MC33160DW [MOTOROLA]
MICROPROCESSOR VOLTAGE REGULATOR/ SUPERVISORY CIRCUIT; 微处理器稳压器/电压监控电路
| 型号： | MC33160DW |
| 厂家： | 
MOTOROLA |
| 描述： | MICROPROCESSOR VOLTAGE REGULATOR/ SUPERVISORY CIRCUIT |
| 文件： | 总8页 (文件大小：192K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Order this document by MC34160/D
MICROPROCESSOR
VOLTAGE REGULATOR/
SUPERVISORY CIRCUIT
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.
SEMICONDUCTOR
TECHNICAL DATA
16
These devices are contained in a 16 pin dual–in–line heat tab plastic
package for improved thermal conduction.
1
P SUFFIX
PLASTIC PACKAGE
CASE 648C
• 5.0 V Regulator Output Current in Excess of 100 mA
• Internal Short Circuit Current Limiting
• Pinned Out 2.6 V Reference
(DIP–16)
• Low Voltage Reset Comparator
• Power Warning Comparator with Programmable Hysteresis
• Uncommitted Comparator
16
1
DW SUFFIX
PLASTIC PACKAGE
CASE 751G
• Low Standby Current
• Internal Thermal Shutdown Protection
• Heat Tab Power Package
(SOP–16L)
Representative Block Diagram
PIN CONNECTIONS
Regulator
Output
11
V
14
+
CC
Comp. Inv. In
Comp. Noninv. In
N.C.
1
2
3
4
5
6
7
8
16
V
ref
0.913 R
0.01 R
Thermal
Shutdown
15 Chip Disable
Reset
7
+
–
14
13
12
V
CC
–
+
Reference
Output
16
R
Chip Disable
15
2.6 V
Reference
Gnd
Gnd
+
Power
Warning
8
Power
Sense
9
–
Comp. Out
Reset
11 Reg. Out
10 Hyst. Adj.
+
Hysteresis
Adjust
10
I
H
Power Warning
9
Power Sense
I
On/Off
H
Noninverting
(Top View)
Input
2
+
Comparator
Output
Inverting
Input
1
ORDERING INFORMATION
Operating
+
–
6
Temperature Range
Device
Package
MC34160DW
MC34160P
MC33160DW
MC33160P
SOP–16L
DIP–16
Gnd
4, 5, 12, 13
T
= 0° to +70°C
A
This device contains 72 active transistors.
SOP–16L
DIP–16
T
= – 40° to +85°C
A
Motorola, Inc. 1996
Rev 1
MC34160 MC33160
MAXIMUM RATINGS
Rating
Symbol
Value
40
Unit
V
Power Supply Voltage
V
V
CC
Chip Disable Input Voltage (Pin 15, Note 1)
Comparator Input Current (Pins 1, 2, 9)
Comparator Output Voltage (Pins 6, 7, 8)
Comparator Output Sink Current (Pins 6, 7, 8)
–0.3 to V
V
CD
CC
I
in
–2.0 to +2.0
mA
V
V
O
40
10
I
mA
°C/W
Sink
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
R
θJA
R
θJC
80
15
Thermal Resistance, Junction–to–Air
Thermal Resistance, Junction–to–Case (Pins 4, 5, 12, 13)
R
θJA
R
θJC
94
18
Operating Junction Temperature
T
+150
°C
°C
J
Operating Ambient Temperature
MC34160
T
A
0 to +70
MC33160
–40 to +85
Storage Temperature Range
T
stg
–65 to +150
°C
ELECTRICAL CHARACTERISTICS (V
CC
= 30 V, I = 10 mA, I = 100 µA) For typical values T = 25°C, for min/max values T is the
ref
O
A
A
operating ambient temperature range that applies [Notes 2 and 3], unless otherwise noted.)
Characteristics
Symbol
Min
Typ
Max
Unit
REGULATOR SECTION
Total Output Variation (V
= 7.0 V to 40 V,
V
O
4.75
5.0
5.25
V
CC
I
O
= 1.0 mA to 100 mA, T = T
to T
A
low
high)
Line Regulation (V
CC
= 7.0 V to 40 V, T = 25°C)
Reg
–
–
5.0
20
40
50
–
mV
mV
dB
A
line
Load Regulation (I = 1.0 V to 100 mA, T = 25°C)
Reg
load
O
A
Ripple Rejection
(V
RR
50
6.5
= 25 V to 35 V, I = 40 mA, f = 120 Hz, T = 25°C)
CC
O
A
REFERENCE SECTION
Total Output Variation (V
= 7.0 to 40 V,
V
ref
2.47
2.6
2.73
V
CC
I
O
= 0.1 mA to 2.0 mA, T = T
to T
A
low
high)
Line Regulation (V
CC
= 5.0 V to 40 V, T = 25°C)
Reg
–
–
2.0
4.0
20
30
mV
mV
A
line
Load Regulation (I = 0.1 mA to 2.0 mA, T = 25°C)
Reg
load
O
A
RESET COMPARATOR
Threshold Voltage
V
High State Output (Pin 11 Increasing)
Low State Output (Pin 11 Decreasing)
Hysteresis
V
V
V
–
4.55
0.02
(V –0.11) (V –0.05)
O O
IH
IL
H
(V –0.18)
–
–
O
0.07
–
Output Sink Saturation (V
CC
= 4.5 V, I
= 2.0 mA)
V
OL
–
–
0.4
4.0
V
Sink
Output Off–State Leakage (V
OH
= 40 V)
I
–
µA
OH
NOTES: 1. The maximum voltage range is –0.3 V to V
or +35 V, whichever is less.
CC
2. T
=
0°C for MC34160
T
= 70°C for MC34160
85°C for MC33160
low
high
–40°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) (V
CC
= 30 V, I = 10 mA, I = 100 µA) For typical values T = 25°C, for min/max
ref
O
A
values T is the operating ambient temperature range that applies [Notes 2 and 3], unless otherwise noted.)
A
Characteristics
POWER WARNING COMPARATOR
Symbol
Min
Typ
Max
Unit
Input Offset Voltage
Input Bias Current (V
V
–
–
1.2
–
10
mV
µA
µA
IO
= 3.0 V)
I
IB
0.5
Pin 9
Input Hysteresis Current (V
= V – 100 mV)
ref
I
H
Pin 9
R
Pin 10
R
Pin 10
= 24 k
= ∞
40
4.5
50
7.5
60
11
Output Sink Saturation (I
= 2.0 mA)
V
–
–
0.13
–
0.4
4.0
V
Sink
OL
Output Off–State Leakage (V
= 40 V)
I
µA
OH
UNCOMMITTED COMPARATOR
OH
Input Offset Voltage (Output Transition Low to High)
Input Hysteresis Voltage (Output Transition High to Low)
V
I
–
–
200
–
20
260
–1.0
–
mV
mV
µA
V
IO
140
H
Input Bias Current (V
= 2.6 V)
I
IB
–
Pin 1, 2
Input Common Mode Voltage Range
Output Sink Saturation (I = 2.0 mA)
V
ICR
0.6 to 5.0
–
V
OL
–
–
0.13
–
0.4
4.0
V
Sink
Output Off–State Leakage (V
= 40 V)
I
µA
OH
OH
TOTAL DEVICE
Chip Disable Threshold Voltage (Pin 15)
High State (Chip Disabled)
Low State (Chip Enabled)
V
V
V
2.5
–
–
–
–
0.8
IH
IL
Chip Disable Input Current (Pin 15)
µA
High State (V = 2.5 V)
Low State (V = 0.8 V)
in
I
I
–
–
–
–
100
30
in
IH
IL
Chip Disable Input Resistance (Pin 15)
R
50
100
–
kΩ
in
Operating Voltage Range
V
CC
V
V
V
(Pin 11) Regulated
(Pin 16) Regulated
7.0 to 40
5.0 to 40
–
–
–
–
O
ref
Power Supply Current
Standby (Chip Disable High State)
Operating (Chip Disable Low State)
I
mA
CC
–
–
0.18
1.5
0.35
3.0
NOTES: 1. The maximum voltage range is –0.3 V to V
or +35 V, whichever is less.
CC
2. T
=
0°C for MC34160
T
= 70°C for MC34160
85°C for MC33160
low
high
–40°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
versus Source Current
Figure 2. Reference and Regulator Output
versus Supply Voltage
0
–4.0
–8.0
–12
–16
6.0
4.0
2.0
0
R
=
L
Regulator Output
R
= 50 Ω
L
Reference Output
R
C
=
L
V
= 7.5 V
CC
= 25°C
T
A
T
= 25
30
°
A
0
10
20
40
0
40
80
120
160
V
, SUPPLY VOLTAGE (V)
CC
I
, REGULATOR OUTPUT SOURCE CURRENT (mA)
O
3
MOTOROLA ANALOG IC DEVICE DATA
MC34160 MC33160
Figure 3. Reference Output Voltage Change
Figure 4. Power Warning Hysteresis Current
versus Programming Resistor
versus Source Current
0
–8.0
–16
–24
–32
60
40
V
V
= 30 V
= 2.5 V
°C
CC
Pin 9
= 25
T
A
20
0
V
= 7.5 V
= 25°C
CC
T
A
0
2.0
4.0
6.0
8.0
20
40
60
80
100
120
140
I
, REFERENCE OUTPUT SOURCE CURRENT (mA)
R
, PROGRAMMING RESISTOR (kW)
ref
H
Figure 5. Power Warning Comparator Delay
versus Temperature
Figure 6. Uncommitted Comparator Delay
versus Temperature
800
600
400
440
360
280
200
120
Output Rise
V
V
V
= 30 V
V
= 30 V
(Pin 9) = 2.5 V to 2.7 V
= 2.4 k to V
CC
CC
= 2.5 V to 2.9 V
Pin 1
V
in
Output Rise
= 2.6 V
Pin 2
R
L
O
R
= 2.4 k to V
O
L
Output Fall
Output Fall
200
–55
–25
0
25
50
75
C)
100
125
–55
–25
0
25
50
75
C)
100
125
T , AMBIENT TEMPERATURE (
°
T , AMBIENT TEMPERATURE (
°
A
A
Figure 8. P Suffix (DIP–16) Thermal Resistance and
Maximum Power DIssipation versus
P.C.B. Copper Length
Figure 7. Comparator Output Saturation
versus Sink Current
0.5
100
5.0
Printed circuit board heatsink example
V
CC
V
V
V
Pin 1
Pin 2, 9
sat
0.4
80
4.0
Ω
to Gnd
2.0 oz.
Copper
L
R
θ
JA
L
0.3
0.2
0.1
0
60
40
3.0
2.0
3.0 mm
Graphs represent symmetrical layout
T
= 25°C
A
T
= –40°C
A
P
for T = 70
A
°
C
D(max)
20
0
1.0
0
0
10
20
30
40
50
0
2.0
4.0
, SINK CURRENT (mA)
6.0
8.0
L, LENGTH OF COPPER (mm)
I
Sink
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
90
80
70
60
50
2.8
P
for T = 50°C
A
D(max)
2.4
2.0
1.6
1.2
Graph represents symmetrical layout
2.0 oz.
L
Copper
L
3.0 mm
0.8
0.4
0
R
θ
JA
40
30
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.
Gnd
No connection. This pin is not internally connected.
4, 5, 12, 13
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
7
Comparator Output
Reset
This is the Uncommitted Comparator output. It is an open collector sink–only output
requiring a pull–up resistor.
This is the Reset Comparator output. It is an open collector sink–only output requiring a
pull–up resistor.
8
Power Warning
Power Sense
This is the Power Warning Comparator output. It is an open collector sink–only output
requiring a pull–up resistor.
9
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
14
15
16
Regulator Output
This is the 5.0 V Regulator output.
V
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.
CC
Chip Disable
V
ref
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 10.
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 (C ) of 0.33 µF or
in
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 µF
or greater is recommended to ensure stability under all load
conditions. The capacitors selected must provide good high
frequency characteristics.
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
Good construction techniques should be used to minimize
ground loops and lead resistance drops since the regulator
does not have external sense inputs.
5
MOTOROLA ANALOG IC DEVICE DATA
MC34160 MC33160
Reference
The nominal hysteresis current I equals 1.2 V/R
(Figure 4).
H H
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 µA. For additional current sinking capability,
an external load resistor to ground must be used.
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 11. The comparator contains 200 mV of hysteresis
preventing erractic 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
Reference biasing is internally derived from either V
V , allowing proper operation if either drops below nominal.
O
or
CC
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 (I ) to less than 0.3 mA.
CC
from V . This clamp current will prevent forward biasing the
CC
IC substrate. Zener diodes are connected to the comparator
inputs to enhance the ICs electrostatic discharge capability.
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
Resistors R and R must limit the input current to a
1
in
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
monitors V . The Reset Output is active low when V falls
O
O
approximately 180 mV below its regulated voltage. To
prevent erratic operation when crossing the comparator
threshold, 70 mV of hysteresis is provided.
is derived from either V
functionality when either is below nominal.
or the regulator output to ensure
CC
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
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 8 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.
2.6 V. The input power source V is monitored by the
in
Noninverting Input through the R /R divider (Figure 10). This
1
2
input features an adjustable 10 µA to 50 µA current sink I
H
that is programmed by the value selected for resistor R . A
H
default current of 6.5 µA is provided if R is omitted. When the
H
comparator input falls below 2.6 V, the current sink is
activated. This produces hysteresis if V is monitored
in
through a series resistor (R ). The comparator thresholds are
1
defined as follows:
R1 – I
R
IB
1
1
V
= V
ref
1 +
1 +
th(lower)
R
2
R1 + I
R
H
V
= V
ref
th(upper)
R
2
Figure 10. Typical Microprocessor Application
V
+
CC
V
V
in
O
11
7
14
0.913 R
.01 R
R
C
in
C
O
Thermal
Shutdown
+
–
MPU Reset
–
+
Reset
R
R
1
2.6 V
Reference
Chip
Disable
V
ref
15
Power
16
8
+
Warning
–
+
Power Warning
9
10
2
2
I
H
I
On/Off
H
R
H
Uncommitted
Comparator
+
2.6 V
Line Sync.
+
–
6
AC
Line
R
in
1
4, 5, 12, 13
+
–
Sink Only
=
Positive True Logic
6
MOTOROLA ANALOG IC DEVICE DATA
MC34160 MC33160
Figure 11. Line Loss Detector Application
V
+
CC
V
V
in
O
11
7
14
C
0.913 R
.01 R
R
C
O
in
Thermal
Shutdown
+
–
MPU Reset
–
+
Reset
2.6 V
Reference
Chip
Disable
V
ref
+
15
10
8
Power
Warning
+
–
R
1
Line Loss Output
9
10
2
Point A
2.6 V
2.6 V
I
H
I
On/Off
H
Pin 6
Pin 8
R
DLY
+
Uncommitted
Comparator
+
–
R
in
6
AC
Line
1
A
4, 5, 12, 13
C
DLY
Sink Only
Positive True Logic
+
–
I
R
– V
O
O
=
H
DLY
– V + I R
H DLY
t
≈
R
C
ln
DLY
DLY DLY
V
+ I
R
ref
H
1
Figure 12. Time Delayed Microprocessor Reset
V
+
CC
V
V
in
O
11
7
14
0.913 R
.01 R
R
C
C
O
in
Thermal
Shutdown
+
–
–
+
Reset
R
R
1
2.6 V
Reference
Chip
Disable
V
ref
+
15
16
8
Power
Warning
R
DLY
+
–
9
10
2
2
I
H
I
On/Off
H
R
H
+
Uncommitted
Comparator
+
–
MPU Reset
6
1
4, 5, 12, 13
3.6 k
6.2 k
t
R
C
DLY
DLY DLY
C
DLY
Sink Only
Positive True Logic
+
–
=
7
MOTOROLA ANALOG IC DEVICE DATA
MC34160 MC33160
OUTLINE DIMENSIONS
P SUFFIX
PLASTIC PACKAGE
CASE 648C–03
(DIP–16)
–A–
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
3. DIMENSION L TO CENTER OF LEADS WHEN
FORMED PARALLEL.
4. DIMENSION B DOES NOT INCLUDE MOLD
FLASH.
16
1
9
8
–B–
L
5. INTERNAL LEAD CONNECTION, BETWEEN 4
AND 5, 12 AND 13.
INCHES
MILLIMETERS
NOTE 5
DIM
A
B
C
D
E
MIN
MAX
0.840
0.260
0.185
0.021
MIN
18.80
6.10
3.69
0.38
MAX
21.34
6.60
4.69
0.53
0.740
0.240
0.145
0.015
C
0.050 BSC
1.27 BSC
–T–
SEATING
PLANE
M
F
G
J
K
L
M
N
0.040
0.100 BSC
0.008
0.115
0.070
1.02
2.54 BSC
0.20
2.92
1.78
N
K
0.015
0.135
0.38
3.43
E
J 16 PL
F
G
D 16 PL
0.300 BSC
10
0.040
7.62 BSC
10
0.39 1.01
M
S
0.13 (0.005)
T
B
0
°
°
0°
°
0.015
M
S
0.13 (0.005)
T
A
DW SUFFIX
PLASTIC PACKAGE
CASE 751G–02
(SOP–16L)
–A–
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: MILLIMETER.
3. DIMENSIONS A AND B DO NOT INCLUDE MOLD
PROTRUSION.
16
9
8
–B– P 8 PL
M
M
0.25 (0.010)
B
4. MAXIMUM MOLD PROTRUSION 0.15 (0.006) PER
SIDE.
1
5. DIMENSION D DOES NOT INCLUDE DAMBAR
PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.13 (0.005) TOTAL IN
EXCESS OF D DIMENSION AT MAXIMUM
MATERIAL CONDITION.
G 14 PL
J
MILLIMETERS
INCHES
F
DIM
A
B
C
D
MIN
10.15
7.40
2.35
0.35
0.50
MAX
10.45
7.60
2.65
0.49
0.90
MIN
MAX
0.411
0.299
0.104
0.019
0.035
0.400
0.292
0.093
0.014
0.020
R X 45°
F
C
1.27 BSC
0.050 BSC
G
J
K
M
P
R
0.25
0.10
0.32
0.25
0.010
0.004
0.012
0.009
–T–
SEATING
PLANE
M
K
0°
7
°
0°
7°
D 16 PL
0.25 (0.010)
10.05
0.25
10.55
0.75
0.395
0.010
0.415
0.029
M
S
S
T
A
B
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