Order this document by MC34160/D



  
    
  
MICROPROCESSOR
VOLTAGE REGULATOR/
The MC34160 Series is a voltage regulator and supervisory circuit containing SUPERVISORY CIRCUIT
many of the necessary monitoring functions required in microprocessor based
SEMICONDUCTOR
systems. It is specifically designed for appliance and industrial applications,
offering the designer a cost effective solution with minimal external components. TECHNICAL DATA
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. 16
These devices are contained in a 16 pin dual–in–line heat tab plastic 1
package for improved thermal conduction. P SUFFIX
• 5.0 V Regulator Output Current in Excess of 100 mA PLASTIC PACKAGE
• Internal Short Circuit Current Limiting CASE 648C
(DIP–16)
• Pinned Out 2.6 V Reference
• Low Voltage Reset Comparator
• Power Warning Comparator with Programmable Hysteresis 16

• Uncommitted Comparator 1

• Low Standby Current

DW SUFFIX
PLASTIC PACKAGE
• Internal Thermal Shutdown Protection CASE 751G
• Heat Tab Power Package
(SOP–16L)

Representative Block Diagram

PIN CONNECTIONS
Regulator
VCC + Output
14 11 Comp. Inv. In 1 16 Vref
0.913 R
Thermal Reset Comp. Noninv. In 2 15 Chip Disable
+
Shutdown 0.01 R – 7
– N.C. 3 14 VCC
+ R Reference
Chip Disable Output 4 13
15 2.6 V 16 Gnd Gnd
Reference + 5 12
Power
Power
– Warning Comp. Out 6 11 Reg. Out
Sense 8
9 +
Hysteresis Reset 7 10 Hyst. Adj.
Adjust IH
IH On/Off Power Warning 8 9 Power Sense
10
Noninverting
Input (Top View)
2 + Comparator
Inverting ORDERING INFORMATION
+ Output
Input
1 – 6
Operating
Device Temperature Range Package

MC34160DW SOP–16L
Gnd 4, 5, 12, 13 TA = 0° to +70°C
MC34160P DIP–16
This device contains 72 active transistors.
MC33160DW SOP–16L
TA = – 40° to +85°C
MC33160P DIP–16

 Motorola, Inc. 1996 Rev 1

MOTOROLA ANALOG IC DEVICE DATA 1
 MC34160 MC33160
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) VO 40 V
Comparator Output Sink Current (Pins 6, 7, 8) ISink 10 mA
Power Dissipation and Thermal Characteristics °C/W
P Suffix, Dual–In–Line Case 648C
Thermal Resistance, Junction–to–Air RθJA 80
Thermal Resistance, Junction–to–Case (Pins 4, 5, 12, 13) RθJC 15
DW Suffix, Surface Mount Case 751G
Thermal Resistance, Junction–to–Air RθJA 94
Thermal Resistance, Junction–to–Case (Pins 4, 5, 12, 13) RθJC 18
Operating Junction Temperature TJ +150 °C
Operating Ambient Temperature TA °C
MC34160 0 to +70
MC33160 –40 to +85
Storage Temperature Range Tstg –65 to +150 °C

ELECTRICAL CHARACTERISTICS (VCC = 30 V, IO = 10 mA, Iref = 100 µA) 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, VO 4.75 5.0 5.25 V
IO = 1.0 mA to 100 mA, TA = Tlow to Thigh)

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 RR 50 6.5 – dB
(VCC = 25 V to 35 V, IO = 40 mA, f = 120 Hz, TA = 25°C)

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

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 V
High State Output (Pin 11 Increasing) VIH – (VO–0.11) (VO–0.05)
Low State Output (Pin 11 Decreasing) VIL 4.55 (VO–0.18) –
Hysteresis VH 0.02 0.07 –
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 µA
NOTES: 1. The maximum voltage range is –0.3 V to VCC or +35 V, whichever is less.
2. Tlow = 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.

2 MOTOROLA ANALOG IC DEVICE DATA

 MC34160 MC33160
ELECTRICAL CHARACTERISTICS (continued) (VCC = 30 V, IO = 10 mA, Iref = 100 µA) 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
POWER WARNING COMPARATOR
Input Offset Voltage VIO – 1.2 10 mV
Input Bias Current (VPin 9 = 3.0 V) IIB – – 0.5 µA
Input Hysteresis Current (VPin 9 = Vref – 100 mV) IH µA
RPin 10 = 24 k 40 50 60
RPin 10 = ∞ 4.5 7.5 11
Output Sink Saturation (ISink = 2.0 mA) VOL – 0.13 0.4 V
Output Off–State Leakage (VOH = 40 V) IOH – – 4.0 µA
UNCOMMITTED COMPARATOR
Input Offset Voltage (Output Transition Low to High) VIO – – 20 mV
Input Hysteresis Voltage (Output Transition High to Low) IH 140 200 260 mV
Input Bias Current (VPin 1, 2 = 2.6 V) IIB – – –1.0 µA
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 µA
TOTAL DEVICE
Chip Disable Threshold Voltage (Pin 15) V
High State (Chip Disabled) VIH 2.5 – –
Low State (Chip Enabled) VIL – – 0.8
Chip Disable Input Current (Pin 15) µA
High State (Vin = 2.5 V) IIH – – 100
Low State (Vin = 0.8 V) IIL – – 30
Chip Disable Input Resistance (Pin 15) Rin 50 100 – kΩ
Operating Voltage Range VCC V
VO (Pin 11) Regulated 7.0 to 40 – –
Vref (Pin 16) Regulated 5.0 to 40 – –
Power Supply Current ICC mA
Standby (Chip Disable High State) – 0.18 0.35
Operating (Chip Disable Low State) – 1.5 3.0
NOTES: 1. The maximum voltage range is –0.3 V to VCC or +35 V, whichever is less.
2. Tlow = 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.

Figure 1. Regulator Output Voltage Change Figure 2. Reference and Regulator Output
versus Source Current versus Supply Voltage
∆ V O , REGULATOR OUTPUT VOLTAGE CHANGE (mV)

0 6.0
RL = 1 Regulator Output
OUTPUT VOLTAGE (V)

–4.0
4.0 RL = 50 Ω

–8.0 Reference Output RL = 1

2.0
VCC = 7.5 V
–12
TA = 25°C
TA = 25°C

–16 0
0 40 80 120 160 0 10 20 30 40
IO, REGULATOR OUTPUT SOURCE CURRENT (mA) VCC, SUPPLY VOLTAGE (V)

MOTOROLA ANALOG IC DEVICE DATA 3

 MC34160 MC33160

Figure 3. Reference Output Voltage Change Figure 4. Power Warning Hysteresis Current
∆ V ref , REFERENCE OUTPUT VOLTAGE CHANGE (mV)
versus Source Current versus Programming Resistor
0 60

I H , HYSTERESIS CURRENT (µ A)
VCC = 30 V
VPin 9 = 2.5 V
–8.0 TA = 25°C
40

–16

20
–24 VCC = 7.5 V
TA = 25°C

–32 0
0 2.0 4.0 6.0 8.0 20 40 60 80 100 120 140
Iref, REFERENCE OUTPUT SOURCE CURRENT (mA) RH, PROGRAMMING RESISTOR (kW)

Figure 5. Power Warning Comparator Delay Figure 6. Uncommitted Comparator Delay

versus Temperature versus Temperature
800 440
Output Rise VCC = 30 V
VCC = 30 V
t DLY, OUTPUT DELAY TIME (ns)

t DLY , OUTPUT DELAY TIME (ns)

Vin (Pin 9) = 2.5 V to 2.7 V VPin 1 = 2.5 V to 2.9 V
Output Rise
RL = 2.4 k to VO 360 VPin 2 = 2.6 V
RL = 2.4 k to VO
600

280
Output Fall
Output Fall
400
200

200 120
–55 –25 0 25 50 75 100 125 –55 –25 0 25 50 75 100 125
TA, AMBIENT TEMPERATURE (°C) TA, AMBIENT TEMPERATURE (°C)

Figure 8. P Suffix (DIP–16) Thermal Resistance and

Figure 7. Comparator Output Saturation Maximum Power DIssipation versus
versus Sink Current P.C.B. Copper Length
R θJA, THERMAL RESISTANCE JUNCTION TO AIR ( °C/W)

0.5 100 5.0

P D, MAXIMUM POWER DISSIPATION (W)

ÉÉÉÉÉÉ
VCC = 6.0 V Printed circuit board heatsink example
V OL , OUTPUT SATURATION (V)

VPin 1 = Vref

ÉÉÉÉÉÉ
0.4 VPin 2, 9 = 10 kΩ to Gnd 80 4.0
2.0 oz.

ÉÉÉÉÉÉ
Vsat = Pins 6, 7, 8 L
Copper
RθJA
0.3 60 L 3.0
TA = 25°C 3.0 mm
Graphs represent symmetrical layout

0.2 TA = 85°C 40 2.0

TA = –40°C

0.1 20 PD(max) for TA = 70°C 1.0

0 0 0
0 2.0 4.0 6.0 8.0 0 10 20 30 40 50
ISink, SINK CURRENT (mA) L, LENGTH OF COPPER (mm)

4 MOTOROLA ANALOG IC DEVICE DATA

 MC34160 MC33160

Figure 9. DW Suffix (SOP–16L) Thermal Resistance and

Maximum Power Dissipation versus P.C.B. Copper Length
100 2.8

PD, MAXIMUM POWER DISSIPATION (W)

PD(max) for TA = 50°C
90 2.4

R θ JA, THERMAL RESISTANCE

JUNCTION-TO-AIR (°C/W)
ÎÎÎ ÎÎÎ
80 2.0
Graph represents symmetrical layout
70
ÎÎÎ
ÎÎÎ ÎÎÎ
2.0 oz.
1.6

ÎÎÎ ÎÎÎ
L
60 Copper 1.2
L 3.0 mm
50 0.8
RθJA
40 0.4

30 0
0 10 20 30 40 50
L, LENGTH OF COPPER (mm)

PIN FUNCTION DESCRIPTION

Pin Function Description
1 Comparator Inverting Input This is the Uncommitted Comparator Inverting input. It is typically connected to a resistor
divider to monitor a voltage.
2 Comparator 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.
6 Comparator Output This is the Uncommitted Comparator output. It is an open collector sink–only output
requiring a pull–up resistor.
7 Reset This is the Reset Comparator output. It is an open collector sink–only output requiring a
pull–up resistor.
8 Power Warning This is the Power Warning Comparator output. It is an open collector sink–only output
requiring a pull–up resistor.
9 Power 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 level. When activated, typically at 170°C, the regulator output
supervisory circuit containing many of the necessary turns off.
monitoring functions required in microprocessor based In specific situations a combination of input and output
systems. It is specifically designed for appliance and bypass capacitors may be required for regulator stability. If
industrial applications, offering the designer a cost effective the regulator is located an appreciable distance (≥ 4″) from
solution with minimal external components. These devices the supply filter, an input bypass capacitor (Cin) of 0.33 µF or
are specified for operation over an input voltage of 7.0 V to greater is suggested. Output capacitance values of less than
40 V, and with a junction temperature of –40° to +150°C. A 5.0 nF may cause regulator instability at light load (≤ 1.0 mA)
typical microprocessor application is shown in Figure 10. and cold temperature. An output bypass capacitor of 0.1 µF
or greater is recommended to ensure stability under all load
Regulator
conditions. The capacitors selected must provide good high
The 5.0 V regulator is designed to source in excess of
frequency characteristics.
100 mA output current and is short circuit protected. The
Good construction techniques should be used to minimize
output has a guaranteed tolerance of ±5.0% over line, load,
ground loops and lead resistance drops since the regulator
and temperature. Internal thermal shutdown circuitry is
does not have external sense inputs.
included to limit the maximum junction temperature to a safe

MOTOROLA ANALOG IC DEVICE DATA 5

 MC34160 MC33160
Reference The nominal hysteresis current I H equals 1.2 V/RH
The 2.6 V bandgap reference is short circuit protected and (Figure 4).
has a guaranteed output tolerance of ±5.0% over line, load, The Uncommitted Comparator can be used to
and temperature. It is intended to be used in conjunction with synchronize the microprocessor with the ac line signal for
the Power Warning and Uncommitted comparator. The timing functions, or for synchronous load switching. It can
reference can source in excess of 2.0 mA and sink a also be connected as a line loss detector as shown in
maximum of 10 µA. For additional current sinking capability, Figure 11. The comparator contains 200 mV of hysteresis
an external load resistor to ground must be used. preventing erractic output behavior when crossing the input
Reference biasing is internally derived from either VCC or threshold.
VO, allowing proper operation if either drops below nominal. The Power Warning and Uncommitted Comparators each
have a transistor base–emitter connected across their inputs.
Chip Disable The base input normally connects to a voltage reference
This input is used to switch the IC into a standby mode. while the emitter input connects to the voltage to be
When activated, internal biasing for the entire die is removed monitored. The transistor limits the negative excursion on the
causing all outputs to turn off. This reduces the power supply emitter input to – 0.7 V below the base input by supply current
current (ICC) to less than 0.3 mA. from VCC. This clamp current will prevent forward biasing the
Comparators IC substrate. Zener diodes are connected to the comparator
Three separate comparators are incorporated for voltage inputs to enhance the ICs electrostatic discharge capability.
monitoring. Their outputs can provide diagnostic information Resistors R1 and Rin must limit the input current to a
to the microprocessor, preventing system malfunctions. maximum of ±2.0 mA.
The Reset Comparator Inverting Input is internally Each comparator output consists of an open collector NPN
connected to the 2.6 V reference while the Noninverting Input transistor capable of sinking 2.0 mA with a saturation voltage
monitors VO. The Reset Output is active low when VO falls less than 0.4 V, and standing off 40 V with minimal leakage.
approximately 180 mV below its regulated voltage. To Internal bias for the Reset and Power Warning Comparators
prevent erratic operation when crossing the comparator is derived from either VCC or the regulator output to ensure
threshold, 70 mV of hysteresis is provided. functionality when either is below nominal.
The Power Warning Comparator is typically used to detect Heat Tab Package
an impending loss of system power. The Inverting Input is The MC34160 is contained in a 16 lead plastic
internally connected to the reference, fixing the threshold at dual–in–line package in which the die is mounted on a
2.6 V. The input power source Vin is monitored by the special Heat Tab copper alloy lead frame. This tab consists of
Noninverting Input through the R1/R2 divider (Figure 10). This the four center ground pins that are specifically designed to
input features an adjustable 10 µA to 50 µA current sink IH improve thermal conduction from the die to the surrounding
that is programmed by the value selected for resistor RH. A air. The pictorial in Figure 8 shows a simple but effective
default current of 6.5 µA is provided if RH is omitted. When the method of utilizing the printed circuit board medium as a heat
comparator input falls below 2.6 V, the current sink is dissipator by soldering these tabs to an adequate area of
activated. This produces hysteresis if Vin is monitored copper foil. This permits the use of standard board layout and
through a series resistor (R1). The comparator thresholds are mounting practices while having the ability to more than halve
defined as follows: the junction to air thermal resistance. The example and graph
R1 – IIB R1 are for a symmetrical layout on a single sided board with one
Vth(lower) = Vref 1 +
R2 ounce per square foot copper.
R1 + IH R1
Vth(upper) = Vref 1 +
R2

Figure 10. Typical Microprocessor Application

VCC +
Vin VO
Cin 14 Thermal 0.913 R 11 CO
Shutdown +
.01 R – MPU Reset
7
R1 – Reset
+ R
Chip 2.6 V
Reference Vref
Disable 15 + Power 16
Warning
–
+ Power Warning
8
R2 9
IH
IH On/Off
RH 10

+ Uncommitted
2.6 V 2
Comparator
+ Line Sync.
– 6
AC Rin 1
Line

4, 5, 12, 13 + Sink Only

– = Positive True Logic

6 MOTOROLA ANALOG IC DEVICE DATA

 MC34160 MC33160

Figure 11. Line Loss Detector Application

VCC +
Vin VO
Cin 14 0.913 R 11 CO
Thermal
Shutdown +
.01 R – MPU Reset
7
– Reset
+ R
Chip 2.6 V
Vref
Disable 15 Reference + Power 10
+ Warning
R1 Line Loss Output
– 8
9
Point A 2.6 V
IH
IH On/Off
Pin 6 2.6 V
10
RDLY
Pin 8
2 + Uncommitted
Comparator
Rin +
– 6
AC 1
Line A

4, 5, 12, 13

CDLY

tDLY ≈ RDLY CDLY ln IH RDLY – VO +

–
= Sink Only
Vref + IH R1 – VO + IH RDLY Positive True Logic

Figure 12. Time Delayed Microprocessor Reset

VCC +
Vin VO
Cin 14 0.913 R 11 CO
Thermal
Shutdown +
.01 R – 7
R1 – Reset
+ R
Chip 2.6 V
Vref
Disable 15 Reference + Power 16
Warning RDLY
+
– 8
9
R2
IH
IH On/Off
RH 10

2 + Uncommitted
Comparator
+
– MPU Reset
6
1

3.6 k 4, 5, 12, 13

6.2 k tDLY  RDLY CDLY

CDLY
+ Sink Only
= Positive True Logic
–

MOTOROLA ANALOG IC DEVICE DATA 7

 MC34160 MC33160

OUTLINE DIMENSIONS
P SUFFIX
PLASTIC PACKAGE
CASE 648C–03
–A– NOTES:
(DIP–16)
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
16 9 2. CONTROLLING DIMENSION: INCH.
3. DIMENSION L TO CENTER OF LEADS WHEN
–B– FORMED PARALLEL.
4. DIMENSION B DOES NOT INCLUDE MOLD
1 8 FLASH.
L 5. INTERNAL LEAD CONNECTION, BETWEEN 4
AND 5, 12 AND 13.

INCHES MILLIMETERS
NOTE 5
DIM MIN MAX MIN MAX
A 0.740 0.840 18.80 21.34
B 0.240 0.260 6.10 6.60
C C 0.145 0.185 3.69 4.69
D 0.015 0.021 0.38 0.53
–T– E 0.050 BSC 1.27 BSC
SEATING N M F 0.040 0.070 1.02 1.78
PLANE G 0.100 BSC 2.54 BSC
K J 0.008 0.015 0.20 0.38
E
F J 16 PL K 0.115 0.135 2.92 3.43
G L 0.300 BSC 7.62 BSC
D 16 PL 0.13 (0.005) M T B S
M 0° 10° 0° 10°
N 0.015 0.040 0.39 1.01
0.13 (0.005) M T A S

DW SUFFIX
PLASTIC PACKAGE
–A– CASE 751G–02
(SOP–16L)
NOTES:
16 9 1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: MILLIMETER.
–B– P 8 PL 3. DIMENSIONS A AND B DO NOT INCLUDE MOLD
0.25 (0.010) M B M PROTRUSION.
1 8 4. MAXIMUM MOLD PROTRUSION 0.15 (0.006) PER
SIDE.
5. DIMENSION D DOES NOT INCLUDE DAMBAR
PROTRUSION. ALLOWABLE DAMBAR
G 14 PL J PROTRUSION SHALL BE 0.13 (0.005) TOTAL IN
EXCESS OF D DIMENSION AT MAXIMUM
MATERIAL CONDITION.
MILLIMETERS INCHES
F DIM MIN MAX MIN MAX
A 10.15 10.45 0.400 0.411
B 7.40 7.60 0.292 0.299
R X 45° C 2.35 2.65 0.093 0.104
D 0.35 0.49 0.014 0.019
C F 0.50 0.90 0.020 0.035
G 1.27 BSC 0.050 BSC
–T– J 0.25 0.32 0.010 0.012
K 0.10 0.25 0.004 0.009
K SEATING M
D 16 PL PLANE M 0° 7° 0° 7°
P 10.05 10.55 0.395 0.415
0.25 (0.010) M T A S B S R 0.25 0.75 0.010 0.029

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the suitability of its products for any particular purpose, nor does Motorola 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 consequential or incidental damages. “Typical” parameters which may be provided in Motorola
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. Motorola does not convey any license under its patent rights nor the rights of
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Opportunity/Affirmative Action Employer.

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*MC34160/D*
8 ◊ MOTOROLA ANALOG IC DEVICE DATA
MC34160/D
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