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2525 PDF Datasheet ( 特性, スペック, ピン接続図 )

部品番号 2525
部品説明 USB POWER CONTROL SWITCHES
メーカ Allegro MicroSystems
ロゴ Allegro MicroSystems ロゴ 

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2525 Datasheet, 2525 PDF,ピン配置, 機能
2525 AND
2535
USB POWER CONTROL SWITCHES
A2525EM
The A2525EL/M and A2535EL/M are integrated high-side power
switches, optimized for self-powered and bus-powered Universal Serial
Bus (USB) applications. Few external components are necessary to
EN 1
8 OUT satisfy USB requirements. The A2525EL/EM ENABLE inputs are
FLG 2
7 IN
active high; the A2535EL/EM are active low.
All devices are ideally suited for USB applications. Each switch
GND 3
NC 6 NC
channel supplies up to 500 mA as required by USB peripheral devices.
NC 4 NC
NC 5 NC
YDwg. PP-070A
RNote that the A2525EM (DIP) and the
OA2525EL (SOIC) are electrically identical and
Tshare a common terminal number assignment.
FACABSOLUTE MAXIMUM RATINGS
Supply Voltage, VIN ..................... 6.0 V
TOutput Voltage, VOUT .................. 6.0 V
COutput Current,
IOUT ................. Internally Limited
AENABLE Voltage Range,
VEN ......................... –0.3 V to 10 V
TFault Flag Voltage, VFLG .............. 8.0 V
NFault Flag Current, IFLG ............. 50 mA
Package Power Dissipation,
OPD ................................. See Graph
Operating Temperature Range,
CTA .......................... -40°C to +85°C
In addition, the switch’s low on-resistance permits achieving the USB
voltage-drop requirements. Fault current is limited to typically
750 mA, satisfying the UL 25 VA safety requirements, and a flag
output is available to indicate a fault condition to the local USB
controller. Momentary voltage drops that may occur on the upstream
port when the switch is enabled in bus-powered applications is elimi-
nated by a “soft start” feature.
Additional features include thermal shutdown to prevent catastrophic
switch failure from high-current loads, undervoltage lockout to ensure
that the device remains OFF unless there is a valid input voltage
present, and 3.3 V and 5 V logic-compatible enable inputs.
These switches are provided in 8-pin mini-DIP (suffix ‘M’) and
8-lead SOIC (suffix ‘L’) packages.
Features
I 2.7 V to 5.8 V Input
I Up to 500 mA Continuous Load Current per Port
I 140 mMaximum ON-Resistance
I 1.25 A Maximum Short-Circuit Current Limit
I Individual Open-Drain Fault Flag Outputs
I 100 µA Typical ON-State Supply Current
I <1 µA Typical OFF-State Supply Current
I Outputs Can be Forced Higher Than Input (off-state)
I Thermal Shutdown
I 2.2 V Typical Undervoltage Lockout
I 0.6 ms Turn On (soft-start) and Fast Turn Off
Junction Temperature, TJ ....... +150°C*
Storage Temperature Range,
I A2525 (active-high) Improved Replacement for MIC2525-1
I A2535 (active-low) Improved Replacement for MIC2525-2
TS ........................... -65°C to 150°C
Applications
* Fault conditions that produce excessive
junction temperature will activate device
thermal shutdown circuitry. These conditions
can be tolerated but should be avoided.
I USB Hosts and Self-Powered Hubs
I USB Bus-Powered Hubs
I Hot Plug-In Power Supplies
I Battery-Charger Circuits

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