BCD AZ34063UMTR-G1 1.5a step-down/step-up/inverting dc-dc converter Datasheet

Data Sheet
1.5A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER
General Description
Features
The AZ34063U is a monolithic switching regulator
control circuit which contains the primary functions
required for DC-DC converters. This device consists
of internal temperature compensated reference, voltage
comparator, controlled duty cycle oscillator with active
current limit circuit, driver and high current output
switch.
•
•
•
•
•
•
•
The AZ34063U is specifically designed as a general
DC-DC converter to be used in Step-Down, Step-Up
and Voltage-Inverting applications with a minimum
number of external components.
AZ34063U
Operation from 3.0V to 36V Input
Low Standby Current
Current Limiting
Output Switch Current to 1.5A
Output Voltage Adjustable
Operation Frequency up to 180kHz
Precision 2% Reference
Applications
·
·
·
·
The AZ34063U is available in 2 packages: SOIC-8 and
DIP-8.
SOIC-8
Battery Chargers
ADSL Modems
Hubs
Negative Voltage Power Supplies
DIP-8
Figure 1. Package Types of AZ34063U
Jan. 2013 Rev. 1. 3
BCD Semiconductor Manufacturing Limited
1
Data Sheet
1.5A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER
AZ34063U
Pin Configuration
P Package
(DIP-8)
M Package
(SOIC-8)
Switch
Collector
Switch
Emitter
Timing
Capacitor
GND
Switch
Collector
Switch
Emitter
Timing
Capacitor
1
1
8
8
Driver
Collector
2
2
7
7
IPK Sense
3
3
6
6
VCC
4
4
5
5
Comparator
Inverting Input
GND
1
8
Driver
Collector
2
7
IPK Sense
3
6
VCC
4
5
Comparator
Inverting Input
Figure 2. Pin Configuration of AZ34063U (Top View)
Functional Block Diagram
Driver
Collector
1
8
B
S
A
Switch
Collector
Q
R
IPK Sense
7
2
Ipk
IPK
CT
OSC
VCC
6
3
Timing
Capacitor
4
GND
1.25V
Reference
Regulator
+
-
Comparator
Inverting
Input
Switch
Emitter
5
Figure 3. Functional Block Diagram of AZ34063U
Jan. 2013 Rev. 1. 3
BCD Semiconductor Manufacturing Limited
2
Data Sheet
1.5A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER
AZ34063U
Pin Description
Pin Number
Pin Name
Function
1
Switch Collector
2
Switch Emitter
3
Timing Capacitor
4
GND
5
Comparator Inverting Input
6
VCC
7
IPK Sense
8
Driver Collector
Internal switch transistor collector
Internal switch transistor emitter
Timing Capacitor to control the switching frequency
Ground pin for all internal circuits
Inverting input pin for internal comparator
Voltage supply
Peak Current Sense Input by monitoring the voltage drop
across an external current sense resistor to limit the peak current through the switch
Voltage driver collector
Ordering Information
AZ34063U
-
Circuit Type
G1: Green
Package
M: SOIC-8
P: DIP-8
TR: Tape and Reel
Blank: Tube
Package
Temperature
Range
SOIC-8
-40 to 85oC
DIP-8
-40 to 85oC
Part Number
Marking ID
Packing
Type
AZ34063UM-G1
34063UM-G1
Tube
AZ34063UMTR-G1
34063UM-G1
Tape & Reel
AZ34063UP-G1
AZ34063UP-G1
Tube
BCD Semiconductor's Pb-free products, as designated with "G1" suffix in the part number, are RoHS compliant and green.
Jan. 2013 Rev. 1. 3
BCD Semiconductor Manufacturing Limited
3
Data Sheet
1.5A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER
AZ34063U
Absolute Maximum Ratings (Note 1)
Parameter
Symbol
Value
Unit
Power Supply Voltage
VCC
40
V
Comparator Input Voltage Range
VIR
-0.3 to 40
V
Switch Collector Voltage
VC(switch)
40
V
Switch Emitter Voltage (VPIN 1=40V)
VE(switch)
40
V
Switch Collector to Emitter Voltage
VCE(switch)
40
V
Driver Collector Voltage
VC(driver)
40
V
Driver Collector Current (Note 2)
IC(driver)
100
mA
ISW
1.5
A
1.25
W
780
mW
Switch Current
Power Dissipation (TA=25oC)
Thermal Resistance
DIP-8
PD
SOIC-8
DIP-8
100
θJA
SOIC-8
Operating Junction Temperature
Lead Temperature (Soldering, 10s)
Storage Temperature Range
160
o
C/W
TJ
150
o
TLEAD
260
o
TSTG
-65 to 150
o
ESD (Human body model)
2000
C
C
C
V
Note 1: Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to the device.
These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated
under "Recommended Operating Conditions" is not implied. Exposure to "Absolute Maximum Ratings" for extended periods
may affect device reliability.
Note 2: Maximum package power dissipation limits must be observed.
Recommended Operating Conditions
Parameter
Supply Voltage
Ambient Temperature
Symbol
Min
Max
Unit
VCC
3
36
V
TA
-40
85
o
Jan. 2013 Rev. 1. 3
C
BCD Semiconductor Manufacturing Limited
4
Data Sheet
1.5A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER
AZ34063U
Electrical Characteristics
(VCC=5.0V, TA=-40 to 85oC, unless otherwise specified.)
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
30
38
45
KHz
OSCILLATOR
VPIN5=0V, CT=1.0nF
Frequency
fOSC
Charge Current
ICHG
VCC=5.0V to 36V, TA=25oC
30
38
45
μA
IDISCHG
VCC=5.0V to 36V, TA=25oC
180
240
290
μA
Discharge to Charge Current
IDISCHG/ICHG Pin 7 to VCC, TA=25oC
Ratio
5.2
6.5
7.5
Current Limit Sense Voltage
250
300
350
mV
Discharge Current
VIPK(sense)
TA=25oC
ICHG=IDISCHG, TA=25oC
OUTPUT SWITCH (Note 3)
Saturation Voltage,
Dalington Connection
VCE(sat)
ISW=1.0A, Pins 1, 8 connected,
Common Emitter
1.0
1.3
V
Saturation Voltage (Note 4.)
VCE(sat)
ISW=1.0A, RPIN8=82Ω to VCC,
Forced β=20, Common Emitter
0.45
0.7
V
100
μA
DC Current Gain
Collector Off-State Current
hFE
IC(off)
ISW=1.0A, VCE=5.0V,
TA=25oC
50
75
VCE=36V
0.01
TA=25oC
1.225 1.250 1.275
TA=-40 to 85oC
1.21
COMPARATOR
Threshold Voltage
Threshold Voltage Line
Regulation
Input Bias Current
VTH
V
1.250
1.29
VCC=3.0V to 36V
1.4
5
mV
IIB
VIN=0V
-20
-400
nA
ICC
VCC=5.0V to 36V, CT=1.0nF,
VPIN7=VCC, VPIN5>VTH,
VPIN2=GND, other pins open
4
mA
REGLINE
TOTAL DEVICE
Supply Current
Note 3: Low duty cycle pulse technique are used during test to maintain junction temperature as close to ambient temperature
as possible.
Note 4: If the output switch is driven into hard saturation (non-Darlington configuration) at low switch currents (≤300mA) and
high driver currents (≥30mA), it may take up to 2.0μs for it to come out of saturation. This condition will shorten the off time
at frequencies 30KHz, 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:
Jan. 2013 Rev. 1. 3
BCD Semiconductor Manufacturing Limited
5
Data Sheet
1.5A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER
AZ34063U
Electrical Characteristics (Continued)
Forced β of output switch:
IC output
≥ 10
ICdriver - 7.0mA*
* The 100Ω resistor in the emitter of the driver device requires about 7.0 mA before the output switch conducts.
Typical Performance Characteristics
1000
VCC=5.0V
VPIN7=VCC
VOSC Oscillator Voltage (V)
200mV/DIV
Ton-off Output Switch On-Off Time (μs)
(VCC=5.0V, TA=25oC, unless otherwise specified.)
ton
VPIN5=GND
O
TA=25 C
100
toff
10
VCC=5.0V
VPIN7=VCC
VPIN2=GND
1
0.1
1
10
Pin 1,5,8=open
CT=1.0nF
TA=25oC
100
Time 20μs/DIV
CT Oscillator Timing Capacitor (nF)
Figure 5. Timing Capacitor Waveform
Figure 4. Output Switch On-Off Time vs.
Oscillator Timing Capacitor
3.5
VCC=5.0V
VPIN7=VCC
3.0
VPIN5=GND
ICC Supply Current (mA)
Oscillator Frequency (kHz)
100
O
TA=25 C
10
1
2.5
2.0
CT=1.0nF
1.5
VPIN7=VCC
VPIN2=GND
1.0
0.5
0.1
1
10
100
0
5
10
15
20
25
30
35
40
VCC Supply Voltage (V)
CT Timing Capacitor (nF)
Figure 6. Oscillator Frequency vs.Timing Capacitor
Jan. 2013 Rev. 1. 3
Figure 7. Standard Supply Current vs. Supply Voltage
BCD Semiconductor Manufacturing Limited
6
Data Sheet
1.5A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER
AZ34063U
Typical Performance Characteristics (Continued)
(VCC=5.0V, TA=25oC, unless otherwise specified.)
1.4
1.2
Saturation Voltage (V)
Saturation Voltage (V)
1.6
1.5
1.4
VCC=5.0V
VPIN1,7,8=VCC
VPIN3,5=GND
1.3
Darlington Connection
0.8
0.6
Forced β=20
VCC=5.0V
VPIN7=VCC
VPIN2,3,5=GND
0.4
0.2
O
TA=25 C
1.2
1.0
O
TA=25 C
0.0
0.0
-0.1 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
Collector Current (A)
Emitter Current (A)
Figure 9. Common Emitter Configuration Output Switch
Figure 8. Emitter Follower Configuration Output
Saturation Voltage vs. Collector Current
Saturation Voltage vs. Emitter current
300
Feedback Voltage (V)
Current Limit Sense Voltage (mV)
1.256
290
280
270
260
1.248
1.240
1.232
250
1.224
240
-60
-40
-20
0
20
40
60
80
100
120
-40
140
0
40
80
120
160
O
Temperature ( C)
Temperature ( C)
Figure 10. Current Limit Sense Voltage vs. Temperature
Figure 11. Feedback Voltage vs. Temperature
O
Jan. 2013 Rev. 1. 3
BCD Semiconductor Manufacturing Limited
7
Data Sheet
1.5A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER
AZ34063U
Typical Performance Characteristics (Continued)
(VCC=5.0V, TA=25oC, unless otherwise specified.)
1.4
120
Saturation Voltage (V)
Operation Frequency (kHz)
140
100
80
0
40
80
120
VCC=5.0V
0.8
CT=330pF
-40
1.0
ISW =1.0A
VCC=5.0V
60
1.2
PIN1 PIN8 Connected
-40
160
0
40
80
120
160
O
o
Temperature ( C)
Temperature ( C)
Figure 13. Saturation Voltage vs. Temperature
Figure 12. Operation Frequency vs. Temperature
Jan. 2013 Rev. 1. 3
BCD Semiconductor Manufacturing Limited
8
Data Sheet
1.5A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER
AZ34063U
Typical Applications
L1 150μH
R3 180
8
1
B
S
A
Q
R
7
Ipk
IPK
Rsc
0.22
VIN 12V
2
OSC
D1
1N5819
CT
6
+
C1
100μF
3
CT
470pF
1.25V
Reference
Regulator
+
-
5
4
L2 1.0 μΗ
U1 AZ34063U
VOUT
VOUT
R2
2.2k
28V/175mA
R1 47k
+
C2
330 μF
+
Optional
Filter
C3
100 μF
Figure 14. Step-Up Converter (Note 5)
Note 5: This is a typical step-up converter configuration. In the steady state, if the resistor divider voltage at pin
5 is greater than the voltage in the non-inverting input, which is 1.25V determined by the internal reference, the
output of the comparator will go low. At the next swithching period, the output switch will not conduct and the
output voltage will eventually drop below its nominal voltage until the divider voltage at pin 5 is lower than 1.25V.
Then the output of the comparator will go high, the output switch will be allowed to conduct. Since VPIN5=VOUT*
R2/(R1+R2)=1.25(V), the output voltage can be decided by VOUT=1.25 * (R1+R2)/R2 (V).
Jan. 2013 Rev. 1. 3
BCD Semiconductor Manufacturing Limited
9
Data Sheet
1.5A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER
AZ34063U
Typical Applications (Continued)
1
8
B
S
A
Q
R
2
7
Ipk
IPK
Rsc
0.33
VIN 25V
OSC
D1
1N5819
CT
6
+
C1
100μF
L1
220 μH
3
CT
470 pF
1.25V
Reference
Regulator
+
-
4
5
L2 1.0 μH
U1 AZ34063U
VOUT
VOUT
R1 3.6k
+
R2
1.2k
5V/500mA
C2
470 μF
+
Optional
Filter
C3
100 μF
Figure 15. Step-Down converter (Note 6)
Note 6: This is a typical step-down converter configuration. The working process in the steady state is similar to
step-up converter, VPIN5=VOUT*R2/(R1+R2)=1.25 (V), the output voltage can be decided by VOUT=1.25*
(R1+R2)/R2 (V).
Jan. 2013 Rev. 1. 3
BCD Semiconductor Manufacturing Limited
10
Data Sheet
1.5A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER
AZ34063U
Typical Applications (Continued)
1
8
B
S
A
Q
R
7
Rsc
0.24
2
Ipk
IPK
OSC
L1
88 μΗ
CT
6
VIN
4.5-6V
+
C1
100 μF
3
1.25V
Reference
Regulator
+
-
CT
470pF
5
D1
1N5819
4
U1 AZ34063U
L2 1.0 μΗ
VOUT
VOUT
-12V/100mA
C2
1000 μF
Optional
Filter
+
R1 953
R2
8.2k
C3
100 μF
+
Figure 16. Voltage Inverting Converter (Note 7)
Note 7: This is a typical inverting converter configuration. The working process in the steady state is similar to
step-up converter, the difference in this situation is that the voltage at the non-inverting pin of the comparator is
equal to 1.25V+VOUT, then VPIN5=VOUT*R2/(R1+R2)=1.25V+VOUT, so the output voltage can be decided by
VOUT=-1.25*(R1+R2)/R1 (V).
Jan. 2013 Rev. 1. 3
BCD Semiconductor Manufacturing Limited
11
Data Sheet
1.5A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER
AZ34063U
Mechanical Dimensions
SOIC-8
4.700(0.185)
5.100(0.201)
7°
Unit: mm(inch)
0.320(0.013)
1.350(0.053)
1.750(0.069)
8°
8°
7°
0.675(0.027)
0.725(0.029)
D
5.800(0.228)
1.270(0.050)
6.200(0.244)
TYP
D
20:1
0.300(0.012)
R0.150(0.006)
0.100(0.004)
0.800(0.031)
0.200(0.008)
0°
8°
1.000(0.039)
3.800(0.150)
4.000(0.157)
0.330(0.013)
0.510(0.020)
0.190(0.007)
0.250(0.010)
0.900(0.035)
1°
5°
R0.150(0.006)
0.450(0.017)
0.800(0.031)
Note: Eject hole, oriented hole and mold mark is optional.
Jan. 2013 Rev. 1. 3
BCD Semiconductor Manufacturing Limited
12
Data Sheet
1.5A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER
AZ34063U
Mechanical Dimensions (continued)
DIP-8
Unit: mm(inch)
0.700(0.028)
7.620(0.300)TYP
1.524(0.060) TYP
6°
3.200(0.126)
3.600(0.142)
3.710(0.146)
4.310(0.170) 4°
4°
0.510(0.020)MIN
3.000(0.118)
3.600(0.142)
0.204(0.008)
0.360(0.014)
8.200(0.323)
9.400(0.370)
0.254(0.010)TYP
0.360(0.014)
0.560(0.022)
5°
6°
2.540(0.100) TYP
0.130(0.005)MIN
6.200(0.244)
6.600(0.260)
R0.750(0.030)
Φ3.000(0.118)
Depth
0.100(0.004)
0.200(0.008)
9.000(0.354)
9.600(0.378)
Note: Eject hole, oriented hole and mold mark is optional.
Jan. 2013 Rev. 1. 3
BCD Semiconductor Manufacturing Limited
13
BCD Semiconductor Manufacturing Limited
http://www.bcdsemi.com
IMPORTANT NOTICE
IMPORTANT
NOTICE
BCD Semiconductor
BCD
Semiconductor Manufacturing
Manufacturing Limited
Limited reserves
reserves the
the right
right to
to make
make changes
changes without
without further
further notice
notice to
to any
any products
products or
or specifispecifications herein.
cations
herein. BCD
BCD Semiconductor
Semiconductor Manufacturing
Manufacturing Limited
Limited does
does not
not assume
assume any
any responsibility
responsibility for
for use
use of
of any
any its
its products
products for
for any
any
particular purpose,
particular
purpose, nor
nor does
does BCD
BCD Semiconductor
Semiconductor Manufacturing
Manufacturing Limited
Limited assume
assume any
any liability
liability arising
arising out
out of
of the
the application
application or
or use
use
of any
of
any its
its products
products or
or circuits.
circuits. BCD
BCD Semiconductor
Semiconductor Manufacturing
Manufacturing Limited
Limited does
does not
not convey
convey any
any license
license under
under its
its patent
patent rights
rights or
or
other rights
other
rights nor
nor the
the rights
rights of
of others.
others.
MAIN SITE
SITE
MAIN
- Headquarters
BCD
Semiconductor Manufacturing Limited
BCD
Semiconductor
Manufacturing Limited
- Wafer
Fab
No.
1600, Zi
Xing Road,
Shanghai ZiZhu
Science-basedLimited
Industrial Park, 200241, China
Shanghai
SIM-BCD
Semiconductor
Manufacturing
Tel:
Fax: +86-21-24162277
800,+86-21-24162266,
Yi Shan Road, Shanghai
200233, China
Tel: +86-21-6485 1491, Fax: +86-21-5450 0008
REGIONAL SALES OFFICE
Shenzhen OfficeSALES OFFICE
REGIONAL
- Wafer
FabSemiconductor Manufacturing Limited
BCD
Shanghai
SIM-BCD
Semiconductor Manufacturing Co., Ltd.
- IC Design
Group
800 Yi
Shan Road,
Shanghai
200233,
China Corporation
Advanced
Analog
Circuits
(Shanghai)
Tel: +86-21-6485
1491,YiFax:
0008200233, China
8F, Zone B, 900,
Shan+86-21-5450
Road, Shanghai
Tel: +86-21-6495 9539, Fax: +86-21-6485 9673
Taiwan Office
Shanghai
Semiconductor Manufacturing Co., Ltd., Shenzhen Office
BCD Taiwan
Semiconductor
Shenzhen SIM-BCD
Office
Office (Taiwan) Company Limited
Unit
A Room
1203, Skyworth
Bldg., Gaoxin
Ave.1.S., Nanshan
Shenzhen,
4F, 298-1,
Guang Road,(Taiwan)
Nei-Hu District,
Taipei,
Shanghai
SIM-BCD
Semiconductor
Manufacturing
Co., Ltd.District,
Shenzhen
Office
BCDRui
Semiconductor
Company
Limited
China
Taiwan
Advanced Analog Circuits (Shanghai) Corporation Shenzhen Office
4F, 298-1, Rui Guang Road, Nei-Hu District, Taipei,
Tel:
+86-755-8826
Tel: +886-2-2656
2808
Room
E, 5F, Noble 7951
Center, No.1006, 3rd Fuzhong Road, Futian District, Shenzhen 518026, China
Taiwan
Fax:
+86-755-88267951
7865
Fax: +886-2-2656
28062808
Tel: +86-755-8826
Tel: +886-2-2656
Fax: +86-755-8826 7865
Fax: +886-2-2656 2806
USA Office
BCD Office
Semiconductor Corp.
USA
30920Semiconductor
Huntwood Ave.Corporation
Hayward,
BCD
CA 94544,
USA Ave. Hayward,
30920
Huntwood
Tel :94544,
+1-510-324-2988
CA
U.S.A
Fax:: +1-510-324-2988
+1-510-324-2788
Tel
Fax: +1-510-324-2788
Similar pages