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| 型號： | ISP1760BE |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 總線控制器 |
| 英文描述： | Hi-Speed Universal Serial Bus host controller for embedded applications |
| 中文描述： | UNIVERSAL SERIAL BUS CONTROLLER, PQFP128 |
| 封裝： | 14 X 20 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT-425-1, LQFP-128 |
| 文件頁數(shù)： | 23/105頁 |
| 文件大小： | 449K |
| 代理商： | ISP1760BE |
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9397 750 13257
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet
Rev. 01 — 8 November 2004
23 of 105
Philips Semiconductors
ISP1760
Embedded Hi-Speed USB host controller
Additionally, the Power Down Control register allows the ISP1760 internal blocks to be
disabled for lower power consumption as defined in
Table 5
.
The lowest suspend current that can be achieved is approximately 100
μ
A at room
temperature. The suspend current will increase with the increase in temperature, with
approximately 300
μ
A at 40
°
C and up to a typical 1 mA at 85
°
C. The system is not in
suspend mode when its temperature increases above 40
°
C. Therefore, even a 1 mA
current consumption by the ISP1760 (in suspend mode) can be considered negligible. In
normal environmental conditions, when the system is in suspend mode, the maximum
ISP1760 temperature will be approximately 40
°
C (determined by the ambient
temperature) so the ISP1760 maximum suspend current will be below 300
μ
A. An
alternative solution to achieve a very low suspend current is to completely switch off the
V
CC(5V0)
power input by using an external PMOS transistor, controlled by one of the GPIO
pins of the processor. This is possible because the ISP1760 can be used in the hybrid
mode, which allows only the V
CC(I/O)
powered on to avoid loading of the system bus.
The time from wake-up to suspend will be approximately 100 ms when the ISP1760
power is always on.
It is necessary to wait for the CLK_RDY interrupt assertion before programming the
ISP1760 because internal clocks are stopped during deep-sleep suspend and restarted
after the first wake-up event. The occurrence of the CLK_RDY interrupt means that the
internal clocks are running and the normal functionality is achieved.
It is estimated that the CLK_RDY interrupt will be generated less than 100
μ
s after the
wake-up event, if the power to the ISP1760 was on during suspend.
If the ISP1760 is used in the hybrid mode and V
CC(5V0)
is off during suspend, a 2 ms reset
pulse is required when the power is switched back to on, before starting to program the
resume state. This will ensure that the internal clocks are running and all logics reach a
stable initial state.
7.7 Overcurrent detection
The ISP1760 can implement a digital or analog overcurrent detection scheme. Bit 15 of
the HW Mode Control register can be programmed to select the analog or digital
overcurrent detection. An analog overcurrent detection circuit is integrated on-chip. The
main features of this circuit are self reporting, automatic resetting, low-trip time and low
cost. This circuit offers an easy solution at no extra hardware cost on the board. The port
power will be automatically disabled by the ISP1760 on an overcurrent event occurrence,
by deasserting the PSWn_N signal without any software intervention.
When using the integrated analog overcurrent detection, the range of the overcurrent
detection voltage for the ISP1760 is 45 mV to 100 mV. Calculation of the external
components should be based on the 45 mV value, with the actual overcurrent detection
threshold usually positioned in the middle of the interval.
For an overcurrent limit of 500 mA per port, a PMOS with R
DSON
of approximately 100 m
is required. If a PMOS with a lower R
DSON
is used, analog overcurrent detection can be
adjusted using a series resistor; see
Figure 5
.
V
PMOS
=
V
TRIP
=
V
TRIP(intrinsic)
(I
OC(nom)
×
R
td
), where:
V
PMOS
= voltage drop on PMOS
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| ISP1760BE,518 | 功能描述:輸入/輸出控制器接口集成電路 USB HOST CONTROLLER RoHS:否 制造商:Silicon Labs 產品: 輸入/輸出端數(shù)量: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風格:SMD/SMT 封裝 / 箱體:QFN-64 封裝:Tray |
| ISP1760BE,551 | 功能描述:輸入/輸出控制器接口集成電路 USB HS HOST CONTRLLR RoHS:否 制造商:Silicon Labs 產品: 輸入/輸出端數(shù)量: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風格:SMD/SMT 封裝 / 箱體:QFN-64 封裝:Tray |
| ISP1760BE,557 | 功能描述:USB 接口集成電路 DO NOT USE ORDER -S OR -T PART RoHS:否 制造商:Cypress Semiconductor 產品: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 安裝風格:SMD/SMT 封裝 / 箱體:WLCSP-20 |
| ISP1760BE518 | 制造商:ST-Ericsson 功能描述:IC CONTROLLER USB HOST 128LQFP |
| ISP1760BEGA | 功能描述:IC USB CTRL HI-SPEED 128LQFP RoHS:是 類別:集成電路 (IC) >> 接口 - 控制器 系列:- 標準包裝: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 供應商設備封裝:36-QFN（6x6） 包裝:* 其它名稱:Q6396337A |
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