PT6943N [TI]
SMPS Controller ; SMPS控制器\n型号: | PT6943N |
厂家: | TEXAS INSTRUMENTS |
描述: | SMPS Controller
|
文件: | 总9页 (文件大小:192K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
PT6940 Series
6-A Dual Output 5-V/3.3-V Input
Integrated Switching Regulator
SLTS155B
Revised (4/8/2002)
Features
• Remote Sensing (Vo1 & Vo2)
• Soft-Start
• High Efficiency Dual Output
(See Ordering Information)
• Short-Circuit Protection
(coordinated shutdown)
• Ideal Power Source for DSPs
• 5V/3.3V Input
• 27-pin Space-Saving Package
• Solderable Copper Case
• 6A Rated (Both Outputs)
• Internal Power-up Sequencing
• Single On/Off Control
• Independent Adjust/Trim
Pin-Out Information
Ordering Information
Description
PT 6941o = +3.3/2.5 Volts
PT 6942o = +3.3/1.8 Volts
PT 6943o = +3.3/1.5 Volts
PT 6944o = +3.3/1.2 Volts
† PT 6946o = +2.5/1.8 Volts
† PT 6947o = +2.5/1.5 Volts
† PT 6948o = +2.5/1.2 Volts
Pin Function
The PT6940 Excalibur™ power modules
are a series of high-efficiency dual-output
regulators, housed in a solderable space-
saving package. The dual output is ideal
for DSP applications that require a second
voltage source for a processor core.
Both outputs from the PT6940 regulator
modules are rated to deliver a full 6A load
current simultaneously, and are internally
sequenced to comply with the power-up
requirements of popular DSP ICs.
Each output can be independently
adjusted with a single external resistor, and
incorporates an output sense to compensate
for voltage drop between the regulator and
load. A short-circuit load fault at either
output will result in the coordinated
shutdown of both voltages.
Pin Function
1
2
STBY* †
Vo1 Adjust
Vo1 Sense
Vo1
15
16
1 7
18
19
20
21
22
23
24
25
26
27
Vin
Vin
3
GND
GND
GND
GND
GND
GND
Vo2
4
5
Vo1
6
Vo1
† -Denotes models that will also operate off
3.3V input bus.
7
GND
GND
GND
GND
GND
GND
Vin
8
9
PT Series Suffix
(PT1234x)
10
11
12
13
14
Vo2
Case/Pin
Configuration
Order
Suffix
Package
Vo2
Code
Vo2 Sense
Vo2 Adjust
Vertical
Horizontal
SMD
N
A
C
(ENE)
(ENF)
(ENG)
Vin
(Reference the applicable package code drawing
for the dimensions and PC layout)
† STBY* pin: Open = Outputs enabled
Ground = Outputs disabled
Standard Application
Vo1 Sense
Vo2 Sense
STBY*
1
3
26
Vo1
4–6
VIN
13–16
PT6940
Vo2
23–25
7–12
17–22
+
+
+
CIN
Co1
Co2
L
O
A
D
L
O
A
D
330µF
330µF
330µF
Cin
= Req’d 330µF * electrolytic
Co1/Co2 = Req’d 330µF * electrolytic
GND
GND
*300µF for Oscon® or low ESR tantalum
(see application notes)
For technical support and more information, see inside back cover or visit www.ti.com
PT6940 Series
6-A Dual Output 5-V/3.3-V Input
Integrated Switching Regulator
General Specifications (Unless otherwise stated, Ta =25°C, Vin =5V, Cin =330µF, Co1 =330µF, Co2 =330µF, and Io1/Io2 =Iomax)
PT6940 Series
Characteristic
Symbol
Conditions
Min
Typ
Max
Units
(1)
(2)
(2)
OutputCurrent
Io
Ta=25°C,naturalconvection
Ta=60°C,200LFMairflow
0.1
0.1
—
—
6
6
A
Input Voltage Range
Vin
OverIoRange
Vo1 ≤2.5V
3.1
4.5
—
—
5.5
5.5
V
Vo1 >2.5V
Set Point Voltage Tolerance
Temperature Variation
Line Regulation
Vo tol
Regtemp
—
—
—
—
0.5
0.5
5
2
—
10
10
%V
o
%V
o
mV
mV
–40° ≤Ta≤ +85°C, Io =Iomin
Over Vin range
Over Iorange
Reg
line
Load Regulation
Regload
5
Total Output Voltage Variation
∆Votot
Includes set-point, line, load,
Vo =3.3V
Vo =2.5V
Vo =1.8V
Vo =1.5V
Vo =1.2V
—
—
—
—
—
43
35
28
25
22
100
–40° ≤Ta ≤ +85°C
75
54
45
36
mV
Efficiency
η
Vin =5V, Io1 = Io2 =4A
PT6941
PT6942
PT6943
PT6944
PT6946
PT6947
PT6948
—
—
—
—
—
—
—
92
—
91
90
90
89
88
87
—
—
—
—
—
—
%
Vo Ripple (pk-pk)
TransientResponse
Vr
ttr
∆Vtr
Isc(pk)
ƒo
20MHz bandwidth
1A/µsloadstep, 50%to100%Iomax
Voover/undershoot
Reset followed by auto-recovery
OverVin range
—
—
—
—
35
60
70
13
350
—
—
—
—
mVpp
µs
mV
A
(3)
Short Circuit Threshold
SwitchingFrequency
300
400
kHz
STBY* (Pin 1)
Referencedto GND(pin7)
(4)
Input High Voltage
InputLowVoltage
VIH
VIL
—
—
—
Open
+0.4
V
–0.1
Input Low Current
IIL
Iin standby
—
—
330
–40
-0.5
10
—
–
20
TBD
+85
+125
—
mA
mA
µF
QuiescentCurrent
ExternalOutputCapacitance
OperatingTemperatureRange
pin 1 to GND
Both outputs
OverVin Range
(5)
(6)
T
a
—
°C
StorageTemperature
Mechanical Shock
T
s
—
–40
—
—
°C
Per Mil-STD-883D, Method 2002.3
1msec, ½Sine, mounted
TBD
G’s
(7)
(7)
Mechanical Vibration
Mil-STD-883D Method 2007.2,
20-2000 Hz
Vertical
—
—
TBD
TBD
—
—
G’s
Horizontal
Weight
Flammability
—
—
Vertical/Horizontal
MeetsUL94V-O
—
34
—
grams
Notes: (1) The outputs, Vo1 and Vo2, have similar characteristics. The applicable performance parameters are defined according to output voltage.
(2) The minimum output current applies to each output. The module will operate at no load with reduced specifications.
(3) A short-circuit load fault at either output causes the module to continuously reset, affecting both outputs.
(4) The STBY* control (pin 1) has an internal pull-up, and if it is left open circuit the module will operate when input power is applied. The open-circuit voltage
is approximately the input voltage, Vin. Refer to the application notes for interface considerations.
(5) For operating temperatures below 0°C, Cin, Co1, and Co2 must have stable characteristics. Use either tantalum or Oscon® capacitors.
(6) See Safe Operating Area curves for the specific output voltage combination, or contact the factory for the appropriate derating.
(7) Only the case pins on through-hole pin configurations (N & A) must be soldered. For more information see the applicable package outline drawing.
Input/O utput Capacitors: The PT6940 series requires a 330µF electrolytic capacitor at the input and both outputs for proper operation (300µF for Oscon® or low ESR
tantalum). In addition, the input capacitance must be rated for a minimum of 1.0Arms ripple current. For transient or dynamic load applications, additional capacitance
may be required. Refer to the application notes for more information.
For technical support and more information, see inside back cover or visit www.ti.com
PT6940 Series
6-A Dual Output 5-V/3.3-V Input
Integrated Switching Regulator
Performance Characteristics; Vin =5V (See Note A)
Performance Characteristics; Vin =3.3V (See Note A)
Efficiency vs. Io1 & Io2 Load Currents
Efficiency vs. Io1 & Io2 Load Currents
100
100
95
90
95
90
PT6941
PT6942
85
85
PT6946
PT6943
80
75
70
65
60
PT6947
PT6948
80
75
70
65
60
PT6944
PT6946
PT6947
PT6948
0
1
2
3
4
5
6
0
1
2
3
4
5
6
Iout (A) [Both Outputs ]
Iout (A) [Both Outputs]
Vo1 Ripple vs. Io1 & Io2 Load Currents
Vo1 Ripple vs. Io1 & Io2 Load Currents
35
30
25
20
15
10
5
35
30
25
20
15
10
5
PT6946
PT6947
PT6948
PT6941
PT6942
PT6943
PT6944
PT6946
PT6947
PT6948
0
0
0
1
2
3
4
5
6
0
1
2
3
4
5
6
Iout (A) [Both Outputs]
Iout (A) [Both Outputs]
Vo2 Ripple vs. Io1 & Io2 Load Currents
Vo2 Ripple vs. Io1 & Io2 Load Currents
35
30
25
20
15
10
5
35
30
25
20
15
10
5
PT6941
PT6946
PT6942
PT6947
PT6948
PT6943
PT5944
PT6946
PT6947
PT6948
0
0
0
1
2
3
4
5
6
0
1
2
3
4
5
6
Iout (A) [Both Outputs]
Iout (A) [Both Outputs]
Power Dissipation Vs. Io1 & Io2 Load Currents
Power Dissipation vs. Io1 & Io2 Load Currents
5
4
3
2
1
0
5
4
3
2
1
0
0
1
2
3
4
5
6
0
1
2
3
4
5
6
Iout (A) [Both Outputs]
Iout (A) [Both Outputs]
Note A: Characteristic data has been developed from actual products tested at 25°C. This data is considered typical data for the Converter.
For technical support and more information, see inside back cover or visit www.ti.com
PT6940 Series
6-A Dual Output 5-V/3.3-V Input
Integrated Switching Regulator
Safe Operating Area Curves;Vin =3.3V/5V (See Note B)
Safe Operating Area Curves; Vin =5V (See Note B)
PT6946 (2.5V/1.8V)
PT6941 (3.3V/2.5V)
90
90
80
80
70
60
50
40
30
20
Airflow
70
60
50
40
30
20
Airflow
200LFM
120LFM
60LFM
200LFM
120LFM
60LFM
Nat conv
Nat conv
0
1
2
3
4
5
6
0
1
2
3
4
5
5
5
6
6
6
Iout (A) [Both Outputs]
Iout (A) [Both outputs]
PT6942 (3.3V/1.8V)
PT6947 (2.5V/1.5V)
90
80
70
60
50
40
30
20
90
80
70
60
50
40
30
20
Airflow
Airflow
200LFM
120LFM
60LFM
200LFM
120LFM
60LFM
Nat conv
Nat conv
0
1
2
3
4
5
6
0
1
2
3
4
Iout (A) [Both Outputs]
Iout (A) [Both Outputs]
PT6943 (3.3V/1.5V)
PT6948 (2.5V/1.2V)
90
80
70
60
50
40
30
20
90
80
70
60
50
40
30
20
Airflow
Airflow
200LFM
120LFM
60LFM
200LFM
120LFM
60LFM
Nat conv
Nat conv
0
1
2
3
4
5
6
0
1
2
3
4
Iout (A) [Both Outputs]
Iout (A) [Both Outputs]
PT6944 (3.3V/1.2V)
90
80
70
60
50
40
30
20
Airflow
200LFM
120LFM
60LFM
Nat conv
0
1
2
3
4
5
6
Iout (A) [Both Outputs]
Note B: SOA curves represent the conditions at which internal components are at or below the manufacturer’s maximum operating temperatures
For technical support and more information, see inside back cover or visit www.ti.com
Application Notes
PT6940 Series
Operating Features of the PT6940 Series
of Dual-Output Voltage Regulators
Over-Current Protection
Standby Control
The PT6940 series of regulators incorporate independent
current limit protection at both outputs (Vo1 & Vo2) with a
periodic shutdown of both outputs. Applying a load current,
in excess of the current limit threshold to either output,
results in the shutdown of both voltages after a short
period; typically 15ms. Following shutdown the module
periodically attempts to recover by executing a soft start
power-up at intervals of approximately 100ms. If the over-
current fault persists, each attempted restart will result in a
corresponding over-current trip and shutdown. During
the 15ms period prior to each successive shutdown, the
output with the load fault may not reach full regulation.
The output voltages from the PT6940 may be disabled
using the regulator’s Standby control. The standby function
is provided by the “STBY*” control (pin 1). If pin 1 is left
open-circuit the regulator operates normally, and provides
a regulated output at both Vo1 (pins 4–6) and Vo2 (pins 23–
25) whenever a valid input source voltage is applied to Vin
(pins 13–16) with respect to GND (pins 7-12 & 17–22).
Applying a low-impedance sink to ground1 at pin 1, simul-
taneously disables both regulated outputs. This places the
regulator in standby mode, and reduces the input current
drawn by the ISR to typically 10mA. The Standby control
may also be used to maintain both regulator outputs at zero
volts during the period that input power is applied.
The standby pin is ideally controlled using an open-collector
(or open-drain) discrete transistor (See Figure 2). The
open-circuit voltage is the input voltage, Vin.
Power-Up Voltage Sequencing
The output voltages from the PT6940 series regulators are
independently regulated, and internally sequenced to meet
the power-up requirements of popular microprocessors
and DSP chipsets. Figure 1 shows the output voltage wave-
forms of a PT6942 (3.3V/1.8V) after either input power is
applied, or the regulator is enabled. In this example turning
Q1 off in Figure 2, removes the low-voltage signal at pin 1
and enables the regulator. Following a delay of about 3–5ms,
Vo1 and Vo2 rise together until the lower voltage, Vo2,
reaches its regulation voltage. Vo1 then continues to rise
until both outputs reach full regulation. The total power-
up time is less than 15ms, and is relatively independent of
load, temperature, and output capacitance. The turn-off of
Q1 corresponds to the rise in VSTBY. The waveforms were
measured with a 5V input voltage, and with resistive loads
of 4A at both the Vo1 and Vo2 outputs.
Figure 2
3
26
V1 Sns
V2 Sns
Vo1
Vo2
4–6
Vo1
Vo2
Vin
13–16
Vin
PT6940
23–25
V2 Adj V1 Adj
17–22 27
STBY*
1
7–12
2
+
+
+
CIN
Co1
Co2
Q1
BSS138
Inhibit
COM
COM
Figure 1
Notes:
1.The standby control inpuNt oitscompatible with TTL or
other devices that incorporate a totem-pole output drive. Use
only a true open-collector device, preferably a discrete bipolar
transistor (or MOSFET). To ensure the regulator output is
disabled, the control pin must be pulled to less than 0.4Vdc
with a low-level 0.5mA sink to ground.
V1 (1V/Div)
V2 (1V/Div)
2
Do not use an an external pull-up resistor. The control pin
has its own internal pull-up. Adding an external pull-up
could disable the over-current protection. The open-circuit
voltage of the “STBY*” pin is the input voltage, Vin.
Vstby (5V/Div)
HORIZ SCALE (2ms/Div)
For technical support and more information, see inside back cover or visit www.ti.com
Notes
PT6940 Series
Tantalum Capacitors
Capacitor Recommendations for the
Dual-Output PT6940 Regulator Series
Tantalum type capacitors can be used for the output but only
the AVX TPS series, Sprague 593D/594/595 series or Kemet
T495/T510 series. These capacitors are recommended
over many other tantalum types due to their higher rated
surge, power dissipation, and ripple current capability. As a
caution the TAJ series by AVX is not recommended. This
series has considerably higher ESR, reduced power dissipa-
tion, and lower ripple current capability. The TAJ series is
less reliable than the AVX TPS series when determining
power dissipation capability. Tantalum or Oscon® types
are recommended for applications where ambient tem-
peratures fall below 0°C.
Input Capacitor:
The recommended input capacitance is determined by 1.0
ampere minimum ripple current rating and 330µF minimum
capacitance (300µF for Oscon® or low ESR tantalum).
Ripple current and <100mΩ equivalent series resistance
(ESR) values are the major considerations, along with tem-
perature, when designing with different types of capacitors.
Tantalum capacitors have a recommended minimum voltage
rating of twice the maximum DC voltage + AC ripple. This
is necessary to insure reliability for input voltage bus appli-
cations
Capacitor Table
Table 1 identifies the characteristics of capacitors from a
number of vendors with acceptable ESR and ripple current
(rms) ratings. The number of capacitors required at both the
input and output buses is identified for each capacitor type.
Output Capacitors: Co1/Co2
The ESR of the required capacitors, Co1 & Co2 must not be
greater than 150mΩ. Electrolytic capacitors have poor
ripple performance at frequencies greater than 400kHz
but excellent low frequency transient response. Above the
ripple frequency, ceramic capacitors are necessary to improve
the transient response and reduce any high frequency noise
components apparent during higher current excursions.
Preferred low ESR type capacitor part numbers are identified
in Table 1.
This is not an extensive capacitor list. Capacitors from other
vendors are available with comparable specifications. Those listed
are for guidance. The RMS ripple current rating and ESR
(Equivalent Series Resistance at 100kHz) are critical parameters
necessary to insure both optimum regulator performance and
long capacitor life.
Table 1: Input/Output Capacitors
Capacitor
Vendor/
Capacitor Characteristics
Quantity
Component
Series
Working
Voltage
(ESR) Equivalent
Series Resistance
85°C Maximum Ripple
Current(Irms)
Physical
Size(mm)
Input
Bus
Output
Bus
Value(µF)
Vendor Number
Panasonic
FC
25V
35V
35V
560µF
390µF
330µF
0.0065Ω
0.065Ω
0.117Ω
1205mA
1205mA
555mA
12.5x15
12.5x15
8x11.5
1
2
N/R
1
1
1
EEUFC1E561S
EEUFC1V391S
EEUFC1C331
United
16V
35V
10V
20V
330µF
470µF
330µF
150µF
0.120Ω
0.052Ω
0.025Ω
555mA
1220mA
3500mA
3200mA
8x12
10x20
10x10.5
10x10.5
N/R
1
1
1
2
LXZ16VB331M8X12LL
LXZ35VB471M10X20LL
10FS330M
Chemi-Con
LXV/FS/
LXZ
1
1
2
0.030÷2 Ω
20FS150M
35V
35V
50V
560µF
330µF
470µF
0.048Ω
0.065÷2 Ω
0.046Ω
1360mA
1020mA
1470mA
16x15
12.5x15
18x15
1
1
1
1
1
1
UPL1V561MHH6
UPL1V331MHH6
UPM1H4711MHH6
Nichicon
PL/ PM
Panasonic
FC
(Surface Mtg)
10V
35V
16V
1000µF
330µF
330µF
0.043Ω
0.065Ω
0.150Ω
1205mA
1205mA
670mA
12x16.5
12.5x16
10x10.2
1
1
N/R
1
1
1
EEVFC1A102LQ
EEVFC1V331LQ
EEVFC1C331P
Oscon- SS
SV
10V
10V
20V
330µF
330µF
150µF
0.025Ω
0.025Ω
0.024÷2 Ω
>3500mA
>3800mA
3600mA
10.0x10.5
10.3x10.3
10.3x10.3
1
1
2
1
1
2
10SS330M
10SV300M
20SV150M
SV= Surface Mount
AVX
Tantalum
TPS
10V
10V
10V
330µF
330µF
220µF
0.100÷2 Ω
0.100÷2 Ω
0.095Ω
>2500mA
>3000mA
>2000mA
7.3Lx
4.3Wx
4.1H
2
2
2
1
1
2
TPSV337M010R0100
TPSV337M010R0060
TPSV227M0105R0100
Kemet
T510/
T495
10V
10V
330µF
220µF
0.033Ω
0.07Ω÷2 =0.035Ω
1400mA
>2000mA
7.3Lx5.7W
x 4.0H
2
2
1
2
T510X337M010AS
T495X227M010AS
7.3Lx
6.0Wx
4.1H
Sprague
594D
10V
10V
330µF
220µF
0.045Ω
0.065Ω
2350mA
>2000mA
2
2
1
2
4D337X0010R2T
594D227X0010D2T
N/R –Not recommended. The voltage ratingdoes not meet the minimum operating limits.
For technical support and more information, see inside back cover or visit www.ti.com
Application Notes
PT6940 Series
Adjusting the Output Voltages of the
PT6940 Dual-Output ISRs
Each output voltage from the PT6940 series of integrated
switching regulators (ISRs) can be independently adjusted
higher or lower than the factory trimmed pre-set voltage.
The voltages, Vo1 and Vo2 may each be adjusted either up
or down using a single external resistor . Table 1 gives the
adjustment range for both Vo1 and Vo2 for each model in
Where: Vo = Original output voltage, (Vo1 or Vo2)
Va = Adjusted output voltage
Rs = The series resistance from Table 1
1
Notes:
1.Use only
a
single 1% resistor in eit(hRer) otrhRe2
1
location to adjust Vo1, and in the (R3) or R4 location to
adjust Vo2. Place the resistor as close to the module as
possible.
the series as Va(min) and Va(max). Note that Vo2 must
2
always be lower than Vo1
.
Vo1 Adjust Up: To increase the output, add a resistor R2
3
between pin 2 (Vo1 Adjust) and pins 7-12 (GND) .
2.Vo 2 must always be at least 0.3V lower than Vo1.
Vo1 Adjust Down: Add a resistor (R1), between pin 2
(Vo1 Adjust) and pin 3 (Vo1 Sense).
3.When adjusting Vohigher than the factory pre-set
1
output voltage the minimum input voltage must be
revised as follows.
Vo2 Adjust Up: Add a resistor R4 between pin 27
(Vo2 Adjust) and pins 17–22 (GND).
Vo1 =3.3V:
Vin(min) = (Vo1 + 1)V or 4.5V, whichever is greater.
Vo2 Adjust Down: Add a resistor (R3) between pin 27
(Vo2 Adjust) and pin 26 (Vo2 Sense).
Vo1 =2.5V:
Vo1 =2.5V is the maximum output voltage allowed for
operation off a 3.3V input bus. If Vo1 is adjusted above
2.5V, the input voltage must be a minimum of 4.5V.
Refer to Figure 1 and Table 2 for both the placement and value of
the required resistor.
4.Vo 1 and Vo2 may be adjusted down to an alternative bus
voltage by making, (R1) or (R3) respectively, a zero ohm
link. Refer to the Table 1 footnotes for guidance.
The adjust up and adjust down resistor values can also be
calculated using the following formulas. Be sure to select
the correct formula parameter from Table 1 for the output
and model being adjusted.
5.Never connect capacitors to either theAdVjuost or
1
Vo2 Adjust pins. Any capacitance added to these control
pins will affect the stability of the respective regulated
output.
10 (Va – 0.9 )
Vo – Va
(R1) or (R3)
=
– Rs
kΩ
9
R2 or R4
=
– Rs
kΩ
Va – Vo
Figure 1
Vo1 Sense
Vo2 Sense
3
26
V1 Sns
V2 Sns
Vo1
4–6
Vo1
Vo2
VIN
13–16
Vin
PT6940
Vo2
23–25
V2 Adj V1 Adj
27
7–12
17–22
2
(R1)
(R3)
+
+
+
CIN
Co1
Co2
L
O
A
D
L
O
A
D
R2
R4
GND
GND
For technical support and more information, see inside back cover or visit www.ti.com
Application Notes
PT6940 Series
Table 1
ADJUSTMENT RANGE AND FORMULA PARAMETERS
Vo1 Bus
Vo2 Bus (2)
PT6941
(R3)/R4
Series Pt #
Adj. Resistor
PT6941/42/43/44
(R1)/R2
PT6946/47/48
(R1)/R2
PT6942/46
(R3)/R4
PT6943/47
(R3)/R4
PT6944/48
(R3)/R4
Vo(nom)
Va(min)
Va(max)
Rs (kΩ)
3.3V
2.5V
2.5V
1.8V
1.5V
1.2V
1.15V
1.5V †
29.4
*
*
*
*
*
2.5V
1.8V
1.8V
1.5V
1.2V
3.5V
20.0
2.5V
13.0
3.1V
13.0
2.2V
20.0
2.4V
10.0
Ref. Note 4:
* (R1) = Zero-ohm link
†(R3) = Zero-ohm link
Table 2
ADJUSTMENT RESISTOR VALUES
Vo1 Bus
Vo2 Bus
Series Pt #
Adj. Resistor
PT6941/42/43/44
(R1)/R2
PT6946/47/48
(R1)/R2
Series Pt #
Adj. Resistor
PT6941
(R3)/R4
PT6942/46
(R3)/R4
PT6943/47
(R3)/R4
PT6944/48
(R3)/R4
Vo(nom)
3.3V
2.5V
Vo(nom)
2.5V
1.8V
1.5V
1.2V
Va(req’d)
Va(req’d)
1.15
(20.6)kΩ
1.8
(0.0)
1.2
1.25
1.3
1.35
1.4
1.45
1.5
1.55
1.6
1.65
1.7
1.75
1.8
1.85
1.9
1.95
2.0
2.05
2.1
2.15
2.2
2.25
2.3
2.35
2.4
2.45
2.5
(0.0)kΩ
(4.0)kΩ
(10.0)kΩ
(20.0)kΩ
(40.0)kΩ
(100.0)kΩ
1.85
1.9
1.95
2.0
2.05
2.1
2.15
2.2
2.25
2.3
2.35
2.4
2.45
2.5
2.55
2.6
2.65
2.7
2.75
2.8
2.85
2.9
2.95
3.0
(1.6)kΩ
(3.7)kΩ
(6.1)kΩ
(9.0)kΩ
(12.6)kΩ
(17.0)kΩ
(22.7)kΩ
(30.3)kΩ
(41.0)kΩ
(57.0)kΩ
(83.7)kΩ
(137.0)kΩ
(297.0)kΩ
151.0kΩ
60.6kΩ
30.6kΩ
15.6kΩ
6.6kΩ
(0.0)kΩ
(6.0)kΩ
(15.0)kΩ
(30.0)kΩ
(60.0)kΩ
(150.0)kΩ
0.0kΩ
170.0kΩ
80.0kΩ
50.0kΩ
35.0kΩ
26.0kΩ
19.6kΩ
15.7kΩ
12.5kΩ
10.0kΩ
8.0kΩ
6.4kΩ
5.0kΩ
3.9kΩ
2.9kΩ
2.0kΩ
1.3kΩ
0.6kΩ
0.0kΩ
(0.0)kΩ
(1.6)kΩ
(3.7)kΩ
(6.1)kΩ
(9.0)kΩ
(12.6)kΩ
(17.0)kΩ
(22.7)kΩ
(30.3)kΩ
(41.0)kΩ
(57.0)kΩ
(83.7)kΩ
(137.0)kΩ
(297.0)kΩ
160.0kΩ
70.0kΩ
40.0kΩ
25.0kΩ
16.0kΩ
10.0kΩ
5.7kΩ
(0.0)kΩ
(2.0)kΩ
(4.3)kΩ
167.0kΩ
77.0kΩ
47.0kΩ
32.0kΩ
23.0kΩ
#
#
#
#
#
(6.9)kΩ
(10.0)kΩ
(13.6)kΩ
(18.0)kΩ
(23.3)kΩ
(30.0)kΩ
(38.6)kΩ
(50.0)kΩ
(90.0)kΩ
(210.0)kΩ
2.5kΩ
3.1
3.2
3.3
2.55
2.6
2.65
2.7
2.75
2.8
2.85
2.9
167.0kΩ
77.0kΩ
47.0kΩ
32.0kΩ
23.0kΩ
17.0kΩ
12.7kΩ
9.5kΩ
3.4
3.5
3.6
3.7
70.0kΩ
25.0kΩ
10.0kΩ
2.5kΩ
2.95
3.0
7.0kΩ
5.0kΩ
3.1
2.0kΩ
R1/R3 = (Blue), R2/R4 = Black
# See Note 3
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