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Power Switches. TPS2561A-Q1 Datasheet

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Power Switches. TPS2561A-Q1 Datasheet






TPS2561A-Q1 Switches. Datasheet pdf. Equivalent




TPS2561A-Q1 Switches. Datasheet pdf. Equivalent





Part

TPS2561A-Q1

Description

Dual Channel Precision Automotive Adjustable Current-Limited Power Switches



Feature


Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPS2561A-Q1 SLVSCC6A – MAR CH 2014 – REVISED JUNE 2014 TPS2561A- Q1 Dual Channel Precision Automotive Ad justable Current-Limited Power Switches 1 Features •1 AEC-Q100 Qualified Device HBM ESD Classification Level H 2 – Device CDM ESD Classification Lev el C5 • Two separate current.
Manufacture

Texas Instruments

Datasheet
Download TPS2561A-Q1 Datasheet


Texas Instruments TPS2561A-Q1

TPS2561A-Q1; limiting channels • Meets USB Current -Limiting Requirements • Adjustable C urrent Limit, 250 mA–2.8 A (Typ.) • Accurate 2.1A Min / 2.5A Max Setting Fast Short Circuit Response - 3.5-μ s (typ) • Two 44-mΩ High-Side MOSFE Ts • Operating Range: 2.5 V to 6.5 V • 2-μA Maximum Standby Supply Curren t • Built-in Soft-Start • 15 kV / 8 kV System-Level ESD Capable 2 Application.


Texas Instruments TPS2561A-Q1

s Automotive USB Charging Ports 3 Descr iption The TPS2561A-Q1 is dual-channel power-distribution switch intended for automotive applications where precision current limiting is required or heavy capacitive loads and short circuits are encountered. These devices offer a pro grammable current-limit threshold betwe en 250 mA and 2.8 A (typ) per channel v ia an external res.


Texas Instruments TPS2561A-Q1

istor. The power-switch rise and fall ti mes are controlled to minimize current surges during turn on/off. Each channel of the TPS2561A-Q1 devices limits the output current to a safe level by switc hing into a constant-current mode when the output load exceeds the current-lim it threshold. The FAULTx logic output f or each channel independently asserts l ow during overcurr.

Part

TPS2561A-Q1

Description

Dual Channel Precision Automotive Adjustable Current-Limited Power Switches



Feature


Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPS2561A-Q1 SLVSCC6A – MAR CH 2014 – REVISED JUNE 2014 TPS2561A- Q1 Dual Channel Precision Automotive Ad justable Current-Limited Power Switches 1 Features •1 AEC-Q100 Qualified Device HBM ESD Classification Level H 2 – Device CDM ESD Classification Lev el C5 • Two separate current.
Manufacture

Texas Instruments

Datasheet
Download TPS2561A-Q1 Datasheet




 TPS2561A-Q1
Product
Folder
Sample &
Buy
Technical
Documents
Tools &
Software
Support &
Community
TPS2561A-Q1
SLVSCC6A – MARCH 2014 – REVISED JUNE 2014
TPS2561A-Q1 Dual Channel Precision Automotive Adjustable
Current-Limited Power Switches
1 Features
1 AEC-Q100 Qualified
– Device HBM ESD Classification Level H2
– Device CDM ESD Classification Level C5
• Two separate current limiting channels
• Meets USB Current-Limiting Requirements
• Adjustable Current Limit, 250 mA–2.8 A (Typ.)
• Accurate 2.1A Min / 2.5A Max Setting
• Fast Short Circuit 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 / 8 kV System-Level ESD Capable
2 Applications
Automotive USB Charging Ports
3 Description
The TPS2561A-Q1 is dual-channel power-distribution
switch intended for automotive 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 via an external resistor. The power-switch
rise and fall times are controlled to minimize current
surges during turn on/off.
Each channel of the TPS2561A-Q1 devices 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.
Use with the TPS2511-Q or TPS2513A-Q1 for a low
loss, automotive qualified, USB Charging Port
Solution capable of charging all of today's popular
phones and tablets.
PART NUMBER
TPS2561A-Q1
Device Information
PACKAGE
BODY SIZE (NOM)
SON (10)
3.00mm x 3.00mm
spacer
spacer
Typical Application as Power Switch of Dual Port Automotive USB Charge Port Solution
5VOUT
0.1­F
100kŸ 100kŸ
DC to DC
Controller or converter
(LM25117-Q1,
TPS40170-Q1)
Control Signal
Control Signal
COUT
OUT1
IN
IN
OUT2
TPS2561A-Q1
RILIM
FAULT2
ILIM
FAULT1
EN1
EN2 PowerPad GND
VIN
DM1
DP1
TPS2513A-Q1
DM2
GND
DP2
USB
Connector1
VBUS
D-
D+
CUSB
GND
USB
Connector2
VBUS
D-
D+
GND
CUSB
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.




 TPS2561A-Q1
TPS2561A-Q1
SLVSCC6A – MARCH 2014 – REVISED JUNE 2014
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Device Comparison Table..................................... 3
6 Pin Functions and Configurations ....................... 3
7 Specifications......................................................... 4
7.1 Absolute Maximum Ratings ...................................... 4
7.2 Handling Ratings....................................................... 4
7.3 Recommended Operating Conditions....................... 4
7.4 Thermal Information .................................................. 4
7.5 Electrical Characteristics........................................... 5
7.6 Typical Characteristics .............................................. 6
8 Parameter Measurement Information .................. 7
9 Detailed Description .............................................. 9
9.1 Overview ................................................................... 9
9.2 Functional Block Diagram ......................................... 9
9.3 Feature Description................................................... 9
9.4 Device Functional Mode ......................................... 10
10 Application and Implementation........................ 11
10.1 Application Information.......................................... 11
10.2 Typical Application ................................................ 11
11 Power Supply Requirements ............................. 17
12 Layout................................................................... 18
12.1 Layout Guidelines ................................................. 18
12.2 Layout Example .................................................... 18
13 Device and Documentation Support ................. 19
13.1 Trademarks ........................................................... 19
13.2 Electrostatic Discharge Caution ............................ 19
13.3 Glossary ................................................................ 19
14 Mechanical, Packaging, and Orderable
Information ........................................................... 19
4 Revision History
Changes from Original (March 2014) to Revision A
Page
• Changed Feature From: Accurate 2.1A Min / 2.5A Max Setting (Including Resistor) To: Accurate 2.1A Min / 2.5A
Max Setting............................................................................................................................................................................. 1
• Changed IOS, Current-limit. to include additional RILIM values. .............................................................................................. 5
• Changed Equation 1 ............................................................................................................................................................ 11
• Changed the Designing Above a Minimum Current Limit section........................................................................................ 12
• Changed the Designing Below a Maximum Current Limit section ....................................................................................... 13
2
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Copyright © 2014, Texas Instruments Incorporated




 TPS2561A-Q1
www.ti.com
5 Device Comparison Table
DEVICE
TPS2556-Q1
TPS2557-Q1
TPS2561A-Q1
MAXIMUM OPERATING
CURRENT (A)
5
5
2.5
OUTPUTS
1
1
2
TPS2561A-Q1
SLVSCC6A – MARCH 2014 – REVISED JUNE 2014
ENABLES
Active-low
Active-high
Active-high
TYPICAL RDS(on) (m)
22
22
44
PACKAGE
SON-8 (DRB)
SON-8 (DRB)
SON-10 (DRC)
6 Pin Functions and Configurations
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
NAME
EN1
EN2
GND
IN
FAULT1
FAULT2
OUT1
OUT2
ILIM
PowerPAD™
PIN
NUMBER
4
5
1
2, 3
10
6
9
8
7
PAD
Pin Functions
I/O
DESCRIPTION
I
Enable input, logic high turns on channel one power switch
I
Enable input, logic high turns on channel two power switch
Ground connection; connect externally to PowerPAD
I
Input voltage; connect a 0.1 μF or greater ceramic capacitor from IN to GND
as close to the IC as possible.
O Active-low open-drain output, asserted during overcurrent or overtemperature
condition on channel one.
O Active-low open-drain output, asserted during overcurrent or overtemperature
condition on channel two
O Power-switch output for channel one
O Power-switch output for channel two
O External resistor used to set current-limit threshold; recommended 20 kΩ ≤
RILIM 187 k.
Internally connected to GND; used to heat-sink the part to the circuit board
traces. Connect PowerPAD to GND pin externally.
Copyright © 2014, Texas Instruments Incorporated
Product Folder Links: TPS2561A-Q1
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3



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