TC1041CEUA Microchip Technology, TC1041CEUA Datasheet - Page 4

• Manufacturer Part Number: TC1041CEUA
• Description: IC DUAL COMPARATOR W/VREF 8MSOP
• Manufacturer: Microchip Technology
• Type: with Voltage Referencer

Specifications of TC1041CEUA

• Output Type: Rail-to-Rail
• Package / Case: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
• Number Of Elements: 2
• Voltage - Supply: 1.8 V ~ 5.5 V
• Mounting Type: Surface Mount
• Number Of Channels: 2 Channels
• Product: Analog Comparators
• Response Time: 4 us
• Offset Voltage (max): 5 mV
• Input Bias Current (max): 100 pA
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 1.8 V
• Supply Current (max): 15 uA
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TC1041
3.0
The TC1041 is one of a series of very low power, linear
building block products targeted at low voltage
operation. The TC1041 contains two comparators and
a voltage reference and operates at a minimum supply
voltage of 1.8V with a typical current consumption of
10µA.
hysteresis.
3.1
The TC1041 contains two comparators with program-
mable
comparators are connected to the output of the voltage
reference, while the range of the non-inverting inputs
extend beyond both supply voltages by 200mV. The
comparator outputs will swing to within several
millivolts of the supplies depending on the load current
being driven.
The comparators exhibit a propagation delay and
supply current which are largely independent of supply
voltage. The low input bias current and offset voltage
make them suitable for high impedance precision
applications.
FIGURE 3-1:
DS21346B-page 4
hysteresis. The inverting inputs
Both
DETAILED DESCRIPTION
Comparator
comparators
I
Note: Size R1 and R2 such that I
REF
TC1041 PROGRAMMABLE HYSTERESIS
R1
R2
have
programmable
6
5
1
V
V
HYST
of the
REF
SS
REF
≤ 50µA
TC1041
3.2
A 2.0 percent tolerance, internally biased, 1.20V band-
gap voltage reference is included in the TC1041. It has
a push-pull output capable of sourcing and sinking at
least 50µA.
3.3
Hysteresis is added to the comparators by connecting
a resistor, R1, between the V
another resistor, R2, between the HYST pin and V
For no hysteresis, V
HYST. The hysteresis, V
voltage difference between the V
where:
and is symmetrical around the normal (without
hysterersis)
maximum voltage allowed between the V
pins is 80mV, giving a maximum hysteresis of 160mV.
V
HB
Voltage Reference
Programmable Hysteresis
= 2V
R1 =
R2 =
REF
threshold
R1/(R1 + R2) (See Figure 3-1)
(2) (I
(
REF
1.2V –
V
HB
REF
should be directly connected to
©
I
REF
of
2002 Microchip Technology Inc.
)
HB
V
, is equal to twice the
HB
2
REF
the
)
REF
and HYST pins and
comparator.
and HYST pins
REF
and H
The
YST
SS
.