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What is MC33160?

This electronic component, produced by the manufacturer "ON Semiconductor", performs the same function as "(MC33160 / MC34160) Voltage Regulator and Supervisory Circuit".


MC33160 Datasheet PDF - ON Semiconductor

Part Number MC33160
Description (MC33160 / MC34160) Voltage Regulator and Supervisory Circuit
Manufacturers ON Semiconductor 
Logo ON Semiconductor Logo 


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MC34160, MC33160
100 mA, 5.0 V Voltage
Regulator and Supervisory
Circuit for Microprocessors
The MC34160 Series is a voltage regulator and supervisory circuit
containing many of the necessary monitoring functions required in
microprocessor based systems. It is specifically designed for
appliance and industrial applications, offering the designer a cost
effective solution with minimal external components. These
integrated circuits feature a 5.0 V/100 mA regulator with short
circuit current limiting, pinned out 2.6 V bandgap reference, low
voltage reset comparator, power warning comparator with
programmable hysteresis, and an uncommitted comparator ideally
suited for microprocessor line synchronization.
Additional features include a chip disable input for low standby
current, and internal thermal shutdown for over temperature protection.
These devices are contained in a 16 pin dual−in−line heat tab
plastic package for improved thermal conduction.
Features
5.0 V Regulator Output Current in Excess of 100 mA
Internal Short Circuit Current Limiting
Pinned Out 2.6 V Reference
Low Voltage Reset Comparator
Power Warning Comparator with Programmable Hysteresis
Uncommitted Comparator
Low Standby Current
Internal Thermal Shutdown Protection
Heat Tab Power Package
Pb−Free Packages are Available*
VCC
14
Chip Disable
15
Power
Sense
9
Hysteresis
Adjust
10
Noninverting
Input
2
Inverting
Input
1
+
2.6 V
Reference
Thermal
Shutdown
+
+
0.913 R
+
0.01 R
R
+
IH IH On/Off
+
+
Regulator
11Output
7 Reset
Reference
Output
16
Power
Warning
8
Comparator
Output
6
GND 4, 5, 12, 13
This device contains 72 active transistors.
Figure 1. Representative Block Diagram
© Semiconductor Components Industries, LLC, 2006
August, 2006 − Rev. 5
1
http://onsemi.com
SOIC−16WB
DW SUFFIX
CASE 751G
1
PDIP−16
P SUFFIX
CASE 648C
1
PIN CONNECTIONS
Comp. Inv. In 1
Comp. Noninv. In 2
N.C. 3
4
GND
5
Comp. Out 6
Reset 7
Power Warning 8
16 Vref
15 Chip Disable
14 VCC
13
GND
12
11 Reg. Out
10 Hyst. Adj.
9 Power Sense
(Top View)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 8 of this data sheet.
DEVICE MARKING INFORMATION
See general marking information in the device marking
section on page 8 of this data sheet.
*For additional information on our Pb−Free strategy
and soldering details, please download the
ON Semiconductor Soldering and Mounting
Techniques Reference Manual, SOLDERRM/D.
Publication Order Number:
MC34160/D

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MC33160 equivalent
MC34160, MC33160
PIN FUNCTION DESCRIPTION
Pin Function
1 Comparator Inverting
Input
2 Comparator Noninverting
Input
3 N.C.
4, 5, 12, 13 GND
6 Comparator Output
7 Reset
8 Power Warning
9 Power Sense
10 Hysteresis Adjust
11 Regulator Output
14 VCC
15 Chip Disable
16 Vref
Description
This is the Uncommitted Comparator Inverting input. It is typically connected to a resistor
divider to monitor a voltage.
This is the Uncommitted Comparator Noninverting input. It is typically connected to a
reference voltage.
No connection. This pin is not internally connected.
These pins are the control circuit grounds and are connected to the source and load ground
returns. They are part of the IC lead frame and can be used for heatsinking.
This is the Uncommitted Comparator output. It is an open collector sink−only output requiring
a pullup resistor.
This is the Reset Comparator output. It is an open collector sink−only output requiring a
pullup resistor.
This is the Power Warning Comparator output. It is an open collector sink−only output
requiring a pullup resistor.
This is the Power Warning Comparator noninverting input. It is typically connected to a
resistor divider to monitor the input power source voltage.
The Power Warning Comparator hysteresis is programmed by a resistor connected from this
pin to ground.
This is the 5.0 V Regulator output.
This pin is the positive supply input of the control IC.
This input is used to switch the IC into a standby mode turning off all outputs.
This is the 2.6 V Reference output. It is intended to be used in conjunction with the Power
Warning and Uncommitted comparators.
OPERATING DESCRIPTION
The MC34160 series is a monolithic voltage regulator and
supervisory circuit containing many of the necessary
monitoring functions required in microprocessor based
systems. It is specifically designed for appliance and
industrial applications, offering the designer a cost effective
solution with minimal external components. These devices
are specified for operation over an input voltage of 7.0 V to
40 V, and with a junction temperature of −40° to +150°C. A
typical microprocessor application is shown in Figure 11.
Regulator
The 5.0 V regulator is designed to source in excess of
100 mA output current and is short circuit protected. The
output has a guaranteed tolerance of ±5.0% over line, load,
and temperature. Internal thermal shutdown circuitry is
included to limit the maximum junction temperature to a
safe level. When activated, typically at 170°C, the
regulator output turns off.
In specific situations a combination of input and output
bypass capacitors may be required for regulator stability. If
the regulator is located an appreciable distance (4) from
the supply filter, an input bypass capacitor (Cin) of 0.33 mF
or greater is suggested. Output capacitance values of less
than 5.0 nF may cause regulator instability at light load
(1.0 mA) and cold temperature. An output bypass
capacitor of 0.1 mF or greater is recommended to ensure
stability under all load conditions. The capacitors selected
must provide good high frequency characteristics.
Good construction techniques should be used to
minimize ground loops and lead resistance drops since the
regulator does not have external sense inputs.
Reference
The 2.6 V bandgap reference is short circuit protected
and has a guaranteed output tolerance of ±5.0% over line,
load, and temperature. It is intended to be used in
conjunction with the Power Warning and Uncommitted
comparator. The reference can source in excess of 2.0 mA
and sink a maximum of 10 mA. For additional current
sinking capability, an external load resistor to ground must
be used.
Reference biasing is internally derived from either VCC
or VO, allowing proper operation if either drops below
nominal.
Chip Disable
This input is used to switch the IC into a standby mode.
When activated, internal biasing for the entire die is
removed causing all outputs to turn off. This reduces the
power supply current (ICC) to less than 0.3 mA.
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Featured Datasheets

Part NumberDescriptionMFRS
MC33160The function is MICROPROCESSOR VOLTAGE REGULATOR/ SUPERVISORY CIRCUIT. Motorola SemiconductorsMotorola Semiconductors
MC33160The function is (MC33160 / MC34160) Voltage Regulator and Supervisory Circuit. ON SemiconductorON Semiconductor
MC33161The function is UNIVERSAL VOLTAGE MONITORS. Motorola SemiconductorsMotorola Semiconductors

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