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POWER SWITCH. TPS2561-Q1 Datasheet

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POWER SWITCH. TPS2561-Q1 Datasheet






TPS2561-Q1 SWITCH. Datasheet pdf. Equivalent




TPS2561-Q1 SWITCH. Datasheet pdf. Equivalent





Part

TPS2561-Q1

Description

DUAL CHANNEL PRECISION ADJUSTABLE CURRENT-LIMITED POWER SWITCH



Feature


www.ti.com TPS2561-Q1 SLVSB51A – DECE MBER 2011 – REVISED AUGUST 2012 DUAL CHANNEL PRECISION ADJUSTABLE CURRENT-L IMITED POWER SWITCH Check for Samples: TPS2561-Q1 FEATURES 1 •2 Qualified f or Automotive Applications • Two Sepa rate Current Limiting Channels • Meet s USB Current-Limiting Requirements • Adjustable Current Limit, 250 mA–2.8 A (typ) • ± 7.5% Current-Limit .
Manufacture

Texas Instruments

Datasheet
Download TPS2561-Q1 Datasheet


Texas Instruments TPS2561-Q1

TPS2561-Q1; Accuracy at 2.8 A • Fast Overcurrent R esponse - 3.5-μS (typ) • Two 44-mΩ High-Side MOSFETs • Operating Range: 2.5 V to 6.5 V • 2-μA Maximum Stand by Supply Current • Built-in Soft-Sta rt • 15 kV or 8 kV System-Level ESD C apable • UL Listed – File No. E1699 10 • CB and Nemko Certified DESCRIPT ION The TPS2561-Q1 is a dual-channel po wer-distribution switch intended for app.


Texas Instruments TPS2561-Q1

lications where precision current limiti ng is required or heavy capacitive load s and short circuits are encountered. T hese devices offer a programmable curre nt-limit threshold between 250 mA and 2 .8 A (typ) per channel through an exter nal resistor. The power-switch rise and fall times are controlled to minimize current surges during turn on or off. E ach channel of the.


Texas Instruments TPS2561-Q1

TPS2561-Q1 device limits the output cur rent to a safe level by switching into a constant-current mode when the output load exceeds the current-limit thresho ld. The FAULTx logic output for each ch annel independently asserts low during overcurrent and over temperature condit ions. TPS2561-Q1 DRC PACKAGE (TOP VIEW ) GND 1 IN 2 IN 3 EN1 4 EN2 5 10 FAUL T1 9 OUT1 PAD 8 OU.

Part

TPS2561-Q1

Description

DUAL CHANNEL PRECISION ADJUSTABLE CURRENT-LIMITED POWER SWITCH



Feature


www.ti.com TPS2561-Q1 SLVSB51A – DECE MBER 2011 – REVISED AUGUST 2012 DUAL CHANNEL PRECISION ADJUSTABLE CURRENT-L IMITED POWER SWITCH Check for Samples: TPS2561-Q1 FEATURES 1 •2 Qualified f or Automotive Applications • Two Sepa rate Current Limiting Channels • Meet s USB Current-Limiting Requirements • Adjustable Current Limit, 250 mA–2.8 A (typ) • ± 7.5% Current-Limit .
Manufacture

Texas Instruments

Datasheet
Download TPS2561-Q1 Datasheet




 TPS2561-Q1
www.ti.com
TPS2561-Q1
SLVSB51A – DECEMBER 2011 – REVISED AUGUST 2012
DUAL CHANNEL PRECISION ADJUSTABLE CURRENT-LIMITED POWER SWITCH
Check for Samples: TPS2561-Q1
FEATURES
1
2 Qualified for Automotive Applications
• Two Separate Current Limiting Channels
• Meets USB Current-Limiting Requirements
• Adjustable Current Limit, 250 mA–2.8 A (typ)
• ± 7.5% Current-Limit Accuracy at 2.8 A
• Fast Overcurrent Response - 3.5-μS (typ)
• Two 44-mHigh-Side MOSFETs
• Operating Range: 2.5 V to 6.5 V
• 2-μA Maximum Standby Supply Current
• Built-in Soft-Start
• 15 kV or 8 kV System-Level ESD Capable
• UL Listed – File No. E169910
• CB and Nemko Certified
DESCRIPTION
The TPS2561-Q1 is a dual-channel power-distribution
switch intended for applications where precision
current limiting is required or heavy capacitive loads
and short circuits are encountered. These devices
offer a programmable current-limit threshold between
250 mA and 2.8 A (typ) per channel through an
external resistor. The power-switch rise and fall times
are controlled to minimize current surges during turn
on or off.
Each channel of the TPS2561-Q1 device limits the
output current to a safe level by switching into a
constant-current mode when the output load exceeds
the current-limit threshold. The FAULTx logic output
for each channel independently asserts low during
overcurrent and over temperature conditions.
TPS2561-Q1
DRC PACKAGE
(TOP VIEW)
GND 1
IN 2
IN 3
EN1 4
EN2 5
10 FAULT1
9 OUT1
PAD 8 OUT2
7 ILIM
6 FAULT2
ENx = Active Low for the TPS2560
ENx = Active High for the TPS2561-Q1
TPS2561-Q1
2.5 V 6.5 V
0.1 μF
IN
OUT1
2x RFAULT
100 kΩ
Fault Signal
Fault Signal
Control Signal
IN
OUT2
RILIM
ILIM
FAULT1
FAULT2 GND
EN1
Control Signal
EN2
PowerPAD
VOUT1
VOUT2
2x CLOAD
Figure 1. Typical Application as USB Power Switch
1
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.
PowerPAD is a trademark of Texas Instruments.
2
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 © 2011–2012, Texas Instruments Incorporated




 TPS2561-Q1
TPS2561-Q1
SLVSB51A – DECEMBER 2011 – REVISED AUGUST 2012
www.ti.com
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more
susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
TA (2)
–40°C to 125°C
ORDERING INFORMATION(1)
PACKAGE
ORDERABLE PART NUMBER
SON - DRC
Reel of 3000
TPS2561QDRCRQ1
TOP-SIDE MARKING
PXPQ
(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
website at www.ti.com.
(2) Maximum ambient temperature is a function of device junction temperature and system level considerations, such as power dissipation
and board layout. See dissipation rating table and recommended operating conditions for specific information related to these devices.
ABSOLUTE MAXIMUM RATINGS
over operating free-air temperature range unless otherwise noted(1) (2)
Voltage range on IN, OUTx, ENx or ENx, ILIM, FAULTx
Voltage range from IN to OUTx
Continuous output current
Continuous total power dissipation
Continuous FAULTx sink current
ILIM source current
HBM
ESD
CDM
ESD – system level (contact/air)(3)
TJ Maximum junction temperature
VALUE
–0.3 to 7
–7 to 7
Internally Limited
See the Dissipation Rating Table
25
Internally Limited
2
1000
8/15
–40 to 125(4)
UNIT
V
V
mA
mA
kV
V
kV
°C
(1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating
conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) Voltages are referenced to GND unless otherwise noted.
(3) Surges per EN61000-4-2, 1999 applied between USB and output ground of the TPS2561EVM (HPA424) evaluation module
(documentation available on the web.) These were the test level, not the failure threshold.
(4) Ambient over temperature shutdown threshold
DISSIPATION RATING TABLE
BOARD
High-K (2)
PACKAGE
DRC
THERMAL RESISTANCE(1)
θJA
41.6°C/W
THERMAL RESISTANCE
θJC
10.7°C/W
TA 25°C
POWER
RATING
2403 mW
(1) Mounting per the PowerPADTM Thermally Enhanced Package application report (SLMA002)
(2) The JEDEC high-K (2s2p) board used to derive this data was a 3in × 3in, multilayer board with 1-ounce internal power and ground
planes and 2-ounce copper traces on top and bottom of the board.
2
Copyright © 2011–2012, Texas Instruments Incorporated




 TPS2561-Q1
www.ti.com
RECOMMENDED OPERATING CONDITIONS
VIN
VENx
V/ENx
VIH
VIL
IOUTx
TJ
RILIM
Input voltage, IN
Enable voltage
High-level input voltage on ENx or ENx
Low-level input voltage on ENx or ENx
Continuous output current per channel, OUTx
Continuous FAULTx sink current
Operating virtual junction temperature
Recommended resistor limit range
TPS2561-Q1
SLVSB51A – DECEMBER 2011 – REVISED AUGUST 2012
MIN
MAX UNIT
2.5
6.5
V
0
6.5
V
1.1
V
0.66
0
2.5
A
0
10 mA
–40
125
°C
20
187
k
ELECTRICAL CHARACTERISTICS
over recommended operating conditions, V/ENx = 0 V, or VENx = VIN (unless otherwise noted)
PARAMETER
TEST CONDITIONS(1)
POWER SWITCH
rDS(on)
tr
Static drain-source on-state resistance per
channel, IN to OUTx(2)
Rise time, output(2)
tf
Fall time, output(2)
ENABLE INPUT EN OR EN
TJ = 25 °C
–40 °C TJ 125 °C
VIN = 6.5 V
VIN = 2.5 V
VIN = 6.5 V
VIN = 2.5 V
CLx = 1 μF, RLx = 100 ,
(see Figure 2)
Enable pin turn on/off threshold
Hysteresis
IEN
Input current
ton
Turn-on time(2)
toff
Turn-off time(2)
CURRENT LIMIT
VENx = 0 V or 6.5 V, V/ENx = 0 V or 6.5 V
CLx = 1 μF, RLx = 100 , (see Figure 2)
RILIM = 20 k
IOS
Current-limit threshold per channel (Maximum DC output current IOUTx
delivered to load) and Short-circuit current, OUTx connected to GND
RILIM = 61.9 k
RILIM = 100 k
tIOS
Response time to short circuit
VIN = 5.0 V (see Figure 3)
MIN TYP MAX UNIT
44 50
m
79
2
3
4
1
2
0.6 0.8
3
ms
1
0.4 0.6 0.8
0.66
1.1
V
55 (3)
mV
–0.5
0.5 μA
9 ms
6 ms
2590 2800 3005
800 900 1005 mA
470 560 645
3.5 (3)
μs
(1) Pulse-testing techniques maintain junction temperature close to ambient temperature; thermal effects must be taken into account
separately.
(2) Not production tested.
(3) These parameters are provided for reference only, and do not constitute part of TI's published specifications for purposes of TI's product
warranty.
Copyright © 2011–2012, Texas Instruments Incorporated
3



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