參數(shù)資料
型號: ADM4210-2AUJZ-RL7
廠商: Analog Devices Inc
文件頁數(shù): 1/16頁
文件大小: 278K
描述: IC CTLR HOTSWAP LV TSOT23-6
產(chǎn)品培訓模塊: Hot Swap Design
標準包裝: 1
類型: 熱交換控制器
應用: 通用
內(nèi)部開關:
電源電壓: 2.7 V ~ 16.5 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: SOT-23-6 細型,TSOT-23-6
供應商設備封裝: TSOT-6
包裝: 標準包裝
其它名稱: ADM4210-2AUJZ-RL7DKR
 
Hot Swap Controller
in 6-Lead TSOT Package
Data Sheet
ADM4210
 
 
Rev. A 
Document Feedback
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
 
 
 
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ?0062013 Analog Devices, Inc. All rights reserved.
Technical Support 
www.analog.com  
FEATURES
Controls supply rails from 2.7 V to 16.5 V
Allows protected board removal and insertion to a live
backplane
External sense resistor provides adjustable analog current
limit with circuit breaker
Peak fault current limited with fast response
Charge pumped gate drive for external N-FET switch
Automatic retry or latch-off during current fault
Undervoltage lockout
Low profile (1 mm), 6-lead, TSOT package
Pin compatible with LTC4210-1 and LTC4210-2
APPLICATIONS
Hot swap board insertion: line cards, raid systems
Industrial high-side switches/circuit breakers
Electronic circuit breakers
GENERAL DESCRIPTION
The ADM4210 is a hot swap controller that safely enables a
printed circuit board to be removed and inserted to a live
backplane. This is achieved using an external N-channel power
MOSFET with a current control loop that monitors the load
current through a sense resistor. An internal charge pump is
used to enhance the gate of the N-channel FET. When an
overcurrent condition is detected, the gate voltage of the FET is
reduced to limit the current flowing through the sense resistor.
During an overcurrent condition, the TIMER cap determines
the amount of time the FET remains at a current limiting mode
of operation until it is shut down. The ON (ON-CLR
) pin is the
enable input for the device and can be used to monitor the
input supply voltage. The ADM4210 operates with a supply
voltage ranging from 2.7 V to 16.5 V.
The ADM4210 is available in two options: the ADM4210-1 with
automatic retry for overcurrent fault and the ADM4210-2 with
latch off for an overcurrent fault. Toggling the ON (ON-CLR
)
pin resets a latched fault. The ADM4210 is packaged in a
6-lead TSOT.
FUNCTIONAL BLOCK DIAGRAM
LONG
V
IN
 = 5V
V
OUT
 = 5V
V
CC
R
SENSE
0.01&
Q
1
C
TIMER
0.22礔
C
TIMER
GATE
LONG
1.3V
SHORT
SENSE
GATE
DRIVE/
LOGIC
ON
TIMER
ADM4210
GND
GND
GND
R
ON1
20k&
R
G
100&
R
C
100&
C
C
0.01礔
R
ON2
10k&
C
LOAD
470礔
+
 
Figure 1.
10ms/DIV
V
ON
(2V/DIV)
V
TIMER
(1V/DIV)
V
OUT
(5V/DIV)
I
OUT
(0.5A/DIV)
C
LOAD
 = 470礔
 
Figure 2. Start-Up Sequence
 
 
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