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Details, datasheet, quote on part number:TPS2071DAPR
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| Part: | TPS2071DAPR |
| Category: | Power Management => Power Distribution/Switches => USB Power Controllers/Switches => USB Power Controllers |
| Description: | ti TPS2071, PWR Controller For Bus/self PWRD Hub w/ 5V LDO Control, 3.3V LDO, 8 PWR Switches Act-hi Bpmode Ind |
| Company: | Texas Instruments, Inc. |
| Datasheet: | Download TPS2071DAPR datasheet File size : 460 kB |
| Request For quote: | Find where to buy TPS2071DAPR
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Datasheet text preview:
TPS2070, TPS2071 FOUR-PORT USB HUB POWER CONTROLLERS
SLVS287A SEPTEMBER 2000 REVISED FEBRUARY 2001
D D D D D D D D D D
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 40°C to 85°C Ambient Temperature Range
DAP PACKAGE (TOP VIEW)
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-m Nchannel MOSFET high-side power switch for 500 mA self-powered operation. Each port also has a current-limited 560-m 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.
NC EN1 AGND NC PG SP SP NC VEXT GATE 3.3V_OUT BPMODE DP0_RST EN_REG EN2 DGND
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17
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.
simplified hybrid-hub diagram
D+ D SP GATE Power Supply TPS2070 VEXT DP0_RST BP 3.3 V_OUT 1.5 k OUT1 OUT2 OUT3 OUT4 BPMODE D+ D 5V GND 5V GND
Downstream Ports VCC EN OC DP1 DM1 DP2 DM2 DP3 DM3 DP4 DM4 D+ D 5V GND
Upstream Port D+ D 5V GND
DP0 DM0 Hub Controller
D+ D 5V GND
See Figure 38 for complete implementation.
SELECTION GUIDE TA USB HUB POWER CONTROLLERS HUB POWER CONTROLLERS Four-port with internal LDO controller with internal LDO controller 40°C to 85°C to 85°C Four-port without internal LDO controller without internal LDO controller 24 PACKAGED DEVICES PIN COUNT 32 BPMODE Active low Active high Active low HTSSOP (DAP) TPS2070DAP TPS2071DAP -- -- SSOP (DB) -- -- TPS2074DB TPS2075DB
Active high The DAP package is available taped and reeled. Add an R suffix to the device type (e.g., TPS2070DAPR).
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.
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.
Copyright 2001, Texas Instruments Incorporated
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
1
TPS2070, TPS2071 FOUR-PORT USB HUB POWER CONTROLLERS
SLVS287A SEPTEMBER 2000 REVISED FEBRUARY 2001
functional block diagram
3.3 V/100 mA LDO
3.3 V_OUT PG PG_DLY
BP S1 OUT1 SP SP S2
S3 OUT2
S4
S5 OUT3
S6
S7 OUT4
S8 DPO_RST BP_DIS AGND DGND Control Logic EN1 OC1 EN2 OC2 EN3 OC3 EN4 GATE VEXT LDO Controller OC4 BPMODE (TPS2070) BPMODE (TPS2071)
VCP
CP_P
CP_M EN_REG
2
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
TPS2070, TPS2071 FOUR-PORT USB HUB POWER CONTROLLERS
SLVS287A SEPTEMBER 2000 REVISED FEBRUARY 2001
Terminal Functions
TERMINAL NAME NC EN1 AGND NC PG SP SP NC VEXT GATE 3.3V_OUT BPMODE DP0_RST EN_REG EN2 DGND VCP CP_P CP_M EN3 EN4 OC1 OC2 OC3 OC4 OUT4 OUT3 OUT2 OUT1 BP BP_DIS NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 I I O O O O O O O O I I I O O O O I I O I I I I/O No internal connection Active-low enable for OUT1 Analog ground No internal connection Logic output, power good Self-power voltage input, connects to local power supply Self-power voltage input, connects to local power supply No internal connection Input voltage for the external voltage regulator Output gate drive for an external N-channel MOSFET 3.3-V internal voltage regulator output A logic signal that indicates if the outputs source from the bus-powered supply. BPMODE (TPS2070) or BPMODE (TPS2071) can be used to signal hub controller. Connects to DP signal from upstream hub/host through an external 1.5-k resistor Active-high enable, enables external voltage regulator. Connect to BP or GND Active-low enable for OUT2 Digital ground Charge-pump output, source for an external voltage-regulator driver. Recommend 0.1-µF capacitor to DGND. Charge-pump-capacitor connection from CP_M. Recommend 0.01-µF between CP_P and CP_M. Charge-pump-capacitor connection from CP_P. Recommend 0.01-µ between CP_P and CP_M. Active-low enable for OUT3 Active-low enable for OUT4 Logic output, overcurrent response for OUT1 Logic output, overcurrent response for OUT2 Logic output, overcurrent response for OUT3 Logic output, overcurrent response for OUT4 Power switch output for downstream ports Power switch output for downstream ports Power switch output for downstream ports Power switch output for downstream ports Bus power voltage input, connect to VBUS Active-high logic input, disables autoswitch to bus power when self power is disconnected. Connect to BP or GND DESCRIPTION
PG_DLY 32 Adjusts the PG time delay with a capacitor to ground. Adjust the pulsewidth to fit the application. Pin 12 is active low for TPS2070 and active high for TPS2071. Use the following formula to calculate the capacitance needed; C = (desired pulsewidth × 3 × 106)/1.22
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
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