MIC2777_05 Datasheet, PDF (2/8 Pages) Micrel Semiconductor – Dual Micro-Power Low Voltage Supervisor

MIC2777
Micrel, Inc.
Standard Voltage Options*
Voltage
Code
46
Typical
Application (V_DD)
5.0V ±5%
Nominal Threshold
Voltage (V_TH)
4.68
44
5.0V ±10%
4.43
31
3.3V ±5%
3.09
29
3.3V ±10%
2.93
28
3.0V ±5%
2.81
26
2.85V ±5%
2.67
25
2.70V ±5%
2.53
23
2.5V ±5%
2.34
22
2.4V ±5%
2.25
17
1.8V ±5%
1.69
*There are ten standard versions available with an order increment of 3000 pieces. Samples of standard versions are
normally available from stock. Contact factory for information on non-standard versions. Available in tape-and-reel only.
Pin Configuration
RST GND /RST
3
2
1
4
5
IN
VDD
SOT-23-5 (M5)
Pin Description
Pin Number
1
2
3
4
5
Pin Name
/RST
GND
RST
IN
VDD
Pin Function
Digital (Output): Asserted low whenever V_IN or V_DD falls below the reference
voltage. It will remain asserted for no less than 140ms after V_IN and V_DD
return above the threshold limits.
Ground
Digital (Output): Asserted high whenever V_IN or V_DD falls below the refer-
ence voltage. It will remain asserted for no less than 140ms after V_IN and
V_DD return within above the threshold limit.
Analog (Input): The voltage on this pin is compared to the internal 300mV
reference. An undervoltage condition will trigger a reset sequence. Manual
reset capability can be achieved by adding a switch between this pin and
ground.
Analog (Input): Power supply input for internal circuitry and input to the fixed
voltage monitor: The voltage on this pin is compared against the internal
voltage reference. An undervoltage condition will trigger a reset sequence.
MIC2777
2
November 2005