參數(shù)資料
型號(hào)： ISP1160BD/01,151
廠商： ST-ERICSSON
元件分類： 總線控制器
英文描述： UNIVERSAL SERIAL BUS CONTROLLER, PQFP64
封裝： 10 X 10 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT-314-2, LQFP-64
文件頁(yè)數(shù)： 27/88頁(yè)
文件大?。?/td> 394K
代理商： ISP1160BD/01,151
Philips Semiconductors
ISP1160
Embedded USB Host Controller
Product data
Rev. 05 — 24 December 2004
33 of 88
9397 750 13963
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
9.8.1
Using an internal OC detection circuit
The internal OC detection circuit can be used only when VCC (pin 56) is connected to
a 5 V power supply. The HCD must set AnalogOCEnable, bit 10 of the
HcHardwareConguration register, to logic 1.
An application using the internal OC detection circuit and internal 15 k
pull-down
resistors is shown in Figure 26. In this example, the HCD must set both
AnalogOCEnable and DownstreamPort15Kresistorsel to logic 1. They are bit 10 and
bit 12 of the HcHardwareConguration register, respectively.
When H_OCn_N detects an overcurrent status on a downstream port, H_PSWn_N
will output HIGH, a logic 1 to turn off the 5 V power supply to the downstream port
VBUS. When there is no such detection, H_PSWn_N will output LOW, a logic 0 to turn
on the 5 V power supply to the downstream port VBUS.
In general applications, a P-channel MOSFET can be used as the power switch for
VBUS. Connect the 5 V power supply to the source of the P-channel MOSFET, VBUS to
the drain, and H_PSWn_N to the gate. Call the voltage drop across the drain and
source, the overcurrent detection voltage (VOC). For the internal overcurrent detection
circuit, a voltage comparator has been designed-in, with a nominal voltage threshold
(
V
trip) of 75 mV. When VOC exceeds Vtrip, H_PSWn_N will output a HIGH level,
logic 1 to turn off the P-channel MOSFET. If the P-channel MOSFET has a RDSon of
150 m
, the overcurrent threshold will be 500 mA. The selection of a P-channel
MOSFET with a different RDSon will result in a different overcurrent threshold.
’n’ represents the downstream port number (n=1or2).
Fig 26. Using an internal OC detection circuit.
004aaa066
ATX
1
≥
0
Reg
PSW
OC select
OC detect
regulator
VCC
H_OCn_N
VOC = +5 V VBUS
H_PSWn_N
H_DMn
H_DPn
HC CORE
C/L
SIE
USB
downstream
port
connector
15 k
(2
×)
47 pF
(2
×)
22
22
ISP1160
VBUS
+5 V
P-Channel
MOSFET
bit 10
bit 12
HcHardware
Configuration
HcHardware
Configuration
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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ISP1160BD01-S 功能描述:USB 接口集成電路 USB FULL SPEED HOST RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WLCSP-20
ISP1160BD01-T 功能描述:USB 接口集成電路 USB HOST CTRL FULL-SPD RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WLCSP-20
ISP1160BD01TM 功能描述:IC USB HOST CTRL FULL-SPD 64LQFP RoHS:是 類別:集成電路 (IC) >> 接口 - 控制器 系列:- 標(biāo)準(zhǔn)包裝:4,900 系列:- 控制器類型:USB 2.0 控制器 接口:串行 電源電壓:3 V ~ 3.6 V 電流 - 電源:135mA 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:36-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:36-QFN（6x6） 包裝:* 其它名稱:Q6396337A
ISP1160BM 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Embedded Universal Serial Bus Host Controller
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