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AZ34063U Datasheet

Diodes Incorporated

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Datasheet

1.5A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER AZ34063U
1
Jan. 2013 Rev. 1. 3 BCD Semiconductor Manufacturing Limited
Data Sheet
General Description
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.
The AZ34063U is available in 2 packages: SOIC-8 and
DIP-8.
Features
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
·Battery Chargers
·ADSL Modems
·Hubs
·Negative Voltage Power Supplies
Figure 1. Package Types of AZ34063U
SOIC-8 DIP-8
1.5A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER AZ34063U
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Jan. 2013 Rev. 1. 3 BCD Semiconductor Manufacturing Limited
Data Sheet
Figure 2. Pin Configuration of AZ34063U (Top View)
M Package
(DIP-8)
Pin Configuration
Functional Block Diagram
Figure 3. Functional Block Diagram of AZ34063U
Switch
Timing
Switch
GND
IPK Sense
VCC
Comparator
Inverting Input
Collector
Capacitor
Emitter
Driver
Collector
Switch
Collector
Switch
Emitter
Timing
Capacitor
GND
Driver
Collector
IPK Sense
VCC
Comparator
Inverting
Input
+
-
Ipk
B
1.25V
Reference
Regulator
A
8
7
54
3
2
1
S
R
Q
6
IPK
CT
OSC
1
4
3
2
5
6
8
7
(SOIC-8)
P Package
Switch
Timing
Switch
GND
IPK Sense
VCC
Comparator
Inverting Input
Collector
Capacitor
Emitter
Driver
Collector
1
2
3
4
8
7
6
5
1
2
3
4
8
7
6
5
1.5A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER AZ34063U
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Jan. 2013 Rev. 1. 3 BCD Semiconductor Manufacturing Limited
Data Sheet
Package Temperature
Range Part Number Marking ID Packing
Type
SOIC-8 -40 to 85oC
AZ34063UM-G1 34063UM-G1 Tube
AZ34063UMTR-G1 34063UM-G1 Tape & Reel
DIP-8 -40 to 85oCAZ34063UP-G1 AZ34063UP-G1 Tube
Circuit Type
Package
M: SOIC-8
AZ34063U -
TR: Tape and Reel
Blank: Tube
P: DIP-8
Pin Number Pin Name Function
1 Switch Collector Internal switch transistor collector
2 Switch Emitter Internal switch transistor emitter
3 Timing Capacitor Timing Capacitor to control the switching frequency
4 GND Ground pin for all internal circuits
5 Comparator Inverting Input Inverting input pin for internal comparator
6V
CC Voltage supply
7IPK Sense
Peak Current Sense Input by monitoring the voltage drop
across an external current sense resistor to limit the peak cur-
rent through the switch
8 Driver Collector Voltage driver collector
Pin Description
Ordering Information
BCD Semiconductor's Pb-free products, as designated with "G1" suffix in the part number, are RoHS compliant and green.
G1: Green
1.5A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER AZ34063U
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Jan. 2013 Rev. 1. 3 BCD Semiconductor Manufacturing Limited
Data Sheet
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 Symbol Min Max Unit
Supply Voltage VCC 336V
Ambient Temperature TA-40 85 oC
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
Switch Current ISW 1.5 A
Power Dissipation (TA=25oC) DIP-8 PD
1.25 W
SOIC-8 780 mW
Thermal Resistance DIP-8 θJA
100 oC/W
SOIC-8 160
Operating Junction Temperature TJ150 oC
Lead Temperature (Soldering, 10s) TLEAD 260 oC
Storage Temperature Range TSTG -65 to 150 oC
ESD (Human body model) 2000 V
Absolute Maximum Ratings (Note 1)
1.5A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER AZ34063U
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Jan. 2013 Rev. 1. 3 BCD Semiconductor Manufacturing Limited
Data Sheet
(VCC=5.0V, TA=-40 to 85oC, unless otherwise specified.)
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 rec-
ommended:
Parameter Symbol Conditions Min Typ Max Unit
OSCILLATOR
Frequency fOSC
VPIN5=0V, CT=1.0nF
TA=25oC
30 38 45 KHz
Charge Current ICHG VCC=5.0V to 36V, TA=25oC30 38 45 μA
Discharge Current IDISCHG VCC=5.0V to 36V, TA=25oC180 240 290 μA
Discharge to Charge Current
Ratio IDISCHG/ICHG Pin 7 to VCC, TA=25oC5.2 6.5 7.5
Current Limit Sense Voltage VIPK(sense) ICHG=IDISCHG
, TA=25oC250 300 350 mV
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
DC Current Gain hFE
ISW=1.0A, VCE=5.0V,
TA=25oC
50 75
Collector Off-State Current IC(off) VCE=36V 0.01 100 μA
COMPARATOR
Threshold Voltage VTH
TA=25oC1.225 1.250 1.275
V
TA=-40 to 85oC1.21 1.250 1.29
Threshold Voltage Line
Regulation REGLINE VCC=3.0V to 36V 1.4 5 mV
Input Bias Current IIB VIN=0V -20 -400 nA
TOTAL DEVICE
Supply Current ICC
VCC=5.0V to 36V, CT=1.0nF,
VPIN7=VCC, VPIN5>VTH,
VPIN2=GND, other pins open
4mA
Electrical Characteristics
1.5A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER AZ34063U
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Jan. 2013 Rev. 1. 3 BCD Semiconductor Manufacturing Limited
Data Sheet
Figure 4. Output Switch On-Off Time vs. Figure 5. Timing Capacitor Waveform
Typical Performance Characteristics
Oscillator Timing Capacitor
IC output 10
Forced β of output switch:
* The 100Ω resistor in the emitter of the driver device requires about 7.0 mA before the output switch conducts.
ICdriver - 7.0mA*
Time 20μs/DIV
Pin 1,5,8=open
CT=1.0nF
TA=25oC
VCC=5.0V
VPIN7=VCC
VPIN2=GND
Figure 6. Oscillator Frequency vs.Timing Capacitor Figure 7. Standard Supply Current vs. Supply Voltage
Electrical Characteristics (Continued)
0 5 10 15 20 25 30 35 40
0.5
1.0
1.5
2.0
2.5
3.0
3.5
CT=1.0nF
VPIN7=VCC
VPIN2=GND
ICC Supply Current (mA)
VCC Supply Voltage (V)
0.1 1 10 100
1
10
100
1000
toff
ton
VCC=5.0V
VPIN7=VCC
VPIN5=GND
TA=25OC
Ton-off Output Switch On-Off Time (μs)
CT Oscillator Timing Capacitor (nF)
(VCC=5.0V, TA=25oC, unless otherwise specified.)
0.1 1 10 100
1
10
100
Oscillator Frequency (kHz)
CT Timing Capacitor (nF)
VCC=5.0V
VPIN7=VCC
VPIN5=GND
TA=25OC
VOSC Oscillator Voltage (V)
200mV/DIV
1.5A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER AZ34063U
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Jan. 2013 Rev. 1. 3 BCD Semiconductor Manufacturing Limited
Data Sheet
Figure 8. Emitter Follower Configuration Output Figure 9. Common Emitter Configuration Output Switch
Saturation Voltage vs. Emitter current Saturation Voltage vs. Collector Current
Figure 10. Current Limit Sense Voltage vs. Temperature
Typical Performance Characteristics (Continued)
-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
1.2
1.3
1.4
1.5
1.6
VCC=5.0V
VPIN1,7,8=VCC
VPIN3,5=GND
TA=25OC
Saturation Voltage (V)
Emitter Current (A)
0.00.20.40.60.81.01.21.41.6
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
Darlington Connection
Forced β=20 VCC=5.0V
VPIN7=VCC
VPIN2,3,5=GND
TA=25OC
Saturation Voltage (V)
Collector Current (A)
-60 -40 -20 0 20 40 60 80 100 120 140
240
250
260
270
280
290
300
Temperature (OC)
Current Limit Sense Voltage (mV)
Figure 11. Feedback Voltage vs. Temperature
(VCC=5.0V, TA=25oC, unless otherwise specified.)
1.5A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER AZ34063U
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Jan. 2013 Rev. 1. 3 BCD Semiconductor Manufacturing Limited
Data Sheet
(VCC=5.0V, TA=25oC, unless otherwise specified.)
Typical Performance Characteristics (Continued)
-40 0 40 80 120 160
60
80
100
120
140
Operation Frequency (kHz)
Temperature (oC)
VCC=5.0V
CT=330pF
Figure 12. Operation Frequency vs. Temperature
-40 0 40 80 120 160
0.8
1.0
1.2
1.4
Saturation Voltage (V)
Temperature (OC)
ISW =1.0A
VCC=5.0V
PIN1 PIN8 Connected
Figure 13. Saturation Voltage vs. Temperature
1.5A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER AZ34063U
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Jan. 2013 Rev. 1. 3 BCD Semiconductor Manufacturing Limited
Data Sheet
Typical Applications
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).
+
-
Ipk
B
1.25V
Reference
Regulator
A
5
S
R
Q
IPK
CT
OSC
VIN 12V
C1
100μF
R3 180
CT
470pF
L1 150μH
D1
1N5819
L2 1.0 μΗ
C3
100 μF
Optional
Filter
VOUT
+
+
U1 AZ34063U
R1 47k
R2
2.2k
C2
330 μF
28V/175mA
+
Rsc
0.22
6
7
81
2
3
4
VOUT
1.5A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER AZ34063U
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Jan. 2013 Rev. 1. 3 BCD Semiconductor Manufacturing Limited
Data Sheet
Figure 15. Step-Down converter (Note 6)
Typical Applications (Continued)
+
-
Ipk
B
1.25V
Reference
Regulator
A
1
S
R
Q
IPK
CT
OSC
VIN 25V
C1
100μF
Rsc
0.33
L2 1.0 μH
C3
100 μF
Optional
Filter
5V/500mA
VOUT
D1
1N5819
L1
220 μH
CT
470 pF
+
+
R1 3.6k
R2
1.2k
C2
470 μF
+
U1 AZ34063U
2
3
4
5
6
7
8
VOUT
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).
1.5A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER AZ34063U
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Jan. 2013 Rev. 1. 3 BCD Semiconductor Manufacturing Limited
Data Sheet
Figure 16. Voltage Inverting Converter (Note 7)
Typical Applications (Continued)
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).
+
-
Ipk
B
1.25V
Reference
Regulator
A
8
S
R
Q
IPK
CT
OSC
VIN
4.5-6V
C1
100 μF
Rsc
0.24
L2 1.0 μΗ
Optional
Filter
VOUT
D1
1N5819
L1
88 μΗ
+
C3
100 μF
+
CT
470pF
R1 953
R2
8.2k
C2
1000 μF
-12V/100mA
+
U1 AZ34063U
7
6
54
3
2
1
VOUT
1.5A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER AZ34063U
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Jan. 2013 Rev. 1. 3 BCD Semiconductor Manufacturing Limited
Data Sheet
Mechanical Dimensions
SOIC-8 Unit: mm(inch)
0°
8°
1°
5°
R0.150(0.006)
R0.150(0.006)
1.000(0.039)
0.330(0.013)
0.510(0.020)
1.350(0.053)
1.750(0.069)
0.100(0.004)
0.300(0.012)
0.900(0.035)
0.800(0.031)
0.200(0.008)
3.800(0.150)
4.000(0.157)
7°
7°
20:1
D
1.270(0.050)
TYP
0.190(0.007)
0.250(0.010)
8°
D
5.800(0.228)
6.200(0.244)
0.675(0.027)
0.725(0.029)
0.320(0.013)
8°
0.450(0.017)
0.800(0.031)
4.700(0.185)
5.100(0.201)
Note: Eject hole, oriented hole and mold mark is optional.
1.5A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER AZ34063U
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Jan. 2013 Rev. 1. 3 BCD Semiconductor Manufacturing Limited
Data Sheet
Mechanical Dimensions (continued)
DIP-8 Unit: mm(inch)
4°
6°
R0.750(0.030)
0.254(0.010)TYP
0.130(0.005)MIN
8.200(0.323)
9.400(0.370)
0.204(0.008)
0.360(0.014)
7.620(0.300)TYP
4°
6°
5°
0.700(0.028)
9.000(0.354)
9.600(0.378)
3.710(0.146)
4.310(0.170)
3.000(0.118)
3.600(0.142)
0.360(0.014)
0.560(0.022)
2.540(0.100) TYP
6.200(0.244)
6.600(0.260)
3.200(0.126)
3.600(0.142)
0.510(0.020)MIN
Φ3.000(0.118)
Depth
0.100(0.004)
0.200(0.008)
1.524(0.060) TYP
Note: Eject hole, oriented hole and mold mark is optional.
IMPORTANT NOTICE
BCD Semiconductor Manufacturing Limited reserves the right to make changes without further notice to any products or specifi-
cations herein. BCD Semiconductor Manufacturing Limited does not assume any responsibility for use of any its products for any
particular purpose, nor does BCD Semiconductor Manufacturing Limited assume any liability arising out of the application or use
of any its products or circuits. BCD Semiconductor Manufacturing Limited does not convey any license under its patent rights or
other rights nor the rights of others.
- Wafer Fab
Shanghai SIM-BCD Semiconductor Manufacturing Limited
800, Yi Shan Road, Shanghai 200233, China
Tel: +86-21-6485 1491, Fax: +86-21-5450 0008
BCD Semiconductor Manufacturing Limited
MAIN SITE
REGIONAL SALES OFFICE
Shenzhen Office
Shanghai SIM-BCD Semiconductor Manufacturing Co., Ltd. Shenzhen Office
Advanced Analog Circuits (Shanghai) Corporation Shenzhen Office
Room E, 5F, Noble Center, No.1006, 3rd Fuzhong Road, Futian District, Shenzhen 518026, China
Tel: +86-755-8826 7951
Fax: +86-755-8826 7865
Taiwan Office
BCD Semiconductor (Taiwan) Company Limited
4F, 298-1, Rui Guang Road, Nei-Hu District, Taipei,
Taiwan
Tel: +886-2-2656 2808
Fax: +886-2-2656 2806
USA Office
BCD Semiconductor Corporation
30920 Huntwood Ave. Hayward,
CA 94544, U.S.A
Tel : +1-510-324-2988
Fax: +1-510-324-2788
- IC Design Group
Advanced Analog Circuits (Shanghai) Corporation
8F, Zone B, 900, Yi Shan Road, Shanghai 200233, China
Tel: +86-21-6495 9539, Fax: +86-21-6485 9673
BCD Semiconductor Manufacturing Limited
http://www.bcdsemi.com
BCD Semiconductor Manufacturing Limited
IMPORTANT NOTICE
BCD Semiconductor Manufacturing Limited reserves the right to make changes without further notice to any products or specifi-
cations herein. BCD Semiconductor Manufacturing Limited does not assume any responsibility for use of any its products for any
particular purpose, nor does BCD Semiconductor Manufacturing Limited assume any liability arising out of the application or use
of any its products or circuits. BCD Semiconductor Manufacturing Limited does not convey any license under its patent rights or
other rights nor the rights of others.
- Wafer Fab
Shanghai SIM-BCD Semiconductor Manufacturing Co., Ltd.
800 Yi Shan Road, Shanghai 200233, China
Tel: +86-21-6485 1491, Fax: +86-21-5450 0008
MAIN SITE
REGIONAL SALES OFFICE
Shenzhen Office
Shanghai SIM-BCD Semiconductor Manufacturing Co., Ltd., Shenzhen Office
Unit A Room 1203, Skyworth Bldg., Gaoxin Ave.1.S., Nanshan District, Shenzhen,
China
Tel: +86-755-8826 7951
Fax: +86-755-8826 7865
Taiwan Office
BCD Semiconductor (Taiwan) Company Limited
4F, 298-1, Rui Guang Road, Nei-Hu District, Taipei,
Taiwan
Tel: +886-2-2656 2808
Fax: +886-2-2656 2806
USA Office
BCD Semiconductor Corp.
30920 Huntwood Ave. Hayward,
CA 94544, USA
Tel : +1-510-324-2988
Fax: +1-510-324-2788
- Headquarters
BCD Semiconductor Manufacturing Limited
No. 1600, Zi Xing Road, Shanghai ZiZhu Science-based Industrial Park, 200241, China
Tel: +86-21-24162266, Fax: +86-21-24162277

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