PT7745N [TI]
20-A Programmable Integrated Switching Regulator; 20 -A可编程集成开关稳压器
| 型号： | PT7745N |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | 20-A Programmable Integrated Switching Regulator |
| 文件： | 总9页 (文件大小：183K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PT7711—5V
20-A Programmable
Integrated Switching Regulator
SLTS087A
(Revised 6/27/2002)
Features
• 5V Input Voltage
• 27-Pin Space-Saving Package
• 20-A Output Current
• 5-bit Programmable Output:
1.3V to 3.5V
• Solderable Copper Case
• Compatible with PT7745
20A “Current Booster”
• High Efficiency (93%)
• Differential Remote Sense
• Over-Current Protection
Ordering Information
Description
Pin-Out Information
Pin Function
PT 7711o = 1.3 to 3.5 Volts
PT 7745o = 20-A Booster *
Pin Function
The PT7711 Excalibur™ power module
is a 20-A integrated switching regula-
tor (ISR) housed a 27-pin space-saving
copper package. Operating from a +5V
input bus, the PT7711 produces a tightly
regulated output voltage that is program-
mable over the range, 1.3V to 3.5V. The
output voltage is selected via 5-bit input
code, which is compatible with the VRM
specifications defined by Intel®.
This regulator is most suitable for
microprocessor and DSP applications
requiring core or I/O logic supply volt-
ages as low as 1.3V.
15 GND
16 GND
17 GND
18 GND
19 GND
1
VID0
VID1
VID2
VID3
STBY *
VID4
2
* Consult the related application note for
information on current booster operation.
3
4
5
PT Series Suffix
(PT1234x)
20
21
22
23
24
25
V
out
V
out
V
out
V
out
V
out
V
out
6
Case/Pin
O rder
Package
7
V
in
V
in
V
in
V
in
V
in
Configuration Suffix
Code
†
8
9
Vertical
Horizontal
SMD
N
A
C
(ENE)
(ENF)
(ENG)
10
11
†
Previously known as package styles
1420 & 1430
26 Rem Sense Vout
12 Rem Sense Gnd
13 GND
27 Sync Out
(Reference the applicable package code
drawing for the dimensions and PC
board layout)
The PT7711 regulator incorporates
output short-circuit protection, and a
differential remote sense to compensate
for voltage drop between the regulator
and load.
14 GND
For STBY* pin: open =output enabled
ground =output disabled.
Standard Application
PROGRAMMING PINS
VID0
VID1
VID2
VID3
REMOTE SENSE(+)
VID4
6
4
3
2
1
26
12
L1
1µH
VOUT
7-11
20-25
VIN
PT7711
L
O
A
D
+
27
5
13-19
+
CIN
COUT
SYNC OUT
GND
GND
REMOTE SENSE(–)
STBY*
Cin = Required 1500µF electrolytic
Cout = Required 330µF electrolytic
L1 = Optional 1µH input choke
For technical support and more information, see inside back cover or visit www.ti.com
PT7711—5V
20-A Programmable
Integrated Switching Regulator
PT7710 Product Family Comparison
Programming Information
VID4=1
Vout
VID4=0
Vout
Input
Adjust
Description Method
Output
Range
VID3 VID2 VID1 VID0
Product
Voltage
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
2.00V
2.10V
2.20V
2.30V
2.40V
2.50V
2.60V
2.70V
2.80V
2.90V
3.00V
3.10V
3.20V
3.30V
3.40V
3.50V
1.30V
1.35V
1.40V
1.45V
1.50V
1.55V
1.60V
1.65V
1.70V
1.75V
1.80V
1.85V
1.90V
1.95V
2.00V
2.05V
PT 7711
5V
3.3V
3.3V
3.3V
5V
VID
VID
5-Bit
4-Bit
4-Bit
5-Bit
5-Bit
5-Bit
—
1.3V– 3.5V
1.3V– 2.05V
1.8V– 2.55V
0.8V–1.575V
1.075V–1.85V
1.075V–1.85V
—
PT 7712
PT 7713
PT 7714
PT 7715
PT 7716
PT 7744
PT 7745
VID
VID
VID
3.3V
3.3V
5V
VID
Booster
Booster
—
—
Logic 0 = Pin 12 potential (Rem Sense Gnd)
Logic 1 = Open circuit (no pull-up resistors)
VID 3 & VID4 must not be changed while the unit is operating.
Specifications (Unless otherwise stated, Ta =25°C, Vin =5V, Cin =1,500µF, Cout =330µF, Vo =3.3V, and Io =Iomax)
PT7711
Characteristics
Symbols
Conditions
Min
Typ
Max
Units
(1)
(1)
Output Current
Io
Ta = +25°C, Natural convection
Ta = +60°C, 200 LFM, pkg N
0.1
0.1
—
—
20
20
A
Input Voltage Range
Set-Point Voltage Tolerance
Temperature Variation
Line Regulation
Vin
Over Io range
4.5
—
—
—
—
—
10
5.5
V
(2)
Vo tol
Regtemp
Regline
Regload
∆Vo tol
All output voltages
–40°C ≤Ta ≤+85°C, Io =Iomin
Over Vin range
25
mV
%Vo
mV
mV
0.75
—
—
—
5
5
Load Regulation
Over Io range
Total Output Voltage Variation
Includes set-point, line, load,
—
1
3
%Vo
%
–40°C ≤Ta ≤+85°C
Efficiency
η
Io =10A
Vo =3.3V
Vo =2.5V
Vo =1.8V
—
—
—
93
90
87
—
—
—
Io =20A
Vo =3.3V
Vo =2.5V
Vo =1.8V
—
—
—
90
85
80
—
—
—
%
Vo Ripple (pk-pk)
Vr
20MHz bandwidth
—
—
35
50
—
—
mVpp
µSec
mV
A
Transient Response
ttr
1A/µs load step, 50% and 100% Iomax
Vo over/undershoot
Vos
ITRIP
ƒs
—
100
—
Over-Current Threshold
Switching Frequency
Reset followed by auto-recovery
Over Vin range
—
32
—
300
350
400
kHz
STBY* Input Requirements
Input High Voltage
(3)
Open
0.8
—
VIH
VIL
IIL
Referenced to GND
2.0
—
—
V
Input Low Voltage
-0.2
Input Low Current
Standby Input Current
External Capacitance
Operating Temperature Range
Storage Temperature
Mechanical Shock
Pin 5 to GND
Pin 5 to GND
—
0.3
30
—
—
—
mA
mA
µF
°C
°C
Iin standby
—
—
(4)
Cout
Ta
330
–40
-40
15,000
(5)
Over Vin Range
—
+85
Ts
+125
—
Per Mil-STD-883D, Method 2002.3
1 msec, Half Sine, mounted to a fixture
—
500
—
G’s
(6)
15 (6)
Mechanical Vibration
—
Mil-STD-883D, Method 2007.2 Suffixes A, N
—
—
20
—
—
G’s
20-2000 Hz
Suffix C
Weight
—
—
Vertical/Horizontal
Materials meet UL 94V-0
—
36
—
grams
Flammability
Notes: (1) ISR-will operate down to no load with reduced specifications.
(2) If the remote sense ground is not used, pin 12 must be connected to pin 13 for optimum output voltage accuracy.
(3) The STBY* control (pin 5) has an internal pull-up. If it is left open-circuit, the module will operate when input power is applied. A low-leakage (<1µA)
MOSFET must be used to control this pin. The open-circuit voltage may be as high as Vin.
(4) For operation below 0°C, Cin and Cout must have stable characteristics. Use either low ESR tantalum or Oscon® capacitors.
(5) See safe Operating Area curves or consult factory for the appropriate derating.
(6) The case pins on the through-hole package types (suffixes N & A) must be soldered. For more information see the applicable package outline drawing.
External Capacitors: The regulator require a minimum output capacitance of 330µF for proper operation. An input capacitance of 1500µF is also required. This
must be rated for a minimum of 1.4Arms of ripple current. For transient or dynamic load applications, additional capacitance may be required. For further informa-
tion refer to the application note regarding capacitor selection for this product.
Input Filter: An input filter inductor is optional for most applications. The inductor must be sized to handle 20ADC with a typical value of 1µH.
For technical support and more information, see inside back cover or visit www.ti.com
Typical Characteristics
PT7711—5V
20-A Programmable
Integrated Switching Regulator
Performance Characteristics, Vin =5V (See Note A)
Safe Operating Area Curves (See Note B)
PT7711, VIN =5VDC
Efficiency vs Output Current
90
80
70
60
50
40
30
20
100
90
80
70
60
50
Airflow
VOUT
3.3V
200LFM
120LFM
60LFM
2.5V
1.8V
Nat conv
0
4
8
12
16
20
0
4
8
12
16
20
Iout (A)
Iout (A)
Ripple vs Output Current
50
40
30
20
10
0
VOUT
3.3V
2.5V
1.8V
0
4
8
12
16
20
Iout (A)
Power Dissipation vs Output Current
10
8
VOUT
6
1.8V
2.5V
3.3V
4
2
0
0
4
8
12
16
20
Iout (A)
Note A: All characteristic data in the above graphs has been developed from actual products tested at 25°C. This data is considered typical for the ISR.
Note B: SOA curves represent operating conditions at which internal components are at or below manufacturer’s maximum rated operating temperatures.
For technical support and more information, see inside back cover or visit www.ti.com
Application Notes
PT7710 Family, PT7744/PT7745
Tantalum Characteristics
Capacitor Recommendations for the PT7710
Series of Regulators and Current Boosters
Tantalum capacitors with a minimum 10-V rating are
recommended on the output bus, but only the AVX TPS
Series, Sprague 594/595 Series, or Kemet T495/T510
Series. These AVX, Sprague, and Kemet capacitors are
specified over other types due to their higher surge cur-
rent, excellent power dissipation and ripple current ratings.
As a caution, the TAJ Series by AVX is not recommended.
This series exhibits considerably higher ESR, reduced power
dissipation and lower ripple current capability. The TAJ
series is also less reliable compared to the TPS series when
determining power dissipation capability.
Input Capacitors
The recommended input capacitance is determined by the
1.4 ampere minimum ripple current rating and 1500µF
minimum capacitance. Capacitors listed below must be
rated for a minimum of twice (2×) the input voltage with
+5V operation. Ripple current and ≤100mΩ Equivalent
Series Resistance (ESR) values are the major consider-
ations along with temperature when selecting the proper
capacitor.
Output Capacitors
Capacitor Table
The minimum required output capacitance is 330µF with
a maximum ESR less than or equal to 100mΩ. Failure to
observe this requirement may lead to regulator instability or
oscillation. Electrolytic capacitors have poor ripple perfor-
mance at frequencies greater than 400kHz, but excellent low
frequency transient response. Above the ripple frequency
ceramic decoupling capacitors are necessary to improve the
transient response and reduce any microprocessor high
frequency noise components apparent during higher current
excursions. Preferred low ESR type capacitor part numbers
are identified in the Table 1-1 below.
Table 1-1 identifies the characteristics of capacitors from a
number of vendors with acceptable ESR and ripple current
(rms) ratings. The suggested minimum quantities per
regulator for both the input and output buses are identified.
This is not an extensive capacitor list. Capacitors from
other vendors are available with comparible specifications.
The RMS ripple current rating and ESR (Equivalent Series
Resistance at 100kHz) are the critical parameters necessary
to insure both optimum regulator performance and long
capacitor life.
Table 1-1 Capacitors Characteristic Data
Capacitor
Vendor/
Series
Capacitor Characteristics
Quantity
Working
Voltage
Value(µF)
(ESR) Equivalent
Series Resistance
105°C Maximum
Ripple
Physical
Size(mm)
Input
Bus
Output
Bus
Vendor Number
Current(Irms)
Panasonic
FC (SMT)
16V
35V
2200
330
0.038Ω
0.065Ω
2000mA
1205mA
18x16.5
12.5x16.5
1
1
1
EEVFC1C222N
EEVFC1V331LQ
FC (Radial)
10V
16V
560
1800
0.090Ω
0.032Ω
755mA
2000mA
10x12.5
18x15
1
1
EEUFC1A561
EEUFC1C182S
1
1
United
Chemi -Con
LFZ Series
25V
16V
16V
330
1500
470
0.090Ω
0.038Ω
0.090Ω
760mA
1660mA
760mA
10x12.5
12.5x20
10x12.5
1
1
1
LXZ25VB331M10X12LL
LXZ16VB222M12X20LL
LXZ16VB471M10X12LL
Nichicon
PL Series
PM Series
10V
10V
25V
680
1800
330
0.090Ω
0.044Ω
0.095Ω
770mA
1420mA
750mA
10x15
16x15
10x15
1
1
1
UPL1A681MHH6
UPL1A182MHH6
UPL1E331MPH6
1
Oscon
SS (Radial)
SVP (SMT)
10V
10V
330
330
0.025Ω÷4 =0.006Ω
0.02Ω÷4 =0.005Ω
>9800mA
>9800mA
10x10.5
9x8.3
4
4
N/R
10SS330M
(Note) 10SVP330M
AVX
Tanatalum
TPS- Series
10V
10V
330
330
0.1Ω÷5 =0.02Ω
0.06Ω
3500mA
1826mA
7.3Lx
4.3Wx
4.1H
5
5
1
1
TPSV337M010R0100
TPSV337M010R0060
Sprague
Tantalum
595D/594D
10V
10V
330
680
0.045Ω÷4 =0.011Ω
0.09Ω
>4500mA
>1660mA
7.3L x
5.7W x
4.0H
5
2
1
1
594D337X0010R2T
595D687X0010R2T
(Surface Mount)
Kemet
10V
10V
330
220
0.035Ω
2000mA
4.3Wx7.3L
x4.0H
5
6
1
2
510X337M010AS
Tantalum
T510/T495
Series
0.07Ω÷2 =0.035Ω
>2000mA
T495X227M010AS
(Surface Mount)
Sanyo Poscap
TPB
10V
220
0.04Ω
3000mA
7.2L x
4.3W x
3.1H
6
2
10TPB220M
(Surface Mount)
Note: (N/R) is not recommended for this application, due to extremely low Equivalent Series Resistance (ESR)
For technical support and more information, see inside back cover or visit www.ti.com
Application Notes
PT7710 Series, PT7744, PT7745
Increasing the Output of the PT7710 Family of
ISRs with a 20-A Compatible Current Booster
Notes:
1. Each booster requires the same amount of input and
output capacitance as recommended for a stand-alone
regulator. Consult the individual data sheet of the
applicable regulator, and the related application note
regarding capacitor selection for this product family.
The output of PT7710 family of regulators (PT7711–
PT7716) can produce an additional 20-A output using a
compatible current booster module. Two booster modules
are available. They are the PT7744 and PT7745, which
are compatible with regulators that operate off 3.3-V
or 5-V input buses respectively. Refer to Table 2-1 for
regulator/booster compatiblity.
2. The 1-µH filter choke located at the input of each
regulator and booster module (Lin) is optional for most
applications. If specified, each inductor must be sized
to handle 20ADC at full output load.
The booster modules are controlled directly by the regu-
lator and effectively add a parallel output stage. They
operate sychronously, to provide a low-noise solution.
Up to two booster modules can be connected to a PT771x
regulator. Each booster added increases the regulator’s
output current by 20A, for up to 60A of output current.
3. The pin-out of the current booster modules include a
number pins identified, “No Connect” (see Table 2-2).
These pins are not connected internally to the module
but must be soldered to a pad to preserve the unit’s
mechanical integrity.
Current boosters are not stand-alone products, and can
only operate with a regulator. They are housed in the same
package as the regulator, and share the same mechanical
outline. Except for an increase in output current, the
overall performance of a regulator/booster combination
is identical to that of a stand-alone regulator. For more
details refer to the applicable regulator specifications.
4. A similar PCB footprint and trace layout between the
regulator and each booster will facilitate current sharing
between all modules.
Table 2-2; Booster Pin-Out Information
Pin Function
Pin Function
10 Vin
11 Vin
12 No Connect
13 GND
14 GND
15 GND
16 GND
17 GND
18 GND
Pin Function
19 GND
20 Vout
Table 2-1; Booster Compatibility
1
2
3
4
5
6
7
8
9
No Connect
No Connect
No Connect
No Connect
No Connect
No Connect
Vin
P7744 Booster
(3.3V Input Bus)
PT7745 Booster
(5V Input Bus)
Regulator
PT7711
PT7712
PT7713
PT7714
PT7715
PT7716
21 Vout
•
22 Vout
23 Vout
•
•
•
24 Vout
25 Vout
Vin
Vin
26 No Connect
27 Sync In
•
•
Figure 1-1; Current Booster Application Schematic
PROGRAMMING PINS
VID0
VID1
VID2
VID3
VID4
REMOTE SENSE (+)
6
4
3
2
1
26
VID4
-
VID0
SNS(+)
LIN
VO U T
7-11
20-25
VIN
VIN
VO
PT771x
1µH
Synch
Out
+
+
STBY
GND
13-19
SNS(-)
12
C IN
C O U T
LOAD
5
27
G N D
G N D
STBY*
REMOTE SENSE (–)
27
Synch In
LIN
PT7744/45
Booster
7-11
20-25
VO
VIN
1µH
+
+
GND
C IN
C O U T
13-19
For technical support and more information, see inside back cover or visit www.ti.com
Application Notes
PT7710 Family
Using the Standby Function on the PT7710
Excalibur™ Series of 20-A ISRs
Figure 3-1
For applications requiring On/Off control of the output
voltage, the PT7710 family of Excalibur ISRs incorpo-
rate a standby function. This feature may be used for
power-up/shutdown sequencing, or to change the output
voltage while input power is applied. See related notes:
“Pin-Coded Output Voltage Adjustment of the PT7710
Excalibur™ Series of 20-A ISRs.”
6
4
3
2
1
26
VID4
-
VID0
Rem Sns (+)
20-25
7-11
Vin
Vo
5V
V o =3.3V
PT7711
Synch
Out
STBY
5
GND
13-19
Rem Sns (–)
27
12
The standby function is provided by the STBY* control,
pin 5. If pin 5 is left open-circuit the regulator operates
normally, providing a regulated output whenever a valid
supply voltage is applied to Vin (pins 7-11) with respect to
L
O
A
D
+
+
C in
C out
Q1
BSS138
Inhibit
C O M
1
GND (pins 13-19). Connecting pin 5 to ground will set
2
the regulator output to zero volts . This places the regu-
C O M
lator in standby mode, and reduces the input current to
typcially 30mA (60mA max). If a ground signal is applied
to pin 5 prior to power-up, the regulator output will be
held at zero volts during the period that input power is
applied.
Turn-On Time: Turning Q1 in Figure 3-1 off, removes the
low-voltage signal at pin 5 and enables the output. After
a delay of approximately 10ms, the output voltage of a
PT771x regulator rises to full regulation within 30ms 3.
Figure 3-2 shows the typical output voltage waveform of
a PT7711 following the turn-off of Q1 at time t =0 secs.
The output voltage in Figure 3-1 is set to 3.3V by connecting
VID0 (pin 1), VID2 (pin 3), and VID3 (pin 4) to the ‘Rem
The standby input must be controlled with an open-
collector (or open-drain) discrete transistor (See Figure 1).
Table 3-1 gives the input requirements.
Table 3-1 Standby Control Input Requirements (1, 2)
Parameter
Min
Typ
Max
1
Enable
Disable
2V
–0.2V
Open Cct.
0.8V
*
Sense Gnd’ (pin 12) . The waveform was measured with a
+5V input source voltage, and 10-A resistive load.
Istby (low)
Vstby (o/c)
0.5mA
Vin
Notes:
Figure 3-2
1. The Standby input on the PT7710 regulator family must
be controlled using an open-collector (or open-drain)
discrete transistor. Do Not use a pull-up resistor. The
control input has an open-circuit voltage equal to Vin. To
set the regulator output to zero, the control pin must be
“pulled” to less than 0.8Vdc with a 0.5mA sink to ground.
Vo (2V / Div)
2. When placed in the standby mode, the regulator output
discharges the output capacitance with a low impedance to
ground.
Iin 10A / Div)
3. The turn-off time of Q1, or rise time of the standby input
is not critical with the PT7710 family. Turning Q1 off
slowly, over periods up to 100ms, will not affect regulator
operation. However, a slow turn-off time will increase
both the initial delay and rise-time of the output voltage.
0
5
10
15
20
25
30
t (milli - secs)
*
Consult the data sheet for details on other VID codes.
For technical support and more information, see inside back cover or visit www.ti.com
Application Notes
PT7710 Family
Pin-Coded Output Voltage Adjustment of the
4. If active devices are used to ground the voltage control
pins, low-level open drain MOSFET devices should be
used over bipolar transistors. The inherent Vce(sat) in
bipolar devices introduces errors in the device’s internal
divider network. Discrete transistors such as the BSS138,
2N7002, or IRLML2402 are examples of appropriate
devices.
PT7710 Excalibur™ Series of 20-A ISRs
The PT7710 Excalibur™ family of converters incorporate
a pin-coded control to adjust the output voltage. This
feature uses the control pins VID0–VID4 (pins 1–6).
When the control pins are left open-circuit, the ISR
output regulates at its default output voltage. Each
control pin is internally connected to a precision resistor,
which when grounded applies a weighted change to the
output voltage. By selectively grounding VID0–VID4,
the output voltage of these ISRs can be programmed in
incremental steps over the specified output voltage range.
The program codes and output voltage range offered by
these ISRs are compatible with the Voltage ID specifica-
tions defined by Intel Corporation for VRMs (voltage
regulator modules). The codes are used by both the
Pentium® and Athlon® microprocessors. Refer to
Figure 4-1 for the connection schematic, and the respective
device Data Sheet for the programming code information.
Active Voltage Programming:
Special precautions should be taken when making changes
to the output voltage progam code while the unit is
powered. This activity can induce current transients
through the device as a result of the electrolytic output
capacitors being either charged or discharged to the new
output voltage set-point. The transient current can be
minimized by making only incremental changes to the
binary code, i.e. one LSB at a time. A minimum of 100µs
settling time between each program state is also recom-
mended. Making non-incremental changes to VID3 or
VID4 is discouraged.
When active devices are used to program the output
voltage, their state should be asserted prior to the input
power being applied. An alternative is to pull pin 5 (STBY)
control to GND during the application of input voltage,
then assert the required program code and release pin 5.
The module will then intiate a soft-start power-up to the
desired program voltage. For more information on the
use of the Standby function, consult the related applica-
tion note, “Using the Standby Function on the PT7710
Excalibur™ Series of 20-A ISRs.”
Notes:
1. The programming convention is as follows:-
Logic 0:
Logic 1:
Connect to pin 12 (Remote Sense Ground).
Open circuit/open drain (See notes 2, & 4)
2. Do not connect pull-up resistors to the voltage
programming pins.
3. Use pin 12 (Remote Sense Ground) as the logic “0”
reference. While the regular ground (pins 13-19) can also
be used for programming, doing so will degrade the load
reglation of the product. If the remote sense ground is
not used, pin 12 must be connected to pin 13 for
optimum output voltage accuracy.
Figure 4-1
6
4
3
2
1
26
VID4 - VID0
SNS(+)
20-25
7-11
Vin
Vo
+5V
PT7710
1µH
Synch
Out
(Optional)
STBY
5
GND
13-19
SNS(-)
12
27
L
O
A
D
+
+
Cin
Cout
STBY
COM
For technical support and more information, see inside back cover or visit www.ti.com
PACKAGE OPTION ADDENDUM
www.ti.com
13-May-2005
PACKAGING INFORMATION
Orderable Device
PT7711A
Status (1)
NRND
NRND
NRND
NRND
NRND
NRND
Package Package
Pins Package Eco Plan (2) Lead/Ball Finish MSL Peak Temp (3)
Qty
Type
Drawing
SIP MOD
ULE
ENF
27
27
27
27
27
27
10
10
10
TBD
TBD
TBD
TBD
TBD
TBD
Call TI
Call TI
Call TI
Call TI
Call TI
Call TI
Level-1-215C-UNLIM
Level-3-215C-168HRS
Level-1-215C-UNLIM
Call TI
PT7711C
SIP MOD
ULE
ENG
ENE
ENF
ENG
ENE
PT7711N
SIP MOD
ULE
PT7745A
SIP MOD
ULE
PT7745C
SIP MOD
ULE
Call TI
PT7745N
SIP MOD
ULE
Call TI
(1) The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in
a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
Eco Plan
-
The planned eco-friendly classification: Pb-Free (RoHS) or Green (RoHS
&
no Sb/Br)
-
please check
http://www.ti.com/productcontent for the latest availability information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements
for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered
at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame
retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material)
(3)
MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder
temperature.
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In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI
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Addendum-Page 1
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