1
MIK34063A DC-to-DC CONVERTER CONTROLLER
MI
KRON
JS
C
h
ttp:
/
/www.
mikr
o
n
.
r
u
M
a
r
c
h
2003
CONTENTS
Page
GENERAL DESCRIPTION
1
FEATURES
1
SCHEMATIC DIAGRAM
2
PIN CONNECTIONS
2
ABSOLUTE MAXIMUM RATINGS
2
ELECTRICAL CHARACTERISTICS
3
DESIGN FORMULA TABLE
4
TYPICAL PERFORMANCE CHARACTERISTICS 5
O
UTPUT
S
WITCH
O
N
-O
FF
T
IME
VERSUS
O
SCILLATOR
T
IMING
C
APACITOR
5
T
IMING
C
APACITOR
W
AVEFORM
5
E
MITTER
F
OLLOWER
C
ONFIGURATION
O
UTPUT
S
ATURATION
V
OLTAGE
VERSUS
E
MITTER
C
URRENT
5
C
OMMON
E
MITTER
C
ONFIGURATION
O
UTPUT
S
WITCH
S
ATURATION
V
OLTAGE
VERSUS
C
OLLECTOR
C
URRENT
5
C
URRENT
L
IMIT
S
ENSE
V
OLTAGE
VERSUS
T
EMPERATURE
5
S
TANDBY
S
UPPLY
C
URRENT
VERSUS
S
UPPLY
V
OLTAGE
5
TYPICAL APPLICATION CIRCUIT 6
CONTENTS
Page
S
TEP
-U
P
C
ONVERTER
6
S
TEP
-D
OWN
C
ONVERTER
6
V
OLTAGE
I
NVERTING
C
ONVERTER
6
S
TEP
-U
P
WITH
E
XTERNAL
NPN S
WITCH
7
S
TEP
-U
P
WITH
E
XTERNAL
NPN S
ATURATED
S
WITCH
7
S
TEP
-D
OWN
WITH
E
XTERNAL
NPN S
WITCH
7
S
TEP
-D
OWN
WITH
E
XTERNAL
PNP S
ATURATED
S
WITCH
7
V
OLTAGE
I
NVERTING
WITH
E
XTERNAL
NPN
S
WITCH
8
V
OLTAGE
I
NVERTING
WITH
E
XTERNAL
PNP
S
ATURATED
S
WITCH
8
D
UAL
O
UTPUT
V
OLTAGE
8
H
IGHER
O
UTPUT
P
OWER
, H
IGHER
I
NPUT
V
OLTAGE
8
PHYSICAL DIMENSIONS
AND
MARKING
DIAGRAMS
9
SOP8
9
DIP8
9
ORDERING INFORMATION
10
MIK34063A
DC TO DC CONVERTER CONTROLLER
-- --
GENERAL DESCRIPTION
The MIK34063A is a monolithic control circuit
containing the primary functions required for
DCtoDC converters. This device consist of an
internal temperature compensated reference
comparator, controlled duty cycle oscillator with
an active current limit circuit, driver and high
current output switch. It can be used for Step
Down and StepUp and VoltageInverting
applications with a minimum number of external
components.
FEATURES
Operation from 3.0V to 40V.
Current limiting.
Low standby current.
Output switch current to 1.5A without
external transistors.
Frequency of operation from 100Hz to
100kHz.
Step-up, step-down or inverting switch
regulators.
Precision 2% Reference.
Output voltage adjustable.
DATA SHEET
M
ARCH
2003
N
O
. 00002
R
EV
. 1-03
REPLACEMENT
of
MC34063A
2
DC-to-DC CONVERTER CONTROLLER MIK34063A
Design by Vladimir F.Lityaghin /e-mail: lityaghin@mail.ru /Tel: +7(095)532-64-54
MI
KRON
JS
C
h
ttp:
/
/www.
mikr
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.
r
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M
a
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c
h
2003
SCHEMATIC DIAGRAM
PIN CONNECTIONS
(top view)
MIK34063AP
DIP-8
ABSOLUTE MAXIMUM RATINGS
NOTES:
1: Maximum package power dissipation limit must be observed.
2: This value depends from thermal design of PCB on which the device is mounted.
S Q
R
100
Q2
Q1
COMPARATOR
+
-
1,25V
REFERENCE
REGULATOR
C
T
OSCILLATOR
I
pk
SWITCH COLLECTOR
1
DRIVER COLLECTOR
8
SWITCH EMITTER
2
TIMING CAPACITOR
3
I
PK
SENSE
7
GND
4
V
CC
6
COMPARATOR
INVERTING INPUT
5
SOP-8
MIK34063AD
1
2
3
4
SW ITCH COLLECTOR
SW ITCH EM ITTER
TIM ING CA PA CITOR
GND
DRIVE COLLECTOR
I
PEAK
SENSE
Vcc
COM PA RA TOR
INVERTING INPUT
8
7
6
5
!
SYMBOL
PARAMETER
VALUE
(MAX)
UNIT
V
CC
Power Supply Voltage
40
.0
V
V
IR
Comparator Input Voltage Range
-0.3 to 40
.0
V
V
C(switch)
Switch Collector Voltage
40
.0
V
V
E(switch)
Switch Emitter Voltage (V
PIN
1= 40 V)
40
.0
V
V
CE(switch)
Switch Collector to Emitter Voltage
40
.0
V
V
C(driver)
Driver Collector Voltage
40
.0
V
I
C(driver)
Driver Collector Current (Note 1)
100
.0
mA
I
SW
Switch Current
1.5
A
T
J
Operating Junction Temperature
150
.0
C
T
A
Operating Ambient Temperature Range
0 to 70
.0
C
T
STG
Storage Temperature Range
-65 to 150
.0
C
POWER DISSIPATION AND THERMAL CHARACTERISTICS
DIP-8 plastic package (MIK34063AP)
P
D
T
A
= 25C
1.25
W
P
JA
Thermal Resistance Junction-ambient (Note 2)
100
.00
C/W
SOP-8 plastic package (MIK34063A)
P
D
T
A
= 25C
0.625 W
P
JA
Thermal Resistance Junction-ambient (Note 2)
160
.000
C/W
3
MIK34063A DC-to-DC CONVERTER CONTROLLER
MI
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C
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NOTES:
3. T
LOW
= 0 C; T
HIGH
= +70C.
4. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient
temperature as possible.
5. If the output switch is driven into hard saturation (nonDarlington configuration) at low switch currents (
300 mA)
and high driver currents (
30 mA), it may take up to 2.0
s 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 nonDarlington configuration is used,
the following output drive condition is recommended:
Forced
of output current switch
I
C OUTPUT
/ (I
C DRIVER
- 7.0 mA
*
)
10
*
The 100
resistor in the emitter of the driver device requires about 7.0 mA before the output switch conducts.
ELECTRICAL CHARACTERISTICS
(Refer to test circuits; V
CC
= 5V;
T
A
= T
LOW
to T
HIGH
(see Note 3), unless otherwise specified)
SYMBOL CHARACTERISTICS MIN
TYP
MAX
UNIT
OSCILLATOR
F
OSC
Frequency (Vpin5 = 0V; C
T
= 1.0 nF;
T
A
= 25C)
24
.0
33
.0
42
.0
kHz
I
CHG
Charge Current (V
CC
= 5.0V to 40V;
T
A
= 25C)
24
.0
35
.0
42
.0
A
I
DISCHG
Discharge Current (V
CC
= 5.0V to 40V;
T
A
= 25C)
140
.0
220
.0
260
.0
A
I
DISCHG
/I
CHG
Discharge to Charge Current Ratio (Pin 7 to V
CC
;
T
A
= 25C)
5.2
6.5
7.5
--
V
IPK(SENCE)
Current Limit Sense Voltage (I
CHG
= I
DISCHG
;
T
A
= 25C)
250
.0
300
.0
350
.0
mV
OUTPUT SWITCH (Note 4)
V
CE(SAT)
Saturation Voltage. Darlington Connection (I
SW
= 1.0 A;
Pins 1. 8 connected)
-- 1
.00
1.3
V
V
CE(SAT)
Saturation Voltage (see Note 5)
(I
SW
= 1.0 A; Rpin 8 = 82
to V
CC
; Forced
20)
-- 0.45
0.7
V
h
FE
DC Current Gain (I
SW
= 1.0 A; V
CE
= 5.0 V;
T
A
= 25C)
50 75
.00
-- --
I
C(OFF)
Collector Off-State Current (V
CE
= 40 V)
-- 40
.00
100
.0
A
COMPARATOR
Threshold Voltage
(T
A
=25C)
1.225
1.25 1.275
V
TH
(T
A
=T
LOW
to T
HIGH
)
1.21
0
-- 1.29
0
V
Reg
line
Threshold Voltage Line Regulation (Vcc=3.0V to 40V)
-- 1.4
0
5
.000
mV
I
IB
Input Bias Current (V
IN
=0 V)
--
-20
.00
-400 nA
TOTAL DEVICE
I
CC
Supply Current (V
CC
= 5.0 V to 40 V; C
T
= 1.0 nF; Pin 7 = V
CC
;
Vpin 5 > V
TH
; Pin 2 = GND; remaining pins open)
-- --
4.0
mA
4
DC-to-DC CONVERTER CONTROLLER MIK34063A
Design by Vladimir F.Lityaghin /e-mail: lityaghin@mail.ru /Tel: +7(095)532-64-54
MI
KRON
JS
C
h
ttp:
/
/www.
mikr
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a
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2003
DESIGN FORMULA TABLE
V
OUT
+ V
F
-- V
IN(MIN)
V
IN(MIN)
-- V
SAT
V
OUT
+ V
F
V
IN(MIN)
--
V
SAT
-- V
OUT
V
OUT
+ V
F
V
IN
-- V
SAT
1
f
MIN
4.0 x 10
-5
t
ON
4.0 x 10
-5
t
ON
4.0 x 10
-5
t
ON
I
OUT
t
ON
V
RIPPLE(PP)
9
0.3 I
PK(SWITCH)
2 I
OUT(MAX)
t
ON(MAX)
(V
IN(MIN)
-- V
SAT
)
I
PK(SWITCH)
(
I
OUT
t
ON
V
RIPPLE(PP)
9
I
PK(SWITCH)
(t
ON
+ t
OFF
)
8 V
RIPPLE(PP)
) (
t
ON(MAX)
(V
IN(MIN)
-- V
SAT
-- V
OUT
)
I
PK(SWITCH)
)
t
ON(MAX)
(V
IN(MIN)
-- V
SAT
)
I
PK(SWITCH)
(
)
2 I
OUT(MAX)
+ 1
( )
t
ON
t
OFF
t
ON
t
OFF
(t
ON
+ t
OFF
)
MAX
C
T
I
PK(SWITCH)
R
SC
L
(MIN)
C
O
1
f
MIN
1
f
MIN
2 I
OUT(MAX)
+ 1
( )
t
ON
t
OFF
0.3 I
PK(SWITCH)
0.3
I
PK(SWITCH)
CALCULATION
STEP-UP
STEP-DOWN
VOLTAGE-INVERTING
TERMS and DEFINITIONS
V
SAT
= saturation voltage of the output switch.
V
F
= forward voltage drop of the output rectifier.
V
IN
nominal input voltage
V
OUT
desired output voltage,
I
OUT
desired output current
f
MIN
minimum desired output switching frequency at the selected values of V
IN
and I
O
V
RIPPLE(PP)
desired peaktopeak 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.
The following power supply characteristics must be chosen:
V
OUT
= 1.25
R2
R1
1 +
( )
5
MIK34063A DC-to-DC CONVERTER CONTROLLER
MI
KRON
JS
C
h
ttp:
/
/www.
mikr
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M
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2003
OUTPUT SWITCH ONOFF TIME
VERSUS
OSCILLATOR TIMING CAPACITOR
TIMING CAPACITOR WAVEFORM
EMITTER FOLLOWER CONFIGURATION OUTPUT
SATURATION VOLTAGE
VERSUS
EMITTER CURRENT
COMMON EMITTER CONFIGURATION OUTPUT
SWITCH SATURATION VOLTAGE
VERSUS
COLLECTOR CURRENT
CURRENT LIMIT SENSE VOLTAGE
VERSUS
TEMPERATURE
STANDBY SUPPLY CURRENT
VERSUS
SUPPLY VOLTAGE
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
0.2
0
0.4
0.6
0.8
1.0
1.2
1.4
1.6
TYPICAL PERFORMANCE CHARACTERISTICS
500
1000
200
20
2
1
5
10
50
100
0.01 0.02
0.05 0.1
0.2
0.5 1
2
5
10
C
T
- OSCILLATOR TIMING CAPACITOR (nF)
t
ON
-
O
F
F
-
OU
TPU
T
SW
ITCH
O
N
-OFF
TIME
(
s
)
10s / DIV
V
OS
C
-
OS
CILL
ATOR V
O
L
T
AGE
(v
)
V
CE
(
s
a
t
)
-
S
A
TUR
A
TI
O
N
V
O
L
T
AGE
(V)
0.8
0.4
1.2
1.6
2.0
2.4
2.8
3.2
3.6
5.0
10
15
20
25
30
35
40
0
200
220
240
260
280
300
320
340
360
380
400
-55
-25
0
25
50
75
100
125
t
ON
0.2
0.4
0.6
0.8
1.0
1.1
0.9
0.7
0.1
0.3
0.5
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
0
200 m
V
/
DI
V
I
E
- EMITTER CURRENT (A)
V
CC
= 5.0V
Pin7 = V
CC
Pin5 = GND
T
A
= 25C
V
CC
= 5.0V
Pins 1,7,8 = V
CC
Pins 3,5 = GND
T
A
= 25C
t
OFF
V
CC
= 5.0V; Pins 1,5,8 = Open
Pin7 = V
CC
;
C
T
= 1.0 nF
Pin2 = GND; T
A
= 25C
V
CC
= 5.0V
Pins 7 = V
CC
Pins 2,3,5 = GND
T
A
= 25C
Forced = 20
Darlington Connection
I
C
- COLLECTOR CURRENT (A)
V
CE
(
s
a
t
)
-
S
A
TUR
A
TI
O
N
V
O
L
T
AGE
T
A
- AMBIENT TEMPERATURE (C)
V
IP
KE
(s
e
n
s
e
)
-
CU
RRENT LIMIT SE
NSE
V
O
LTA
G
E
(V)
V
CC
= 5.0V
Ichg = Idischg
I
CC
-
S
U
P
P
LY
CU
RRENT
(mA
)
V
CC
- SUPPLY VOLTAGE (V)
C
T
= 1.0 nF
Pin 7 = V
CC
Pin 2 = GND
6
DC-to-DC CONVERTER CONTROLLER MIK34063A
Design by Vladimir F.Lityaghin /e-mail: lityaghin@mail.ru /Tel: +7(095)532-64-54
MI
KRON
JS
C
h
ttp:
/
/www.
mikr
o
n
.
r
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M
a
r
c
h
2003
L1
1
3
4
6
7
Q1
S Q
R
5
8
Q2
Com parator
Ipk
C
T
OSCILLATOR
R1
R2
V
IN
V
OUT
+
-
2
R4
R3
C2
C3
C1
D1
1,25V
Reference
Regulator
L2
C4
Optional Filter
STEP-UP CONVERTER
STEP-UP CONVERTER -- P
RINTED
D
EMOBOARD
STEPDOWN CONVERTER
STEP-DOWN CONVERTER -- Printed Demoboard
VOLTAGE INVERTING CONVERTER
VOLTAGE INVERTING CONVERTER -- Printed Demoboard
TEST CONDITIONS
RESULTS
Line Regulation
Vin = 4.5
6V;
I
O
= 100 mA
3 mV = 0.012%
Load Regulation
Vin = 5.0V;
I
O
= 10
100 mA
0.022 V = 0.09%
Output Ripple
Vin = 5.0V;
I
O
= 100 mA
500 mVpp
Short Circuit Current
Vin = 5.0V;
R
L
= 0.1
910 mA
Efficiency
Vin = 5.0V;
I
O
= 100 mA
62.2%
Output Ripple With
Optional Filter
Vin = 5.0V;
I
O
= 100 mA
70 mVpp
TEST CONDITIONS
RESULTS
Line Regulation
Vin = 15
25V;
I
O
= 500 mA
12 mV = 0.12%
Load Regulation
Vin = 25V;
I
O
= 50
500 mA
3.0 mV = 0.03%
Output Ripple
Vin = 25V;
I
O
= 500 mA
120 mVpp
Short Circuit Current
Vin = 25V;
R
L
= 0.1
1.1 A
Efficiency
Vin = 25V;
I
O
= 500 mA
83.7%
Output Ripple With
Optional Filter
Vin = 25V;
I
O
= 500 mA
40 mVpp
TYPICAL APPLICATION CIRCUIT
V
IN
= 12V
V
OUT
= 28V/175mA
R1 = 2.2 k
R2 = 47 k
R3 = 0.22
R4 = 180
C1 = 330 F
C2 = 100 F
C3 = 1.5
nF
C4 = 100 F
L1 = 170 H
L2 = 1 H
D1 = BYV10-40
1,25V
Reference
Regulator
3
4
6
7
Q1
S Q
R
5
8
Q2
Com parator
Ipk
C
T
OSCILLATOR
R2
V
IN
V
OUT
+
-
2
R3
R1
C2
C3
C1
D1
1
L1
L2
C4
Optional Filter
V
IN
= 25V
V
OUT
= 5V/500 mA
R1 = 1.2 k
R2 = 3.6 k
R3 = 0.33
C1 = 470 F
C2 = 100 F
C3 = 470 pF
C4 = 100 F
L1 = 220 H
L2 = 1 H
D1 = BYV10-40
1,25V
Reference
Regulator
3
4
6
7
Q1
S Q
R
5
8
Q2
Comparator
Ipk
C
T
OSCILLATOR
R1
V
IN
V
OUT
+
-
2
R3
R2
C2
C3
C1
D1
1
L1
L2
C4
Optional Filter
INVERTING
D1
C1
R1
C2
R2
R3
L1
MIK34063A
12
3
4
IC
C3
C2
L1
R4
R3
C3
C1
D1
R1
R2
12
3
4
MIK34063A
STEP-UP
IC
D1
STEP-DOWN
C1
R1
C2
R2
R3
L1
MIK34063A
12
3
4
IC
C3
V
IN
= contact 1 GND = contact 2,3 V
OUT
= contact 4
V
IN
= 4.5
6.0V
V
OUT
= -12V/100 mA
R1 = 953
R2 = 8.2 k
R3 = 0.24
C1 = 1000 F
C2 = 100 F
C3 = 1.5 nF
C4 = 100 F
L1 = 88 H
L2 = 1 H
D1 = BYV10-40
V
IN
= contact 1 GND = contact 2,3 V
OUT
= contact 4
V
IN
= contact 1 GND = contact 2,3 V
OUT
= contact 4
TEST
CONDITIONS
RESULTS
Line
Regulation
Vin
= 8.0
16 V;
I
O
= 175 mA
30
mV = 0.05%
Load
Regulation
Vin
= 12 V;
I
O
= 75
175 mA
10
mV = 0.017%
Output
Ripple
Vin
= 12 V;
I
O
= 175 mA
400
mVpp
Efficiency
Vin
= 12 V;
I
O
= 175 mA
87
.7%
Output
Ripple With
Optional
Filter
Vin
= 12 V;
I
O
= 175 mA
40
mVpp
7
MIK34063A DC-to-DC CONVERTER CONTROLLER
MI
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mikr
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STEP-UP with
EXTERNAL NPN SWITCH
STEP-UP with
EXTERNAL NPN SATURATED SWITCH (
see Note 5
)
STEP-DOWN with
EXTERNAL NPN SWITCH
STEP-DOWN with
EXTERNAL PNP SATURATED SWITCH
TYPICAL APPLICATION CIRCUIT
(CONTINUED)
V
IN
V
OUT
R
SC
6
7
5
8
3
4
2
1
+
-
V
IN
V
OUT
R
SC
6
7
5
8
3
4
2
1
+
-
R
V
IN
V
OUT
R
SC
6
7
5
8
3
2
1
+
-
4
V
IN
V
OUT
R
SC
6
7
5
8
3
2
1
+
-
4
8
DC-to-DC CONVERTER CONTROLLER MIK34063A
Design by Vladimir F.Lityaghin /e-mail: lityaghin@mail.ru /Tel: +7(095)532-64-54
MI
KRON
JS
C
h
ttp:
/
/www.
mikr
o
n
.
r
u
M
a
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h
2003
VOLTAGE INVERTING with
EXTERNAL NPN SWITCH
VOLTAGE INVERTING with
EXTERNAL PNP SATURATED SWITCH
DUAL OUTPUT VOLTAGE
HIGHER OUTPUT POWER,
HIGHER INPUT VOLTAGE
TYPICAL APPLICATION CIRCUIT
(CONTINUED)
V
IN
V
OUT
R
SC
6
7
5
8
3
2
1
+
-
4
V
IN
V
OUT
R
SC
6
7
8
3
2
1
+
-
4
5
V
IN
+12V
R
SC
6
7
5
8
3
2
1
+
-
4
--12V
GND
+ V
OUT
6
7
8
3
2
4
5
1
V
IN
R
SC
-
V
OUT
Isolated
from
input
+
-
9
MIK34063A DC-to-DC CONVERTER CONTROLLER
MI
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PHYSICAL DIMENSIONS
AND
MARKING DIAGRAMS
YY
-- Year
WW
-- Work Week
n
-- Assembly
Location
B
E
A
G
C
SEATING
PLANE
H
F
D
K
M
N
L
J
MILLIMETERS
INCHES
DIM
MIN
MAX
MIN
MAX
A
9,35
9,45
0,368
0,372
B
6.30
6.40
0,248
0,252
C
0,84
0,94
0,033
0,037
D
1.82
0,072
E
0,41
0,51
0,016
0,020
F
3,75
4,35
0,148
0,171
G
0,94
1,04
0,037
0,041
H
2,49
2,59
0,098
0,102
J
3.00
3.50
0,118
0,138
K
0.50
1.10
0,020
0,043
L
0.20
0.30
0,008
0,012
M
7.57
7.67
0,298
0,302
N
10
10
DIP-8
PACKAGE
DIP-8
MARKING DIAGRAM
1
4
5
8
MIK34063A
YYWW/n
A
B
C
D
E
F
G
H J K
L
M
SEATING PLANE
MILLIMETERS
INCHES
DIM
MIN
MAX
MIN
MAX
A
4.78
4.91
0.188
0.193
B
5.96
6.12
0.235
0.241
C
0.406
0.016
D
3.89
3.99
0.153
0.157
E
1.60
1.70
0.063
0.067
F
0.30
0.70
0.012
0.028
G
1.27
0.050
H
0.20
0.008
J
0.32
0.013
K
0.203
0.008
L
1.05
0.041
M
1
5
1
5
5
8
1
4
SOP-8
PACKAGE
SOP-8
MARKING DIAGRAM
YWW/n
MIK34063A
Y
-- Year
WW
-- Work Week
n
-- Assembly
Location
10
DC-to-DC CONVERTER CONTROLLER MIK34063A
Design by Vladimir F.Lityaghin /e-mail: lityaghin@mail.ru /Tel: +7(095)532-64-54
MI
KRON
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mikr
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ORDERING INFORMATION
NOTE: The form of packing is stipulated in the contract.
!
Address: 1
ST
Zapadny Proezd 12, Building 1, Zelenograd, Moscow, Russia, 124460
"
Telephone: +7 (095) 535-23-43; 536-85-44
#
Fax: +7 (095) 530-92-01
$
Email: export@mikron.ru
#
Tel/Fax: +86-755-329-7574
%
Voice: +86-755-329-7573
$
Email: miksz@963.net
MIKRON JSC Head Office
MIKRON ShenZhen Office
The information presented in this Data sheet is believed to be accurate and
reliable. Application circuits shown are typical examples illustrating the
operation of the device. MIKRON can assume no responsibility for use of any
application circuits.
In the interest of product improvement, MIKRON reserves the right to change
specifications and data without notice.
ORDERING NUMBER
PACKAGE
OPERATING
TEMPERATURE RANGE
SHIPPING
MIK34063AD
SOP-8 plastic
100 Units/Tube
MIK34063AP
DIP-8 plastic
0C 70C
50 Units/Tube
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