MAX6806 Datasheet, PDF (1/9 Pages) Maxim Integrated Products – Voltage Detectors

MAX6806/MAX6807/
MAX6808
Voltage Detectors
General Description
The MAX6806/MAX6807/MAX6808 precision voltage
detectors are ideal for accurate monitoring of power
supplies in digital systems. They provide circuit reliability
and reduce total cost by eliminating external components
and adjustments.
The MAX6806/MAX6807/MAX6808 assert a reset signal
whenever the supply voltage (V_CC) falls below the factory-
preset, ±2% accurate threshold. Internal hysteresis
ensures stable switching. The MAX6806/MAX6807/
MAX6808 are available in 4.6V and 2.6V thresholds (2.3V
is also available for the MAX6806 only). The MAX6806
features an active-low, push-pull RESET output; the
MAX6807 features an active-high, push-pull RESET
output; and the MAX6808 features an active-low, open-
drain RESET output. RESET is valid for V_CC down to 1V
(MAX6806/MAX6808), and RESET (MAX6807) is guar-
anteed for V_CC down to 1.2V.
The MAX6806/MAX6807/MAX6808 are available in
3-pin SC70, 3-pin SOT23, 8-pin µMAX, 8-pin SO, and
4-pin SOT143 packages. The SOT143 package includes
a manual-reset input.
Applications
●● Computers
●● Controllers
●● Intelligent Instruments
●● Critical µP and µC
Power Monitoring
●● Portable/Battery-
●● Powered Equipment
●● Bar-Code Scanners
Selector Guide and Pin Configurations appear at end of
data sheet.
Typical Operating Circuit
VCC
VCC
VCC
MAX6806
MAX6807
MAX6808
(RESET)/RESET
µP
RESET
INPUT
GND
GND
( ) ARE FOR MAX6807
Features
●● Preset Reset Thresholds: 4.6V and 2.6V
(2.3V also available for MAX6806 only)
●● ±2% Accurate Reset Thresholds
●● Reset Output Available in Active-Low (MAX6806),
Active-High (MAX6807), and Open-Drain (MAX6808)
Versions
●● Immune to Power-Supply Transients
●● RESET Valid to V_CC = 1.0V (MAX6806/MAX6808)
●● 35µA Supply Current
●● No External Components
●● Manual Reset Available with 4-Pin SOT143 Package
●● Miniature 3-Pin SC70, 3-Pin SOT23, and 4-Pin
SOT143 Packages
●● 8-Pin µMAX and 8-Pin SO Packages are Pin
Compatible with the MC33064/MC33164/
MC34064/MC34164
Ordering Information
PART
TEMP. RANGE PIN-PACKAGE
MAX6806XR_ _ -T
-40°C to +85°C 3 SC70
MAX6806UR_ _ -T
-40°C to +85°C 3 SOT23
MAX6806US_ _ -T
-40°C to +85°C 4 SOT143
MAX6806UA_ _
-40°C to +85°C 8 µMAX
MAX6806SA_ _
-40°C to +85°C 8 SO
MAX6807XR_ _ -T
-40°C to +85°C 3 SC70
MAX6807UR_ _ -T
-40°C to +85°C 3 SOT23
MAX6807US_ _ -T
-40°C to +85°C 4 SOT143
MAX6807UA_ _
-40°C to +85°C 8 µMAX
MAX6807SA_ _
-40°C to +85°C 8 SO
MAX6808XR_ _ -T
-40°C to +85°C 3 SC70
MAX6808UR_ _ -T
-40°C to +85°C 3 SOT23
MAX6808US_ _ -T
-40°C to +85°C 4 SOT143
MAX6808UA_ _
-40°C to +85°C 8 µMAX
MAX6808SA_ _
-40°C to +85°C 8 SO
* SOT23, SOT143, and SC70s are available in tape-and-reel
only, 2500 piece minimum order quantity.
Note: Insert the desired number from the Selector Guide into
the blank to complete the part number. Also see Selector Guide
for top mark for SOT23
19-1421; Rev 3; 7/14