LTC2930HDD#PBF Linear Technology, LTC2930HDD#PBF Datasheet

IC 6 POWER SUPPLY MONITOR 12DFN

LTC2930HDD#PBF

Manufacturer Part Number
LTC2930HDD#PBF
Description
IC 6 POWER SUPPLY MONITOR 12DFN
Manufacturer
Linear Technology
Datasheet

Specifications of LTC2930HDD#PBF

Applications
Six Power Supply Monitor
Voltage - Supply
1 V ~ 7 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
12-DFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Supply
-
Voltage - Input
-

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LTC2930HDD#PBFLTC2930HDD
Manufacturer:
LT
Quantity:
10 000
FEATURES
APPLICATIONS
TYPICAL APPLICATION
12V
5V
3.3V
1.8V
1.2V
–5.2V
Simultaneously Monitors Six Supplies
16 User Selectable Combinations of
5V, 3.3V, 3V, 2.5V, 1.8V, 1.5V and
± Adjustable Voltage Thresholds
Guaranteed ±1.5% Threshold Accuracy
Adjustable Reset Timeout
Low Supply Current: 52μA
Manual Reset Pin
Power Supply Glitch Immunity
Guaranteed RST for V
High Temperature Operation to 125°C
12-Lead 3mm × 3mm DFN Package
Desktop and Notebook Computers
Multivoltage Systems
Telecom Equipment
Portable Battery-Powered Equipment
Network Servers
Automotive
0.1μF
124k
1%
100k
1%
Six Supply Monitor, 5% Threshold
12V, 5V, 3.3V, 1.8V, 1.2V, –5.2V
2150k
1%
100k
1%
CC
487k
1%
121k
1%
16.2k
1%
86.6k
1%
≥ 1V
VREF
V1
V2
V3
V4
V5
V6
VPG
LTC2930
GND
CRT
RST
MR
C
47nF
RT
2930 TA01
SYSTEM
LOGIC
t
RST
MANUAL RESET
DESCRIPTION
The LTC
systems with up to six supply voltages. One of 16 preset or
adjustable voltage monitor combinations can be selected
using an external resistive divider connected to the mode
select pin. The preset voltage thresholds are accurate
to ±1.5% over temperature. The LTC2930 also features
adjustable inputs with a 0.5V nominal threshold.
The reset timeout period is adjustable using an external
capacitor. A reset event may be generated with a manual
reset button on the manual reset input. 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
and may be externally pulled up to an external voltage.
The 52μA supply current makes the LTC2930 ideal for
power conscious systems and it may be confi gured to
monitor fewer than six inputs.
L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
Protected by U.S. Patents including 6967591, 7119714, 7239251.
= 94ms
Reset Timer, Manual Reset
Monitor with Adjustable
Confi gurable Six Supply
®
2930 is a confi gurable supply monitor for
Voltage Threshold Confi guration Table
V1 (V)
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
3.3
3.3
3.3
3.3
3.3
3.3
V2 (V)
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.0
3.0
3.0
2.5
2.5
2.5
2.5
2.5
2.5
V3 (V)
ADJ
ADJ
ADJ
ADJ
ADJ
2.5
2.5
2.5
1.8
1.8
2.5
1.8
1.8
1.8
1.8
1.5
V4 (V)
–ADJ
–ADJ
–ADJ
–ADJ
ADJ
ADJ
ADJ
ADJ
ADJ
ADJ
ADJ
ADJ
ADJ
1.8
1.5
1.5
LTC2930
V5 (V)
ADJ
ADJ
ADJ
ADJ
ADJ
ADJ
ADJ
ADJ
ADJ
ADJ
ADJ
ADJ
ADJ
ADJ
ADJ
ADJ
CC
down to 1V
V6 (V)
ADJ
ADJ
ADJ
ADJ
ADJ
ADJ
ADJ
ADJ
ADJ
ADJ
ADJ
ADJ
ADJ
ADJ
ADJ
ADJ
2930fa
1

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LTC2930HDD#PBF Summary of contents

Page 1

... The 52μA supply current makes the LTC2930 ideal for power conscious systems and it may be confi gured to monitor fewer than six inputs. L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Protected by U.S. Patents including 6967591, 7119714, 7239251. ...

Page 2

... LEAD FREE FINISH TAPE AND REEL LTC2930CDD#PBF LTC2930CDD#TRPBF LTC2930IDD#PBF LTC2930IDD#TRPBF LTC2930HDD#PBF LTC2930HDD#TRPBF *The temperature grade is identifi label on the shipping container. For more information on lead free part marking, go to: This product is only offered in trays. For more information go to: ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi cations are at T ...

Page 3

ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi cations are at T SYMBOL PARAMETER I V1 Input Current Input Current Input Current Input Current V5, V6 Input Current V5 ...

Page 4

LTC2930 TYPICAL PERFORMANCE CHARACTERISTICS Normalized Threshold Voltages vs Temperature 1.015 1.010 1.005 1.000 0.995 0.990 0.985 –50 – 100 TEMPERATURE (°C) 2930 G01 Supply Current vs Temperature 3. ...

Page 5

TYPICAL PERFORMANCE CHARACTERISTICS Reset Timeout Period 25° 100m 10m 1m 100μ 10μ 10p 100p 1n 10n C (F) RT Voltage Output Low vs Output Sink Current (RST) 500 ...

Page 6

LTC2930 PIN FUNCTIONS MR (Pin 6): Manual Reset Input. A logic low on this pin pulls RST low. When the MR pin returns high, RST returns high after the confi gured reset timeout if all six voltage inputs are above ...

Page 7

APPLICATIONS INFORMATION Supply Monitoring The LTC2930 is a low power, high accuracy confi gurable six supply monitoring circuit with a common reset output. An external capacitor sets the reset timeout period. An external resistive divider between VREF , VPG and ...

Page 8

LTC2930 APPLICATIONS INFORMATION R1 LTC2930 1% VREF VPG GND Figure 2. Mode Selection Monitor Confi guration Select the LTC2930 input voltage combination by placing the recommended resistive divider from VREF to GND and connecting the tap point to VPG, as ...

Page 9

APPLICATIONS INFORMATION connected to the high impedance adjustable input (V4). V provides the necessary level shift required to operate REF at ground. The negative trip voltage is calculated from • 1.210V = −V TRIP REF REF ...

Page 10

LTC2930 APPLICATIONS INFORMATION 5V 3.3V 1.8V –5. 68.1k 86.6k 487k 0.1μ 121k 1% VREF R1A 100k 100k 16. R2A 86.6k 1% 12V (9.6V THRESHOLD) LTM4600 V ...

Page 11

... SHADED AREA IS ONLY A REFERENCE FOR PIN 1 LOCATION ON THE TOP AND BOTTOM OF PACKAGE Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa- tion that the interconnection of its circuits as described herein will not infringe on existing patent rights. DD Package 12-Lead Plastic DFN (3mm × ...

Page 12

... Pin-Selectable Tolerance (5%, 7.5%, 10%, or 12.5%), Reset Disable for Margining www.linear.com ● RST SYSTEM RESET MR CRT PUSHBUTTON RESET C RT 47nF 2930 TA02 t = 94ms RST Pin, Adjustable Threshold and Reset, CC Pin, Adjustable Reset Timer 0308 REV A • PRINTED IN USA © LINEAR TECHNOLOGY CORPORATION 2008 2930fa ...

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