxxM 2
· Precision VCC Monitor for 2.5 V, 3.0 V, 3.3 V, and 5.0 V Supplies · Precision Monitoring Voltages from 1.6 V to 4.9 V Available · · · · · · · · · · ·
in 100 mV Steps 140 msec Guaranteed Minimum RESET Output Duration RESET Output Guaranteed to VCC = 1.0 V Low 1.0 µA Supply Current VCC Transient Immunity Small SOT23 Package No External Components Wide Operating Temperature: 40°C to 105°C Computers Embedded Systems Battery Powered Equipment Critical µP Power Supply Monitoring
VCC VCC NCP803 C = 100 nF RESET GND 0 VCC µP RESET GND 0
PIN CONFIGURATION
GND 1
3
VCC
RESET
2 SOT23* (Top View)
Typical Applications
NOTE: *SOT23 is equivalent to JEDEC (TO236)
ORDERING INFORMATION
Device NCP803SNxxxT1 Package SOT23 Shipping 3000/Tape & Reel
NOTE: The "xxx" denotes a suffix for Vcc voltage threshold options see page 6 for more details.
Rpullup
DEVICE MARKING INFORMATION
See general marking information in the device marking section on page 6 of this data sheet.
Figure 1. Typical Application Diagram
© Semiconductor Components Industries, LLC, 2002
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January, 2002 Rev. 2
Publication Order Number: NCP803/D
NCP803
ABSOLUTE MAXIMUM RATINGS* (Note 1)
Rating Supply Voltage (VCC to GND) RESET Input Current, VCC Output Current, RESET dV/dt (VCC) Thermal Resistance, Junction to Air Operating Temperature Range Storage Temperature Range Lead Temperature (Soldering, 10 Seconds) Latchup performance: Negative *Maximum Ratings are those values beyond which damage to the device may occur. 1. This device series contains ESD protection and exceeds the following tests: Human Body Model 4000 V per MILSTD883, Method 3015. Machine Model Method 400 V. 2. The maximum package power dissipation limit must not be exceeded. TJ(max) * TA with TJ(max) = 150°C PD + Rq J A Rq J A TA Tstg Tsol ILatchup 150 Symbol VCC Value 6.0 0.3 to (VCC + 0.3) 20 20 100 491 40 to +105 65 to +150 +260 Unit V V mA mA V/µsec °C/W °C °C °C mA
ELECTRICAL CHARACTERISTICS TA = 40°C to +105°C unless otherwise noted. Typical values are at TA = +25°C. (Note 3)
Characteristic VCC Range TA = 0°C to +70°C TA = 40°C to +105°C Supply Current VCC = 3.3 V TA = 40°C to +85°C TA = 85°C to +105°C VCC = 5.5 V TA = 40°C to +85°C TA = 85°C to +105°C Reset Threshold (Note 4) NCP803SN308 TA = +25°C TA = 40°C to +85°C TA = +85°C to +105°C NCP803SN293 TA = +25°C TA = 40°C to +85°C TA = +85°C to +105°C ICC VTH 3.04 3.00 2.92 2.89 2.85 2.78 3.08 2.93 2.63 3.11 3.15 3.23 2.96 3.00 3.08 2.66 2.70 2.76 0.5 0.8 1.2 2.0 1.8 2.5 V Symbol Min 1.0 1.2 Typ Max 5.5 5.5 µA Unit V
NCP803SN263 2.59 TA = +25°C 2.55 TA = 40°C to +85°C 2.50 TA = +85°C to +105°C 3. Production testing done at TA = 25°C, over temperature limits guaranteed by design. 4. Contact your ON Semiconductor sales representative for other threshold voltage options.
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NCP803
ELECTRICAL CHARACTERISTICS (continued) TA = 40°C to +105°C unless otherwise noted. Typical values are at TA = +25°C.
(Note 5) Characteristic Reset Temperature Coefficient VCC to Reset Delay VCC = VTH to (VTH 100 mV) Reset Active Timeout Period RESET Output Voltage Low VCC = VTH 0.2 V 1.6 V v VTH v 2.0 V, ISINK = 0.5 mA 2.1 V v VTH v 4.0 V, ISINK = 1.2 mA 4.1 V v VTH v 4.9 V, ISINK = 3.2 mA RESET Leakage Current VCC u VTH, RESET Deasserted VOL Symbol Min 140 Typ 30 10 240 Max 460 0.3 Unit ppm/°C µsec msec V
ILEAK
1
µA
5. Production testing done at TA = 25°C, over temperature limits guaranteed by design.
PIN DESCRIPTION
Pin No. 1 2 3 Symbol GND Ground Description
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ Á
RESET VCC RESET output remains low while VCC is below the reset voltage threshold, and for 240 msec (typ.) after VCC rises above reset threshold. Supply Voltage: C = 100 nF is recommended as a bypass capacitor between VCC and GND.
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