IMP809
IMP809 is 3-Pin Microcontroller Power Supply Supervisor manufactured by IMP Inc.
feature
60% lower supply current. A reset signal is issued if the power supply voltage drops below a preset reset threshold and is asserted for at least 140ms after the supply has risen above the reset threshold. The IMP809 has an active-low RESET output that is guaranteed to be in the correct state for VCC down to 1.1V. The IMP810 has an active-high RESET output. The reset parator is designed to ignore fast transients on VCC. Low supply current makes the IMP809/IMP810 ideal for use in portable and battery operated equipment. The IMP809/IMP810 are available in a pact 3-pin SOT23 package. Six voltage thresholds are available to support 3V to 5V systems:
Key Features x Improved Maxim MAX809/MAX810 replacement
- Lower supply current…6µA
- 80% lower maximum supply current x Monitor 5V, 3.3V and 3V supplies x 140ms min. reset pulse width x Active-low reset valid with 1.1V supply (IMP809) x Small 3-pin SOT-23 package x No external ponents x Specified over full temperature range
- - 40°C to 105°C
Applications x x x x x Embedded controllers Battery operated systems Intelligent instruments Wireless munication systems PDAs and handheld equipment
Reset Threshold Suffix Voltage (V)
L M J T S R 4.63 4.38 4.00 3.08 2.93 2.63
Block Diagrams
VCC VCC
IMP809 (IMP810)
RESET (RESET) GND RESET Input
VCC µP
809/10_01.eps
IMP, Inc.
San Jose, CA
408-432-9100/.impweb.
IMP809, IMP81 0
Pin Configuration
SOT23
GND 1 IMP809 (IMP810)
3 VCC
(RESET) RESET 2
809/10_02.eps
Ordering Information
Part Number 1 Reset Threshold (V) IMP809 Active LOW Reset
IMP809LEUR-T IMP809MEUR-T IMP809JEUR-T IMP809TEUR-T IMP809SEUR-T IMP809REUR-T 4.63 4.38 4.00 3.08 2.93 2.63 4.63 4.38 4.00 3.08 2.93 2.63
Temperature Range
- 40°C to +105°C
- 40°C to +105°C
- 40°C to +105°C
- 40°C to +105°C
- 40°C to +105°C
- 40°C to +105°C
- 40°C to +105°C
- 40°C to +105°C
- 40°C to +105°C
- 40°C to...
