TPS2561A-Q1 Datasheet, PDF (1/27 Pages) Texas Instruments – Dual Channel Precision Automotive Adjustable Current-Limited Power Switches

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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-mΩ High-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
C_OUT
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.