MIC834 Datasheet, PDF (1/8 Pages) Micrel Semiconductor – Comparator with Reference Advance Information

MIC834
MIC834
Comparator with Reference
Final Information
Micrel
General Description
The MIC834 is a micropower, precision voltage comparator
with an on-chip voltage reference.
The threshold is adjusted by the choice of two external
resistors. Voltage detection threshold is accurate to 1.5%.
Supply current is extremely low (1.5µA, typical), making it
ideal for portable applications.
The MIC834 is supplied in Micrel’s IttyBitty™ 5-lead SOT-23-
5 package.
Features
• Optimized for PDAs, cellular telephones, pagers,
and other battery-powered devices
• Input and output can be pulled up to 6V
regardless of supply voltage
• High ±1.5% voltage threshold accuracy
• Built in hysteresis for noise suppression
• Extremely low 1.5µA typical supply current
• Immune to brief input transients
• 5-lead SOT-23 package
Applications
• PDAs
• Pagers
• Cordless phones
• Consumer electronics
• Embedded controllers
• Personal electronics
Ordering Information
Part Number
MIC834BM5
Marking
B12
Accuracy
1.5%
Temperature Range
–40°C to +85°C
Package
SOT-23-5
Typical Application
V_IN V_DD
V_PULL-UP
MIC834
R_PU
VDD OUT
5
4
R1
V_OUT
INP GND
1
2
V_REF = 1.24V
V_INP(max) = 6V
R2
V_PULL-UP(max) = 6V
1.5V ≤ V_DD ≤ 5.5V
IttyBitty™ is a trademark of Micrel, Inc.
Micrel, Inc. • 1849 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 [phone] • fax + 1 [phone] • http://www.micrel.com
September 2001
1
MIC834