參數(shù)資料
型號: ISP1161BM
廠商: NXP SEMICONDUCTORS
元件分類: 總線控制器
英文描述: Full-speed Universal Serial Bus single-chip host and device controller
中文描述: UNIVERSAL SERIAL BUS CONTROLLER, PQFP64
封裝: 7 X 7 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT-414-1, LQFP-64
文件頁數(shù): 37/127頁
文件大?。?/td> 2762K
代理商: ISP1161BM
Philips Semiconductors
ISP1161
Full-speed USB single-chip host and device controller
Product data
Rev. 01 — 3 July 2001
37 of 130
9397 750 08313
Philips Electronics N.V. 2001. All rights reserved.
9.8 Overcurrent detection and power switching control
A downstream port provides +5 V power supply to the V
BUS
. The ISP1161 has built-in
hardware functions to monitor the downstream ports loading conditions and control
their power switching. These hardware functions are implemented by the internal
power switching control circuit and overcurrent detection circuit. H_PSW1 and
H_PSW2 are power switching control output pins (active LOW, open drain) for
downstream port 1 and 2, respectively. H_OC1 and H_OC2 are overcurrent detection
input pins for downstream ports 1 and 2, respectively. Let H_PSWn denote either
H_PSW1 or H_PSW2 and H_OCn denote either H_OC1 or H_OC2.
Figure 34
shows the ISP1161 downstream port power management scheme.
Using either internal or external 15 k
resistors.
Fig 33. Use of 15 k
pull-down resistors on downstream ports.
MGT957
22
22
bit 12
HcHardware
Configuration
ISP1161
USB
connector
D
D
+
VBUS
internal
15 k
(2
×
)
external
15 k
(2
×
)
47 pF
(2
×
)
Fig 34. Downstream port power management scheme.
MGT959
1
0
Reg
bit 10
PSW
OC select
OC detect
regulator
H_OCn
H_PSWn
HC CORE
C/L
ISP1161
VCC
(
+
5 V or
+
3.3 V)
HcHardware
Configuration
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ISP1181 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Full-speed Universal Serial Bus interface device
ISP1181A 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Full-speed Universal Serial Bus peripheral controller
ISP1181ABS 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Full-speed Universal Serial Bus peripheral controller
ISP1181ABS,518 功能描述:USB 接口集成電路 USB 1.1 ADV DEVICE 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
ISP1181ABS,551 功能描述:USB 接口集成電路 USB 1.1 ADVANCED DEVICE 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