NCT3521U-A PDF даташит
Спецификация NCT3521U-A изготовлена «novoTon» и имеет функцию, называемую «High-side Power Distribution Switch». |
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Детали детали
Номер произв | NCT3521U-A |
Описание | High-side Power Distribution Switch |
Производители | novoTon |
логотип |
14 Pages
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High-side Power
Distribution Switch
NCT3521U-A
NCT3521U-2
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NCT3521U-A/U-2
-Table of Content-
1. GENERAL DESCRIPTION .................................................................................. 1
2. FEATURES ......................................................................................................... 1
3. APPLICATIONS .................................................................................................. 2
4. PIN CONFIGURATION AND DESCRIPTION...................................................... 2
5. TYPICAL APPLICATION CIRCUIT ..................................................................... 3
6. BLOCK DIAGRAM............................................................................................... 3
7. FUNCTIONAL DESCRIPTION ............................................................................ 4
8. ELECTRICAL CHARACTERISTICS.................................................................... 5
9. PACKAGE DIMENSION ...................................................................................... 7
10. ORDERING INFORMATION ............................................................................. 11
11. TOP MARKING SPECIFICATION ..................................................................... 11
12. REVISION HISTORY......................................................................................... 12
Publication Date: Nov., 2011
-I- Revision A1
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NCT3521U-A/U-2
1. GENERAL DESCRIPTION
The NCT3521 power switch is an integrated 80mΩ power switch IC designed for high-side
load switching applications.
The NCT3521 power switch operates with an input voltage range from 3.0 to 5.5V, making it
ideal for both 3V and 5V systems. The NCT3521 Power Switch also features an under-voltage
lock out which turns the switch off when an input under-voltage condition exists. The NCT3521
also have several protection that include current limiting, and thermal shutdown to prevent
catastrophic switch failure caused by increasing power dissipation when continuous heavy
loads or short circuit occurs. And a built-in charge pump is used to drive the N-channel
MOSFET that is free of parasitic body diode to eliminate any reversed current flow across the
switch when it is powered off. The NCT3521 features shutdown discharge function and soft-
start function, this makes the NCT3521 has slowly turn on and fast turn off features.
Its low quiescent current and small package is particularly suitable in battery-powered
equipment. In shutdown mode, the quiescent current decrease to less than 1uA.
2. FEATURES
z 80mΩ High-Side MOSFET
z Continues current up to 2A, Current trip threshold 2.5A
z Adjustable Soft-start (NCT3521U-2, SOT23-6 package)
z Operating Range from 2.7 to 5.5V
z 1.9mS Typical VOUT Turn-On Rise Time
z Under voltage Lockout
z 70uA Quiescent Supply Current
z 1uA Shutdown Current
z Active-High Enable Pin
z Fast response time at OCP
z Reverse Input-Output Voltage Protection
z Adjustable Shutdown Discharge
z Slowly turn on and fast turn off
z TSOT-23-5/ SOT-23-6 Lead Free (ROHS Compliant) and Halogen Free Package
Publication Date: Nov., 2011
-1- Revision A1
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Номер в каталоге | Описание | Производители |
NCT3521U-2 | High-side Power Distribution Switch | novoTon |
NCT3521U-A | High-side Power Distribution Switch | novoTon |
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