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NCP392DのメーカーはON Semiconductorです、この部品の機能は「Adjustable Front End Overvoltage Protection Controller」です。 |
部品番号 | NCP392D |
| |
部品説明 | Adjustable Front End Overvoltage Protection Controller | ||
メーカ | ON Semiconductor | ||
ロゴ | |||
このページの下部にプレビューとNCP392Dダウンロード(pdfファイル)リンクがあります。 Total 10 pages
NCP392D
Adjustable Front End
Overvoltage Protection
Controller with Protected
Vbus Output
The NCP392D is an overvoltage front end protection controller and
is able to disconnect the systems from its output pin in case wrong
input operating conditions are detected, up to +28 V. Thanks to this
device using internal NMOS, no external device is necessary, reducing
the system cost and the PCB area of the application board.
Internal OVLO threshold is available, or can be adjusted if an
external resistor bridge is used.
At power up (EN pin = low level), the Vout turns on tstart time after
internal timer elapsed.
The NCP392D features an ACOK pin that indicates faulty
condition.
Features
• Over−voltage Protection Up to + 28 V
• On−chip Low RDS(on) NMOS Transistors: Typical 34 mW
• Over−voltage Lockout (OVLO)
• Externally Adjustable OVLO
• Internal 15 ms Startup Delay
• Shutdown EN Input
• ACOK Status Pin
• + 100 V Surge Capability, in Compliance with IEC61000−4−5
Standard
• Compliance to IEC61000−4−2 (Level 4) Standard
8 kV (Contact)
15 kV (Air)
• ESD Ratings:
Machine Model = B (200 V)
Human Body Model = 2 (2 kV)
• CSP−12 Package 1.3 x 2.0 mm, 0.4 mm Pitch
• This is a Pb−Free Device
Typical Applications
• Cell Phones
• Tablets
• Camera Phones
• Digital Still Cameras
• Personal Digital Applications
www.onsemi.com
MARKING
DIAGRAM
WLCSP 12
FCC SUFFIX
CASE 567JM
392DR
AYWW
G
392DR = Specific Device Number
A = Assembly Location
Y = Year
WW = Work Week
G = Pb−Free Package
PIN CONNECTION
123
4
A
EN
OUT
OUT
PGND
B
ACOK
OUT
IN PGND
C
OVLO
IN
IN PGND
(Top View)
ORDERING INFORMATION
See detailed ordering, marking and shipping information on
page 9 of this data sheet.
© Semiconductor Components Industries, LLC, 2015
November, 2015 − Rev. 2
1
Publication Order Number:
NCP392D/D
1 Page NCP392D
PIN FUNCTION DESCRIPTION
123
4
A
EN
OUT
OUT
PGND
B
ACOK
OUT
IN PGND
C
OVLO
IN
IN PGND
(Top View)
Figure 3. Pinout
Table 1. NCP392 PIN DESCRIPTION
Pin
Pin Name
Type
Description
A1 EN
I/O Enable pin bar.
The device enters in shutdown mode when this pin is tied to a high level. In this case the output is
disconnected from the input.
To allow normal functionality, the EN pin is tied low with internal pull down.
A2, A3, OUT
B2
OUTPUT
Output voltage pins.
These pins follow IN pins, with debounce time, when “no fault” are detected.
The outputs are disconnected from the Vin power supply when the input voltage is below UVLO,
above OVLO threshold or internal thermal protection is exceeded.
The three OUT pins must be hardwired together and used for power dissipation.
A4, B4, PGND
C4
POWER
Ground. The three GND pins must be hardwired together and connect to the system GND.
B1 ACOK OUTPUT ACOK pin: fault indication pin. Open drain. This pied in tied
low if Vin is within UVLO and OVLO range.
1 VIN < VUVLO or VIN ≥ VOVLO
0 Voltage stable
B3, C2,
C3
IN
POWER
Input voltage pins.
These pins are connected to the power supply.
The three IN pins must be hardwired together.
C1 OVLO INPUT External OVLO Adjustment. Connect external resistor bridge to OVLO pin to select a different OVLO
threshold. Connect OVLO pin to GND if not used. In this case internal OVLO will be selected.
www.onsemi.com
3
3Pages NCP392D
Operation
The NCP392D provides over−voltage protection for
positive voltage surge, up to + 28 V. An additional clamp,
between IN and GND, protects the part against surge test, in
compliance with IEC 61000−4−5 standard.
A ACOK open drain fault indicator is provided. This
signal indicates whether input voltage is within the valid
range.
Under−voltage Lockout (UVLO)
To ensure proper operation under any conditions, the
device has a built−in under−voltage lock out (UVLO)
circuit. This circuit has a built−in hysteresis to provide noise
immunity to transient conditions.
Over−voltage Lockout (OVLO)
To protect connected systems on Vout pin from
over−voltage, the device has a built−in over−voltage lock
out (OVLO) circuit. During over−voltage condition, the
output remains disabled until the input voltage is above
OVLO – hysteresis.
VIN
OVLO
UVLO
VOUT
/ EN
tVBUS
tSTART
tRISE
tSOFT
tOFF
t START
tRISE
tSOFT
tOFF
Figure 4. UVLO, OVLO and EN Functionality
www.onsemi.com
6
6 Page | |||
ページ | 合計 : 10 ページ | ||
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PDF ダウンロード | [ NCP392D データシート.PDF ] |
データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。 |
部品番号 | 部品説明 | メーカ |
NCP392A | Adjustable Front End Overvoltage Protection Controller | ON Semiconductor |
NCP392B | Adjustable Front End Overvoltage Protection Controller | ON Semiconductor |
NCP392D | Adjustable Front End Overvoltage Protection Controller | ON Semiconductor |