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參數(shù)資料
| 型號(hào)： | RT9702A |
| 英文描述： | Power Management/Switchers |
| 中文描述： | 電源管理/切換器 |
| 文件頁數(shù)： | 1/16頁 |
| 文件大小： | 240K |
| 代理商： | RT9702A |
Preliminary
RT9702/A
DS9702A-01 March 2003
www.richtek.com
1
80m
, 500mA/1.1A High-Side Power Switches with Flag
General Description
The RT9702 and RT9702A are cost-effective, low
voltage, single N-Channel MOSFET high-side power
switches, optimized for self-powered and bus-
powered Universal Serial Bus (USB) applications.
The RT9702/A equipped with a charge pump
circuitry to drive the internal MOSFET switch; the
switch’s low R
DS(ON)
, 80m
, meets USB voltage drop
requirements; and a flag output is available to
indicate fault conditions to the local USB controller.
Additional features include soft-start to limit inrush
current during plug-in, thermal shutdown to prevent
catastrophic switch failure from high-current loads,
under-voltage lockout (UVLO) to ensure that the
device remains off unless there is a valid input
voltage present, fault current is limited to typically
800mA for RT9702 in single port and 1.5A for
RT9702A in dual ports in accordance with the USB
power requirements, lower quiescent current as
25
μ
A making this device ideal for portable
battery-operated equipment.
The RT9702/A is available in SOT-25 package
requiring minimum board space and smallest
components.
Ordering Information
RT9702/A
Marking Information
For marking information, contact our sales
representative directly or through a RichTek
distributor located in your area, otherwise visit our
website for detail.
Features
z
Compliant to USB Specifications
z
Built-In (Typically 80m
) N-Channel MOSFET
z
Output Can Be Forced Higher Than Input
(Off-State)
z
Low Supply Current:
25
μ
A Typical at Switch On State
0.1
μ
A Typical at Switch Off State
z
Guaranteed 500mA/RT9702 and 1.1A/RT9702A
Continuous Load Current
z
Wide Input Voltage Ranges: 2V to 5.5V
z
Open-Drain Fault Flag Output
z
Hot Plug-In Application (Soft-Start)
z
1.7V Typical Under-Voltage Lockout (UVLO)
z
Current Limiting Protection
z
Thermal Shutdown Protection
z
Reverse Current Flow Blocking (no “body
diode)
z
Smallest SOT-25 Package Minimizes Board
Space
z
UL Approved – E219878
Applications
z
USB Bus/Self Powered Hubs
z
USB Peripherals
z
ACPI Power Distribution
z
PC Card Hot Swap
z
Notebook, Motherboard PCs
z
Battery-Powered Equipment
z
Hot-Plug Power Supplies
z
Battery-Charger Circuits
Pin Configurations
Part Number
Pin Configurations
4
RT9702/ACB
(Plastic SOT-25)
TOP VIEW
1.
CE
2.
GND
3.
FLG
4.
VIN
5.
VOUT
Package Type
B : SOT-25
Operating Temperature Range
C: Commercial Standard
1.1A Output Current
500mA Output Current
5
3
2
1
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| RT9702AGJ5 | 功能描述:IC PWR SW USB 1.1A TSOT-23-5 RoHS:是 類別:集成電路 (IC) >> PMIC - 電源分配開關(guān) 系列:- 特色產(chǎn)品:XRP252 Switches 標(biāo)準(zhǔn)包裝:1 系列:- 類型:高端開關(guān) 輸出數(shù):2 Rds（開）:140 毫歐 內(nèi)部開關(guān):是 電流限制:1.15A 輸入電壓:1.75 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:10-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:10-TDFN（3x3） 包裝:Digi-Reel® 其它名稱:1016-1691-6 |
| RT9702APB | 制造商:RICHTEK 制造商全稱:Richtek Technology Corporation 功能描述:80mヘ, 500mA/1.1A High-Side Power Switches with Flag |
| RT9702APJ5 | 制造商:RICHTEK 制造商全稱:Richtek Technology Corporation 功能描述:80mヘ, 500mA/1.1A High-Side Power Switches with Flag |
| RT9702GB | 功能描述:IC PWR SW USB 1.1A SOT23-5 RoHS:是 類別:集成電路 (IC) >> PMIC - 電源分配開關(guān) 系列:- 特色產(chǎn)品:XRP252 Switches 標(biāo)準(zhǔn)包裝:1 系列:- 類型:高端開關(guān) 輸出數(shù):2 Rds（開）:140 毫歐 內(nèi)部開關(guān):是 電流限制:1.15A 輸入電壓:1.75 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:10-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:10-TDFN（3x3） 包裝:Digi-Reel® 其它名稱:1016-1691-6 |
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