MC34063ADR2G [ONSEMI]
1.5 A, Step−Up/Down/ Inverting Switching Regulators; 1.5 A ，步上/下/反相开关稳压器
| 型号： | MC34063ADR2G |
| 厂家： | 
ONSEMI |
| 描述： | 1.5 A, Step−Up/Down/ Inverting Switching Regulators |
| 文件： | 总13页 (文件大小：160K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
MC34063A, MC33063A,
NCV33063A
1.5 A, Step−Up/Down/
Inverting Switching
Regulators
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The MC34063A Series is a monolithic control circuit containing the
primary functions required for DC−to−DC converters. These devices
consist of an internal temperature compensated reference, comparator,
controlled duty cycle oscillator with an active current limit circuit,
driver and high current output switch. This series was specifically
designed to be incorporated in Step−Down and Step−Up and
Voltage−Inverting applications with a minimum number of external
components. Refer to Application Notes AN920A/D and AN954/D
for additional design information.
MARKING
DIAGRAMS
8
SOIC−8
D SUFFIX
CASE 751
3x063
ALYWA
G
8
1
1
Features
• Operation from 3.0 V to 40 V Input
• Low Standby Current
8
3x063AP1
AWL
YYWWG
• Current Limiting
• Output Switch Current to 1.5 A
• Output Voltage Adjustable
• Frequency Operation to 100 kHz
• Precision 2% Reference
PDIP−8
P, P1 SUFFIX
CASE 626
1
8
8
33063AVP
AWL
• Pb−Free Packages are Available
1
YYWWG
1
1
8
7
6
Drive
Collector
Switch
Collector
x
A
L, WL
Y, YY
= 3 or 4
Q2
= Assembly Location
= Wafer Lot
S Q
R
Q1
= Year
100
I
pk
Sense
W, WW = Work Week
G or G
2
3
Switch
Emitter
= Pb−Free Package
I
pk
Oscillator
C
T
PIN CONNECTIONS
Timing
Capacitor
V
CC
Comparator
1.25 V
Reference
Regulator
+
−
Switch
Collector
Driver
Collector
8
7
6
5
1
2
3
4
Switch
Emitter
5
4
Comparator
Inverting
Input
I
pk
Sense
GND
Timing
Capacitor
V
CC
(Bottom View)
Comparator
Inverting
Input
GND
This device contains 51 active transistors.
(Top View)
Figure 1. Representative Schematic Diagram
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 11 of this data sheet.
©
Semiconductor Components Industries, LLC, 2007
1
Publication Order Number:
February, 2007 − Rev. 19
MC34063A/D
MC34063A, MC33063A, NCV33063A
MAXIMUM RATINGS
Rating
Symbol
Value
Unit
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
mA
A
Power Supply Voltage
V
40
CC
Comparator Input Voltage Range
Switch Collector Voltage
V
−0.3 to +40
IR
V
V
40
40
C(switch)
E(switch)
Switch Emitter Voltage (V
= 40 V)
Pin 1
Switch Collector to Emitter Voltage
Driver Collector Voltage
V
40
CE(switch)
V
40
C(driver)
C(driver)
Driver Collector Current (Note 1)
Switch Current
I
100
1.5
I
SW
Power Dissipation and Thermal Characteristics
Plastic Package, P, P1 Suffix
T = 25°C
P
1.25
100
W
A
D
Thermal Resistance
R
q
°C/W
JA
SOIC Package, D Suffix
T = 25°C
P
625
160
mW
°C/W
°C
A
D
Thermal Resistance
Operating Junction Temperature
Operating Ambient Temperature Range
MC34063A
R
q
JA
T
+150
J
T
A
°C
0 to +70
−40 to +125
−40 to +85
−65 to +150
MC33063AV, NCV33063A
MC33063A
Storage Temperature Range
T
stg
°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. Maximum package power dissipation limits must be observed.
2. This device series contains ESD protection and exceeds the following tests: Human Body Model 4000 V per MIL−STD−883, Method 3015.
Machine Model Method 400 V.
3. NCV prefix is for automotive and other applications requiring site and change control.
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2
MC34063A, MC33063A, NCV33063A
ELECTRICAL CHARACTERISTICS (V = 5.0 V, T = T to T [Note 4], unless otherwise specified.)
high
CC
A
low
Characteristics
Symbol
Min
Typ
Max
Unit
OSCILLATOR
Frequency (V
= 0 V, C = 1.0 nF, T = 25°C)
f
24
24
33
35
42
42
kHz
mA
mA
−
Pin 5
T
A
osc
Charge Current (V = 5.0 V to 40 V, T = 25°C)
I
CC
A
chg
Discharge Current (V = 5.0 V to 40 V, T = 25°C)
I
140
5.2
250
220
6.5
300
260
7.5
350
CC
A
dischg
Discharge to Charge Current Ratio (Pin 7 to V , T = 25°C)
I
/I
CC
A
dischg chg
Current Limit Sense Voltage (I
= I
, T = 25°C)
V
ipk(sense)
mV
chg
dischg
A
OUTPUT SWITCH (Note 5)
Saturation Voltage, Darlington Connection
(I = 1.0 A, Pins 1, 8 connected)
V
−
−
1.0
1.3
0.7
V
V
CE(sat)
CE(sat)
SW
Saturation Voltage (Note 6)
V
0.45
(I
= 1.0 A, R
= 82 W to V , Forced b ] 20)
SW
Pin 8
CC
DC Current Gain (I
= 1.0 A, V = 5.0 V, T = 25°C)
h
50
−
75
−
−
SW
CE
A
FE
Collector Off−State Current (V = 40 V)
I
0.01
100
mA
CE
C(off)
COMPARATOR
Threshold Voltage
V
V
th
T = 25°C
1.225
1.21
1.25
−
1.275
1.29
A
T = T
to T
A
low
high
Threshold Voltage Line Regulation (V = 3.0 V to 40 V)
Reg
mV
CC
line
MC33063A, MC34063A
MC33063AV, NCV33063A
−
−
1.4
1.4
5.0
6.0
Input Bias Current (V = 0 V)
I
−
−20
−400
nA
in
IB
TOTAL DEVICE
Supply Current (V = 5.0 V to 40 V, C = 1.0 nF, Pin 7 = V
,
I
CC
−
−
4.0
mA
CC
T
CC
V
> V , Pin 2 = GND, remaining pins open)
th
Pin 5
4. T
T
= 0°C for MC34063A, −40°C for MC33063A, AV, NCV33063A
high
low
= +70°C for MC34063A, +85°C for MC33063A, +125°C for MC33063AV, NCV33063A
5. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient temperature as possible.
6. If the output switch is driven into hard saturation (non−Darlington configuration) at low switch currents (≤ 300 mA) and high driver currents
(≥ 30 mA), it may take up to 2.0 ms for it to come out of saturation. This condition will shorten the off time at frequencies ≥ 30 kHz, and is
magnified at high temperatures. This condition does not occur with a Darlington configuration, since the output switch cannot saturate. If a
non−Darlington configuration is used, the following output drive condition is recommended:
I
output
C
Forced b of output switch :
w 10
I
driver – 7.0 mA *
C
* The 100 W resistor in the emitter of the driver device requires about 7.0 mA before the output switch conducts.
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3
MC34063A, MC33063A, NCV33063A
1000
V
Pin 7 = V
= 5.0 V
500
200
100
50
CC
CC
Pin 5 = GND
= 25°C
T
A
t
on
20
10
5.0
2.0
1.0
V
= 5.0 V
CC
Pin 7 = V
Pins 1, 5, 8 = Open
t
off
C
T
= 1.0 nF
= 25°C
CC
T
Pin 2 = GND
A
0.01 0.02
0.05 0.1 0.2
0.5 1.0 2.0
5.0 10
10 ms/DIV
C , OSCILLATOR TIMING CAPACITOR (nF)
T
Figure 2. Output Switch On−Off Time versus
Oscillator Timing Capacitor
Figure 3. Timing Capacitor Waveform
1.1
1.0
0.9
0.8
0.7
0.6
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.0
Darlington Connection
V
Pin 7 = V
= 5.0 V
CC
0.5
0.4
0.3
0.2
CC
Forced b = 20
Pins 2, 3, 5 = GND
= 25°C
(See Note 7)
T
A
V
= 5.0 V
Pins 1, 7, 8 = V
CC
CC
Pins 3, 5 = GND
T
= 25°C
(See Note 7)
A
0.1
0
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
I , EMITTER CURRENT (A)
E
I , COLLECTOR CURRENT(A)
C
Figure 4. Emitter Follower Configuration Output
Saturation Voltage versus Emitter Current
Figure 5. Common Emitter Configuration Output
Switch Saturation Voltage versus
Collector Current
3.6
3.2
2.8
2.4
2.0
1.6
1.2
0.8
0.4
0
400
380
V
= 5.0 V
= I
CC
360
340
I
chg dischg
320
300
280
260
240
220
200
C
Pin 7 = V
= 1.0 nF
T
CC
Pin 2 = GND
0
5.0
10
15
20
25
30
35
40
−55
−25
0
25
50
75
100
125
T , AMBIENT TEMPERATURE (°C)
A
V
, SUPPLY VOLTAGE (V)
CC
Figure 6. Current Limit Sense Voltage
versus Temperature
Figure 7. Standby Supply Current versus
Supply Voltage
7. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient temperature as possible.
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MC34063A, MC33063A, NCV33063A
170 mH
L
8
7
1
180
S
R
Q
Q2
Q1
2
1N5819
I
pk
C
R
0.22
T
sc
OSC
3
6
5
V
in
12 V
V
C
CC
T
+
100
1.25 V
Ref
Reg
+
−
Comp.
1500
pF
4
1.0 mH
R2
47 k
V
out
28 V/175 mA
V
out
+
+
R1 2.2 k
100
330
C
O
Optional Filter
Test
Conditions
= 8.0 V to 16 V, I = 175 mA
Results
Line Regulation
Load Regulation
Output Ripple
Efficiency
V
in
V
in
V
in
V
in
V
in
30 mV = 0.05%
10 mV = 0.017%
400 mVpp
O
= 12 V, I = 75 mA to 175 mA
O
= 12 V, I = 175 mA
O
= 12 V, I = 175 mA
87.7%
O
Output Ripple With Optional Filter
= 12 V, I = 175 mA
40 mVpp
O
Figure 8. Step−Up Converter
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5
MC34063A, MC33063A, NCV33063A
R
V
out
V
out
8
7
6
1
2
8
7
6
1
2
R
R
sc
sc
V
in
V
in
R ³ 0 for
constant V
in
Figure 9. External Current Boost Connections for IC Peak Greater than 1.5 A
9a. External NPN Switch
9b. External NPN Saturated Switch
(See Note 8)
8. If the output switch is driven into hard saturation (non−Darlington configuration) at low switch currents (≤ 300 mA) and high driver currents
(≥30 mA), it may take up to 2.0 ms to come out of saturation. This condition will shorten the off time at frequencies ≥ 30 kHz, and is magnified
at high temperatures. This condition does not occur with a Darlington configuration, since the output switch cannot saturate. If a
non−Darlington configuration is used, the following output drive condition is recommended.
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6
MC34063A, MC33063A, NCV33063A
8
7
6
1
S
R
Q
Q2
Q1
2
I
pk
R
0.33
sc
C
T
OSC
1N5819
3
V
in
25 V
V
CC
L
220 mH
C
+
T
100
1.25 V
Ref
Reg
+
−
Comp.
470
pF
5
4
1.0 mH
V
R2
out
5.0 V/500 mA
V
out
3.6 k
+
+
R1 1.2 k
100
470
C
O
Optional Filter
Test
Conditions
= 15 V to 25 V, I = 500 mA
Results
Line Regulation
Load Regulation
Output Ripple
V
in
V
in
V
in
V
in
V
in
V
in
12 mV = 0.12%
3.0 mV = 0.03%
120 mVpp
1.1 A
O
= 25 V, I = 50 mA to 500 mA
O
= 25 V, I = 500 mA
O
Short Circuit Current
Efficiency
= 25 V, R = 0.1 W
L
= 25 V, I = 500 mA
83.7%
O
Output Ripple With Optional Filter
= 25 V, I = 500 mA
40 mVpp
O
Figure 10. Step−Down Converter
1
2
8
7
6
1
2
V
8
7
V
out
R
R
sc
sc
V
in
V
in
6
Figure 11. External Current Boost Connections for IC Peak Greater than 1.5 A
11a. External NPN Switch 11b. External PNP Saturated Switch
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MC34063A, MC33063A, NCV33063A
8
1
S
R
Q
Q2
Q1
7
6
2
3
I
88 mH
pk
L
+
R
0.24
sc
C
T
OSC
V
in
4.5 V to 6.0 V
V
CC
+
100
1.25 V
Ref
Reg
1500
pF
+
−
1N5819
Comp.
5
4
1.0 mH
R1
V
out
−12 V/100 mA
V
out
953
1000 mf
100
C
R2 8.2 k
O
+
+
Optional Filter
Test
Conditions
= 4.5 V to 6.0 V, I = 100 mA
Results
Line Regulation
Load Regulation
Output Ripple
V
in
V
in
V
in
V
in
V
in
V
in
3.0 mV = 0.012%
0.022 V = 0.09%
500 mVpp
O
= 5.0 V, I = 10 mA to 100 mA
O
= 5.0 V, I = 100 mA
O
Short Circuit Current
Efficiency
= 5.0 V, R = 0.1 W
910 mA
L
= 5.0 V, I = 100 mA
62.2%
O
Output Ripple With Optional Filter
= 5.0 V, I = 100 mA
70 mVpp
O
Figure 12. Voltage Inverting Converter
8
7
6
1
1
2
V
out
8
7
2
3
V
out
V
in
+
3
4
V
in
6
+
4
Figure 13. External Current Boost Connections for IC Peak Greater than 1.5 A
13a. External NPN Switch 13b. External PNP Saturated Switch
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MC34063A, MC33063A, NCV33063A
5.45′′
2.500′′
(Top view, copper foil as seen through the board from the component side)
MC34063A
MC34063A
MC34063A
(Top View, Component Side)
*Optional Filter.
Figure 14. Printed Circuit Board and Component Layout
(Circuits of Figures 8, 10, 12)
INDUCTOR DATA
Converter
Step−Up
Inductance (mH)
Turns/Wire
170
220
88
38 Turns of #22 AWG
48 Turns of #22 AWG
28 Turns of #22 AWG
Step−Down
Voltage−Inverting
All inductors are wound on Magnetics Inc. 55117 toroidal core.
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MC34063A, MC33063A, NCV33063A
Calculation
/t
Step−Up
Step−Down
Voltage−Inverting
t
V
) V * V
V
) V
|V | ) V
on off
out
out
out
F
F
in(min)
sat
F
V
* V
* V
V
* V
V
* V
sat
out
sat
in(min)
in
in(min)
(t + t
on
)
off
1
f
1
f
1
f
t
t
) t
t
) t
t
) t
off
on
t
on
on
t
off
off
) 1
off
t
t
on
on
off
on
) 1
) 1
t
t
off
(t + t ) − t
off
(t + t ) − t
off
t
(t + t ) − t
on
on
on
off
off
off
off
on
off
−5
−5
−5
C
T
4.0 x 10
t
4.0 x 10
t
4.0 x 10
t
on
on
on
I
pk(switch)
t
t
t
t
on
off
on
off
2I
2I
ǒ
) 1
Ǔ
2I
ǒ
) 1
Ǔ
out(max)
out(max)
0.3/I
out(max)
0.3/I
R
sc
0.3/I
pk(switch)
pk(switch)
pk(switch)
L
(min)
(V
* V
)
(V
* V
* V
)
(V
* V
)
sat
sat
pk(switch)
out
sat
in(min)
I
in(min)
I
in(min)
I
t
t
t
ǒ
Ǔ ǒ
Ǔ ǒ
Ǔ
on(max)
on(max)
on(max)
pk(switch)
pk(switch)
C
I
t
I
(t
) t
)
I
t
O
on
on
on
out
out
pk(switch)
8V
off
9
9
V
V
ripple(pp)
ripple(pp)
ripple(pp)
V
V
= Saturation voltage of the output switch.
= Forward voltage drop of the output rectifier.
sat
F
The following power supply characteristics must be chosen:
V
− Nominal input voltage.
|V
− Desired output voltage,
− Desired output current.
− Minimum desired output switching frequency at the selected values of V and I .
in
R2
R1
| + 1.25 ǒ1 )
Ǔ
V
out
out
I
f
out
min
in
O
V
− Desired peak−to−peak output ripple voltage. In practice, the calculated capacitor value will need to be increased due to its
equivalent series resistance and board layout. The ripple voltage should be kept to a low value since it will directly affect the
line and load regulation.
ripple(pp)
NOTE: For further information refer to Application Note AN920A/D and AN954/D.
Figure 15. Design Formula Table
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10
MC34063A, MC33063A, NCV33063A
ORDERING INFORMATION
Device
†
Package
Shipping
MC33063AD
SOIC−8
98 Units / Rail
98 Units / Rail
MC33063ADG
SOIC−8
(Pb−Free)
MC33063ADR2
SOIC−8
2500 Units / Tape & Reel
2500 Units / Tape & Reel
MC33063ADR2G
SOIC−8
(Pb−Free)
MC33063AP1
PDIP−8
50 Units / Rail
50 Units / Rail
MC33063AP1G
PDIP−8
(Pb−Free)
MC33063AVD
SOIC−8
98 Units / Rail
98 Units / Rail
MC33063AVDG
SOIC−8
(Pb−Free)
MC33063AVDR2
SOIC−8
MC33063AVDR2G
SOIC−8
(Pb−Free)
2500 Units / Tape & Reel
NCV33063AVDR2*
NCV33063AVDR2G*
SOIC−8
SOIC−8
(Pb−Free)
MC33063AVP
PDIP−8
50 Units / Rail
50 Units / Rail
MC33063AVPG
PDIP−8
(Pb−Free)
MC34063AD
SOIC−8
98 Units / Rail
98 Units / Rail
MC34063ADG
SOIC−8
(Pb−Free)
MC34063ADR2
SOIC−8
2500 Units / Tape & Reel
2500 Units / Tape & Reel
MC34063ADR2G
SOIC−8
(Pb−Free)
MC34063AP1
PDIP−8
50 Units / Rail
50 Units / Rail
MC34063AP1G
PDIP−8
(Pb−Free)
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specification Brochure, BRD8011/D.
*NCV33063A: T
change control.
= −40°C, T
= +125°C. Guaranteed by design. NCV prefix is for automotive and other applications requiring site and
high
low
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11
MC34063A, MC33063A, NCV33063A
PACKAGE DIMENSIONS
SOIC−8 NB
D SUFFIX
CASE 751−07
ISSUE AG
NOTES:
−X−
1. DIMENSIONING AND TOLERANCING PER
ANSI Y14.5M, 1982.
A
2. CONTROLLING DIMENSION: MILLIMETER.
3. DIMENSION A AND B DO NOT INCLUDE
MOLD PROTRUSION.
4. MAXIMUM MOLD PROTRUSION 0.15 (0.006)
PER SIDE.
5. DIMENSION D DOES NOT INCLUDE DAMBAR
PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.127 (0.005) TOTAL
IN EXCESS OF THE D DIMENSION AT
MAXIMUM MATERIAL CONDITION.
6. 751−01 THRU 751−06 ARE OBSOLETE. NEW
STANDARD IS 751−07.
8
5
4
S
M
M
B
0.25 (0.010)
Y
1
K
−Y−
G
MILLIMETERS
DIM MIN MAX
INCHES
MIN
MAX
0.197
0.157
0.069
0.020
C
N X 45
_
A
B
C
D
G
H
J
K
M
N
S
4.80
3.80
1.35
0.33
5.00 0.189
4.00 0.150
1.75 0.053
0.51 0.013
SEATING
PLANE
−Z−
0.10 (0.004)
1.27 BSC
0.050 BSC
M
0.10
0.19
0.40
0
0.25 0.004
0.25 0.007
1.27 0.016
0.010
0.010
0.050
8
0.020
0.244
J
H
D
8
0
_
_
_
_
M
S
S
X
0.25 (0.010)
Z
Y
0.25
5.80
0.50 0.010
6.20 0.228
SOLDERING FOOTPRINT*
1.52
0.060
7.0
0.275
4.0
0.155
0.6
0.024
1.270
0.050
mm
inches
ǒ
Ǔ
SCALE 6:1
*For additional information on our Pb−Free strategy and soldering
details, please download the ON Semiconductor Soldering and
Mounting Techniques Reference Manual, SOLDERRM/D.
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12
MC34063A, MC33063A, NCV33063A
PACKAGE DIMENSIONS
PDIP−8
P, P1 SUFFIX
CASE 626−05
ISSUE L
NOTES:
1. DIMENSION L TO CENTER OF LEAD WHEN
FORMED PARALLEL.
2. PACKAGE CONTOUR OPTIONAL (ROUND OR
SQUARE CORNERS).
8
5
3. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
−B−
MILLIMETERS
DIM MIN MAX
INCHES
MIN
1
4
MAX
0.400
0.260
0.175
0.020
0.070
A
B
C
D
F
9.40
6.10
3.94
0.38
1.02
10.16 0.370
6.60 0.240
4.45 0.155
0.51 0.015
1.78 0.040
F
−A−
NOTE 2
L
G
H
J
2.54 BSC
0.100 BSC
0.76
0.20
2.92
1.27 0.030
0.30 0.008
3.43
0.050
0.012
0.135
K
L
0.115
C
7.62 BSC
0.300 BSC
M
N
−−−
0.76
10
−−−
1.01 0.030
10
0.040
_
_
J
M
−T−
SEATING
PLANE
N
D
K
G
H
M
M
M
B
0.13 (0.005)
T
A
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