Document Outline
- DESCRIPTION
- FEATURES
- APPLICATIONS
- SIMPLIFIED DEVICE DIAGRAM
- ORDERING INFORMATION
- PIN CONFIGURATION
- INTERNAL EQUIVALENT CIRCUIT
- PIN DESCRIPTION
- MAXIMUM RATINGS
- ELECTRICAL CHARACTERISTICS
- TYPICAL PERFORMANCE CURVES
- TEST CIRCUITS
- APPLICATION INFORMATION
- PACKING METHOD
- PACKAGE OUTLINE
- Data sheet status
- Definitions
- Disclaimers
- Contact information
Philips
Semiconductors
SA58605
Dual operational amplifier
and 2.5 V shunt regulator
Product data
2002 Mar 25
INTEGRATED CIRCUITS
Philips Semiconductors
Product data
SA58605
Dual operational amplifier and 2.5 V shunt regulator
2
2002 Mar 25
8532334 27919
DESCRIPTION
The SA58605 incorporates two op amps and 2.5 V shunt regulator
in an unique circuit configuration. The output of the device is
inverted when the inverting inputs of either or both op amps exceed
the internally set reference voltages at their non-inverting inputs.
Amp "A" is referenced to 2.5 V while Amp "B" is referenced to
154 mV. The SA58605 incorporates a "NOR logic" configuration with
these specific gate levels.
SA58605 supports voltage control and sensor applications such as
AC adapter, switch mode power supply and battery chargers. It is
available in the 5 leaded, SOT23-5 surface mount package.
FEATURES
Low input bias current:
30 nA typ.
Low operating supply current:
1.2 mA typ.
Reference voltages at non-inverting inputs:
Amp "A" at 2.5 V typ.
Amp "B" at 154 mV
APPLICATIONS
AC adapter and battery charger
Switched Mode Power Supply (SMPS)
Control voltage/sensor
SIMPLIFIED DEVICE DIAGRAM
AMP A
AMP B
4000
46920
3080
5
4
1
2
3
V
CC
A
IN
B
IN
GND
OUT
SL01618
Figure 1. Simplified system diagram.
Philips Semiconductors
Product data
SA58605
Dual operational amplifier and 2.5 V shunt regulator
2002 Mar 25
3
ORDERING INFORMATION
TYPE NUMBER
PACKAGE
TEMPERATURE
TYPE NUMBER
NAME
DESCRIPTION
RANGE
SA58605D
SOT23-5, SOT25, SO5
plastic small outline package; 5 leads
(see dimensional drawing)
40 to +85
C
Part number marking
The package is marked with a four letter code. The first three letters
designate the product. The fourth letter, represented by `x', is a date
tracking code.
Part Number
Marking
SA58605D
AJAx
PIN CONFIGURATION
SL01613
1
2
3
4
5
V
CC
A
IN
B
IN
GND
OUT
SA58605
Figure 2. Pin configuration.
PIN DESCRIPTION
PIN
SYMBOL
DESCRIPTION
1
OUT
Output.
2
GND
Ground.
3
B
IN
Amp B inverting input. Non-inverting input
internally set at 154 mV reference voltage.
4
A
IN
Amp A inverting input. Non-inverting input
internally set at 2.5 V reference voltage.
5
V
CC
Positive supply.
INTERNAL EQUIVALENT CIRCUIT
AMP A
AMP B
4000
46920
3080
5
4
1
2
3
V
CC
A
IN
B
IN
GND
OUT
SL01618
Figure 3. Internal equivalent circuit.
Philips Semiconductors
Product data
SA58605
Dual operational amplifier and 2.5 V shunt regulator
2002 Mar 25
4
MAXIMUM RATINGS
SYMBOL
PARAMETER
MIN.
MAX.
UNIT
V
CC
Supply voltage
0.3
+20
V
T
amb
Ambient operating temperature
40
+85
C
T
stg
Storage temperature
40
+125
C
P
Power dissipation
250
mW
ELECTRICAL CHARACTERISTICS
T
amb
= 25
C, V
CC
= 5 V (see Figure 6 "Test circuit", and Table 1 "Parameter test circuit 1 and power supply settings"), unless otherwise
specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
I
CC
Supply current
A
IN
= 0 V; B
IN
= 0 V; R
L
=
1.2
1.7
mA
A amplifier
V
o(A)
Output inverting voltage (A)
B
IN
= 0 V; R
L
= 4.3 k
2.45
2.50
2.55
V
I
i(bias)(A)
Input bias current (A)
B
IN
= 0 V; R
L
= 4.3 k
30
150
nA
PSSR (A)
PSSR (A)
B
IN
= 0 V; R
L
= 4.3 k
62
dB
I
o(sink)(A)
Output sink current (A)
A
IN
= 2.7 V; B
IN
= 0 V; V
OUT
= 1.5 V
5
mA
B amplifier
V
o(B)
Output inverting voltage (B)
A
IN
= 0 V; R
L
= 4.3 k
151
154
157
mV
I
i(bias)(B)
Input bias current (B)
A
IN
= 0 V; R
L
= 4.3 k
30
150
nA
PSSR (B)
PSSR (B)
A
IN
= 0 V; R
L
= 4.3 k
65
dB
I
o(sink)(B)
Output sink current (B)
A
IN
= 0 V; B
IN
= 0.17 V; V
OUT
= 1.5 V
5
mA
TYPICAL PERFORMANCE CURVES
SL01615
V
CC
, SUPPLY VOLTAGE (V)
2
4
6
3.0
2.5
0
8
OUTPUT INVER
TING
VOL
T
AGE
A
(V)
10 12 14
2.0
1.5
1.0
0.5
0.0
18 20 22
16
24 26 28 30
Figure 4. Output inverting voltage (A) versus V
CC
.
SL01616
V
CC
, SUPPLY VOLTAGE (V)
2
4
6
0.20
0.15
0.18
0.13
0
8
OUTPUT
INVER
TING VOL
T
AGE B (V)
10 12 14
0.10
0.08
0.05
0.03
0.00
18 20 22
16
24 26 28 30
Figure 5. Output inverting voltage (B) versus V
CC
.
Philips Semiconductors
Product data
SA58605
Dual operational amplifier and 2.5 V shunt regulator
2002 Mar 25
5
TEST CIRCUITS
4000
46920
3080
2
3
4
5
1
A
IN
B
IN
OUT
GND
V
CC
1 M
S9
S4
S3
1 M
S8
100 k
0.22
F
0.1
F
S12
1.5 V
V
CC
OUT
R
L
S11
S2
S1
S7
S6
1 k
V
IN
TPA
TPB
OFF
B
IN
A
IN
S5
47
F
680 k
1.5 k
S10
0.22
F
3.9 k
1.5 V
SL01614
A
Figure 6. Test circuit.
Table 1. Parameter test circuit 1 switch and power supply settings
SYMBOL
PARAMETER
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
S12
R
L
(
)
V
IN
(V)
Comments
I
CC
Power supply current
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
OFF
ON
OFF
4.3 k
V
o(A)
Output inverting voltage
(A)
OFF
ON
OFF
OFF
A
IN
OFF
OFF
ON
OFF
ON
ON
OFF
4.3 k
measure TPA
voltage
I
i(bias)(A)
Input bias current (A)
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
OFF
ON
OFF
4.3 k
measure TPA
voltage
I
o(sink)(A)
Output sink current (A)
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
OFF
OFF
OFF
ON
2.7
measure
output sink
current
PSSR (A)
PSSR (A)
OFF
ON
OFF
ON
OFF
OFF
ON
ON
OFF
OFF
ON
OFF
4.3 k
V
o(A)
Note 1
V
o(B)
Output inverting voltage
(B)
ON
OFF
OFF
OFF
B
IN
OFF
OFF
OFF
ON
ON
ON
OFF
4.3 k
measure TPB
voltage
I
i(bias)(B)
Input bias current (B)
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
OFF
ON
OFF
4.3 k
measure TPB
voltage
I
o(sink)(B)
Output sink current (B)
OFF
OFF
OFF
OFF
OFF
ON
OFF
OFF
ON
OFF
OFF
ON
0.17
measure
output sink
current
PSSR (B)
PSSR (B)
ON
OFF
ON
OFF
OFF
ON
OFF
OFF
ON
OFF
ON
OFF
4.3 k
V
o(B)
20 mV
Note 2
NOTES:
1. V
OUT1
is defined by the voltage when V
CC
= 4 V. V
OUT2
is defined by the voltage when V
CC
= 25 V. PSSR (A) is shown in Equation (1).
2. V
OUT1
is defined by the voltage when V
CC
= 4 V. V
OUT2
is defined by the voltage when V
CC
= 25 V. PSSR (B) is shown in Equation (1).
PSSR
+
40
)
20 log
(25 V
*
4 V)
(V
OUT1
*
V
OUT2
)
Equation (1)
Philips Semiconductors
Product data
SA58605
Dual operational amplifier and 2.5 V shunt regulator
2002 Mar 25
6
APPLICATION INFORMATION
The SA58605 may be used for various voltage control applications
in which the input threshold voltage exceed 2.5 V for Amp "A" and
154 mV for Amp "B". When either or both input threshold voltage is
exceeded the output is pulled LOW. The output is connected to V
CC
with a pull-up resistance.
Figure 7 shows the schematic for a Universal Converter/Charger
circuit in which the SA58605 Amp "A" is used to monitor the B+ level
of the converter/charger. Amp "B" input is pulled to ground through a
390
resistor and will remain there. The input to the Amp "A" is
maintained at 0.5
B+ with the voltage divider of the two 1.5 k
resistors. As B+ drops below 5 V, the input to Amp "A" of the
SA58605 follows and drops below 2.5 V. This causes the output
(pin 1) to go HIGH and the LED is turned off. Q1 base drive is
reduced and Q2 is increased. Thus, the PW modulation is
increased, and B+ is able to satisfy the load requirements of the
battery and circuitry. As B+ is increased above 5 V, it causes the
input to Amp "A" to increase above 2.5 V. Then, the output goes
LOW and the LED is activated which turns on the detection diode.
This increases the drive on Q1 and pulls down the base of Q2
reducing it base drive. With Q2 conducting less, the PW modulation
is decreased and B+ is reduced. Under quasi-steady state, B+ is
maintained at 5 V.
D1
D2
0.033 pF
8.2 k
Q1
8.3
F
/250 V
L1
10 mH
Q2
2.7 k
100
V
IN
= 85 265 VAC
0.1
F
100
MUR160
56 k
0.001
F
/1 kV
D4
SA58605
5
4
1
3
2
390
Q4
Q3
100
F
/16 V
800
F
/8 V
1 M
47 k
D3
100
0.1
F
0.1
F
0.22
390
1.5 k
68
H
1.5 k
1 k
100
F
/16 V
B+
GND
SFH615A-4
SR01619
0.022
F
T1
Figure 7. Universal converter/charger application.
Components used in Figure 7
D1D4:
1N5822
Q1Q4:
2N3904
T1:
Cooper Electronic Technologies
Part#:
CTX22-25348
Primary:
47 YTurns of #29 AWG, Pin 4 = Start, Pin 5 = Finish
Secondary:
5 Turns of 0.40 mm, Pins 1 and 2 = Start, Pins 7 and 8 = Finish
Gap:
Designed for total primary inductance of 1.24 mH
Core:
TSF-7070
Bobbin:
Pins 3 and 6 removed, EE19
Philips Semiconductors
Product data
SA58605
Dual operational amplifier and 2.5 V shunt regulator
2002 Mar 25
7
PACKING METHOD
SL01305
TAPE DETAIL
COVER TAPE
CARRIER TAPE
REEL
ASSEMBLY
TAPE
GUARD
BAND
BARCODE
LABEL
BOX
Figure 8. Tape and reel packing method.
Philips Semiconductors
Product data
SA58605
Dual operational amplifier and 2.5 V shunt regulator
2002 Mar 25
8
SOT23-5: plastic small outline package; 5 leads; body width 1.5 mm
1.35
1.2
1.0
0.025
0.55
0.41
0.22
0.08
3.00
2.70
1.70
1.50
0.55
0.35
Philips Semiconductors
Product data
SA58605
Dual operational amplifier and 2.5 V shunt regulator
2002 Mar 25
9
NOTES
Philips Semiconductors
Product data
SA58605
Dual operational amplifier and 2.5 V shunt regulator
2002 Mar 25
10
Definitions
Short-form specification -- The data in a short-form specification is extracted from a full data sheet with the same type number and title. For
detailed information see the relevant data sheet or data handbook.
Limiting values definition -- Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 60134). Stress above one
or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or
at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended
periods may affect device reliability.
Application information -- Applications that are described herein for any of these products are for illustrative purposes only. Philips
Semiconductors make no representation or warranty that such applications will be suitable for the specified use without further testing or
modification.
Disclaimers
Life support -- These products are not designed for use in life support appliances, devices or systems where malfunction of these products can
reasonably be expected to result in personal injury. Philips Semiconductors customers using or selling these products for use in such applications
do so at their own risk and agree to fully indemnify Philips Semiconductors for any damages resulting from such application.
Right to make changes -- Philips Semiconductors reserves the right to make changes, without notice, in the products, including circuits, standard
cells, and/or software, described or contained herein in order to improve design and/or performance. Philips Semiconductors assumes no
responsibility or liability for the use of any of these products, conveys no license or title under any patent, copyright, or mask work right to these
products, and makes no representations or warranties that these products are free from patent, copyright, or mask work right infringement, unless
otherwise specified.
Contact information
For additional information please visit
http://www.semiconductors.philips.com.
Fax: +31 40 27 24825
For sales offices addresses send e-mail to:
sales.addresses@www.semiconductors.philips.com.
Koninklijke Philips Electronics N.V. 2002
All rights reserved. Printed in U.S.A.
Date of release: 05-02
Document order number:
9397 750 09865
Philips
Semiconductors
Data sheet status
[1]
Objective data
Preliminary data
Product data
Product
status
[2]
Development
Qualification
Production
Definitions
This data sheet contains data from the objective specification for product development.
Philips Semiconductors reserves the right to change the specification in any manner without notice.
This data sheet contains data from the preliminary specification. Supplementary data will be
published at a later date. Philips Semiconductors reserves the right to change the specification
without notice, in order to improve the design and supply the best possible product.
This data sheet contains data from the product specification. Philips Semiconductors reserves the
right to make changes at any time in order to improve the design, manufacturing and supply.
Changes will be communicated according to the Customer Product/Process Change Notification
(CPCN) procedure SNW-SQ-650A.
Data sheet status
[1] Please consult the most recently issued data sheet before initiating or completing a design.
[2] The product status of the device(s) described in this data sheet may have changed since this data sheet was published. The latest information is available on the Internet at URL
http://www.semiconductors.philips.com.
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