MC34160DWG - ON SEMICONDUCTOR

September, 2011 − Rev. 6

1Publication Order Number:

MC34160/D

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*

Figure 1. Representative Block Diagram

VCC

Chip Disable

Power

Sense

Hysteresis

Adjust

Noninverting

Input

Inverting

Input

Regulator

Output

Reference

Output

Comparator

Output

Power

Warning

Reset

Thermal

Shutdown

2.6 V

Reference

0.913 R

0.01 R

IHIH On/Off

GND 4, 5, 12, 13

This device contains 72 active transistors.

PDIP−16

P SUFFIX

CASE 648C

See detailed ordering and shipping information in the package

dimensions section on page 8 of this data sheet.

ORDERING INFORMATION

http://onsemi.com

SOIC−16WB

DW SUFFIX

CASE 751G

PIN CONNECTIONS

(Top View)

16Comp. Inv. In

N.C.

GND

Comp. Out

Reset

Power Warning Power Sense

Hyst. Adj.

Reg. Out

GND

VCC

Chip Disable

Vref

Comp. Noninv. In

*For additional information on our Pb−Free strategy

and soldering details, please download the

ON Semiconductor Soldering and Mounting

Techniques Reference Manual, SOLDERRM/D.

See general marking information in the device marking

section on page 8 of this data sheet.

DEVICE MARKING INFORMATION

MC34160, MC33160

http://onsemi.com

MAXIMUM RATINGS

Rating Symbol Value Unit

Power Supply Voltage VCC 40 V

Chip Disable Input Voltage (Pin 15, Note 1) VCD −0.3 to VCC V

Comparator Input Current (Pins 1, 2, 9) Iin −2.0 to +2.0 mA

Comparator Output Voltage (Pins 6, 7, 8) VO40 V

Comparator Output Sink Current (Pins 6, 7, 8) ISink 10 mA

Power Dissipation and Thermal Characteristics

P Suffix, Dual−In−Line Case 648C

Thermal Resistance, Junction−to−Air

Thermal Resistance, Junction−to−Case (Pins 4, 5, 12, 13)

DW Suffix, Surface Mount Case 751G

Thermal Resistance, Junction−to−Air

Thermal Resistance, Junction−to−Case (Pins 4, 5, 12, 13)

RqJA

RqJC

RqJA

RqJC

°C/W

Operating Junction Temperature TJ+150 °C

Operating Ambient Temperature

MC34160

MC33160

TA0 to +70

−40 to +85

°C

Storage Temperature Range Tstg −65 to +150 °C

Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the

Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect

device reliability.

1. The maximum voltage range is −0.3 V to VCC or +35 V, whichever is less.

ELECTRICAL CHARACTERISTICS (VCC = 30 V, IO = 10 mA, Iref = 100 mA) For typical values TA = 25°C, for min/max values TA is

the operating ambient temperature range that applies [Notes 2 and 3], unless otherwise noted.)

Characteristics Symbol Min Typ Max Unit

REGULATOR SECTION

Total Output Variation (VCC = 7.0 V to 40 V, IO = 1.0 mA to 100 mA, TA = Tlow to Thigh) VO4.75 5.0 5.25 V

Line Regulation (VCC = 7.0 V to 40 V, TA = 25°C) Regline −5.0 40 mV

Load Regulation (IO = 1.0 V to 100 mA, TA = 25°C) Regload −20 50 mV

Ripple Rejection (VCC = 25 V to 35 V, IO = 40 mA, f = 120 Hz, TA = 25°C) RR 50 65 −dB

REFERENCE SECTION

Total Output Variation (VCC = 7.0 to 40 V, IO = 0.1 mA to 2.0 mA, TA = Tlow to Thigh) Vref 2.47 2.6 2.73 V

Line Regulation (VCC = 5.0 V to 40 V, TA = 25°C) Regline −2.0 20 mV

Load Regulation (IO = 0.1 mA to 2.0 mA, TA = 25°C) Regload −4.0 30 mV

RESET COMPARATOR

Threshold Voltage High State Output (Pin 11 Increasing)

Low State Output (Pin 11 Decreasing)

Hysteresis

VIH

VIL

−

4.55

0.02

(VO−0.11)

(VO−0.18)

0.07

(VO−0.05)

−

Output Sink Saturation (VCC = 4.5 V, ISink = 2.0 mA) VOL − − 0.4 V

Output Off−State Leakage (VOH = 40 V) IOH − − 4.0 mA

POWER WARNING COMPARATOR

Input Offset Voltage VIO −1.2 10 mV

Input Bias Current (VPin 9 = 3.0 V) IIB − − 0.5 mA

Input Hysteresis Current (VPin 9 = Vref − 100 mV) RPin 10 = 24 k

RPin 10 = ∞

IH40

4.5

7.5

Output Sink Saturation (ISink = 2.0 mA) VOL −0.13 0.4 V

Output Off−State Leakage (VOH = 40 V) IOH − − 4.0 mA

2. Tlo =0°C for MC34160 Thigh =70°C for MC34160

−40°C for MC33160 85°C for MC33160

3. Low duty cycle pulse testing techniques are used during test to maintain junction temperature as close to ambient as possible.

MC34160, MC33160

http://onsemi.com

ELECTRICAL CHARACTERISTICS (continued) (VCC = 30 V, IO = 10 mA, Iref = 100 mA) For typical values TA = 25°C, for min/max

values TA is the operating ambient temperature range that applies [Notes 4 and 5], unless otherwise noted.)

Characteristics Symbol Min Typ Max Unit

UNCOMMITTED COMPARATOR

Input Offset Voltage (Output Transition Low to High) VIO − − 20 mV

Input Hysteresis Voltage (Output Transition High to Low) IH140 200 260 mV

Input Bias Current (VPin 1, 2 = 2.6 V) IIB − − −1.0 mA

Input Common Mode Voltage Range VICR 0.6 to 5.0 − − V

Output Sink Saturation (ISink = 2.0 mA) VOL −0.13 0.4 V

Output Off−State Leakage (VOH = 40 V) IOH − − 4.0 mA

TOTAL DEVICE

Chip Disable Threshold Voltage (Pin 15) High State (Chip Disabled)

Low State (Chip Enabled)

VIH

VIL

2.5

−

0.8

Chip Disable Input Current (Pin 15) High State (Vin = 2.5 V)

Low State (Vin = 0.8 V)

IIH

IIL

−

100

Chip Disable Input Resistance (Pin 15) Rin 50 100 −kW

Operating Voltage Range VO (Pin 11) Regulated

Vref (Pin 16) Regulated

VCC 7.0 to 40

5.0 to 40

−

Power Supply Current Standby (Chip Disable High State)

Operating (Chip Disable Low State)

ICC −

−

0.18

1.5

0.35

3.0

4. Tlo =0°C for MC34160 Thigh =70°C for MC34160

−40°C for MC33160 85°C for MC33160

5. Low duty cycle pulse testing techniques are used during test to maintain junction temperature as close to ambient as possible.

Figure 2. Regulator Output Voltage Change

versus Source Current

Figure 3. Reference and Regulator Output

versus Supply Voltage

IO, REGULATOR OUTPUT SOURCE CURRENT (mA)

Δ, REGULATOR OUTPUT VOLTAGE CHANGE (m

-4.0

-8.0

-12

-16 0 40 80 120 160

VCC = 7.5 V

TA = 25°C

VCC, SUPPLY VOLTAGE (V)

0 10203040

6.0

4.0

2.0

OUTPUT VOLTAGE (V)

RL = 50 W

Regulator Output

Reference Output RL = 1

TA = 25°C

RL = 1

Figure 4. Reference Output Voltage Change

versus Source Current

Figure 5. Power Warning Hysteresis Current

versus Programming Resistor

Iref, REFERENCE OUTPUT SOURCE CURRENT (mA)

Δ, REFERENCE OUTPUT VOLTAGE CHANGE (mV)

ref

-8.0

-16

-24

-32 0 2.0 4.0 6.0 8.0

VCC = 7.5 V

TA = 25°C

RH, PROGRAMMING RESISTOR (kW)

, HYSTERESIS CURRENT ( A)

Hμ

020 40 60 80 100 120 140

VCC = 30 V

VPin 9 = 2.5 V

TA = 25°C

MC34160, MC33160

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Figure 6. Power Warning Comparator Delay

versus Temperature

Figure 7. Uncommitted Comparator Delay

versus Temperature

Figure 8. Comparator Output Saturation

versus Sink Current

Figure 9. P Suffix (DIP−16) Thermal Resistance and

Maximum Power DIssipation versus

P.C.B. Copper Length

TA, AMBIENT TEMPERATURE (°C)

, OUTPUT DELAY TIME (ns)

DLY

800

600

400

200

-55 -25 0 25 50 75 100 125

VCC = 30 V

Vin (Pin 9) = 2.5 V to 2.7 V

RL = 2.4 k to VO

Output Rise

Output Fall

, OUTPUT DELAY TIME (ns)

DLY

TA, AMBIENT TEMPERATURE (°C)

440

360

280

200

120

-55 -25 0 25 50 75 100 125

Output Rise

VCC = 30 V

VPin 1 = 2.5 V to 2.9 V

VPin 2 = 2.6 V

RL = 2.4 k to VO

ISink, SINK CURRENT (mA)

, OUTPUT SATURATION (V)

0.5

0.4

0.3

0.2

0.1

00 2.0 4.0 6.0 8.0

VCC = 6.0 V

VPin 1 = Vref

VPin 2, 9 = 10 kW to GND

Vsat = Pins 6, 7, 8

TA = 85°C

TA = 25°C

TA = -40°C

L, LENGTH OF COPPER (mm)

, THERMAL RESISTANCE JUNCTION TO AIR (C/W)

θJA °

, MAXIMUM POWER DISSIPATION (W)

100 20304050

100

1.0

2.0

3.0

4.0

5.0

Printed circuit board heatsink example

Graphs represent symmetrical layout

ÉÉÉ

ÉÉ

2.0 oz.

Copper

3.0 mm

PD(max) for TA = 70°C

RθJA

Figure 10. DW Suffix (SOP−16L) Thermal Resistance and

Maximum Power Dissipation versus P.C.B. Copper Length

0.4

0.8

1.2

1.6

2.0

2.4

02030504010

L, LENGTH OF COPPER (mm)

100 2.8

PD(max) for TA = 50°C

RθJA

R , THERMAL RESISTANCE

JAθ

JUNCTION‐TO‐AIR ( C/W)°

, MAXIMUM POWER DISSIPATION (W)

ÎÎÎ

ÎÎ

2.0 oz.

Copper

Graph represents symmetrical layout

3.0 mmL

MC34160, MC33160

http://onsemi.com

PIN FUNCTION DESCRIPTION

Pin Function Description

1Comparator Inverting

Input

This is the Uncommitted Comparator Inverting input. It is typically connected to a resistor

divider to monitor a voltage.

2Comparator Noninverting

Input

This is the Uncommitted Comparator Noninverting input. It is typically connected to a

reference voltage.

3 N.C. No connection. This pin is not internally connected.

4, 5, 12, 13 GND 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.

6Comparator Output This is the Uncommitted Comparator output. It is an open collector sink−only output requiring

a pullup resistor.

7 Reset This is the Reset Comparator output. It is an open collector sink−only output requiring a

pullup resistor.

8Power Warning This is the Power Warning Comparator output. It is an open collector sink−only output

requiring a pullup resistor.

9Power Sense This is the Power Warning Comparator noninverting input. It is typically connected to a

resistor divider to monitor the input power source voltage.

10 Hysteresis Adjust The Power Warning Comparator hysteresis is programmed by a resistor connected from this

pin to ground.

11 Regulator Output This is the 5.0 V Regulator output.

14 VCC This pin is the positive supply input of the control IC.

15 Chip Disable This input is used to switch the IC into a standby mode turning off all outputs.

16 Vref 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.

MC34160, MC33160

http://onsemi.com

Comparators

Three separate comparators are incorporated for voltage

monitoring. Their outputs can provide diagnostic information

to the microprocessor, preventing system malfunctions.

The Reset Comparator Inverting Input is internally

connected to the 2.6 V reference while the Noninverting

Input monitors VO. The Reset Output is active low when

VO falls approximately 180 mV below its regulated

voltage. To prevent erratic operation when crossing the

comparator threshold, 70 mV of hysteresis is provided.

The Power Warning Comparator is typically used to

detect an impending loss of system power. The Inverting

Input is internally connected to the reference, fixing the

threshold at 2.6 V. The input power source Vin is monitored

by the Noninverting Input through the R1/R2 divider

(Figure 11). This input features an adjustable 10 mA to 50

mA current sink IH that is programmed by the value selected

for resistor RH. A default current of 6.5 mA is provided if

RH is omitted. When the comparator input falls below 2.6

V, the current sink is activated. This produces hysteresis if

Vin is monitored through a series resistor (R1). The

comparator thresholds are defined as follows:

1 + − IIB R1

Vth(lower) = Vref

1 + + IH R1

Vth(upper) = Vref

The nominal hysteresis current IH equals 1.2 V/RH

(Figure 5).

The Uncommitted Comparator can be used to

synchronize the microprocessor with the ac line signal for

timing functions, or for synchronous load switching. It can

also be connected as a line loss detector as shown in

Figure 12. The comparator contains 200 mV of hysteresis

preventing erratic output behavior when crossing the input

threshold.

The Power Warning and Uncommitted Comparators

each have a transistor base−emitter connected across their

inputs. The base input normally connects to a voltage

reference while the emitter input connects to the voltage to

be monitored. The transistor limits the negative excursion

on the emitter input to − 0.7 V below the base input by

supply current from VCC. This clamp current will prevent

forward biasing the IC substrate. Zener diodes are

connected to the comparator inputs to enhance the ICs

electrostatic discharge capability. Resistors R1 and Rin

must limit the input current to a maximum of ±2.0 mA.

Each comparator output consists of an open collector

NPN transistor capable of sinking 2.0 mA with a saturation

voltage less than 0.4 V, and standing off 40 V with minimal

leakage. Internal bias for the Reset and Power Warning

Comparators is derived from either VCC or the regulator

output to ensure functionality when either is below

nominal.

Heat Tab Package

The MC34160 is contained in a 16 lead plastic

dual−in−line package in which the die is mounted on a

special Heat Tab copper alloy lead frame. This tab consists

of the four center ground pins that are specifically designed

to improve thermal conduction from the die to the

surrounding air. The pictorial in Figure 9 shows a simple

but effective method of utilizing the printed circuit board

medium as a heat dissipator by soldering these tabs to an

adequate area of copper foil. This permits the use of

standard board layout and mounting practices while having

the ability to more than halve the junction to air thermal

resistance. The example and graph are for a symmetrical

layout on a single sided board with one ounce per square

foot copper.

=Sink Only

Positive True Logic

Line

Line Sync.

Power Warning

Vref

MPU Reset

Uncommitted

Comparator

4, 5, 12, 13

2.6 V

Reference

Thermal

Shutdown

Power

Warning

Vin

2.6 V

Rin

Chip

Disable

Reset

.01 R

IH On/Off

Cin

VCC

0.913 R 11

Figure 11. Typical Microprocessor Application

MC34160, MC33160

http://onsemi.com

Figure 12. Line Loss Detector Application

=Sink Only

Positive True Logic

Line

Line Loss Output

Vref

MPU Reset

Uncommitted

Comparator

4, 5, 12, 13

2.6 V

Reference

Thermal

Shutdown

Power

Warning

Vin

Rin

Chip

Disable

Reset

.01 R

IH On/Off

Cin

VCC

0.913 R 11

RDLY

CDLY

Pin 6

Pin 8

2.6 V

tDLY ≈ RDLY CDLY ln IH RDLY - VO

Vref + IH R1 - VO + IH RDLY

Point A

Figure 13. Time Delayed Microprocessor Reset

=Sink Only

Positive True Logic

Vref

Uncommitted

Comparator

4, 5, 12, 13

2.6 V

Reference

Thermal

Shutdown

Power

Warning

Vin

Chip

Disable

Reset

.01 R

IH On/Off

Cin

VCC

0.913 R 11

CDLY

6.2 k

MPU Reset

RDLY

tDLY  RDLY CDLY

3.6 k

MC34160, MC33160

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ORDERING INFORMATION

Device Operating Temperature Range Package Shipping†

MC34160DW

TA = 0° to +70°C

SOIC−16WB 47 Units / Rail

MC34160DWG SOIC−16WB

(Pb−Free)

47 Units / Rail

MC34160DWR2 SOIC−16WB 1000 Units / Tape & Reel

MC34160DWR2G SOIC−16WB

(Pb−Free)

1000 Units / Tape & Reel

MC34160P PDIP−16 25 Units / Rail

MC34160PG PDIP−16

(Pb−Free)

25 Units / Rail

MC33160DW

TA = −40° to +85°C

SOIC−16WB 47 Units / Rail

MC33160DWG SOIC−16WB

(Pb−Free)

47 Units / Rail

MC33160DWR2 SOIC−16WB 1000 Units / Tape & Reel

MC33160DWR2G SOIC−16WB

(Pb−Free)

1000 Units / Tape & Reel

MC33160P PDIP−16 25 Units / Rail

MC33160PG PDIP−16

(Pb−Free)

25 Units / Rail

†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging

Specifications Brochure, BRD8011/D.

MARKING DIAGRAMS

MC3x160 = Device Code

DW = SOIC−16

P = PDIP−16

x = 4 or 3

A = Assembly Location

WL = Wafer Lot

YY = Year

WW = Work Week

G = Pb−Free Package

MC3x160DW

AWLYYWWG

MC3x160P

AWLYYWWG

PDIP−16SOIC−16WB

MC34160, MC33160

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PACKAGE DIMENSIONS

SOIC−16 WB

DW SUFFIX

PLASTIC PACKAGE

CASE 751G−03

ISSUE C

14X

B16X

SEATING

PLANE

0.25 B S

16 9

hX 45_

0.25

H8X

NOTES:

1. DIMENSIONS ARE IN MILLIMETERS.

2. INTERPRET DIMENSIONS AND TOLERANCES

PER ASME Y14.5M, 1994.

3. DIMENSIONS D AND E DO NOT INLCUDE

MOLD PROTRUSION.

4. MAXIMUM MOLD PROTRUSION 0.15 PER SIDE.

5. DIMENSION B DOES NOT INCLUDE DAMBAR

PROTRUSION. ALLOWABLE DAMBAR

PROTRUSION SHALL BE 0.13 TOTAL IN

EXCESS OF THE B DIMENSION AT MAXIMUM

MATERIAL CONDITION.

DIM MIN MAX

MILLIMETERS

A2.35 2.65

A1 0.10 0.25

B0.35 0.49

C0.23 0.32

D10.15 10.45

E7.40 7.60

e1.27 BSC

H10.05 10.55

h0.25 0.75

L0.50 0.90

q0 7

MC34160, MC33160

http://onsemi.com

PACKAGE DIMENSIONS

PDIP−16

P SUFFIX

PLASTIC PACKAGE

CASE 648C−04

ISSUE D

DIM MIN MAX MIN MAX

MILLIMETERSINCHES

A0.744 0.783 18.90 19.90

B0.240 0.260 6.10 6.60

C0.145 0.185 3.69 4.69

D0.015 0.021 0.38 0.53

E0.050 BSC 1.27 BSC

F0.040 0.70 1.02 1.78

G0.100 BSC 2.54 BSC

J0.008 0.015 0.20 0.38

K0.115 0.135 2.92 3.43

L0.300 BSC 7.62 BSC

M0 10 0 10

N0.015 0.040 0.39 1.01

____

NOTES:

1. DIMENSIONING AND TOLERANCING PER ASME

Y14.5M, 1994.

2. CONTROLLING DIMENSION: INCH.

3. DIMENSION L TO CENTER OF LEADS WHEN

FORMED PARALLEL.

4. DIMENSION B DOES NOT INCLUDE MOLD

FLASH.

16 9

16X

0.005 (0.13) T

SEATING

PLANE

0.005 (0.13) T

J16X

ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice

to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any

liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental

damages. “Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over

time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC does not convey any license under

its patent rights nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body,

or other applications intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death

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personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part.

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PUBLICATION ORDERING INFORMATION

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USA/Canada

Europe, Middle East and Africa Technical Support:

Phone: 421 33 790 2910

Japan Customer Focus Center

Phone: 81−3−5773−3850

MC34160/D

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