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TPS2070 Datasheet(PDF) 1 Page - Texas Instruments

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Part No. TPS2070
Description  FOUR-PORT USB HUB POWER CONTROLLERS
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TPS2070 Datasheet(HTML) 1 Page - Texas Instruments

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TPS2070, TPS2071
FOUR-PORT USB HUB POWER CONTROLLERS
SLVS287A – SEPTEMBER 2000 – REVISED FEBRUARY 2001
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D Complete USB Hub Power Solution
D Meets USB Specifications 1.1 and 2.0
D Independent Thermal and Short-Circuit
Protection
D 3.3-V Regulator for USB Hub Controller
D Overcurrent Logic Outputs
D 4.5-V to 5.5-V Operating Range
D CMOS- and TTL-Compatible Enable Inputs
D 185 µA Bus-Power Supply Current
D Available in 32-Pin HTSSOP PowerPAD
D –40°C to 85°C Ambient Temperature Range
description
The TPS2070 and TPS2071 provide a complete
USB hub power solution by incorporating four
major functions: current-limited power switches
for four ports, a 3.3-V 100-mA regulator, a 5-V
regulator controller for self power, and a DP0 line
control to signal attach/detach of the hub.
These devices are designed to meet bus-pow-
ered and self-powered hub requirements. These
devices are also designed for hybrid hub
implementations and allow for automatic switch-
ing from self-powered mode to bus-powered
mode if loss of self-power is experienced (can be
disabled by applying a logic high to BP_DIS).
Each port has a current-limited 107-m
Ω N-
channel MOSFET high-side power switch for
500 mA self-powered operation. Each port also
has a current-limited 560-m
Ω N-channel MOS-
FET high-side power switch for 100-mA bus-pow-
ered operation. All the N-channel MOSFETs are
designed without parasitic diodes, preventing
current backflow into the inputs.
For applications not requiring a 5-V regulator
controller, use the TPS2074 or TPS2075 device.
SELECTION GUIDE
TA
USB HUB POWER CONTROLLERS
PACKAGED DEVICES
TA
USB HUB POWER CONTROLLERS
PIN COUNT
BPMODE
HTSSOP (DAP)†
SSOP (DB)
Four port with internal LDO controller
32
Active low
TPS2070DAP
40
°Cto85°C
Four-port with internal LDO controller
32
Active high
TPS2071DAP
– 40
°C to 85°C
Four port without internal LDO controller
24
Active low
TPS2074DB
Four-port without internal LDO controller
24
Active high
TPS2075DB
† The DAP package is available taped and reeled. Add an R suffix to the device type (e.g., TPS2070DAPR).
PowerPAD is a trademark of Texas Instruments.
Copyright
 2001, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
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.
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32
31
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24
23
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21
20
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18
17
NC
EN1
AGND
NC
PG
SP
SP
NC
VEXT
GATE
3.3V_OUT
BPMODE
DP0_RST
EN_REG
EN2
DGND
PG_DLY
BP_DIS
BP
OUT1
OUT2
OUT3
OUT4
OC4
OC3
OC2
OC1
EN4
EN3
CP_M
CP_P
VCP
NC – No internal connection
† Pin 12 is active low (BPMODE) for TPS2070 and
active high (BPMODE) for TPS2071.
SP
GATE
VEXT
DP0_RST
BP
DP0
DM0
Power
Supply
D+
D–
5 V
GND
1.5
k
Upstream
Port
3.3 V_OUT
BPMODE
D+
D–
5 V
GND
D+
D–
5 V
GND
D+
D–
5 V
GND
D+
D–
5 V
GND
OUT1
OUT2
OUT3
OUT4
DP1
DM1
DP2
DM2
DP3
DM3
DP4
DM4
Downstream
Ports
TPS2070
Hub
Controller
VCC EN OC
simplified hybrid-hub diagram
‡ See Figure 38 for complete implementation.
DAP PACKAGE
(TOP VIEW)


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