IC. TPS22986 Datasheet

TPS22986 Datasheet PDF


Part

TPS22986

Description

Supply Selection IC

Manufacture

etcTI

Page 26 Pages
Datasheet
Download TPS22986 Datasheet


TPS22986 Datasheet
TPS22986
www.ti.com
SLVSBS5A – JANUARY 2013 – REVISED DECEMBER 2013
Thunderbolt™ Supply Selection IC
Check for Samples: TPS22986
FEATURES
1
2 2.8 V to 19.8 V Input
• Auto Selects 3.3 V supply
• >10mA Low Power Switch
• >500mA High Power Switch
• Reverse Current Blocking from OUT to VDD
• Wake on UART Input Activity
• UART RX and TX Buffers
APPLICATIONS
• Thunderbolt™ Cables
• Notebook Computers
• Desktop Computers
• Power Management Systems
VDD1
VDD2
CPO
Charge
Pump
FET1
FET3
VDD (Internal)
RPUCFGOE
FET4
Logic
Core
CFG/OE
ENB
RESETZ
DESCRIPTION
The TPS22986 is a supply selection device for active
Thunderbolt™ cables. The device selects a 3.3V
input from two available supplies and connects the
chosen input to two outputs, OUTA and OUTB. When
a 3.3V supply is not present, the outputs become
high impedance.
The TPS22986 has two modes of operation, Normal
and Control. In Normal Mode, OUTA is always on
when a valid supply is present. OUTB is connected to
a valid supply when the ENB input is high.
In Control Mode, OUTA behaves the same as Normal
Mode and OUTB is controlled by a combination of
monitored inputs and valid supplies on VDD1 and
VDD2. When a valid VDD is available, the device
waits for a rising input on ENB and then disconnects
OUTB until the next falling RXH transition. Once the
next falling RXH transition occurs, the device
reconnects OUTB.
In either mode, when a valid VDD is not available, the
TPS22986 opens all switches and the outputs OUTA
and OUTB become high impedance. When the
connected VDD exceeds 3.6V, it is disconnected from
the outputs.
The TPS22986 is available in a 1.6mm x 1.6mm
WCSP package.
FET2
RXH
TXH
RXH
TXH
Level
Shifter
Level
Shifter
RXC
TXC
100k
Load
CDR and Microcontroller
RPDNORMAL
Typical Application
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.
Thunderbolt is a trademark of Intel Corporation.
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 © 2013, Texas Instruments Incorporated

TPS22986 Datasheet
TPS22986
SLVSBS5A – JANUARY 2013 – REVISED DECEMBER 2013
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.
Top View/Footprint
4321
Bump View
1234
D D4 D3 D2 D1 D
D D1 D2 D3 D4 D
C C4 C3 C2 C1 C
C C1 C2 C3 C4 C
B B4 B3 B2 B1 B
B B1 B2 B3 B4 B
A A4 A3 A2 A1 A
A A1 A2 A3 A4 A
4321
1234
Die Size: 1.6mm x 1.6mm
Bump Size: 0.25mm
Bump Pitch: 0.4mm
TPS22986 Pin Mapping (Top View)
4321
D
VDD1
VDD1
VDD2
VDD2
C
OUTA
OUTB
OUTB
GND
B
RXH
TXH RESETZ CPO
A
RXC
TXC
ENB
CFG/OE
Dissipation Ratings
PACKAGE
YFP
THERMAL RESISTANCE
θJA
95°C/W
THERMAL RESISTANCE(1)
θJB
63°C/W
POWER RATING
TA = 25°C
1050 mW
DERATING FACTOR
ABOVE(2) TA = 25°C
10.5 mW/°C
(1) Simulated with high-K board
(2) Maximum power dissipation is a function of TJ(max), θJA and TA. The maximum allowable power dissipation at any allowable ambient
temperature is PD = (TJ(max) – TA) / θJA.
2 Submit Documentation Feedback
Product Folder Links: TPS22986
Copyright © 2013, Texas Instruments Incorporated


Features Datasheet pdf TPS22986 www.ti.com SLVSBS5A – JANUA RY 2013 – REVISED DECEMBER 2013 Thun derbolt™ Supply Selection IC Check fo r Samples: TPS22986 FEATURES 1 •2 2. 8 V to 19.8 V Input • Auto Selects 3. 3 V supply • >10mA Low Power Switch >500mA High Power Switch • Reverse Current Blocking from OUT to VDD • W ake on UART Input Activity • UART RX and TX Buffers APPLICATIONS • Thunde rbolt™ Cables • Notebook Computers • Desktop Computers • Power Managem ent Systems VDD1 VDD2 VDD2 VDD1 CPO Charge Pump FET1 FET3 VDD (Internal ) RPUCFGOE FET4 Logic Core CFG/OE EN B RESETZ DESCRIPTION The TPS22986 is a supply selection device for active Thu nderbolt™ cables. The device selects a 3.3V input from two available supplie s and connects the chosen input to two outputs, OUTA and OUTB. When a 3.3V sup ply is not present, the outputs become high impedance. The TPS22986 has two mo des of operation, Normal and Control. I n Normal Mode, OUTA is always on when a valid supply is present. OUTB is connected to a valid s.
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