FAIRCHILD RC4194

www.fairchildsemi.com
RC4194
Dual Tracking Voltage Regulators
Features
• Simultaneously adjustable outputs with one resistor
to ±42V
• Load current – ±200 mA with 0.04% load regulation
• Internal thermal shutdown at TJ = +175°C
• External balance for ±VOUT unbalancing
• 3W power dissipations
Description
Block Diagram
The RC/RM4194 are dual polarity tracking regulators
designed to provide balanced or unbalanced positive and
negative output voltages at currents to 200 mA.
A single external resistor adjustment can be used to change
both outputs between the limits of ±50 mV and ±42V.
These devices are designed for local “on-card” regulation,
eliminating distribution problems associated with singlepoint regulation. To simplify application the regulators
require a minimum number of external parts.
The device is available in three package types to accommodate various power requirements. The K (TO-66) power
package can dissipate up to 3W at TA = +25°C. The D
14-pin dual in-line will dissipate up to 1W and the N
14-pin dual in-line will dissipate up to 625 mW.
4194
+VS
+VOUT
GND
20K
Comp+
100µA
Current
Source
RSET
Bal
20K
Comp–
RO
Thermal
Shutdown
–VOUT
–VS
3R
R
65-4194-01
Rev. 1.0.0
PRODUCT SPECIFICATION
RC4194
Pin Assignments
-VS (Case)
+VS
+VOUT
GND
6
Comp+
5
4
7
3
2
8
Bal
R SET
9
Comp-
1
RO
-VOUT
+VOUT
1
14 +V S
NC
2
13
NC
Comp+
3
12
GND
Bal
4
11
R SET
Comp-
5
10
RO
NC
6
9
NC
-V S
7
8
-VOUT
65-4194-03
65-4194-02
Absolute Maximum Ratings
(beyond which the device may be damaged)1
Parameter
Supply Voltage
Supply Input to Output Voltage Differential
Load Current
PDTA < 50°C
Max
Units
RC4194
Min
Typ
±35
V
RM4194
±45
V
RC4194
±35
V
RM4194
±45
V
PDIP
100
mA
CerDIP
150
mA
TO-66 Metal Can
250
mA
PDIP
468
mW
CerDIP
1042
mW
TO-66 Metal Can
Operating Temperature (Tj)
2381
mW
RC4194
0
70
°C
RM4194
-55
125
°C
-65
150
°C
PDIP
125
°C
CerDIP
175
°C
TO-66 Metal Can
150
°C
300
°C
Storage Temperature
Junction Temperature
Lead Soldering Temperature (60 seconds)
For TA > 50°C Derate at
TO-66 Metal Can
23.81
mW/°C
PDIP
6.25
mW/°C
CerDIP
8.38
mW/°C
Note:
1. Functional operation under any of these conditions is NOT implied.
2
RC4194
PRODUCT SPECIFICATION
Operating Conditions
Parameter
qJC
qJA
Min
Thermal Resistance
Thermal Resistance
Typ
Max
Units
CerDIP
60
°C/W
TO-66 Metal Can
7
°C/W
PDIP
160
°C/W
CerDIP
120
°C/W
TO-66 Metal Can
42
°C/W
Electrical Characteristics
(±5 £ VOUT £ VMAX; –VIN £ -8V; IL = ±1mA; RM4194: -55°C £ Tj £ +125°C; RC4194: 0°C £ Tj £ +70°C
unless otherwise specified)
Parameters
Typ
Max
Units
Line Regulation
DVS = 0.1 VIN
Test Conditions
Min
0.04
0.1
%VOUT
Load Regulation1
4194K: IL < 200 mA
4194D: IL < 100 mA
±VS = ± (VOUT + 5)V
0.002
0.004
%VOUT/IL
(mA)
Positive Output
VOUT = ±5V
0.002
0.015
%/°C
Negative Output
VOUT = ±5V
0.003
0.015
%/°C
VS = ±VMAX, VOUT = 0V,
IL = 0 mA
+0.8
+2.5
mA
Supply Current4 (Negative)
VS = ±VMAX, VOUT = 0V,
IL = 0 mA
-1.8
-4.0
mA
Supply Voltage
RM4194
±9.5
±45
V
RC4194
±9.5
±35
V
Output Voltage Scale Factor
RSET = 71.5 kW, Tj = +25°C,
VS = ±VMAX
2.38
2.62
kW/V
Output Voltage Range
RM4194: RSET = 71.5 kW,
IL = 25 mA
0.05
±42
V
RC4194: RSET = 71.5 kW,
IL = 25 mA
0.05
±42
V
±2.0
%
Output Voltage Drift With
Temperature2
Supply
Current3
(Positive)
2.5
±0.4
Output Voltage Tracking
Ripple Rejection
F = 120 Hz, Tj = +25°C
Input-Output Voltage Differential
IL = 50 mA, Tj = +25°C
Short Circuit Current
VS = ±30V, Tj = +25°C
300
mA
Output Noise Voltage
CL = 4.7 mF, VOUT = ±15V,
F = 10 Hz to 100 kHz
250
mVRMS
175
°C
Internal Thermal Shutdown
70
3.0
dB
V
Notes:
DV OUT
1. Measured as æ ------------------ ´ 100%ö § I L (mA)
è V OUT
ø
2. Output voltage temperature drift guaranteed by design.
3. The current drain will increase by 50mA/VOUT on positive side and 100mA/VOUT on negative side.
4. The specifications above apply for the given junction temperatures since pulse test conditions are used.
3
PRODUCT SPECIFICATION
RC4194
Typical Performance Characteristics
0.06
110
90
VOUT = ±15V
70
50
10
0
65-0201
30
100
1K
10K
100K
0.05
0.04
Tj = +125¡C
0.03
0.02
Tj = +25¡C
0.01
0
65-0202
130
Load Regulation (% VOUT/IL)
Ripple Rejection (dB)
150
-0.01
0
20
40
60
80 100 120 140 160 180 200
F (Hz)
IL (mA)
Figure 2. Load Regulation vs. Load Current
0.8
0.6
0.4
0.2
0
-0.2
A
B
-0.4
C
-0.6
-60 -40 -20
65-0203
Output Voltage Tracking (% VOUT)
Figure 1. Ripple Rejection vs. Frequency
0
+20 +40 +60 +80 +100+120+140
Tj (¡C)
A = % Tracking of VOUT
B = T.C. for Positive Regulator
C = T.C. for Negative Regulator
Figure 3. Output Voltage Tracking vs. Temperature
4
RC4194
PRODUCT SPECIFICATION
Typical Applications
+VOUT
To Additional
Comparators
4.7µF**
0.01µF
+VS
+VS
Comp+
+VOUT
RM4194
-VS
-VS
R SET Comp- Gnd
RA
R0
(Typically 15 RC4805s)
4805
Bal
RB
-VOUT
-V OUT = -5V
To Additional
Comparators
71.5K
R0
4.7µF
R O (k½ ) = 2.5 (-VOUT )
Adjust R O for -VOUT = -5V (12.5 kW )
R F1 = R F2 = 20 k½ (See Schematic)
0.01µF
R F1
+ VOUT = -VOUT R
F2
R A = when +VOUT
65-0205
RA
RB
-VOUT
R B = when +VOUT
-V OUT
For +VOUT = 5 when -VOUT = -5V
RA =
RB =
Figure 4. Unbalanced Output Voltage — Comparator Application
R SC*
2N4905 or equiv.
0.1 mF
2N2297 or equiv.
+VOUT
47W
+VS
+VS
Comp+
+V OUT
GND
60µF**
4194
47 W
-VS
-VS
R SET
Comp-
R0
-V OUT
-V OUT
60µF
0.1 mF
R0
2N2297 or equiv.
71.5K
Load regulation
10 mV @ 2.5A
R SC*
R O (k W) = 2.5 V O
2N914 or equiv.
*R SC =
0.7
I SC
**Optional usage - Not as critical as -VO bypass capacitors.
Note: Compensation and bypass capacitor connections should be close as posibe to the 4194
65-0206
Figure 5. High Output Application
5
PRODUCT SPECIFICATION
RC4194
Typical Applications (continued)
+VOUT = +15V
To Additional
Op Amps
0.001µF
4.7µF**
+VS
+VOUT
Comp+
+VS
4194
-VS
-VS
R SET Comp-
(Typically 180 741s)
741
-V OUT = -15V
To Additional
Op Amps
-V OUT
R0
Gnd
71.5K
R0
4.7µF
0.001µF
65-0204
R O (k½) = 2.5 V OUT
Figure 6. Balanced Output Voltage — Op Amp Application
+VS = +25V
2
In
0.01µF
Out
6
REF-02
VOUT = 4 I O R1
R2
250
-VS
Gnd
4
0.001
+V O
CC
4.87K
15
14 3
Ref+ -V S
Ref-
16
Comp
13
+VS
2 R
0
2
+V OUT (0 to +19.92V)
10µF
IO
IO
V LC
B1
6
IO
4
DAC-08
1
7
5
Comp + +VS
R1
2.49K
B8
3 R
SET
NC
5 6 7 8 9 10 11 12
RC4194K
-VO 1
Comp- -VS
Gnd
Case 4
9
-V OUT (0 to -19.92V)
10µF
LSB
MSB
Binary Inputs
0.001
-VS = -25V
Adjust R2 for -19.92V at -VOUT with all "1s" at binary inputs,
then optionally adjust R3 for +19.92V at +VOUT
+Vo
6
Optional Tracking
Adjustment
R3
65-1725
RC4194K
Bal
-Vo
Figure 7. Digitally Controlled Dual 200 mA Voltage Regulator
6
8 100K
1
100K
RC4194
PRODUCT SPECIFICATION
RC4194 Switchable Power Supply
Compensation
The outputs of the RC4194 can be simultaneously switched
on or off under logic control as shown in Figure 8. In the
“off” state, the outputs will be forced to a minimum voltage,
or about ±20 mV, rather than becoming open-circuit. The
turn-on time, with the outputs programmed to ±12V, is
approximately 200 mS. This circuit works by forcing the R0
pin to ground with an analog switch.
For most applications, the following compensation technique
is sufficient. The positive regulator section of the RC4194 is
compensated by a 0.001 mF ceramic disc capacitor from the
Comp+ terminal to ground. The negative regulator requires
compensation at two points. The first is the Comp– pin,
which should have 0.001 mF to the –VS pin, or case. A
ceramic disc is ideal here. The second compen-sation point
for the negative side is the –VOUT terminal, which ideally
should be a 4.7 mF solid tantalum capacitor with enough
reserve voltage capacity to avoid the momentary shorting
and reforming which can occur with tantalum caps. For systems where the cost of a solid tantalum capacitor cannot be
justified, it is usually sufficient to use an aluminum capacitor
with a 0.03 mF ceramic disc in parallel to bypass high frequencies. In addition, if the rectifier filter capacitors have
poor high frequency characteristics (like aluminum electrolytics) or if any impedance is in series with the +VS and –VS
terminals, it is necessary to bypass these two points with
0.01 mF ceramic disc capacitors. Just as with monolithic op
amps, some applications may not require these bypass caps,
but if in doubt, be sure to include them.
Refer to the RC4194 internal schematic diagram. A reference voltage that regulates with respect to –VS is generated
at the RSET pin by the zener diode Q12 and the buffer circuit of Q11 and Q13. When the external 71.5k RSET resistor is connected between the RSET pin and –VS, a precision
current of 100 mA is generated which then flows into Q13’s
collector. Since Q13’s collector is tied to the R0 pin, the 100
mA current will develop a ground-referenced voltage drop
proportional to the value of R0, which is then amplified by
the internal error amplifier. When the analog switch in Figure 8 turns on, it effectively shorts out R0 and causes 0V to
be applied to the error amplifier. The output voltage in the
off state will be approxi-mately ±20 mV. If a higher value
(50 to 100 mV) is acceptable, then the DG201 analog switch
can be replaced with a low-cost small signal transistor, as
shown in the alternate switch configuration.
C
0.001 µF
+VS
Comp+
+VS
0.001 m F
4.7 µF
4194
–VS
–VOUT
RSET
-VS
RSET
71.5K
+VS
+12V
+VOUT
Comp–
–VS
R0
-12V
4.7 µF
Gnd
R0
30K
* Alternate Switch Configuration
4194
R0
Logic
DG201
*
Gnd
47K
2N3904
30K
*Quad SPST CMOS Analog Switch
65-4083
Figure 8. ±12V Switchable Power Supply
7
PRODUCT SPECIFICATION
RC4194
All compensation and bypass caps should have short leads,
solid grounds, and be located as close to the 4194 as possible. Refer to Figure 9 for recommended compensation circuitry.
0.001µF
+VS
Comp+
+VS
0.01µF
Protection
–VS
In systems using monolithic voltage regulators, a number of
conditions can exist which, left uncorrected, will destroy the
regulator. Fortunately, regulators can easily be protected
against these potentially destructive conditions. Monolithic
regulators can be destroyed by any reversal of input or output
voltage polarity, or if the input voltage drops below the output voltage in magnitude. These conditions can be caused by
inductive loads at the inputs or outputs of the regulator.
Other problems are caused by heavy loads at the unregulated
inputs to the regulator, which might cause the input voltage
to drop below the output voltage at turn-off. If any of the
preceding problem conditions are present in your system, it
is recommended that you protect the regulator using diodes.
These diodes should be high speed types capable of handling
large current surges. Figure 10 shows all six of the possible
protection diodes. The diodes at the inputs and outputs prevent voltages at those points from becoming reversed.
Diodes from outputs to inputs prevent the output voltage
from exceeding the input voltage. Chances are that the system under consideration will not require all six diodes, but if
in doubt, be sure to include them.
+VOUT
+VOUT
–VOUT
RSET Comp-
–VOUT
4194
–VS
R0
4.7µF
0.001µF
65-4201
0.01µF
Note:
All Capacitors are Ceramic Disc
Except * = Solid Tantalum
Figure 9. RC4194 Recommended Compensation
Sometimes occasions arise in which the RC4194 ratings
must be exceeded. One example is the “brownout.” During
a brownout, line voltages may be reduced to as low as 75
VRMS, causing the input voltage to the RC4194 to drop
below the minimum dropout voltage. When this happens,
the negative output voltage can go to positive. The maximum
amount of current available is approximately 5 mA.
Brownout Protection
In general this is not enough current to damage most ICs
which the RC4194 might be supplying, but it is a potentially
destructive condition. Fortunately, it is easy to protect
against. As shown in the typical application circuit in Figure
11, a diode, D, can be connected to the negative output.
The RC4194 is one of the most easily applied and troublefree monolithic ICs available. When used within the data
sheet ratings (package power dissipation, maximum output
current, minimum and maximum input voltages) it provides
the most cost-effective source of regulated ±15V for powering linear ICs.
0.001µF
+VS
+VS
0.01µF
-VS
Comp+
+VOUT
+VOUT
4194
-V OUT
RSET Comp-
-VS R
0
-V OUT
4.7µF *
R0
To
-V OUT
R SET
0.001 F
0.01µF
Note:
All Capacitors are Ceramic Disc
Except * = Solid Tantalum
65-4202
Figure 10. RC4194 Regulator Showing All Protective Diodes
8
*
RSET
R0
RC4194
PRODUCT SPECIFICATION
If a small signal silicon diode is used, it will clamp the negative output voltage at about +0.55V. A Schottky barrier or
germanium device would clamp the voltage at about +0.3V.
Another cure which will keep the negative output negative at
all times is the 1 mW resistor connected between the +15V
output and the Comp- terminal. This resistor will then supply drive to the negative output transistor, causing it to saturate to -1V during the brownout.
Let’s look at an application where a user is trying to determine whether the RC4194 in a high temperature environment will need a heatsink.
Heatsinking
qJ-A = 41.6°C/W, K (TO-66) pkg.
Voltage Regulators are power devices which are used in a
wide range of applications.
When operating these devices near their extremes of load
current, ambient temperature and input-output differential,
consideration of package dissipation becomes important to
avoid thermal shutdown at 175°C. The RC4194 has this feature to prevent damage to the device. It typically starts
affecting load regulation approximately 2°C below 175°C.
To avoid shutdown, some form of heatsinking should be used
or one of the above operating conditions would need to be
derated.*
The following is the basic equation for junction temperature:
TJ = TA + PD qJ – A
Given:
TJ at thermal shutdown = 150°C
TA = 125°C
VIN = 40V
VOUT = 30V
IQ = 1 mA + 75 mA/VOUT x 30V
= 3.25 mA*
TJ – TA
q J – A = -----------------PD
TJ – TA
P D = -----------------qJ – A
= ( V IN – V OUT ) ´ I O + V IN ´ I Q
Solve for IO,
V IN ´ I Q
TJ – TA
- – ---------------------------------I O = -----------------------------------------------q J – A ( V IN – V OUT ) ( V IN – V OUT )
Equation 1
–3
where
TJ = junction temperature (°C)
150°C – 125°C 40 ´ 3.25 ´ 10
I O = ----------------------------------------- – ---------------------------------------41.6°C/W ´ 10V
10
= 60 mA – 13 mA ~ 47 mA
TA = ambient air temperature (°C)
qJ-A = thermal resistance from junction to ambient
air (°C/W)
If this supply current does not provide at least a 10% margin
under worst case load conditions, heatsinking should be
employed. If reliability is of prime importance, the multiple
regulator approach should be considered.
The power dissipated by the voltage regulator can be detailed
as follows:
In Equation 1, qJ-A can be broken into the following components:
P D = ( V IN – V OUT ) ´ I O + V IN ´ I Q
qJ-A = qJ-C + qC-S + qS-A
Equation 2
where
where
qJ-C = junction-to-case thermal resistance
VIN = input voltage
qC-S = case-to-heatsink thermal resistance
VOUT = regulated output voltage
qS-A = heatsink-to-ambient thermal resistance
PD = power dissipated by device (W)
IO = load current
IQ = quiescent current drain
———————————————
*The current drain will increase by 50mA/VOUT on positive side and 100mA/VOUT on negative side
9
PRODUCT SPECIFICATION
RC4194
In the above example, let’s say that the user’s load current is
200 mA and he wants to calculate the combined qC-S and
qS-A he needs:
Given qJ-C = 7.15°C/W for the 4194 in the K package,
qC-S + qS-A = 11.75°C/W – 7.15°C/W
Given: IO = 200 mA,
= 4.6°C/W
TJ – TA
q J – A = -------------------------------------------------------------------------( V IN – V OUT ) ´ I O + V IN ´ I Q
50°C – 125°C
= ---------------------------------------------------------------------------------–3
10V ´ 200mA + 40 ´ 3.25 ´ 10
When using heatsink compound with a metal-to-metal
interface, a typical qC-S = 0.5°C/W for the K package.
The remaining qS-A of approximately 4°C/W is a large
enough thermal resistance to be easily provided by a number
of heatsinks currently available. Table 1 is a brief selection
guide to heatsink manufacturers.
= 11.75°C/W
Table 1. Commercial Heatsink Selection Guide
No attempt has been made to provide a complete list of all heatsink manufacturers. This list is only representative.
qS-A1(°C/W)
Manufacturer/Series or Part Number
TO-66 Package
0.31 – 1.0
1.0 – 3.0
Thermalloy — 6441, 6443, 6450, 6470, 6560, 6590, 6660, 6690
Wakefield — 641
Thermalloy — 6123, 6135, 6169, 6306, 6401, 6403, 6421, 6423, 6427, 6442, 6463, 6500
3.0 – 5.0
Wakefield — 621, 623
Thermalloy — 6606, 6129, 6141, 6303
IERC — HP
Staver — V3-3-2
5.0 – 7.0
Wakefield — 690
Thermalloy — 6002, 6003, 6004, 6005, 6052, 6053, 6054, 6176, 6301
IERC — LB
Staver— V3-5-2
7.0 – 10.0
Wakefield — 672
Thermalloy — 6001, 6016, 6051, 6105, 6601
IERC — LA, uP
Staver — V1-3, V1-5, V3-3, V3-5, V3-7
10.0 – 25.0
Thermalloy — 6-13, 6014, 6015, 6103, 6104, 6105, 6117
20
Thermalloy — 6007
30
Thermalloy — 6010
32
Thermalloy — 6011
34
Thermalloy — 6012
45
IERC — LI
60
Wakefield — 650, 651
Dual In-line Package
Staver Co., Inc.: 41-51 N Saxon Ave., Bay Shore, NY 11706
IERC: 135 W Magnolia Blvd., Burbank, CA 91502
Thermalloy: P.O. Box 34829, 2021 W Valley View Ln., Dallas, TX
Wakefield Engin Ind: Wakefield, MA 01880
* All values are typical as given by manufacturer or as determined from characteristic curves supplied by manufacturer.
10
R2
680
Q5
R1
12K
Q4
Q3
R4
500
Q6
Q7
R5
25K
R3
5000
Q8
Note: Pin numbers are for K package.
Q2
Q1
Q47
Q28
Q9
C1
10 pF
R7
5000
Q11
Q10
R6
30K
R18
10K
Q12
Q29
Q30
(3)
RSET
Q13
(2)
R0
R11
3900
Q23
Q34
Q33
Q32
R10
1650
Q22
Q37
Q36
Q35
Q19
Q17
Q16
Comp+
(7)
Q24
Q21
Q20
Q36
Q38
(9)
Comp-
Q43
R9
15K
R8
5000
Q18
R20
200
Q44
-VS
To Case
Q46
Q42
Q26
R14
3000 W
200W
Q25
R21
1.1
Q41
Q31
8 kW
R19
3000
Q40
Q45
R24
20K
R23
20K
+Vs
(5)
65-0198
R15
1.1 W
Q27
(4)
Gnd
Bal
(8)
-VOUT
(1)
RF2
RF1
-VOUT
(6)
RC4194
PRODUCT SPECIFICATION
Simplified Schematic Diagram
11
PRODUCT SPECIFICATION
RC4194
Mechanical Dimensions
9-Lead Metal Can IC Header Package
øD
Symbol
A
Max.
Min.
Max.
A
øb
øD
øD1
e
e1
.250
.028
—
.470
.190
.093
.340
.034
.620
.500
.210
.107
6.35
.71
—
11.94
4.83
2.36
8.64
.86
15.75
12.70
5.33
2.72
F
.050
.360
.142
.958
—
—
.570
.075
—
.152
.962
.350
.145
.590
1.27
9.14
3.61
24.33
—
—
14.48
1.91
—
3.86
24.43
8.89
3.68
14.99
øp
q
r1
r2
S
øb
S
Millimeters
Min.
øD1
F
Inches
Notes
1
Notes:
1. All leads—increase maximum limit by .003 (.08mm) when
lead finish is applied.
øp
e1
e
r2
r1
q
12
RC4194
PRODUCT SPECIFICATION
Mechanical Dimensions (continued)
14-Lead Ceramic DIP Package
Inches
Symbol
Min.
A
b1
b2
c1
D
E
e
eA
L
Q
s1
a
Millimeters
Max.
—
.200
.014
.023
.045
.065
.008
.015
—
.785
.220
.310
.100 BSC
.300 BSC
.125
.200
.015
.060
.005
—
90¡
105¡
Min.
Notes:
Notes
Max.
—
5.08
.36
.58
1.14
1.65
.20
.38
—
19.94
5.59
7.87
2.54 BSC
7.62 BSC
3.18
5.08
.38
1.52
.13
—
90¡
105¡
1. Index area: a notch or a pin one identification mark shall be located
adjacent to pin one. The manufacturer's identification shall not be
used as pin one identification mark.
8
2
2. The minimum limit for dimension "b2" may be .023 (.58mm) for leads
number 1, 7, 8 and 14 only.
8
4
3. Dimension "Q" shall be measured from the seating plane to the base
plane.
4
5, 9
7
4. This dimension allows for off-center lid, meniscus and glass overrun.
3
6
5. The basic pin spacing is .100 (2.54mm) between centerlines. Each
pin centerline shall be located within ±.010 (.25mm) of its exact
longitudinal position relative to pins 1 and 14.
6. Applies to all four corners (leads number 1, 7, 8, and 14).
7. "eA" shall be measured at the center of the lead bends or at the
centerline of the leads when "a" is 90¡.
8. All leads – Increase maximum limit by .003 (.08mm) measured at the
center of the flat, when lead finish applied.
9. Twelve spaces.
D
7
1
8
14
NOTE 1
E
s1
eA
e
A
Q
L
b2
a
c1
b1
13
PRODUCT SPECIFICATION
RC4194
Mechanical Dimensions (continued)
14-Lead Plastic DIP Package
Inches
Symbol
Millimeters
Min.
Max.
Min.
Max.
A
A1
A2
—
.015
.115
.210
—
.195
—
.38
2.93
5.33
—
4.95
B
B1
C
D
D1
E
E1
e
eB
.014
.022
.045
.070
.008
.015
.725
.795
.005
—
.300
.325
.240
.280
.100 BSC
—
.430
.115
.200
14
L
N
.36
.56
1.14
1.78
.20
.38
18.42
20.19
.13
—
7.62
8.26
6.10
7.11
2.54 BSC
—
10.92
2.92
5.08
14
Notes:
Notes
1. Dimensioning and tolerancing per ANSI Y14.5M-1982.
2. "D" and "E1" do not include mold flashing. Mold flash or protrusions
shall not exceed .010 inch (0.25mm).
3. Terminal numbers are shown for reference only.
4. "C" dimension does not include solder finish thickness.
5. Symbol "N" is the maximum number of terminals.
4
2
2
5
D
7
1
8
14
E1
D1
E
e
A
A1
C
L
B1
14
B
eB
PRODUCT SPECIFICATION
RC4194
Ordering Information
Product Number
Temperature Range
Screening
Package
RC4194N
0° to +70°C
Commercial
14 pin Plastic DIP
RC4194D
0° to +70°C
Commercial
14 pin Ceramic DIP
RC4194K
0° to +70°C
Commercial
9 pin TO-66
RM4194D
-55°C to +125°C
Commercial
14 pin Ceramic DIP
RM4194D/883B
-55°C to +125°C
Military
14 pin Ceramic DIP
RM4194K
-55°C to +125°C
Commercial
9 pin TO-66
SMD Number
7705401CA
Note:
1. /883B suffix denotes MIL-STD-883, Par. 1.2.1 compliant device.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES
OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR
CORPORATION. As used herein:
1. Life support devices or systems are devices or systems
which, (a) are intended for surgical implant into the body,
or (b) support or sustain life, and (c) whose failure to
perform when properly used in accordance with
instructions for use provided in the labeling, can be
reasonably expected to result in a significant injury of the
user.
2. A critical component in any component of a life support
device or system whose failure to perform can be
reasonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
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Ó 1998 Fairchild Semiconductor Corporation