LTC1646CGN#PBF datasheet, PDF - EEWORLD Datasheet

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LTC1646CGN#PBF: DescriptionHot Swap Controller 2-CH 7V N-Channel Positive Low Voltage 16-Pin SSOP N Tube; File Size383KB，20 Pages; ManufacturerADI; Websitehttps://www.analog.com

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LTC1646CGN#PBF Overview

Hot Swap Controller 2-CH 7V N-Channel Positive Low Voltage 16-Pin SSOP N Tube

LTC1646CGN#PBF Parametric

Parameter Name	Attribute value
EU restricts the use of certain hazardous substances	Compliant
ECCN (US)	EAR99
Part Status	Active
HTS	8542.39.00.01
Type	Positive Low Voltage
Fault Management	Latched Off
External FET	N-Channel
Number of Channels	2
PGOOD Output Logic	Active Low
Minimum Operating Supply Voltage (V)	2.7
Maximum Operating Supply Voltage (V)	7
Typical Circuit Breaker Threshold Voltage (mV)	56
Maximum Supply Current (mA)	4
External Sense Resistor	Yes
Minimum Operating Temperature (°C)	0
Maximum Operating Temperature (°C)	70
Supplier Temperature Grade	Commercial
Packaging	Tube
Pin Count	16
Standard Package Name	SOP
Supplier Package	SSOP N
Mounting	Surface Mount
Package Height	1.5(Max)
Package Length	4.98(Max)
Package Width	3.99(Max)
PCB changed	16
Lead Shape	Gull-wing

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LTC1646

CompactPCI Dual

Hot Swap Controller

DESCRIPTIO

The LTC

1646 is a Hot Swap

controller that allows a

board to be safely inserted and removed from a live

CompactPCI bus slot. Two external N-Channel transistors

control the 3.3V and 5V supplies. The supplies can be

ramped-up in current limit or a programmable rate. Elec-

tronic circuit breakers protect both supplies against

overcurrent fault conditions. The PWRGD output indicates

when all of the supply voltages are within tolerance. The

OFF/ON pin is used to cycle the board power or reset the

circuit breaker. The PRECHARGE output can be used to

bias the bus I/O pins during card insertion and extraction.

PCI_RST# is logically combined on-chip with HEALTHY#

in order to generate LOCAL_PCI_RST# which can be used

to reset the CPCI card logic if either of the supply voltages

is not within tolerance.

The LTC1646 is available in the 16-pin narrow SSOP

package.

FEATURES

■

Allows Safe Board Insertion and Removal from a

Live, CompactPCI

Bus

Controls 3.3V and/or 5V Supplies

Programmable Foldback Current Limit During

Power-Up

Dual Level Circuit Breakers Protect Supplies from

Overcurrent and Short-Circuit Faults

LOCAL_PCI_RST# Logic On-Chip

PRECHARGE Output Biases I/O Pins During Card

Insertion and Extraction

User Programmable Supply Voltage Power-Up Rate

15V High Side Drive for External N-Channel

MOSFETS

PWRGD, RESETOUT and FAULT Outputs

APPLICATIO S

■

CompactPCI Bus Removable Boards

, LTC and LT are registered trademarks of Linear Technology Corporation.

Hot Swap is a trademark of Linear Technology Corporation.

All other trademarks are the property of their respective owners.

TYPICAL APPLICATIO

COMPACT PCI

BACKPLANE

CONNECTOR

(MALE)

COMPACT PCI

CIRCUIT CARD

CONNECTOR

(FEMALE)

2.7Ω

0.007Ω

0.005Ω, 1%

IRF7413

LONG 5V

3.3V

1.8Ω

LONG 3.3V

V(I/O)

0.1µF

10Ω

SENSE

GATE 3V

OUT

SENSE

1.2k

BD_SEL#

V(I/O)

HEALTHY#

PCI_RST#

OFF/ON

FAULT

LTC1646

PWRGD

RESETIN

GND

PRECHARGE

18Ω

4.7nF

18Ω

DRIVE

12Ω

LOCAL_PCI_RST#

GROUND

10k

10Ω

I/O PIN 1

DATA BUS

Z1, Z2: BZX84C6V2

PRECHARGE OUT

±10%

OUT

55mA

MMBT2222A

DATA LINE EXAMPLE

DATA BUS

Figure 1

3.3V

7.6A

10Ω

OUT

TIMER

1k, 5%

0.01µF

10k

0.1µF

OUT

RESETOUT

3.3V

RESET#

I/O

PCI

BRIDGE

(21154)

1646 F01

1646fa

LTC1646CGN#PBF Related Products

	LTC1646CGN#PBF	LTC1646CGN#TR	LTC1646CGN#TRPBF	LTC1646CGN	LTC1646IGN#PBF	LTC1646IGN#TR	LTC1646IGN#TRPBF	LTC1646IGN
Description	Hot Swap Controller 2-CH 7V N-Channel Positive Low Voltage 16-Pin SSOP N Tube	Hot Swap Controller 2-CH 7V N-Channel Positive Low Voltage 16-Pin SSOP N T/R	Hot Swap Controller 2-CH 7V N-Channel Positive Low Voltage 16-Pin SSOP N T/R	Hot Swap Controller 2-CH 7V N-Channel Positive Low Voltage 16-Pin SSOP N	Hot Swap Controller 2-CH 7V N-Channel Positive Low Voltage 16-Pin SSOP N Tube	Hot Swap Controller 2-CH 7V N-Channel Positive Low Voltage 16-Pin SSOP N T/R	Hot Swap Controller 2-CH 7V N-Channel Positive Low Voltage 16-Pin SSOP N T/R	Hot Swap Controller 2-CH 7V N-Channel Positive Low Voltage 16-Pin SSOP N
EU restricts the use of certain hazardous substances	Compliant	Not Compliant	Compliant	Not Compliant	Compliant	Not Compliant	Compliant	Not Compliant
ECCN (US)	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99
Part Status	Active	Unconfirmed	Active	Unconfirmed	Active	Unconfirmed	Active	Unconfirmed
Type	Positive Low Voltage	Positive Low Voltage	Positive Low Voltage	Positive Low Voltage	Positive Low Voltage	Positive Low Voltage	Positive Low Voltage	Positive Low Voltage
Fault Management	Latched Off	Latched Off	Latched Off	Latched Off	Latched Off	Latched Off	Latched Off	Latched Off
External FET	N-Channel	N-Channel	N-Channel	N-Channel	N-Channel	N-Channel	N-Channel	N-Channel
Number of Channels	2	2	2	2	2	2	2	2
PGOOD Output Logic	Active Low	Active Low	Active Low	Active Low	Active Low	Active Low	Active Low	Active Low
Minimum Operating Supply Voltage (V)	2.7	2.7	2.7	2.7	2.7	2.7	2.7	2.7
Maximum Operating Supply Voltage (V)	7	7	7	7	7	7	7	7
Typical Circuit Breaker Threshold Voltage (mV)	56	56	56	56	56	56	56	56
Maximum Supply Current (mA)	4	4	4	4	4	4	4	4
External Sense Resistor	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Maximum Operating Temperature (°C)	70	70	70	70	85	85	85	85
Supplier Temperature Grade	Commercial	Commercial	Commercial	Commercial	Industrial	Industrial	Industrial	Industrial
Pin Count	16	16	16	16	16	16	16	16
Standard Package Name	SOP	SOP	SOP	SOP	SOP	SOP	SOP	SOP
Supplier Package	SSOP N	SSOP N	SSOP N	SSOP N	SSOP N	SSOP N	SSOP N	SSOP N
Mounting	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package Height	1.5(Max)	1.5(Max)	1.5(Max)	1.5(Max)	1.5(Max)	1.5(Max)	1.5(Max)	1.5(Max)
Package Length	4.98(Max)	4.98(Max)	4.98(Max)	4.98(Max)	4.98(Max)	4.98(Max)	4.98(Max)	4.98(Max)
Package Width	3.99(Max)	3.99(Max)	3.99(Max)	3.99(Max)	3.99(Max)	3.99(Max)	3.99(Max)	3.99(Max)
PCB changed	16	16	16	16	16	16	16	16
Lead Shape	Gull-wing	Gull-wing	Gull-wing	Gull-wing	Gull-wing	Gull-wing	Gull-wing	Gull-wing
HTS	8542.39.00.01	8542.39.00.01	8542.39.00.01	-	8542.39.00.01	8542.39.00.01	8542.39.00.01	8542.39.00.01
Packaging	Tube	Tape and Reel	Tape and Reel	-	Tube	Tape and Reel	Tape and Reel	-

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