Download AP34063 Description Pin Assignments

AP34063
UNIVERSAL DC/DC CONVERTER
Description
Pin Assignments
The AP34063 Series is a monolithic control circuit containing the
SO-8
primary functions required for DC-to-DC converters. These devices
consist
of
an
internal
temperature
compensated
( Top View )
reference,
comparator, controlled duty cycle oscillator with an active current limit
Switch
Collector
1
8
Driver
circuit, driver and high current output switch. This series is specifically
Switch
Emitter
2
7
I pk
Sense
Timing
Capacitor
3
6
V CC
Collector
4
5
Comparator
Inverting
Input
designed for incorporating in Step-Down and Step-Up and VoltageInverting
applications
with
a
minimum
number
of
external
components.
Gnd
PDIP-8
Features
•
Operation from 3.0V to 40V Input
•
Low Standby Current
•
Current Limiting
•
Output Switch Current to 1.6A
•
Output Voltage Adjustable
•
Frequency Operation to 100 kHz
•
Precision 2% Reference
•
•
( Top View )
Switch
Collector
1
8
Driver
Switch
Emitter
2
7
I pk
Sense
Timing
Capacitor
3
6
V CC
Collector
4
5
Comparator
Inverting
Input
Gnd
SO-8 package
ƒ
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
ƒ
Halogen and Antimony Free. “Green” Device (Note 3)
PDIP-8 and SO-8 package
ƒ
Notes:
Totally Lead-Free; RoHS Compliant (Notes 1 & 2)
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
AP34063
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AP34063
Typical Applications Circuit
(1)
Step-Up Converter
120uH
L
8
1
180
S Q
Q2
R
Q1
7
2
B240
Ipk
CT
Rsc
0.24
Vin
12V
Osc
3
6
V CC
+
470
uF
CT
+
_
Comp.
1.25V
Ref
Reg
680
pF
5
4
V out
28V/200mA
R2
10k 56k
R1
470uF
+
1.0uH
V out
+
CO
100
Optional Filter
Test
Conditions
Results
Line Regulation
VIN = 9V to 12V, IO = 200mA
20mV = ±0.035%
Load Regulation
VIN = 12V, IO = 50mA to 200mA
15mV = ±0.035%
Output Ripple
VIN = 12V, IO = 200mA
500mVPP
Efficiency
VIN = 12V, IO = 200mA
80%
AP34063
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AP34063
Typical Applications Circuit (cont.)
(2)
Step-Down Converter
8
1
S Q
Q2
R
Q1
7
2
Ipk
CT
Rsc
0.11
B240
Osc
6
Vin
25V
3
VC
CT L
C
470
uF
+
+
_
Comp.
1.25V
Ref
Reg
5
100uH
470
pF
4
Vout
5.0V/500mA
R2
R1
25k
36k
470uF
+
CO
1.0uH
Vout
+
100
Optional Filter
Test
Line Regulation
VIN = 12V to 24V, IO = 500mA
Load Regulation
VIN = 24V, IO = 50mA to 500mA
5mV = ±0.05%
Output Ripple
VIN = 24V, IO = 500mA
Efficiency
VIN = 24V, IO = 500mA
160mVPP
82%
AP34063
Conditions
Results
20mV = ±0.2%
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AP34063
Typical Applications Circuit (cont.)
(3)
Voltage Inverting Converter
8
1
S Q
Q2
R
Q1
7
2
Ipk
L
CT
Rsc
0.26
100
uH
Osc
3
6
Vin
4.5V to 6.0V
VC
C
+
+
+
_
470uF
Comp.
1.25V
Ref
Reg
5
680
pF
B240
4
Vout
-12V/100mA
R1
R2
50k
3k
470uF
+
CO
1.0uH
Vout
+
100
Optional Filter
Test
Conditions
Results
Line Regulation
VIN = 4.5V to 6.0V, IO = 100mA
20mV = ±0.08%
Load Regulation
VIN = 5.0V, IO = 20mA to 100mA
30mV = ±0.12%
Output Ripple
VIN = 5.0V, IO = 100mA
500mVPP
Efficiency
VIN = 5.0V, IO = 100mA
60%
AP34063
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AP34063
Absolute Maximum Ratings (@TA = +25°C, unless otherwise specified.)
Stresses greater than the 'Absolute Maximum Ratings' specified above, may cause permanent damage to the device. These are stress ratings only; functional
operation of the device at these or any other conditions exceeding those indicated in this specification is not implied. Device reliability may be affected by exposure to
absolute maximum rating conditions for extended periods of time.
Symbol
Parameter
VCC
Power Supply Voltage
VIR
Comparator Input Voltage Range
Value
Unit
40
V
-0.3 to +40
V
V
VC(SWITCH)
Switch Collector Voltage
40
VE(SWITCH)
Switch Emitter Voltage (VPIN 1 = 40V)
40
V
VCE(SWITCH)
Switch Collector to Emitter Voltage
40
V
VC(DRIVER)
Driver Collector Voltage
40
V
IC(DRIVER)
Driver Collector Current
100
mA
Switch Current
ISW
Power Dissipation (Note 4)
PD
θJA
Thermal Resistance
θJC
Notes:
TMJ
Maximum Junction Temperature (Note 5)
TOP
Operating Junction Temperature Range
Tstg
Storage Temperature Range
1.6
A
SO-8: TA = +25°C
600
mW
PDIP-8: TA = +25°C
SO-8
PDIP-8
SO-8
PDIP-8
1.25
W
117
138
19
25
°C/W
+150
°C
0 to +105
°C
-65 to +150
°C
4. Maximum package power dissipation limits must be observed.
5. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient temperature as possible.
Electrical Characteristics (VCC = 5.0V, unless otherwise specified.)
Symbol
OSCILLATOR
Parameter
Min
Typ
Max
Unit
fOSC
Frequency (VPIN 5 = 0V, CT = 1.0ηF, TA = +25°C)
24
33
42
kHz
ICHG
Charge Current (VCC = 5.0V to 40V, TA = +25°C)
24
30
42
µA
Discharge Current (VCC = 5.0V to 40V, TA = +25°C)
140
200
260
µA
Discharge to Charge Current Ratio (Pin 7 to VCC, TA = +25°C)
5.2
6.5
7.5
—
300
400
450
mV
—
1.0
1.3
V
—
0.45
0.7
V
50
75
—
—
—
0.01
100
µA
IDISCHG
IDISCHG / ICHG
Vipk (SENSE)
Current Limit Sense Voltage (ICHG = IDISCHG, TA = +25°C)
OUTPUT SWITCH (Note 3)
Saturation Voltage, Darlington Connection
VCE (sat)
(ISW = 1.0A, Pins 1, 8 connected)
Saturation Voltage, Darlington Connection
VCE (sat)
(ISW = 1.0A, ID = 50mA, Forced β ≈ 20)
hFE
DC Current Gain (ISW = 1.0A, VCE = 5.0V, TA = +25°C)
IC(off)
Collector Off-State Current (VCE = 40V)
COMPARATOR
Vth
—
—
Threshold Voltage
TA = +25°C
TA = 0°C to +70°C
RegLINE
Threshold Voltage Line Regulation (VCC = 3.0V to 40V)
TOTAL DEVICE
ICC
AP34063
Supply Current (VCC = 5.0V to 40V, CT =1.0ηF, Pin 7 = VCC,
VPIN 5 > VTH Pin 2 = Gnd, remaining pins open)
—
—
—
V
1.225
1.21
1.25
—
1.275
1.29
—
—
—
1.4
6.0
mV
—
—
3.5
mA
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AP34063
Representative Schematic Diagram
Drive
Collector
8
S Q
Ipk
Sense
Comparator
+
_
Comparator
Inverting
Input
Switch
Emitter
3
Timing
Capacitor
CT
6
VCC
2
Q1
100
Ipk
Oscillator
Switch
Collector
Q2
R
7
1
1.25V
Reference
Regulator
5
4
Gnd
(Bottom View)
AP34063
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AP34063
Typical Performance Characteristics
Figure 1. Vce(sat) versus le
Figure 2. Reference Voltage versus Temp.
1.26
Reference Voltage (V)
Vce(sat), Saturation Voltage (V)
1.4
1.2
1
0.8
1.255
1.25
1.245
0.6
1.24
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
0
10
20
30
Ie, Emitter Current (A)
Figure 3. Current Limit Sense Voltage
versus Temperature
Icc, Supply Current (mA)
Current Sense Voltage (mV)
400
380
360
340
20
30
40
50
60
70
80
90
2.5
2.0
1.5
1.0
100
0
5
10
15
20
25
30
35
40
Vcc, Supply Voltage (V)
Figure 6.Output Switch On-Off Time versus
Oscillator Timing Capacitor
1000
ton-off, Output Switch On-Off Time(us)
VCE ( sat), (V)
100
0.0
10
Vcc=2~10V
Pin1,7,8=Vcc
Pin3,5=GND
TA=25oC
Pin2=5 ≤10W
1.6
1.55
1.5
1.45
300
500
700
900
IE(mA)
AP34063
90
0.5
1.8
1.4
100
80
3.0
Figure 5. Emitter Follower Configuration
Output Saturation Voltage vs. Emitter Current
1.65
70
3.5
Temperature (oC)
1.7
60
4.0
420
1.75
50
Figure 4. Standby Supply Current
versus Supply Voltage
440
320
0
40
Temperature (oC)
1100
1300
1500
100
VCC = 5.0V
Pin 7 = VCC
Pin 5 = GND
TA = 25oC
ton
10
t off
1
0.1
0.01
0.1
1
CT, Oscillator Timing Capacitor ( nF)
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AP34063
Design Formula Table
Calculation
Step-Up
Step-Down
VOUT + VF –VIN(MIN)
tON / tOFF
VOUT + VF
VIN(MIN) – VSAT
tON + tOFF
tON + tOFF
+1
( tON +tOFF ) – tOFF
4.0 × 10 tON
-5
4.0 × 10 tON
2IOUT(MAX) (tON / tOFF +1)
2IOUT(MAX)
2IOUT(MAX) (tON / tOFF +1)
0.3 / IPK (SWITCH)
0.3 / IPK (SWITCH)
CT
4.0 × 10 tON
IPK (switch)
RSC
( VIN(MIN) – VSAT )
IPK (SWITCH)
9
tOFF
( tON +tOFF ) – tOFF
-5
CO
tON + tOFF
tON
+1
tOFF
( tON +tOFF ) – tOFF
L (MIN)
1/f
tON
+1
tOFF
tON
VIN(MIN) – VSAT
1/f
tON
tOFF
I VOUT l + VF
VIN(MIN) – VSAT – vOUT
1/f
( tON + tOFF )
Voltage-Inverting
-5
tON(MAX)
(VIN(MIN) – VSAT – VOUT)
IPK (SWITCH)
0.3 / IPK (SWITCH)
( VIN(MIN) – VSAT )
tON(MAX)
IOUT tON
IPK (SWITCH) (tON + tOFF)
VRIPPLE (pp)
8VRIPPLE (pp)
tON(MAX)
IPK (SWITCH)
IOUT tON
9
VRIPPLE (pp)
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.
VOUT - Desired output voltage, |VOUT| = 1.25 (1+R2/R1)
IOUT - Desired output current.
FMIN - 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.
Ordering Information
AP 34063 XX X - X
Package
S8 : SO-8
N8 : PDIP-8
Pb
Lead-Free
Pb
Lead-Free
Part Number
Package
Code
Packaging
AP34063S8L-13
AP34063S8G-13
AP34063N8L-U
S8
S8
N8
SO-8
SO-8
PDIP-8
AP34063
Lead Free
L : Lead Free
G : Green
Tube
Part Number
Quantity
Suffix
NA
NA
NA
NA
60
-U
Packing
U : Tube
13 : Tape & Reel
13” Tape and Reel
Quantity
Part Number Suffix
2500/Tape & Reel
2500/Tape & Reel
NA
-13
-13
NA
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AP34063
Marking Information
(1)
SO-8
( Top View )
8
Logo
Part No.
5
AP34063
YY WW X X
1
4
L : Lead Free
G : Green
Internal code
Xth week = 01~52
Year : "08" = 2008
"09" = 2009
~
(2)
PDIP-8
( Top View )
8
Logo
Part No.
5
AP34063
YY WW X X
1
4
L : Lead Free
Internal code
Xth week = 01~52
Year : "08" = 2008
"09" = 2009
~
AP34063
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AP34063
Package Outline Dimensions (All dimensions in mm.)
Please see AP02002 at http://www.diodes.com/datasheets/ap02002.pdf for latest version.
0.254
(1) SO-8
E1 E
A1
L
Gauge Plane
Seating Plane
Detail ‘A’
7°~9°
h
45°
Detail ‘A’
A2 A A3
b
e
D
SO-8
Dim
Min
Max
A
1.75
A1
0.10
0.20
A2
1.30
1.50
A3
0.15
0.25
b
0.3
0.5
D
4.85
4.95
E
5.90
6.10
E1
3.85
3.95
e
1.27 Typ
h
0.35
L
0.62
0.82
0°
8°
θ
All Dimensions in mm
(2) PDIP-8
A
B
L
G
M
C
N
K
H
AP34063
J
D
F
PDIP-8
Dim
Min
Max
A
9.02
9.53
B
6.15
6.35
C
3.10
3.50
D
0.36
0.56
F
1.40
1.65
G
2.54 typ.
H
0.71
0.97
J
0.20
0.36
K
2.92
3.81
L
7.62
8.26
M
15°
⎯
N
0.38 (min)
All Dimensions in mm
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AP34063
Suggested Pad Layout
Please see AP02001 at http://www.diodes.com/datasheets/ap02001.pdf for the latest version.
(1) SO-8
X
Dimensions
X
Y
C1
C2
C1
C2
Value (in mm)
0.60
1.55
5.4
1.27
Y
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INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the
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Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express
written approval of the Chief Executive Officer of Diodes Incorporated. As used herein:
A. Life support devices or systems are devices or systems which:
1. are intended to implant into the body, or
2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the
labeling can be reasonably expected to result in significant injury to the user.
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failure of the life support device or to affect its safety or effectiveness.
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