MCP6549 Datasheet, PDF (1/28 Pages) Microchip Technology – Open-Drain Output Sub-Microamp Comparators

M
MCP6546/7/8/9
Open-Drain Output Sub-Microamp Comparators
Features
• Low Quiescent Current: 600 nA/comparator (typ.)
• Rail-to-Rail Input: V_SS - 0.3V to V_DD + 0.3V
• Open-Drain Output: V_OUT ≤10V
• Propagation Delay 4 µs (typ.)
• Wide Supply Voltage Range: 1.6V to 5.5V
• Single available in SOT-23-5, SC-70-5 packages
• Available in Single, Dual and Quad
• Chip Select (CS) with MCP6548
• Low Switching Current
• Internal Hysteresis: 3.3 mV (typ.)
• Industrial Temperature: -40°C to +85°C
Typical Applications
• Laptop Computers
• Mobile Phones
• Metering Systems
• Hand-held Electronics
• RC Timers
• Alarm and Monitoring Circuits
• Windowed Comparators
• Multi-vibrators
Related Devices
• CMOS/TTL-Compatible Output: MCP6541/2/3/4
Description
The Microchip Technology Inc. MCP6546/7/8/9 family
of comparators is offered in single (MCP6546), single
with chip select (MCP6548), dual (MCP6547) and quad
(MCP6549) configurations. The outputs are open-drain
and are capable of driving heavy DC or capacitive
loads.
These comparators are optimized for low power,
single-supply application with greater than rail-to-rail
input operation. The output limits supply current surges
and dynamic power consumption while switching. The
open-drain output of the MCP6546/7/8/9 family can be
used as a level-shifter for up to 10V using a pull-up
resistor. It can also be used as a wired-OR logic. The
internal Input hysteresis eliminates output switching
due to internal noise voltage, reducing current draw.
These comparators operate with a single-supply
voltage as low as 1.6V and draw less than 1 µA/
comparator of quiescent current.
The related MCP6541/2/3/4 family of comparators from
Microchip has a push-pull output that supports rail-to-
rail output swing and interfaces with CMOS/TTL logic.
Package Types
MCP6546
PDIP, SOIC, MSOP
NC 1
V_IN– 2 -
V_IN+ 3 ⁺
V_SS 4
8 NC
7 _VDD
6 OUT
5 NC
MCP6546-R
SOT-23-5
OUT 1
V_{DD 2}
V_IN+ 3
5 ^VSS
4 V_IN–
MCP6547
PDIP, SOIC, MSOP
MCP6549
PDIP, SOIC, TSSOP
OUTA 1
V_INA– 2 - +
8 ^VDD ^{OUTA 1}
14 OUTD
7 OUTB ^VINA^{– 2 - + + - 13 V}IND^–
V_INA+ 3
V_{SS 4}
+ - 6 V_INB– V_INA+ 3
5 V_INB+ V_DD 4
12 V_IND+
11 V_SS
MCP6546
SOT-23-5, SC-70-5
OUT 1
V_{SS 2}
V_IN+ 3
5 ^VDD
4 V_IN–
MCP6548
PDIP, SOIC, MSOP
NC 1
V_IN– 2 -
V_IN+ 3 ⁺
V_SS 4
8 CS
7 V_DD
6 OUT
5 NC
V_INB+ 5
V_INB– 6
OUTB 7
10 V_INC+
- + + - _{9 VINC–}
8 OUTC
 2003 Microchip Technology Inc.
DS21714C-page 1