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TPS2070_07

更新时间: 2024-11-08 04:48:55
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德州仪器 - TI 功率控制控制器
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31页 689K
描述
FOUR-PORT USB HUB POWER CONTROLLERS

TPS2070_07 数据手册

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TPS2070, TPS2071  
FOUR-PORT USB HUB POWER CONTROLLERS  
SLVS287A – SEPTEMBER 2000 – REVISED FEBRUARY 2001  
DAP PACKAGE  
(TOP VIEW)  
Complete USB Hub Power Solution  
Meets USB Specifications 1.1 and 2.0  
1
32  
31  
30  
29  
28  
27  
26  
25  
24  
23  
22  
21  
20  
19  
18  
17  
NC  
EN1  
AGND  
NC  
PG_DLY  
BP_DIS  
BP  
OUT1  
OUT2  
OUT3  
OUT4  
OC4  
OC3  
OC2  
OC1  
EN4  
Independent Thermal and Short-Circuit  
Protection  
2
3
3.3-V Regulator for USB Hub Controller  
Overcurrent Logic Outputs  
4
5
PG  
SP  
SP  
NC  
6
4.5-V to 5.5-V Operating Range  
7
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  
8
9
VEXT  
GATE  
3.3V_OUT  
10  
11  
12  
13  
14  
15  
16  
BPMODE  
DP0_RST  
EN_REG  
EN2  
EN3  
description  
CP_M  
CP_P  
VCP  
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.  
DGND  
NC – No internal connection  
Pin 12 is active low (BPMODE) for TPS2070 and  
active high (BPMODE) for TPS2071.  
simplified hybrid-hub diagram  
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).  
D+  
D–  
OUT1  
SP  
5 V  
GND  
GATE  
OUT2  
TPS2070  
Power  
Supply  
D+  
D–  
VEXT  
OUT3  
DP0_RST  
BP  
5 V  
OUT4  
GND  
3.3 V_OUT  
BPMODE  
Each port has a current-limited 107-mN-  
channel MOSFET high-side power switch for  
500 mA self-powered operation. Each port also  
has a current-limited 560-mN-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.  
1.5  
k  
Downstream  
Ports  
D+  
D–  
Upstream  
Port  
V
EN OC  
DP1  
DM1  
CC  
5 V  
DP2  
DM2  
DP3  
DM3  
DP4  
DM4  
GND  
DP0  
DM0  
D+  
D–  
Hub  
Controller  
5 V  
D+  
D–  
GND  
5 V  
For applications not requiring a 5-V regulator  
controller, use the TPS2074 or TPS2075 device.  
GND  
See Figure 38 for complete implementation.  
SELECTION GUIDE  
PACKAGED DEVICES  
T
A
USB HUB POWER CONTROLLERS  
PIN COUNT  
BPMODE HTSSOP (DAP)  
SSOP (DB)  
Active low  
Active high  
Active low  
Active high  
TPS2070DAP  
Four-port with internal LDO controller  
Four-port without internal LDO controller  
32  
24  
TPS2071DAP  
40°C to 85°C  
TPS2074DB  
TPS2075DB  
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.  
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.  
1
POST OFFICE BOX 655303 DALLAS, TEXAS 75265  

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