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TPS2070
TPS2071
SLVS287B – SEPTEMBER 2000 – REVISED SEPTEMBER 2007
FOUR-PORT USB HUB POWER CONTROLLERS
FEATURES
1
•2 Complete USB Hub Power Solution
• Meets USB Specifications 1.1 and 2.0
• Independent Thermal and Short-Circuit
Protection
• 3.3-V Regulator for USB Hub Controller
• Overcurrent Logic Outputs
• 4.5-V to 5.5-V Operating Range
• CMOS- and TTL-Compatible Enable Inputs
• 185 μA Bus-Power Supply Current
• Available in 32-Pin HTSSOP PowerPAD™
Package
• –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-powered
and self-powered hub requirements. These devices
are also designed for hybrid hub implementations and
allow for automatic switching 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-mΩ N-channel
MOSFET high-side power switch for 500-mA
self-powered operation. Each port also has a
current-limited 560-mΩ N-channel MOSFET high-side
power switch for 100-mA bus-powered 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.
DAP Package
(Top View)
NC
EN1
AGND
NC
PG
SP
SP
NC
VEXT
GATE
3.3V_OUT
BPMODE(1)
DP0_RST
EN_REG
EN2
DGND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
32 PG_DLY
31 BP_DIS
30 BP
29 OUT1
28 OUT2
27 OUT3
26 OUT4
25 OC4
24 OC3
23 OC2
22 OC1
21 EN4
20 EN3
19 CP_M
18 CP_P
17 VCP
NC - No internal connection
(1) Pin 12 is active-low (BPMODE) for
TSS2070 and active-high (BPMODE) for
TPS2071.(1)
P0073-01
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 © 2000–2007, Texas Instruments Incorporated
