PTH05T210W
www.ti.com ...................................................................................................................................................... SLTS263I – AUGUST 2007 – REVISED MARCH 2009
30-A, 5-V INPUT, NON-ISOLATED,
WIDE OUTPUT ADJUST, POWER MODULE w/ TURBOTRANS™
FEATURES
1
•
•
•
•
•
•
•
•
•
2
•
•
Up to 30-A Output Current
4.5-V to 5.5-V Input Voltage
Wide-Output Voltage Adjust (0.7 V to 3.6 V)
Efficiencies up to 96%
±1.5% Total Output Voltage Variation
On/Off Inhibit
Differential Output Voltage Remote Sense
Adjustable Undervoltage Lockout
Output Overcurrent Protection
(Nonlatching, Auto-Reset)
Operating Temperature: –40°C to 85°C
POLA™ Compatible
•
•
•
•
•
TurboTrans™ Technology
Designed to meet Ultra-Fast Transient
Requirements up to 300 A/µs
Auto-Track™ Sequencing
Multi-Phase, Switch-Mode Topology
Safety Agency Approvals:
– UL/IEC/CSA-22.2 60950-1
APPLICATIONS
•
•
•
Complex Multi-Voltage Systems
Microprocessors
Bus Drivers
DESCRIPTION
The PTH05T210W is a high-performance 30-A rated, non-isolated power module which utilizes a multi-phase,
switch-mode topology. This module represents the 2nd generation of the PTH series power modules which
includes a reduced footprint and improved features.
Operating from an input voltage range of 4.5 V to 5.5 V, the PTH05T210W requires a single resistor to set the
output voltage to any value over the range, 0.7 V to 3.6 V. The module uses double-sided surface mount
construction to provide a low profile and compact footprint. Package options include both through-hole and
surface mount configurations that are lead (Pb) – free and RoHS compatible.
A new feature included in this 2nd generation of PTH modules is TurboTrans™ technology (patent pending).
TurboTrans allows the transient response of the regulator to be optimized externally, resulting in a reduction of
output voltage deviation following a load transient and a reduction in required output capacitance. This feature
also offers enhanced stability when used with ultra-low ESR output capacitors.
The PTH05T210W incorporates a comprehensive list of standard features. They include on/off inhibit, a
differential remote output voltage sense which ensures tight load regulation, and an output overcurrent and
overtemperature shutdown to protect against load faults. A programmable undervoltage lockout allows the
turn-on voltage threshold to be customized. AutoTrack™ sequencing is a feature which simplifies the
simultaneous power-up and power-down of multiple modules in a power system by allowing the outputs to track
a common voltage.
1
2
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
POLA, TurboTrans, Auto-Track, AutoTrack, TMS320 are trademarks of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2007–2009, Texas Instruments Incorporated
PTH05T210W
SLTS263I – AUGUST 2007 – REVISED MARCH 2009 ...................................................................................................................................................... www.ti.com
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
Track
TurboTranst
14
VI
2,6
13
Track
TT
+Sense
VI
PTH05T210
Inhibit
1
GND
3,4
CI
1000 µF
(Required)
5, 9
+Sense
VO
11
INH/UVLO
−Sense
GND
+
RUVLO
1%
0.05 W
(Opional)
VO
10
RTT
1%
0.05 W
(Optional)
7,8
VOAdj
12
RSET
1%
0.05 W
(Required)
+
L
O
A
D
CO
470 µF
(Required)
−Sense
GND
GND
UDG−05097
A.
RSET is required to set the output voltage higher than 0.7 V. See the Electrical Characteristics table.
ORDERING INFORMATION
For the most current package and ordering information, see the Package Option Addendum at the end of this datasheet, or see
the TI website at www.ti.com.
2
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DATASHEET TABLE OF CONTENTS
DATASHEET SECTION
PAGE NUMBER
ENVIRONMENTAL AND ABSOLUTE MAXIMUM RATINGS
3
ELECTRICAL CHARACTERISTICS TABLE (PTH05T210W)
4
TERMINAL FUNCTIONS
6
TYPICAL CHARACTERISTICS (VI = 5V)
7
ADJUSTING THE OUTPUT VOLTAGE
8
INPUT & OUTPUT CAPACITOR RECOMMENDATIONS
10
TURBOTRANS™ INFORMATION
14
UNDERVOLTAGE LOCKOUT (UVLO)
19
SOFT-START POWER-UP
20
REMOTE SENSE
20
OUTPUT INHIBIT
21
OVER-CURRENT PROTECTION
21
OVER-TEMPERATURE PROTECTION
22
AUTO-TRACK SEQUENCING
22
TAPE & REEL AND TRAY DRAWINGS
25
ENVIRONMENTAL AND ABSOLUTE MAXIMUM RATINGS
(Voltages are with respect to GND)
Signal input voltage
Track control (pin 14)
UNIT
UNIT
–0.3 to VI + 0.3
V
TA
Operating temperature range Over VI range
Twave
Wave soldering temperature
Surface temperature of module body or pins
(5 seconds maximum)
Treflow
Solder reflow temperature
Surface temperature of module body or pins
Tstg
Storage temperature
Storage temperature of module removed from shipping package
Tpkg
Packaging temperature
Shipping Tray or Tape and Reel storage or bake temperature
45
Mechanical shock
Per Mil-STD-883D, Method 2002.3 1 msec, sine, mounted
250
Mechanical vibration
Mil-STD-883D, Method 2007.2 20-2000 Hz
15
Weight
Flammability
(1)
–40 to 85
PTH05T210WAH
PTH05T210WAD
260
PTH05T210WAS
235 (1)
PTH05T210WAZ
(1)
260
°C
–55 to 125
8.5
G
grams
Meets UL94V-O
During reflow of surface mount package version do not elevate peak temperature of the module, pins or internal components above the
stated maximum.
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ELECTRICAL CHARACTERISTICS
TA =25°C, VI = 5 V, VO = 3.3 V, CI = 1000 µF, CO = 470 µF OS-CON, and IO = IO max (unless otherwise stated)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
25°C, natural convection
0
30
60°C, 200 LFM
0
30
UNIT
IO
Output current
VI
Input voltage range
Over IO range
4.5
5.5
V
VOADJ
Output voltage adjust
range
Over IO range
0.7
3.6
V
Set-point voltage tolerance
VO
η
–40°C < TA < 85°C
Line regulation
%Vo
Over VI range
±4
mV
Load regulation
Over IO range
±7
Total output variation
Includes set-point, line, load, –40°C ≤ TA ≤ 85°C
IO = 26 A
RSET = 1.62 kΩ, VO = 3.3 V
95%
RSET = 5.23 kΩ, VO = 2.5 V
94%
RSET = 12.7 kΩ, VO = 1.8 V
92%
RSET = 19.6 kΩ, VO = 1.5 V
91%
RSET = 35.7 kΩ, VO = 1.2 V
89%
RSET = 63.4 kΩ, VO = 1.0 V
87%
Open, VO = 0.7 V
83%
10
mVPP
Reset, followed by auto-recovery
55
A
w/o TurboTrans
CO = 470µF
Transient response
2.5 A/µs load step
50 to 100% IOmax
w/o TurboTrans
CO = 940µF, Type C
w/ TurboTrans
CO = 940µF, Type C
ΔVtrTT
IIL
Track input current (pin 14) Pin to GND
dVtrack/dt
Track slew rate capability
CO ≤ CO (max)
UVLOADJ
Adjustable Undervoltage
lockout (pin 1)
Pin 1 open
Recovery time
50
µs
VO over/undershoot
140
mV
Recovery time
50
µs
VO over/undershoot
120
mV
Recovery time
5
µs
VO over/undershoot
80
mV
–130 (2)
1
VI increasing
4.00
VI Turn–Off Hysterisis
Input high voltage (VIH)
Inhibit control (pin 1)
Input low voltage (VIL)
Input standby current
Inhibit (pin 1) to GND, Track (pin 14) open
fs
Switching frequency
Over VI and IO ranges
CI
External input capacitance
(3)
(4)
4
4.25
4.45
0.150
VI – 0.5
Open (3)
-0.2
0.6
Input low current (IIL)
Iin
(2)
%Vo
Overcurrent threshold
ttrTT
(1)
(1)
20-MHz bandwidth
ΔVtr
ΔVtr
mV
±1.5
VO Ripple (peak-to-peak)
ttr
ttr
%Vo
±0.3
Efficiency
ILIM
±1
Temperature variation
(1)
A
1000
(4)
µA
V/ms
V
V
125
µA
3
mA
640
kHz
µF
The set-point voltage tolerance is affected by the tolerance and stability of RSET. The stated limit is unconditionally met if RSET has a
tolerance of 1% with 100 ppm/C or better temperature stability.
A low-leakage (1690 mA
16 × 15
Output Bus
Input
Bus
No
TurboTrans
TurboTrans
(Cap
Type) (2)
1
≥ 2 (3)
N/R (4)
EEUFC1E102S
(3)
N/R (4)
EEUFC1E182
Vendor Part No.
FC (Radial)
25 V
1800
0.029Ω
2205 mA
16 × 20
1
≥1
FC(SMD)
25 V
2200
0.028Ω
>2490 mA
18 × 21,5
1
≥ 1 (3)
N/R (4)
EEVFC1E222N
FK(SMD)
25 V
1000
0.060Ω
1100 mA
12,5×13,5
1
≥ 2 (5)
N/R (4)
EEVFK1V102Q
PTB(SMD) Polymer
Tantalum
6.3 V
470
0.025Ω
2600 mA
7,3x 4,3x
2.8
2 (6)
≥ 2 ~ ≤ 4 (3)
C ≥ 2 (2)
LXZ, Aluminum (Radial)
25 V
680
0.068Ω
1050 mA
10 × 16
2
≥ 1 ~ ≤ 3 (3)
N/R (4)
PS,
Poly-Aluminum(Radial)
16 V
330
0.014Ω
5060 mA
10 × 12,5
3 (6)
≥2~≤3
B ≥ 2 (2)
16PS330MJ12
PXA, Poly-Aluminum
(SMD)
16 V
330
0.014Ω
5050 mA
10 × 12,2
3 (6)
≥2~≤3
B ≥ 2 (2)
PXA16VC331MJ12TP
PS,
Poly-Aluminum(Radial)
6.3 V
680
0.010Ω
5500 mA
10 × 12,5
2
≥ 1 ~≤ 2
C ≥ 1 (2)
6PS680MJ12
PXA,
Poly-Aluminum(Radial)
6.3 V
470
0.012Ω
4770 mA
8 × 12,2
2 (6)
≥1~≤2
C ≥ 1 (2)
PXA6.3VC471MH12TP
Nichicon, Aluminum
25 V
470
0.070Ω
985 mA
12,5 × 15
2 (6)
≥ 2 (3)
N/R (4)
UPM1E471MHH6
(6)
≥2
(3)
N/R (4)
UHD1E471MHR
UPM1V561MHH6
United Chemi-Con
HD (Radial)
25 V
470
0.038Ω
1430 mA
10 × 16
PM (Radial)
35 V
560
0.048Ω
1360 mA
16 × 15
2
≥ 2 (3)
N/R (4)
4000 mA
7,3 L×4,3
W ×4,2H
N/R (7)
N/R (7)
B ≥ 2 (2)
Panasonic,
Poly-Aluminum:
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
12
2.0 V
390
0.005Ω
2
6PTB477MD8TER
LXZ25VB681M10X20LL
EEFSE0J391R(VO≤1.6V) (8)
Capacitor Supplier Verification
Please verify availability of capacitors identified in this table. Capacitor suppliers may recommend alternative part numbers because of
limited availability or obsolete products. In some instances, the capacitor product life cycle may be in decline and have short-term
consideration for obsolescence.
RoHS, Lead-free and Material Details
See the capacitor suppliers regarding material composition, RoHS status, lead-free status, and manufacturing process requirements.
Component designators or part number deviations can occur when material composition or soldering requirements are updated.
Required capacitors with TurboTrans. See the TransTrans Application information for Capacitor Selection
Capacitor Type Groups by ESR (Equivalent Series Resistance) :
a. Type A = (100 < capacitance × ESR ≤ 1000)
b. Type B = (1,000 < capacitance × ESR ≤ 5,000)
c. Type C = (5,001 < capacitance × ESR ≤ 10,000)
Total bulk nonceramic capacitors on the output bus with ESR of ≥ 15mΩ to ≤ 30mΩ requires an additional ≥ 200 µF of ceramic
capacitor.
Aluminum Electrolytic capacitor not recommended for the TurboTrans due to higher ESR × capacitance products. Aluminum and higher
ESR capacitors can be used in conjunction with lower ESR capacitance.
Output bulk capacitor's maximum ESR is ≥ 30 mΩ. Additional ceramic capacitance of ≥ 200 µF is required.
The minimum capactiance on the input bus can be less than 1000 µF when using this type of capacitor. Insure that the minimum rms
ripple current rating is met.
N/R – Not recommended. The voltage rating does not meet the minimum operating limits.
The voltage rating of this capacitor only allows it to be used for output voltage that is equal to or less than 80% of the working voltage.
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Table 3. Input/Output Capacitors (continued)
Capacitor Characteristics
Capacitor Vendor,
Type Series (Style)
Working Value
Voltage
(µF)
Max.
ESR
at 100
kHz
Quantity
Max
Ripple
Physical
Current at
Size (mm)
85°C
(Irms)
Output Bus
Input
Bus
No
TurboTrans
TurboTrans
(Cap
Type) (2)
Vendor Part No.
Sanyo
TPE, Poscap (SMD)
6.3 V
470
0.018Ω
3500 mA
7,3 × 4,3
N/R (9)
≥1~≤3
C ≥ 1 (10)
6TPE470MI
TPE Poscap(SMD)
2.5 V
470
0.007Ω
4400 mA
7,3 × 4,3
N/R (9)
≥1≤2
B ≥ 2 (10)
2R5TPE470M7(VO ≤ 1.8 V) (11)
TPD Poscap (SMD)
2.5 V
1000
0.005Ω
6100 mA
7,3 × 4,3
N/R (9)
≤1
B ≥ 1 (10)
2R5TPD1000M5(VO ≤ 1.8 V) (11)
2
(12)
≥1~≤4
SA, Os-Con (Radial)
16 V
470
0.020Ω
>6080 mA
16 × 23
SP Oscon ( Radial)
10 V
470
0.015
>4500 mA
10 × 11,5
2 (12)
≥1~≤3
C ≥ 2 (10)
10SP470M
SEPC, Os-Con (Radial)
6.3 V
1500
0.010Ω
>5500 mA
10 × 13
1
≥1~≤2
B ≥ 1 (10)
6SEPC1500M
SVPA, Os-Con (SMD)
6.3 V
470
0.020Ω
4700mA
10 × 10,3
2 (12)
≥ 1 ~ ≤ 4 (14)
C ≥ 1 (10) (14)
6SVPA470M
AVX, Tantalum, Series III
TPM Multianode
6.3 V
6.3 V
680
470
0.035Ω
0.018Ω
>2400 mA
>3800 mA
7,3 L
× 4,3 W
× 4,1 H
N/R (9)
N/R (9)
≥ 2 ~ ≤ 7 (14)
≥ 2 ~ ≤ 3 (14)
N/R (13)
C ≥ 2 (10) (14)
TPSE477M010R0045
TPME687M006#0018
TPS Series III (SMD)
4V
1000
0.035Ω
2405
7,3 L ×5,7
W
N/R (9)
≥ 2 ~ ≤ 7 (14)
N/R (13)
TPSV108K004R0035
(VO ≤ 2.2 V) (11)
Kemet, Poly-Tantalum
6.3 V
470
0.018Ω
2700 mA
4,3 W
N/R (9)
≥ 1 ~ ≤ 3 (14)
C ≥ 2 (10)
T520X477M06ASE018
≥ 1 ~ ≤2
B ≥ 1 (10)
T530X477M006ASE010
N/R
(9)
N/R
(13)
16SA470M
T520 (SMD)
6.3 V
470
0.010Ω
>5200 mA
× 7,3 L
T530 (SMD)
6.3 V
470
0.005Ω
7300 mA
×4H
2 (12)
≤1
B ≥ 1 (10)
T530X477M006ASE005
T530 (SMD)
2.5 V
1000
0.005Ω
7300 mA
4,3 w ×
7,3 L
2 (12)
≤1
B ≥ 1 (10)
T530X108M2R5ASE005
(VO ≤ 2.0 V) (11)
594D, Tantalum (SMD)
6.3 V
1000
0.030Ω
2890 mA
7,2L ×5,7
W ×4,1H
N/R (9)
≥1~≤6
N/R (13)
594D108X06R3R2TR2T
94SA, Os-con (Radial)
16 V
1000
0.015Ω
9740 mA
16 × 25
1
≥1~≤3
N/R (13)
94SA108X0016HBP
94SVP Os-Con(SMD)
16 V
330
0.017Ω
>4500 mA
10 × 12,7
2
≥2~≤3
C ≥ 1 (10)
94SVP827X06R3F12
Kemet, Ceramic X5R
(SMD)
16 V
10
0.002Ω
–
3225
1 (15)
≥ 1 (16)
A (10)
C1210C106M4PAC
6.3 V
47
0.002Ω
N/R (9)
≥ 1 (16)
A (10)
C1210C476K9PAC
6.3 V
100
0.002Ω
–
3225
N/R (9)
≥ 1 (16)
A (10)
GRM32ER60J107M
6.3 V
47
N/R (9)
≥ 1 (16)
A (10)
GRM32ER60J476M
25 V
22
1 (15)
≥ 1 (16)
A (10)
GRM32ER61E226K
16 V
10
1 (15)
≥ 1 (16)
A (10)
GRM32DR61C106K
(16)
(10)
C3225X5R0J107MT
Vishay-Sprague
Murata, Ceramic X5R
(SMD)
TDK, Ceramic X5R (SMD)
0.002Ω
–
3225
N/R
(9)
≥1
6.3 V
100
6.3 V
47
N/R (9)
≥ 1 (16)
A
A (10)
C3225X5R0J476MT
16 V
10
1 (15)
≥ 1 (16)
A (10)
C3225X5R1C106MT0
16 V
22
1 (15)
≥ 1 (16)
A (10)
C3225X5R1C226MT
(9) N/R – Not recommended. The voltage rating does not meet the minimum operating limits.
(10) Required capacitors with TurboTrans. See the TransTrans Application information for Capacitor Selection
Capacitor Type Groups by ESR (Equivalent Series Resistance) :
a. Type A = (100 < capacitance × ESR ≤ 1000)
b. Type B = (1,000 < capacitance × ESR ≤ 5,000)
c. Type C = (5,001 < capacitance × ESR ≤ 10,000)
(11) The voltage rating of this capacitor only allows it to be used for output voltage that is equal to or less than 80% of the working voltage.
(12) The minimum capactiance on the input bus can be less than 1000 µF when using this type of capacitor. Insure that the minimum rms
ripple current rating is met.
(13) Aluminum Electrolytic capacitor not recommended for the TurboTrans due to higher ESR × capacitance products. Aluminum and higher
ESR capacitors can be used in conjunction with lower ESR capacitance.
(14) Total bulk nonceramic capacitors on the output bus with ESR of ≥ 15mΩ to ≤ 30mΩ requires an additional ≥ 200 µF of ceramic
capacitor.
(15) In addition to the required input capacitance , ceramic capacitors can be added to attenuate high-frequency reflected ripple current.
(16) Maximum ceramic capacitance on the output bus is ≤ 3000 µF. Any combination of the ceramic capacitor values is limited to 3000 µF
for non-TurboTrans applications. The total capacitance is limited to 14,000 µF which includes all ceramic and non-ceramic types.
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TurboTrans™ Technology
TurboTrans technology is a feature introduced in the T2 generation of the PTH/PTV family of power modules.
TurboTrans optimizes the transient response of the regulator with added external capacitance using a single
external resistor. The, benefits of this technology include: reduced output capacitance, minimized output voltage
deviation following a load transient, and enhanced stability when using ultra-low ESR output capacitors. The
amount of output capacitance required to meet a target output voltage deviation, is reduced with TurboTrans
activated. Likewise, for a given amount of output capacitance, with TurboTrans engaged, the amplitude of the
voltage deviation following a load transient is reduced. Applications requiring tight transient voltage tolerances
and minimized capacitor footprint area benefit from this technology.
TurboTrans™ Selection
Utilizing TurboTrans requires connecting a resistor, RTT, between the +Sense pin (pin10) and the TurboTrans pin
(pin13). The value of the resistor directly corresponds to the amount of output capacitance required. All T2
products require a minimum value of output capacitance whether or not TurboTrans is used. For the
PTH05T210W, the minimum required capacitance is 470µF. When using TurboTrans, capacitors with a
capacitance × ESR product below 10,000µF × mΩ are required. (Multiply the capacitance (in µF) by the ESR (in
mΩ) to determine the capacitance × ESR product.) See the Capacitor Selection section of the datasheet for a
variety of capacitors that meet this criteria.
Figure 7 through Figure 9, show the amount of output capacitance required to meet a desired transient voltage
deviation with and without TurboTrans for several capacitor types; TypeA (e.g.ceramic), TypeB
(e.g.polymer-tantalum), and TypeC (e.g.OS-CON). To calculate the proper value of RTT, first determine the
required transient voltage deviation limits and magnitude of the transient load step. Next, determine what type of
output capacitors to be used. (If more than one type of output capacitor is used, select the capacitor type that
makes up the majority of the total output capacitance.) Knowing this information, use the chart in Figure 7
through Figure 9 that corresponds to the capacitor type selected. To use the chart, begin by dividing the
maximum voltage deviation limit (in mV) by the magnitude of the load step (in Amps). This gives a mV/A value.
Find this value on the Y-axis of the appropriate chart. Read across the graph to the 'With TurboTrans' plot. From
this point, read down to the X-axis which lists the minimum required capacitance, CO, to meet the transient
voltage deviation. The required RTT resistor value can then be calculated using Equation 2 or selected from the
TurboTrans table. The TurboTrans tables include both the required output capacitance and the corresponding
RTT values to meet several values of transient voltage deviation for 25%(7.5A), 50%(15A), and 75%(22.5A)
output load steps.
The chart can also be used to determine the achievable transient voltage deviation for a given amount of output
capacitance. Selecting the amount of output capacitance along the X-axis, reading up to the 'With TurboTrans'
curve, and then over to the Y-axis, gives the transient voltage deviation limit for that value of output capacitance.
The required RTT resistor value can be calculated using Equation 2 or selected from the TurboTrans table.
As an example, let's look at a 12-V application requiring a 60mV deviation during a 15A, 50% load transient. A
majority of 330µF, 10mΩ output capacitors are used. Use the 12V, TypeB capacitor chart, Figure 8. Dividing
60mV by 15A gives 4mV/A transient voltage deviation per amp of transient load step. Select 4mV/A on the
Y-axis and read across to the 'With TurboTrans' plot. Following this point down to the X-axis gives us a minimum
required output capacitance of approximately 1350µF. The required RTT resistor value for 1350µF can then be
calculated or selected from Figure 8. The required RTT resistor is approximately 9.31kΩ.
To see the benefit of TurboTrans, follow the 4mV/A marking across to the 'Without TurboTrans' plot. Following
that point down shows that more than 10,000µF of output capacitance is required to meet the same transient
deviation limit. This is the benefit of TurboTrans. A typical TurboTrans application schematic is shown in
Figure 10.
14
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Type A Capacitor
5-V Input
20
Transient − mV/A
Without Turbo Trans
10
9
8
7
6
5
With Turbo Trans
4
3
VI = 5 V
10000
3000
4000
5000
6000
2000
1000
400
500
300
200
2
C − Capacitance − µF
Figure 7. Capacitor Type A, 100 ≤ C µF × ESR ≤ 1000 mΩ
(e.g. Ceramic)
Table 4. Type A TurboTrans CO Values & Required RTT Selection Table
Transient Voltage Deviation (mV)
5-V Input
25%
Load Step
(7.5 A)
50%
Load Step
(15 A)
75%
Load Step
(22.5 A)
CO
Minimum Required Output
Capacitance
(µF)
RTT
Required TurboTrans
Resistor (kΩ)
90
180
270
800
open
80
160
240
950
165
70
140
210
1100
75.0
60
120
180
1350
40.2
50
100
150
1650
22.1
40
80
120
2150
11.3
30
60
90
3000
3.65
25
40
60
3700
0.825
RTT Resistor Selection
The TurboTrans resistor value, RTT can be determined from the TurboTrans programming equation, see
Equation 2.
R TT + 40
5
CO
4000
ǒ Ǔ
ǒ Ǔ
1*
CO
*1
4000
kW
(2)
Where CO is the total output capacitance in µF. CO values greater than or equal to 4000 µF require RTT to be a
short, 0Ω. (Equation 2 results in a negative value for RTT when CO ≥ 4000 µF.)
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Type B Capacitor
5-V Input
20
Transient − mV/A
10
9
8
Without Turbo Trans
7
6
5
4
With Turbo Trans
3
10000
3000
4000
5000
6000
2000
1000
400
500
200
300
2
C − Capacitance − µF
Figure 8. Capacitor Type B, 1000 ≤ C (µF) × ESR (mΩ) ≤ 5000
(e.g. Polymer-Tantalum)
Table 5. Type B TurboTrans COValues & Required RTT Selection Table
Transient Voltage Deviation (mV)
5-V Input
25%
Load Step
(7.5 A)
50%
Load Step
(15 A)
75%
Load Step
(22.5 A)
CO
Minimum Required Output
Capacitance
(µF)
RTT
Required TurboTrans
Resistor (kΩ)
70
140
210
470
open
60
120
180
560
174
50
100
150
700
57.6
40
80
120
950
24.9
35
70
105
1100
15.8
30
60
90
1350
9.31
25
50
75
1700
4.42
20
40
60
2250
0.523
RTT Resistor Selection
The TurboTrans resistor value, RTT can be determined from the TurboTrans programming equation, see
Equation 3.
R TT + 40
5
CO
2350
ǒ Ǔ
ǒ Ǔ
1*
CO
*1
2350
kW
(3)
CO values greater than or equal to 2350 µF require RTT to be a short, 0Ω. (Equation 3 result sin a negative value
for RTT when CO ≥ 2350 µF.)
16
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Type C Capacitor
5-V Input
20
Transient − mV/A
10
9
8
Without Turbo Trans
7
6
5
4
With Turbo Trans
3
10000
3000
4000
5000
6000
2000
1000
400
500
200
300
2
C − Capacitance − µF
Figure 9. Capacitor Type C, 5000 ≤ C(µF)xESR(mΩ) ≤
10,000
(e.g. Os-Con)
Table 6. Type C TurboTrans COValues & Required RTT Selection Table
Transient Voltage Deviation (mV)
5-V Input
25%
Load Step
(7.5 A)
50%
Load Step
(15 A)
75%
Load Step
(22.5 A)
CO
Minimum Required Output
Capacitance
(µF)
RTT
Required TurboTrans
Resistor (kΩ)
70
140
210
470
open
60
120
180
600
130
50
100
150
750
51.1
40
80
120
950
22.6
35
70
105
1150
14.3
30
60
90
1400
8.45
25
50
75
1750
3.83
20
40
60
2300
0.182
RTT Resistor Selection
The TurboTrans resistor value, RTT can be determined from the TurboTrans programming equation, see
Equation 4.
R TT + 40
5
CO
2350
ǒ Ǔ
ǒ Ǔ
1*
CO
*1
2350
kW
(4)
CO values greater than or equal to 2350 µF require RTT to be a short, 0Ω. (Equation 4 results in a negative value
for RTT when CO ≥ 2350 µF.)
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TurboTrans
14
AutoTrack
RTT
3.32 kW
13
TurboTrans
+Sense
VI
2
6
1
PTH05T210W
VI
Inhibit/
Prog UVLO
GND
3
CI
1000 µF
(Required)
4
+Sense
10
9
VO
5
VO
−Sense
GND
VOAdj
7 8
12
11
RSET
1%
0.05 W
L
O
A
D
COTT
1800 µF
(Required)
−Sense
GND
GND
Figure 10. Typical TurboTrans Application Schematic
18
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UNDERVOLTAGE LOCKOUT (UVLO)
The PTH05T210W power modules incorporate an input undervoltage lockout (UVLO). The UVLO feature
prevents the operation of the module until there is sufficient input voltage to produce a valid output voltage. This
enables the module to provide a clean, monotonic powerup for the load circuit, and also limits the magnitude of
current drawn from the regulator’s input source during the power-up sequence.
The UVLO characteristic is defined by the ON threshold (VTHD) voltage. Below the ON threshold, the Inhibit
control is overridden, and the module does not produce an output. The hysterisis voltage, which is the difference
between the ON and OFF threshold voltages, is nominally set at 150mV. The hysterisis prevents start-up
oscillations, which can occur if the input voltage droops slightly when the module begins drawing current from the
input source.
UVLO Adjustment
The UVLO feature of the PTH05T210W module allows for limited adjustment of the ON threshold voltage. The
adjustment is made via the Inhbit/UVLO Prog control pin (pin 1) using a single resistor (see figure below). When
pin 1 is left open circuit, the ON threshold voltage is internally set to its default value. The ON threshold has a
nominal voltage of 4.25 V, and a hysterisis of 150 mV. Adjusting the threshold voltage prevents the module from
operating if the input bus fails to completely rise to its specified regulation voltage.
Equation 5 determines the value of RTHD required to adjust VTHD to a new value. The default value is 4.25 V, and
it may only be adjusted to a higher value.
101 * V THD
R UVLO +
kW
VTHD * 1
(5)
Table 7 lists the standard resistor values for RUVLO for different values of the ON-threshold (VTHD) voltage.
Table 7. Standard Values of RUVLO for Various Values of VTHD
VTHD
5.00 V
4.75 V
4.50 V
4.25 V
RUVLO
24.3 kΩ
25.5 kΩ
27.57 kΩ
OPEN
VI
2
VI
1
PTH05T210W
Inhibit/
UVLO Prog
GND
3
CI
4
RUVLO
GND
Figure 11. UVLO Program Resistor Placement
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Soft-Start Power Up
The Auto-Track feature allows the power-up of multiple PTH/PTV modules to be directly controlled from the
Track pin. However in a stand-alone configuration, or when the Auto-Track feature is not being used, the Track
pin should be directly connected to the input voltage, VI. (see Figure 12)
14
Track
VI
2, 6
VI
VI (2 V/div)
PTH05T210W
VO (1 V/div)
GND
3,4
7,8
II (5 A/div)
CI
GND
t − Time − 10 ms/div
Figure 12. Power-Up Application Circuit
Figure 13. Power-Up Waveform
When the Track pin is connected to the input voltage the Auto-Track function is permanently disengaged. This
allows the module to power up entirely under the control of its internal soft-start circuitry. When power up is
under soft-start control, the output voltage rises to the set-point at a quicker and more linear rate. From the
moment a valid input voltage is applied, the soft-start control introduces a short time delay (typically 8 ms–15ms)
before allowing the output voltage to rise. The output then progressively rises to the module’s setpoint voltage.
Figure 13 shows the soft-start power-up characteristic of the PTH05T210W operating from a 5-V input bus and
configured for a 1.8-V output. The waveforms were measured with a 20-A resistive load and the Auto-Track
feature disabled. The initial rise in input current when the input voltage first starts to rise is the charge current
drawn by the input capacitors. Power-up is complete within 25 ms.
Remote Sense
Products with this feature incorporate one or two remote sense pins. Remote sensing improves the load
regulation performance of the module by allowing it to compensate for any IR voltage drop between its output
and the load. An IR drop is caused by the high output current flowing through the small amount of pin and trace
resistance.
To use this feature simply connect the Sense pins to the corresponding output voltage node, close to the load
circuit. If a sense pin is left open-circuit, an internal low-value resistor (15-Ω or less) connected between the pin
and the output node, ensures the output remains in regulation.
With the sense pin connected, the difference between the voltage measured directly between the VO and GND
pins, and that measured at the Sense pins, is the amount of IR drop being compensated by the regulator. This
should be limited to a maximum of 0.3 V.
The remote sense feature is not designed to compensate for the forward drop of nonlinear or frequency
dependent components that may be placed in series with the converter output. Examples include OR-ing
diodes, filter inductors, ferrite beads, and fuses. When these components are enclosed by the remote sense
connection they are effectively placed inside the regulation control loop, which can adversely affect the
stability of the regulator.
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Output On/Off Inhibit
For applications requiring output voltage on/off control, the PTH05T210W incorporates an output Inhibit control
pin. The inhibit feature can be used wherever there is a requirement for the output voltage from the regulator to
be turned off.
The power modules function normally when the Inhibit pin is left open-circuit, providing a regulated output
whenever a valid source voltage is connected to VI with respect to GND.
Figure 14 shows the typical application of the inhibit function. Note the discrete transistor (Q1). The Inhibit input
has its own internal pull-up to a potential of 5 V. The input is not compatible with TTL logic devices and should
not be tied to VI. An open-collector (or open-drain) discrete transistor is recommended for control.
VI
2, 6
VI
PTH05T210W
1 Inhibit/
UVLO
GND
3,4
CI
7,8
Q1
BSS 138
1 = Inhibit
GND
Figure 14. On/Off Inhibit Control Circuit
Figure 15. Power-Up Response from Inhibit Control
Turning Q1 on applies a low voltage to the Inhibit control pin and disables the output of the module. If Q1 is then
turned off, the module executes a soft-start power-up sequence. A regulated output voltage is produced within 25
ms. Figure 15 shows the typical rise in both the output voltage and input current, following the turn-off of Q1. The
turn off of Q1 corresponds to the rise in the waveform, VINH. The waveforms were measured with a 20-A resistive
load.
NOTE: When applying a low voltage (≤0.6 V) to the Inhibit control pin to turn off the module, the low side
FET will immediately discharge any capacitance on the output bus. Depending on the amount and type
of capacitors, this may induce a negative voltage transient that can momentarily go below GND potential.
If turn-off control is desired, the Auto-Track pin can be used to the control ramp up and ramp down of
the output voltage.
Overcurrent Protection
For protection against load faults, all modules incorporate output overcurrent protection. Applying a load that
exceeds the regulator's overcurrent threshold causes the regulated output to shut down. Following shutdown, a
module periodically attempts to recover by initiating a soft-start power-up. This is described as a hiccup mode of
operation, whereby the module continues in a cycle of successive shutdown and power up until the load fault is
removed. During this period, the average current flowing into the fault is significantly reduced. Once the fault is
removed, the module automatically recovers and returns to normal operation.
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Overtemperature Protection (OTP)
A thermal shutdown mechanism protects the module’s internal circuitry against excessively high temperatures. A
rise in the internal temperature may be the result of a drop in airflow, or a high ambient temperature. If the
internal temperature exceeds the OTP threshold, the module’s Inhibit control is internally pulled low. This turns
the output off. The output voltage drops as the external output capacitors are discharged by the load circuit. The
recovery is automatic, and begins with a soft-start power up. It occurs when the sensed temperature decreases
by about 10°C below the trip point.
The overtemperature protection is a last resort mechanism to prevent thermal stress to the regulator.
Operation at or close to the thermal shutdown temperature is not recommended and reduces the long-term
reliability of the module. Always operate the regulator within the specified safe operating area (SOA) limits for
the worst-case conditions of ambient temperature and airflow.
Auto-Track™ Function
The Auto-Track function is unique to the PTH/PTV family, and is available with all POLA products. Auto-Track
was designed to simplify the amount of circuitry required to make the output voltage from each module power up
and power down in sequence. The sequencing of two or more supply voltages during power up is a common
requirement for complex mixed-signal applications that use dual-voltage VLSI ICs such as the TMS320™ DSP
family, microprocessors, and ASICs.
How Auto-Track™ Works
Auto-Track works by forcing the module output voltage to follow a voltage presented at the Track control pin (1).
This control range is limited to between 0 V and the module set-point voltage. Once the track-pin voltage is
raised above the set-point voltage, the module output remains at its set-point (2). As an example, if the Track pin
of a 2.5-V regulator is at 1 V, the regulated output is 1 V. If the voltage at the Track pin rises to 3 V, the regulated
output does not go higher than 2.5 V.
When under Auto-Track control, the regulated output from the module follows the voltage at its Track pin on a
volt-for-volt basis. By connecting the Track pin of a number of these modules together, the output voltages follow
a common signal during power up and power down. The control signal can be an externally generated master
ramp waveform, or the output voltage from another power supply circuit (3). For convenience, the Track input
incorporates an internal RC-charge circuit. This operates off the module input voltage to produce a suitable rising
waveform at power up.
Typical Application
The basic implementation of Auto-Track allows for simultaneous voltage sequencing of a number of Auto-Track
compliant modules. Connecting the Track inputs of two or more modules forces their track input to follow the
same collective RC-ramp waveform, and allows their power-up sequence to be coordinated from a common
Track control signal. This can be an open-collector (or open-drain) device, such as a power-up reset voltage
supervisor IC. See U3 in Figure 18.
To coordinate a power-up sequence, the Track control must first be pulled to ground potential. This should be
done at or before input power is applied to the modules. The ground signal should be maintained for at least
20 ms after input power has been applied. This brief period gives the modules time to complete their internal
soft-start initialization (4), enabling them to produce an output voltage. A low-cost supply voltage supervisor IC,
that includes a built-in time delay, is an ideal component for automatically controlling the Track inputs at power
up.
Figure 18 shows how a TPS3808 supply voltage supervisor IC (U3) can be used to coordinate the sequenced
power up of 5-V PTH modules. The output of the TPS3808 supervisor becomes active above an input voltage of
0.8 V, enabling it to assert a ground signal to the common track control well before the input voltage has reached
the module's undervoltage lockout threshold. The ground signal is maintained until approximately 27ms after the
input voltage has risen above U3's voltage threshold, which is 4.65V. The 27-ms time period is controlled by the
capacitor C3. The value of 4700pF provides sufficient time delay for the modules to complete their internal
soft-start initialization. The output voltage of each module remains at zero until the track control voltage is
allowed to rise. When U3 removes the ground signal, the track control voltage automatically rises. This causes
the output voltage of each module to rise simultaneously with the other modules, until each reaches its
respective set-point voltage.
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Figure 16 shows the output voltage waveforms after input voltage is applied to the circuit. The waveforms, VO1
and VO2, represent the output voltages from the two power modules, U1 (3.3 V) and U2 (1.8 V), respectively.
VTRK, VO1, and VO2 are shown rising together to produce the desired simultaneous power-up characteristic.
The same circuit also provides a power-down sequence. When the input voltage falls below U3's voltage
threshold, the ground signal is re-applied to the common track control. This pulls the track inputs to zero volts,
forcing the output of each module to follow, as shown in Figure 17. Power down is normally complete before the
input voltage has fallen below the modules' undervoltage lockout. This is an important constraint. Once the
modules recognize that an input voltage is no longer present, their outputs can no longer follow the voltage
applied at their track input. During a power-down sequence, the fall in the output voltage from the modules is
limited by the Auto-Track slew rate capability.
Notes on Use of Auto-Track™
1. The Track pin voltage must be allowed to rise above the module set-point voltage before the module
regulates at its adjusted set-point voltage.
2. The Auto-Track function tracks almost any voltage ramp during power up, and is compatible with ramp
speeds of up to 1 V/ms.
3. The absolute maximum voltage that may be applied to the Track pin is the input voltage VI.
4. The module cannot follow a voltage at its track control input until it has completed its soft-start initialization.
This takes about 20 ms from the time that a valid voltage has been applied to its input. During this period, it
is recommended that the Track pin be held at ground potential.
5. The Auto-Track function is disabled by connecting the Track pin to the input voltage (VI). When Auto-Track is
disabled, the output voltage rises at a quicker and more linear rate after input power has been applied.
VTRK (1 V/div)
VTRK (1 V/div)
VO1 (1 V/div)
VO1 (1 V/div)
VO2 (1 V/div)
VO2 (1 V/div)
t − Time − 20 ms/div
t − Time − 200 µs/div
Figure 16. Simultaneous Power Up
With Auto-Track Control
Figure 17. Simultaneous Power Down
With Auto-Track Control
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U1
AutoTrack
TurboTrans
RTT
+Sense
VI
VO
PTH05T210W
−Sense
Inhibit/UVLO Prog
6
+
SENSE
3
C4
5
CO1
VoAdj
GND
CI1
VCC
RSET1
1.62 kΩ
MR
TPS3808G50
RESET
4
1
CT
U1
GND
C3
4700 pF
AutoTrack
TurboTrans
2
SmartSync
VI
RTT
+Sense
VO
PTH08T220W
Inhibit/UVLO Prog
−Sense
CO2
+
CI2
GND
VoAdj
RSET2
4.75 kΩ
Figure 18. Sequenced Power Up and Power Down Using Auto-Track
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TAPE & REEL AND TRAY DRAWINGS
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PACKAGING INFORMATION
Orderable Device
Status
(1)
Package Type Package
Drawing
Pins
Package Qty
Eco Plan
(2)
Lead/
Ball Finish
MSL Peak Temp
(3)
Samples
(Requires Login)
PTH05T210WAD
ACTIVE
ThroughHole Module
ECP
14
35
Pb-Free (RoHS)
SN
N / A for Pkg Type
Request Free Samples
PTH05T210WAH
ACTIVE
ThroughHole Module
ECP
14
35
Pb-Free (RoHS)
SN
N / A for Pkg Type
Request Free Samples
PTH05T210WAS
ACTIVE
Surface
Mount Module
ECQ
14
35
TBD
SNPB
Level-1-235C-UNLIM/
Level-3-260C-168HRS
Request Free Samples
PTH05T210WAST
ACTIVE
Surface
Mount Module
ECQ
14
250
TBD
SNPB
Level-1-235C-UNLIM/
Level-3-260C-168HRS
Purchase Samples
PTH05T210WAZ
ACTIVE
Surface
Mount Module
ECQ
14
35
Pb-Free (RoHS)
SNAGCU
Level-3-260C-168 HR
Request Free Samples
PTH05T210WAZT
ACTIVE
Surface
Mount Module
ECQ
14
250
Pb-Free (RoHS)
SNAGCU
Level-3-260C-168 HR
Purchase Samples
(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), Pb-Free (RoHS Exempt), 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.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between
the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above.
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.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information
provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and
continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.
TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.
Addendum-Page 1
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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 to Customer on an annual basis.
Addendum-Page 2
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Following are URLs where you can obtain information on other Texas Instruments products and application solutions:
Products
Applications
Audio
www.ti.com/audio
Automotive and Transportation www.ti.com/automotive
Amplifiers
amplifier.ti.com
Communications and Telecom www.ti.com/communications
Data Converters
dataconverter.ti.com
Computers and Peripherals
www.ti.com/computers
DLP® Products
www.dlp.com
Consumer Electronics
www.ti.com/consumer-apps
DSP
dsp.ti.com
Energy and Lighting
www.ti.com/energy
Clocks and Timers
www.ti.com/clocks
Industrial
www.ti.com/industrial
Interface
interface.ti.com
Medical
www.ti.com/medical
Logic
logic.ti.com
Security
www.ti.com/security
Power Mgmt
power.ti.com
Space, Avionics and Defense
www.ti.com/space-avionics-defense
Microcontrollers
microcontroller.ti.com
Video and Imaging
www.ti.com/video
RFID
www.ti-rfid.com
OMAP Mobile Processors
www.ti.com/omap
Wireless Connectivity
www.ti.com/wirelessconnectivity
TI E2E Community Home Page
e2e.ti.com
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