Microchip logo
  • All
  • Products
  • Documents
  • Applications Notes
product primary image

MIC2774

Dual Voltage Supervisor w/ Active-Low Open-Drain

Status: In Production

Features:

  • Monitors two independent power supplies for under-voltage conditions
  • One fixed and one user adjustable input
  • Choice of factory-programmed thresholds
  • Adjustable input can monitor supplies as low as 0.3V
  • Generates 140ms (minimum) power-on reset pulse
  • Manual reset input
  • Choice of active-high, active-low, or open-drain activelow reset outputs
  • Inputs may be pulled above VDD(7V abs. max.)
  • Open-drain output can be pulled above VDD (7V abs max.)
  • /RST output valid down to 1.2V
  • Ultra-low supply current, 3.5µA typical
  • Rejects brief input transients
  • IttyBitty® 5-lead SOT-23 package
  • Pin compatible upgrade for MAX6306/09/12
View More
Overview
Documents
Development Environment
RoHS Information
Add To Cart

Device Overview

Summary

The MIC2774 is a dual power supply supervisor that provides under-voltage monitoring, manual reset capability, and power-on reset generation in a compact 5-pin SOT package. Features include two under-voltage detectors, one fixed and one adjustable, and a choice of reset outputs. One undervoltage detector compares VDD against a fixed threshold. Ten factory-programmed thresholds are available. The second, user-adjustable input is compared against a 300mV reference. This low reference voltage allows monitoring voltages lower than those supported by previous supervisor ICs. The reset outputs are asserted at power-on and any time either voltage drops below the programmed threshold voltages and remains asserted for 140ms (min.) after they subsequently rise back above the threshold boundaries. Manual reset functionality can be provided by a switch connected between ground and the /MR input. A wide choice of voltage thresholds provides for a variety of supply voltages and tolerances. Hysteresis is included to prevent chattering due to noise. Typical supply current is a low 3.5µA.

Additional Features
    • Monitors two independent power supplies for under-voltage conditions
    • One fixed and one user adjustable input
    • Choice of factory-programmed thresholds
    • Adjustable input can monitor supplies as low as 0.3V
    • Generates 140ms (minimum) power-on reset pulse
    • Manual reset input
    • Choice of active-high, active-low, or open-drain activelow reset outputs
    • Inputs may be pulled above VDD(7V abs. max.)
    • Open-drain output can be pulled above VDD (7V abs max.)
    • /RST output valid down to 1.2V
    • Ultra-low supply current, 3.5µA typical
    • Rejects brief input transients
    • IttyBitty® 5-lead SOT-23 package
    • Pin compatible upgrade for MAX6306/09/12
Parametrics
Name
Value
Product Type
Dual
Manual Reset
Yes
Operating Temp. Range (°C)
-40 to 85
Vcc Range (V)
1.5 - 5.5
Nominal Reset Voltage (V)
1.69, 2.25, 2.34, 2.53, 2.67, 2.81, 2.93, 3.09, 4.43, 4.68
Reset Type
Active Low
Output
Open-Drain
Typical Reset Pulse Width (ms)
140
Typical Supply Current (µA)
3.5

Documents

Jump to:

Development tools data is currently unavailable.

RoHS Information

Part Number
Device Weight (g)
Shipping Weight (grams)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
MIC2774H-29YM5-TR
0.017400
0.049000
5
SOT-23
-
NiPdAu
e4
MIC2774L-29YM5-TR
0.017400
0.049000
5
SOT-23
-
NiPdAu
e4
MIC2774N-29YM5-TR
0.017400
0.049000
5
SOT-23
-
NiPdAu
e4
MIC2774N-29YM5-TX
0.017400
0.049000
5
SOT-23
-
NiPdAu
e4
MIC2774N-31YM5-TR
0.017400
0.049000
5
SOT-23
-
NiPdAu
e4
MIC2774H-17YM5-TR
0.017400
0.049000
5
SOT-23
-
NiPdAu
e4
MIC2774H-22YM5-TR
0.017400
0.049000
5
SOT-23
-
NiPdAu
e4
MIC2774H-31YM5-TR
0.017400
0.049000
5
SOT-23
-
NiPdAu
e4
MIC2774H-44YM5-TR
0.017400
0.049000
5
SOT-23
-
NiPdAu
e4
MIC2774H-46YM5-TR
0.017400
0.049000
5
SOT-23
-
NiPdAu
e4
MIC2774L-17YM5-TR
0.017400
0.049000
5
SOT-23
-
NiPdAu
e4
MIC2774L-22YM5-TR
0.017400
0.049000
5
SOT-23
-
NiPdAu
e4
MIC2774L-28YM5-TR
0.017400
0.049000
5
SOT-23
-
NiPdAu
e4
MIC2774L-31YM5-TR
0.017400
0.049000
5
SOT-23
-
NiPdAu
e4
MIC2774L-44YM5-TR
0.017400
0.049000
5
SOT-23
-
NiPdAu
e4
MIC2774N-17YM5-TR
0.017400
0.049000
5
SOT-23
-
NiPdAu
e4
MIC2774N-22YM5-TR
0.017400
0.049000
5
SOT-23
-
NiPdAu
e4
MIC2774L-23YM5-TR
0.017400
0.049000
5
SOT-23
-
NiPdAu
e4
MIC2774H-23YM5-TR
0.017400
0.049000
5
SOT-23
-
NiPdAu
e4
MIC2774N-23YM5-TR
0.017400
0.049000
5
SOT-23
-
NiPdAu
e4
MIC2774L-46YM5-TR
0.017400
0.049000
5
SOT-23
-
NiPdAu
e4
MIC2774N-44YM5-TR
0.017400
0.049000
5
SOT-23
-
NiPdAu
e4
MIC2774N-46YM5-TR
0.017400
0.049000
5
SOT-23
-
NiPdAu
e4
MIC2774L-25YM5-TR
0.017400
0.049000
5
SOT-23
-
NiPdAu
e4
MIC2774L-26YM5-TR
0.017400
0.049000
5
SOT-23
-
NiPdAu
e4
MIC2774N-25YM5-TR
0.017400
0.049000
5
SOT-23
-
NiPdAu
e4
MIC2774N-26YM5-TR
0.017400
0.049000
5
SOT-23
-
NiPdAu
e4
MIC2774N-28YM5-TR
0.017400
0.049000
5
SOT-23
-
NiPdAu
e4
MIC2774H-25YM5-TR
0.017400
0.049000
5
SOT-23
-
NiPdAu
e4
MIC2774H-26YM5-TR
0.017400
0.049000
5
SOT-23
-
NiPdAu
e4
MIC2774H-28YM5-TR
0.017400
0.049000
5
SOT-23
-
NiPdAu
e4
To see a complete listing of RoHS data for this device, please Click here
Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

Buy from the Microchip Store

Grid
View
Table
View
Filter:
Apply
Clear
Only show products with samples
Product
Leads
Package Type
Temp Range
Packing Media
5K Pricing
Buy