LTC2902-2IGN#TRPBF datasheet, PDF

Datasheet> All Categories > Power/power management> The power supply circuit> LTC2902-2IGN#TRPBF

LTC2902-2IGN#TRPBF: DescriptionIC MON SUPP QD W/RST&SEL; 16-SSOP; CategoryPower/power management The power supply circuit; File Size195KB，16 Pages; ManufacturerLinear ( ADI ); Websitehttp://www.analog.com/cn/index.html; Environmental Compliance

Download Datasheet Parametric View All

LTC2902-2IGN#TRPBF Overview

IC MON SUPP QD W/RST&SEL; 16-SSOP

LTC2902-2IGN#TRPBF Parametric

Parameter Name	Attribute value
Brand Name	Linear Technology
Is it Rohs certified?	conform to
Maker	Linear ( ADI )
Parts packaging code	SSOP
package instruction	SSOP,
Contacts	16
Manufacturer packaging code	GN
Reach Compliance Code	compliant
ECCN code	EAR99
Adjustable threshold	YES
Analog Integrated Circuits - Other Types	POWER SUPPLY SUPPORT CIRCUIT
JESD-30 code	R-PDSO-G16
JESD-609 code	e3
length	4.8895 mm
Humidity sensitivity level	1
Number of channels	4
Number of functions	1
Number of terminals	16
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Package body material	PLASTIC/EPOXY
encapsulated code	SSOP
Package shape	RECTANGULAR
Package form	SMALL OUTLINE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	250
Certification status	Not Qualified
Maximum seat height	1.727 mm
Nominal supply voltage (Vsup)	5 V
surface mount	YES
Temperature level	INDUSTRIAL
Terminal surface	Matte Tin (Sn)
Terminal form	GULL WING
Terminal pitch	0.635 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	NOT SPECIFIED
width	3.899 mm

Preview

Download Datasheet

View All

LTC2902

Programmable Quad Supply

Monitor with Adjustable Reset Timer

and Supply Tolerance

DESCRIPTIO

The LTC

2902 is a programmable supply monitor for sys-

tems with up to four supply voltages. One of 16 preset or

adjustable voltage monitor combinations can be selected

using an external resistor divider connected to the pro-

gram pin. The preset voltage thresholds are digitally pro-

grammable to 5%, 7.5%, 10% or 12.5% below the nomi-

nal operating voltage, and are accurate to 1.5% over tem-

perature. All four voltage comparator outputs are con-

nected to separate pins for individual supply monitoring.

The reset delay time is adjustable using an external

capacitor. Tight voltage threshold accuracy and glitch

immunity ensure reliable reset operation without false

triggering. The RST output is guaranteed to be in the

correct state for V

down to 1V and may be disabled

during supply margin testing. The LTC2902-1 features

an open-drain RST output, while the LTC2902-2 has a

push-pull RST output.

The 43µA supply current makes the LTC2902 ideal for power

conscious systems and the part may be configured to

monitor less than four inputs. The LTC2902-1/LTC2902-2

are available in the 16-lead narrow SSOP package.

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

FEATURES

Simultaneously Monitors Four Supplies

16 User Selectable Combinations of 5V, 3.3V, 3V,

2.5V, 1.8V, 1.5V and/or

±Adjustable

Voltage

Thresholds

Guaranteed Threshold Accuracy:

±1.5%

of Monitored

Voltage Over Temperature

Selectable Supply Tolerance: 5%, 7.5%,

10%, 12.5% Below Monitored Voltage

Low Supply Current: 43µA Typ

Adjustable Reset Time

RESET Disable Pin for Margining Applications

Open-Drain RST Output (LTC2902-1)

Push-Pull RST Output (LTC2902-2)

Individual Nondelayed Monitor Outputs for Each Supply

Power Supply Glitch Immunity

Guaranteed RESET for V

≥

APPLICATIO S

Desktop and Notebook Computers

Multivoltage Systems

Telecom Equipment

Portable Battery-Powered Equipment

Network Servers

TYPICAL APPLICATIO

Quad Supply Monitor with Adjustable Tolerance (5V, 3.3V, 2.5V, 1.8V)

3.3V

DC/DC

CONVERTER

2.5V

1.8V

POWER

10k

GOOD

COMP1

COMP2

COMP3

LTC2902-2 COMP4

REF

RST

RDIS

MARGIN

TOLERANCE = 5%

GND

CRT

RST

= 216ms

47nF

2902 TA01

SYSTEM

LOGIC

0.1µF

59k

40.2k

2902f

Recommended Resources

How to choose a ground resistance tester

Illustration of filtering principle of power supply filter circuit

DC power monitor

μPD1987C (TV) infrared remote control receiving circuit

Step-down DC, DC converter circuit diagram

6OXT(1.0) computer motherboard circuit diagram_09

LM3S3739 JTAG port is locked, how to unlock it?: LM3S3739 JTAG port lock problem, tried all the methods found on the Internet but none of them worked, I only have JLINK V8, SEGGER is V4.15W. I changed a new film and can see the device, one is to unl...; yuchenglin Microcontroller MCU

【microbit crowdfunding】Project progress 2017-03-05: I have been busy lately and will be on a business trip next week, so the update is a bit slow. Microbit's current progress: [list=1] [*]PCB is being made[*]Components have been purchased[*]Should be r...; dcexpert MicroPython Open Source section

FPGA IO is abnormal after power-on: Today I found a magical phenomenon. When I powered on the CYCLONE IV I had programmed, all the IO outputs were around 1.5V, and the program obviously did not run. However, when I plugged in and unplug...; petty2012 FPGA/CPLD

I once saw an article saying that the core frequency of 1114 can be modified: I want to modify it myself so that 1114 can run at 72M, but I can't find the configuration register. Which hero can give me some advice?...; gl4365 NXP MCU

Pay attention to this! Mobile power supplies are full of hidden dangers. Poor quality batteries may cause explosions!: [size=3][color=sienna][b][size=5][color=black]Forwarding an article about mobile power. The rapid development of smart phones in the past two years has caused the power supply system of mobile phones,...; qwqwqw2088 Power technology

RIGOL Factory Open Day, participate in the online live broadcast and have a chance to win a limited edition oscilloscope!: RIGOL Factory Open Day. Participate in the online live broadcast from 14:30 to 16:10 on July 1st for a chance to win a limited edition oscilloscope! What are you waiting for? Scan the QR code below to...; eric_wang Integrated technical exchanges

Shortcut: S0 S1 S2 S3 S4 S5 S6 S7 S8 S9 SA SB SC SD SE SF SG SH SI SJ SK SL SM SN SO SP SQ SR SS ST SU SV SW SX SY SZ T0 T1 T2 T3 T4 T5 T6 T7 T8 T9 TA TB TC TD TE TF TG TH TI TJ TK TL TM TN TO TP TQ TR TS TT TU TV TW TX TY TZ U0 U1 U2 U3 U4 U6 U7 U8 UA UB UC UD UE UF UG UH UI UJ UK UL UM UN UP UQ UR US UT UU UV UW UX UZ V0 V1 V2 V3 V4 V5 V6 V7 V8 V9 VA VB VC VD VE VF VG VH VI VJ VK VL VM VN VO VP VQ VR VS VT VU VV VW VX VY VZ W0 W1 W2 W3 W4 W5 W6 W7 W8 W9 WA WB WC WD WE WF WG WH WI WJ WK WL WM WN WO WP WR WS WT WU WV WW WY X0 X1 X2 X3 X4 X5 X7 X8 X9 XA XB XC XD XE XF XG XH XK XL XM XN XO XP XQ XR XS XT XU XV XW XX XY XZ Y0 Y1 Y2 Y4 Y5 Y6 Y9 YA YB YC YD YE YF YG YH YK YL YM YN YP YQ YR YS YT YX Z0 Z1 Z2 Z3 Z4 Z5 Z6 Z8 ZA ZB ZC ZD ZE ZF ZG ZH ZJ ZL ZM ZN ZP ZR ZS ZT ZU ZV ZW ZX ZY

Popular Components