APW34063
1.5A, DC/DC Switching Regulators
Features
General Description
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The APW34063 is a monolithic control circuit containing
the primary functions required for DC-to-DC converters.
This device consists of an internal temperature
compensated reference, comparator, controlled duty
cycle oscillator with an active current limit circuit, driver
and high current output switch. This device was
specifically designed to be incorporated in Step-Down
and Step-Up and Voltage-Inverting applications with a
minimum number of external components.
Operation from 3.0V to 40V Input
Low Standby Current
Current Limiting
Output Switch Current to 1.5A
Output Voltage Adjustable
Frequency Operation to 100kHz
Precision 2% Reference
SOP-8 and PDIP-8 packages
Lead Free Available (RoHS Compliant)
Pin Description
Applications
•
Switch
Collector
Switch
Emitter
Timing
Capacitor
DC/DC Converters
GND
1
8
2
7
3
6
4
5
Driver
Collector
IPK
Sense
VCC
Comparator
Inverting
Input
Ordering and Marking Information
Package Code
J : PDIP - 8
K : SOP-8
Temp. Range
C : 0 to 70 ° C
Handling Code
TU : Tube
TR : Tape & Reel
Lead Free Code
L : Lead Free Device
Blank : Original Device
APW 34063
Lead Free Code
Handling Code
Temp. Range
Package Code
APW34063 J :
APW34063 K :
APW34063
XXXXX
XXXXX - Date Code
APW34063
XXXXX
XXXXX - Date Code
Note: ANPEC lead-free products contain molding compounds/die attach materials and 100% matte tin plate
termination finish; which are fully compliant with RoHS and compatible with both SnPb and lead-free soldiering
operations. ANPEC lead-free products meet or exceed the lead-free requirements of IPC/JEDEC J STD-020C
for MSL classification at lead-free peak reflow temperature.
ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise
customers to obtain the latest version of relevant information to verify before placing orders.
Copyright  ANPEC Electronics Corp.
Rev. A.4 - Sep., 2005
1
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APW34063
Block Diagram
Driver 8
Collector
1 Switch
Collector
S Q
Q2
R
Q1
IPK 7
Sense
100
2 Switch
Emitter
IPK
Oscillator
V CC
CT
6
3 Timing
Capacitor
Comparator
1.25V
Reference
Regulator
Comparator 5
Inverting
Input
4
Gnd
(Bottom View)
Absolute Maximum Ratings
Symbol
Parameter
VCC
Power Supply Voltage
VIR
Comparator Input Voltage Range
Value
Unit
40
Vdc
-0.3 to +40
Vdc
VC(Switch)
Switch Collector Voltage
40
Vdc
VE(Switch)
Switch Emitter Voltage (VPIN1=40V)
40
Vdc
VCE(Switch)
Switch Collector to Emitter Voltage
40
Vdc
Driver Collector Voltage
40
Vdc
100
mA
1.5
A
1.25
625
W
mW
VC(driver)
IC(driver)
ISW
Driver Collector Current
(Note1)
Switch Current
Power Dissipation
PD
PDIP-8
SOP-8
Note :
1. Maximum package power dissipation limits must be observed.
Copyright  ANPEC Electronics Corp.
Rev. A.4 - Sep., 2005
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APW34063
Absolute Maximum Ratings (Cont.)
Symbol
Parameter
TJ
Operating Junction Temperature
TA
Operating Ambient Temperature Range
TStg
Storage Temperature Range
Value
Unit
+150
°C
0 to +70
°C
-65 to +150
°C
Value
Unit
100
160
°C/W
Thermal Characteristics
Symbol
Parameter
Thermal Resistance − Junction to Ambient
PDIP-8
SOP-8
R θJA
Electrical Characteristics
VCC=5.0V, TA=Tlow to Thigh
Symbol
(Note2)
, unless otherwise specified.
Parameter
Test Conditions
APW34063
Min.
Typ.
Max.
Unit
Oscillator
FOSC
Ichg
Idischg
Idischg/Ichg
Vipk(sense)
Frequency
VPIN5 = 0V, CT = 1.0nF, TA = 25°C
24
33
42
kHz
Charge Current
VCC = 5.0V to 40V, TA = 25°C
24
35
42
µA
Discharge Current
VCC = 5.0V to 40V, TA = 25°C
Discharge to Charge Current
Pin7 to VCC, TA=25°C
Ratio
Current Limit Sense Voltage Ichg = Idischg, TA = 25°C
140
220
260
µA
5.2
6.5
7.5
250
300
350
1.0
1.3
0.45
0.7
Output Switch
hFE
Saturation Voltage, Darlington
ISW = 1.0A, Pins 1,8 connected
Connection
ISW = 1.0A, RPIN8 = 82Ω to VCC,
Saturation Voltage(Note4)
Forced β = 20
DC Current Gain
ISW = 1.0A, VCE = 5.0V, TA = 25°C
IC(off)
Collector Off-State Current
VCE(sat)
mV
(Note3)
V
50
VCE = 40V
75
0.01
100
1.25
1.275
µΑ
Comparator
VTH
Regline
IIB
Threshold Voltage
Threshold Voltage Line
Regulation
Input bias Current
TA = 25°C
1.225
TA = Tlow to Thigh
1.21
1.29
V
VCC = 3.0V to 40V
1.4
5.0
mV
VIN = 0V
-20
-400
nA
4.0
mA
Total Device
ICC
Supply Current
Copyright  ANPEC Electronics Corp.
Rev. A.4 - Sep., 2005
VCC=5.0V to 40V, CT=1.0nF,
Pin7= VCC, Vpin5> VIN, Pin2=Gnd,
remaining pins open
3
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APW34063
Electrical Characteristics (Cont.)
Note :
2.Tlow=0°CV, T high=+70°C
3.Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient
temperature as possible.
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 :
IC output
≥ 10
Forced β of output switch :
IC driver - 7.0mA*
* The 100Ω resistor in the emitter of the driver device requires about 7.0mA before the output switch conducts.
Typical Application Circuits
Step-Up Converter
170µ H
L
8
1
180
S Q
Q2
R
Q1
7
100
2
R SC
0.22
I PK
IN5819
CT
Oscillator
V IN
12V
6
3
CT
100
Comp.
1.25V
Reference
Regulator
1500pF
5
4
1.0µ H
R2
V OUT
28V/175mA
47k
R1
2.2k
330
CO
V OUT
100
optional
Filter
Copyright  ANPEC Electronics Corp.
Rev. A.4 - Sep., 2005
4
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APW34063
Typical Application Circuits (Cont.)
External Current Boost Connections for IC Peak Greater than 1.5A
R
8
VOUT
1
8
7
7
2
2
RSC
RSC
VIN
VOUT
1
VIN
6
6
R 0 for
constant VIN
External NPN Saturated Switch (see Note5)
External NPN Switch
Note :
5.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 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.
Step-Down Converter
8
1
S
Q
Q2
R
Q1
7
2
RSC
0.33
I PK
CT
Oscillator
V IN
25V
IN5819
6
3
100
Comp.
L
CT
1.25V
Reference
Regulator
220 µ H
470pF
5
4
1.0 µ H
R2
R1
1.2k
V OUT
5.0V/500mA
3.6k
470
CO
V OUT
100
optional Filter
Copyright  ANPEC Electronics Corp.
Rev. A.4 - Sep., 2005
5
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APW34063
Typical Application Circuits (Cont.)
External Current Boost Connections for IC Peak Greater than 1.5A
8
1
1
8
VOUT
7
7
2
2
VOUT
RSC
VIN
RSC
6
VIN
External NPN Switch
6
External PNP Saturated Switch
Voltage Inverting Converter
8
1
S Q
Q2
R
Q1
7
2
R SC
0.24
L
IPK
88 µ H
CT
Oscillator
V IN
4.5V~6.0V
6
V CC
3
100
Comp.
1.25V
Reference
Regulator
1500
pF
5
IN5819
4
1.0 µ H
R1
R2
8.2k
V OUT
-12V/100mA
953
1000 µ f
CO
V OUT
100
optional Filter
Copyright  ANPEC Electronics Corp.
Rev. A.4 - Sep., 2005
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APW34063
Typical Application Circuits (Cont.)
External Current Boost Connections for IC Peak Greater than 1.5A
8
1
1
8
VOUT
7
7
2
2
VOUT
RSC
VIN
VIN
6
6
External NPN Switch
External PNP Saturated Switch
Design Formula Table
Calculation
ton / toff
ton + t off
toff
ton
CT
Ipk(switch)
Rsc
L (min)
CO
Set-Up
Vout + V F - V in(min)
Vin(min) - Vsat
1
f
ton + toff
ton +1
toff
(ton + toff) - toff
4.0 x 10-5 ton
2Iout(max) ton +1
toff
0.3 / Ipk(switch)
Vin(min) - VSat
ton(max)
Ipk(switch)
Ioutton
9 Vripple(pp)
)
(
(
)
Copyright  ANPEC Electronics Corp.
Rev. A.4 - Sep., 2005
Step-Down
V out + VF
Vin(min) - Vsat - V out
1
f
ton + toff
ton +1
toff
(ton + toff ) - toff
4.0 x 10-5 ton
0.3 / Ipk(switch)
Vin(min) - VSat - Vout
ton(max)
I pk(switch)
Ipk(switch)(ton + toff)
8Vripple(pp)
)
7
)
(
2Iout(max)
(
Voltage-Inverting
Iv outI + VF
Vin - Vsat
1
f
ton + toff
ton +1
toff
(ton + toff) - t off
4.0 x 10 -5 ton
2Iout(max) ton +1
toff
0.3 / Ipk(switch)
V in(min) - V Sat
ton(max)
I pk(switch)
Ioutt on
9 Vripple(pp)
(
)
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APW34063
Design Formula Table (Cont.)
Vsat = Saturation voltage of the output switch.
VF = Forward voltage drop of the output rectifier.
The following power supply characteristics must be chosen :
Vin - Nominal input voltage.
 R2 
Vout - Desired output voltage, IVoutI = 1.25  1 +

 R1 
Iout - Desired output current.
f min - Minimum desired output switching frequency at the selected values of Vin and Io.
Vripple(pp) - 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.
Copyright  ANPEC Electronics Corp.
Rev. A.4 - Sep., 2005
8
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APW34063
Packaging Information
E
e1
0.015X45
SOP-8 pin ( Reference JEDEC Registration MS-012)
H
e2
D
A1
A
1
L
0.004max.
Dim
Millimeters
Inches
Min.
Max.
Min.
Max.
A
A1
1.35
0.10
1.75
0.25
0.053
0.004
0.069
0.010
D
E
4.80
3.80
5.00
4.00
0.189
0.150
0.197
0.157
H
L
5.80
0.40
6.20
1.27
0.228
0.016
0.244
0.050
e1
e2
0.33
0.51
0.013
0.020
φ1
0°
1.27BSC
Copyright  ANPEC Electronics Corp.
Rev. A.4 - Sep., 2005
0.50BSC
8°
9
0°
8°
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APW34063
Packaging Information
PDIP-8 pin ( Reference JEDEC Registration MS-001)
D
E1
E
1
A2
A
1
E3
A1
L
e2
e1
e3
Dim
A
A1
A2
D
e1
e2
e3
E
E1
E3
L
φ1
Millimeters
Min.
Max.
5.33
0.38
2.92
9.02
3.68
10.16
Min.
0.36
1.14
0.014
0.045
7.62 BSC
0.022
0.070
0.300 BSC
7.11
10.92
3.81
2.92
0.145
0.400
0.100 BSC
0.56
1.78
6.10
Max.
0.210
0.015
0.115
0.355
2.54 BSC
Copyright  ANPEC Electronics Corp.
Rev. A.4 - Sep., 2005
Inches
15° REF
0.240
0.280
0.430
0.150
0.115
15° REF
10
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APW34063
Physical Specifications
Terminal Material
Lead Solderability
Solder-Plated Copper (Solder Material : 90/10 or 63/37 SnPb), 100%Sn
Meets EIA Specification RSI86-91, ANSI/J-STD-002 Category 3.
Reflow Condition
(IR/Convection or VPR Reflow)
tp
TP
Critical Zone
T L to T P
Temperature
Ramp-up
TL
tL
Tsmax
Tsmin
Ramp-down
ts
Preheat
25
t 25 °C to Peak
Time
Classificatin Reflow Profiles
Profile Feature
Average ramp-up rate
(TL to TP)
Preheat
- Temperature Min (Tsmin)
- Temperature Max (Tsmax)
- Time (min to max) (ts)
Time maintained above:
- Temperature (T L)
- Time (tL)
Peak/Classificatioon Temperature (Tp)
Time within 5°C of actual
Peak Temperature (tp)
Ramp-down Rate
Sn-Pb Eutectic Assembly
Pb-Free Assembly
3°C/second max.
3°C/second max.
100°C
150°C
60-120 seconds
150°C
200°C
60-180 seconds
183°C
60-150 seconds
217°C
60-150 seconds
See table 1
See table 2
10-30 seconds
20-40 seconds
6°C/second max.
6°C/second max.
6 minutes max.
8 minutes max.
Time 25°C to Peak Temperature
Notes: All temperatures refer to topside of the package .Measured on the body surface.
Copyright  ANPEC Electronics Corp.
Rev. A.4 - Sep., 2005
11
(mm)
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APW34063
Classification Reflow Profiles(Cont.)
Table 1. SnPb Entectic Process – Package Peak Reflow Temperature s
Package Thickness
Volume mm 3
Volume mm 3
<350
≥350
<2.5 mm
240 +0/-5°C
225 +0/-5°C
≥2.5 mm
225 +0/-5°C
225 +0/-5°C
Table 2. Pb-free Process – Package Classification Reflow Temperatures
Package Thickness
Volume mm 3
Volume mm 3
Volume mm 3
<350
350-2000
>2000
<1.6 mm
260 +0°C*
260 +0°C*
260 +0°C*
1.6 mm – 2.5 mm
260 +0°C*
250 +0°C*
245 +0°C*
≥2.5 mm
250 +0°C*
245 +0°C*
245 +0°C*
*Tolerance: The device manufacturer/supplier shall assure process compatibility up to and
including the stated classification temperature (this means Peak reflow temperature +0°C.
For example 260°C+0°C) at the rated MSL level.
Reliability Test Program
Test item
SOLDERABILITY
HOLT
PCT
TST
ESD
Latch-Up
Method
MIL-STD-883D-2003
MIL-STD-883D-1005.7
JESD-22-B,A102
MIL-STD-883D-1011.9
MIL-STD-883D-3015.7
JESD 78
Description
245°C, 5 SEC
1000 Hrs Bias @125°C
168 Hrs, 100%RH, 121°C
-65°C~150°C, 200 Cycles
VHBM > 2KV, VMM > 200V
10ms, 1tr > 100mA
Carrier Tape & Reel Dimensions
t
D
P
Po
E
P1
Bo
F
W
Ko
Ao
Copyright  ANPEC Electronics Corp.
Rev. A.4 - Sep., 2005
D1
12
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APW34063
Carrier Tape & Reel Dimensions(Cont.)
T2
J
C
A
B
T1
Application
SOP- 8
A
B
330 ± 1
F
5.5± 1
J
T1
T2
W
P
E
62 +1.5
C
12.75+
0.15
2 ± 0.5
12.4 ± 0.2
2 ± 0.2
12± 0. 3
8± 0.1
1.75±0.1
D
D1
Po
P1
Ao
Bo
Ko
t
2.0 ± 0.1
6.4 ± 0.1
5.2± 0. 1
1.55 +0.1 1.55+ 0.25 4.0 ± 0.1
2.1± 0.1 0.3±0.013
(mm)
Cover Tape Dimensions
Application
SOP- 8
Carrier Width
12
Cover Tape Width
9.3
Devices Per Reel
2500
Customer Service
Anpec Electronics Corp.
Head Office :
No.6, Dusing 1st Road, SBIP,
Hsin-Chu, Taiwan, R.O.C.
Tel : 886-3-5642000
Fax : 886-3-5642050
Taipei Branch :
7F, No. 137, Lane 235, Pac Chiao Rd.,
Hsin Tien City, Taipei Hsien, Taiwan, R. O. C.
Tel : 886-2-89191368
Fax : 886-2-89191369
Copyright  ANPEC Electronics Corp.
Rev. A.4 - Sep., 2005
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