PDF《LTC2913 Dual UV/OV》

LTC2913

1 2913fb FEATURES APPLICATIONS DESCRIPTION Dual UV/OV Voltage Monitor The LTC?

2913 is a dual input voltage monitor intended for multiplevoltagesinavarietyofapplications.

Dualinputsfor each voltage allow monitoring two separate undervoltage (UV) conditions and two separate overvoltage (OV) conditions. All monitors share a common undervoltage outputandacommonovervoltageoutput.TheLTC2913-1 has latching capability for the overvoltage output. The LTC2913-2hasfunctionalitytodisableboththeovervoltage and undervoltage outputs. Glitch ?ltering ensures reliable reset operation without false or noisy triggering. The LTC2913 provides a precise, versatile, space-con- scious, micropower solution for voltage monitoring. n Monitors Two Voltages Simultaneously n Adjustable UV and OV Trip Values n Guaranteed Threshold Accuracy: ±1.5% n Input Glitch Rejection n Adjustable Reset Timeout with Disable n 44μA Quiescent Current n Open-Drain OV and UV Outputs n Guaranteed OV and UV for VCC ≥ 1V n Available in 10-Lead MSOP and (3mm * 3mm) DFN Packages n Desktop and Notebook Computers n Network Servers n Core, I/O Voltage Monitors Dual OV/UV Supply Monitor Typical Transient Duration vs Comparator Overdrive TYPICAL APPLICATION L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. 27.4k 1k 44.2k VH1 LTC2913-1 VL1 VH2 GND TMR SYSTEM POWER SUPPLIES VL2 OV UV

2913 TA01a LATCH 4.53k 22nF TIMEOUT = 200ms 1k 4.53k VCC 0.1μF 5V 3.3V COMPARATOR OVERDRIVE PAST THRESHOLD (%) 0.1

400 TYPICAL TRANSIENT DURATION ( μ s)

500 600

700 1

10 100

2913 TA01b

300 200

100 0 VCC = 2.3V VCC = 6V RESET OCCURS ABOVE CURVE LTC2913

2 2913fb ABSOLUTE MAXIMUM RATINGS Terminal Voltages VCC (Note 3)0.3V to 6V OV, UV.0.3V to 16V TMR.0.3V to (VCC + 0.3V) VHn, VLn, LATCH, DIS.0.3V to 7.5V Terminal Currents IVCC.10mA IUV, IOV.10mA (Notes 1, 2)

1 2

3 4

5 VH1 VL1 VH2 VL2 GND

10 9

8 7

6 VCC TMR LATCH UV OV TOP VIEW MS PACKAGE 10-LEAD PLASTIC MSOP TJMAX = 150°C, θJA = 120°C/W TOP VIEW

11 DD PACKAGE 10-LEAD (3mm * 3mm) PLASTIC DFN

10 9

6 7

8 4

5 3

2 1 VCC TMR LATCH UV OV VH1 VL1 VH2 VL2 GND TJMAX = 150°C, θJA = 43°C/W EXPOSED PAD (PIN 11) PCB GND CONNECTION OPTIONAL ORDER PART NUMBER MS PART MARKING* ORDER PART NUMBER DD PART MARKING* LTC2913CMS-1 LTC2913IMS-1 LTC2913HMS-1 LTCKK LTCKK LTCKK LTC2913CDD-1 LTC2913IDD-1 LTC2913HDD-1 LCKN LCKN LCKN

1 2

3 4

5 VH1 VL1 VH2 VL2 GND

10 9

8 7

6 VCC TMR DIS UV OV TOP VIEW MS PACKAGE 10-LEAD PLASTIC MSOP TJMAX = 150°C, θJA = 120°C/W TOP VIEW

11 DD PACKAGE 10-LEAD (3mm * 3mm) PLASTIC DFN

10 9

6 7

8 4

5 3

2 1 VCC TMR DIS UV OV VH1 VL1 VH2 VL2 GND TJMAX = 150°C, θJA = 43°C/W EXPOSED PAD (PIN 11) PCB GND CONNECTION OPTIONAL ORDER PART NUMBER MS PART MARKING* ORDER PART NUMBER DD PART MARKING* LTC2913CMS-2 LTC2913IMS-2 LTC2913HMS-2 LTCKM LTCKM LTCKM LTC2913CDD-2 LTC2913IDD-2 LTC2913HDD-2 LCKP LCKP LCKP Order Options Tape and Reel: Add #TR Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF Lead Free Part Marking: http://www.linear.com/leadfree/ *The temperature grade is identi?ed by a label on the shipping container. Operating Temperature Range LTC2913C 0°C to 70°C LTC2913I.40°C to 85°C LTC2913H 40°C to 125°C Storage Temperature Range.65°C to 150°C Lead Temperature (Soldering,

10 sec) MSOP 300°C PACKAGE/ORDER INFORMATION LTC2913

3 2913fb ELECTRICAL CHARACTERISTICS Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2: All currents into pins are positive;