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DC-1495A 

 

 

 

 

 

 

Item 

Qty 

Ref -Des 

Desc 

Manufacturer's Part 

Number 

C1 

CAP, 0805 100nF 10% 100V X7R 

TDK 
C2012X7R2A104K 

C2 

CAP, 0603 10nF 10% 50V X7R 

AVX 
06035C103KAT2A 

C3,C4,C5 

CAP, 0805 OPTION 

OPTION 

D1 

DIODE, FIELD EFFECT CURRENT 
REGULATOR SOD-80 

CENTRAL SEMI 
CCLM2700 

D2 

DIODE, TRANSIENT VOLTAGE 
SUPPRESSOR SMA 

DIODES INC. 
SMAT70A 

16 

E1-E16 

TURRET 

MILL-MAX 2501-2-00-
80-00-00-07-0 

J1,J2,J3,J4 

JACK, BANANA 

KEYSTONE 575-4 

LED1 

LED, RED 

PANASONIC LN1251-
C-TR 

LED2 

LED, GREEN 

PANASONIC LN1351-
C-TR 

10 

R1B,RJ-2,RJ-
4,R4B,R5B 

RES, 0805 0 OHM JUMPER 

VISHAY 
CRCW08050000Z0EA 

11 

R1C,R2B,R3,RJ-
5,R9B,R12C, 

RES, 0805 OPTION 

OPTION 

 

 

R12A 

 

 

12 

RS1,RS2,RS3 

RES, 1206 200m OHMS 1% 
100ppm/Degrees C 

TEPRO TT6-R200-F-
100L 

 

 

 

 

 

13 

R1A 

RES, 0805 25.5K OHMS 1% 1/8W 

NIC NRC10F2552TRF 

14 

R2A 

RES, 0805 102K OHMS 1% 1/8W 

NIC NRC10F1023TRF 

15 

R4A,R5A 

RES, 0805 15K OHMS 1% 1/8W 

NIC NRC10F1502TRF 

16 

R9A 

RES, 0805 22K OHMS 5% 1/8W 

VISHAY 
CRCW080522K0JNE

17 

R12B 

RES, 0805 10 OHMS 5% 1/8W 

NIC NRC10J100TRF 

18 

U1 

IC, POWER MONITOR 

LINEAR TECH 
LT2940CDD 

19 

 

STANDOFF, SNAP ON 

KEYSTONE_8831 

 

 

Summary of Contents for LT2940

Page 1: ...40 V VCC VCC Supply Range When Separately Powered 12 80 V PMON Load Power for Full Scale Output PMON 3V 27 30 33 W IMON Load Current for Full Scale Output IMON 3V 2 85 3 3 15 A PTRIP Overpower Threshold Red LED Turns On 11 12 5 14 W OVERVIEW The LT2940 is a four quadrant multiplier designed to measure current and voltage multiply them and produce an output proportional to power A sec ond output is...

Page 2: ... the LATCH turret high 2 5V for latch ing behavior Grounding the LATCH turret clears the comparator after latching RJ 2 R2A R1A R1C R2B R1B divider compo nents for voltage sense pins V and V As stuffed R2A and R1A form a 5 1 divider that moni tors the output voltage with a 40V full scale value By re arranging the components it is possible to achieve a variety of configurations for single ended and...

Page 3: ...ur rent inputs can be scaled to the mid point of the input operating voltage range For example maximum power is 100W and the input voltage range is 40V to 60V scale the voltage input to 4V with a 50V input 12 5 1 and the current input to 100mV 2A dropped across 50mΩ sense resistor When scaled in this fashion there is plenty of op erating range in the voltage and current inputs to handle the 40V an...

Page 4: ...DC 1495A 4 Figure 1 Proper Measurement Equipment Setup ...

Page 5: ...UTPUT RJ 4 0 RJ 5 OPT R3 OPT C3 OPT R4B 0 R5B 0 R9A 22K E10 GND J4 GND R2A 102K 1 U1 LT2940CDD CMPOUT 1 IMON 5 V 8 V 7 GND 6 PMON 4 CMP 3 CMPOUT 2 LATCH 9 I 10 I 11 VCC 12 PAD 13 R5A 15K 1 LED2 GRN 2 1 C5 OPT C4 OPT E13 PMON E15 GND E16 GND E14 IMON C1 100nF 100V R12A OPT VCC VCC R12B 10 LED1 RED 2 1 R4A 15K 1 E8 VCC 6V 75V RS3 200m 1 VCC C2 10nF 50V E11 CMPOUT E12 CMPOUT D1 CCLM2700 2 1 UNDER OVE...

Page 6: ...LED1 LED RED PANASONIC LN1251 C TR 9 1 LED2 LED GREEN PANASONIC LN1351 C TR 10 5 R1B RJ 2 RJ 4 R4B R5B RES 0805 0 OHM JUMPER VISHAY CRCW08050000Z0EA 11 0 R1C R2B R3 RJ 5 R9B R12C RES 0805 OPTION OPTION R12A 12 3 RS1 RS2 RS3 RES 1206 200m OHMS 1 100ppm Degrees C TEPRO TT6 R200 F 100L 13 1 R1A RES 0805 25 5K OHMS 1 1 8W NIC NRC10F2552TRF 14 1 R2A RES 0805 102K OHMS 1 1 8W NIC NRC10F1023TRF 15 2 R4A ...

Page 7: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Analog Devices Inc DC1495A ...

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