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LTC2992 Datasheet(PDF) 39 Page - Linear Technology

Part # LTC2992
Description  Dual Wide Range Power Monitor
PDF  46 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC2992 Datasheet(HTML) 39 Page - Linear Technology

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LTC2992
39
Rev A
For more information www.analog.com
TYPICAL APPLICATIONS
Four Quadrant Power Monitor (10kHz I2C Interface)
GPIO2
GPIO4
ADR1
ADR0
GND
SDAO
SDAI
SCL
LTC2992-1
VDD
NC
NC
INTVCC
GPIO1
GPIO3
VIN
–95V TO
100V
ORGND
(GND PIN
OF LTC2992-1)
SENSE2– SENSE1+
SENSE1– SENSE2+
MOCD207M
MOCD207M
2992 TA06
ALERT
R6
33k
R7
0.82k
R8
4.7k
R10
0.47k
R11
0.47k
R12
2k
R13
2k
R14
10k
VDD
3.3V
INT
SDA
SCL
GND
µP
R17
100k
R16
100k
R4
1M
SEPARATE
5V SUPPLY
TEMPERATURE
SENSOR
R9
4.7k
PIN NOT USED IN LTC4371 CIRCUIT: FAULTB
NC: NO CONNECT
IF CODEGPIO1 > CODEGPIO2, MEASURED VIN = –[CODEGPIO1 × GPIO LSB STEP SIZE × 51]
IF CODEGPIO1 < CODEGPIO2, MEASURED VIN = CODEGPIO2 × GPIO LSB STEP SIZE × 51
VDS,Q2, VDS,Q3 ARE DRAIN TO SOURCE VOLTAGE OF Q2 AND Q3
VRSENSE IS VOLTAGE ACROSS RSENSE
*MAX EMITTER-BASE BREAKDOWN VOLTAGE OF Q4, Q5 SHOULD BE LESS THAN 7V
C1
1µF
ORGND
Q4*
MMBT2222L
Q1
PZTA42
SB
LTC4371
SA
GA
DA
GB
VOUT
5A
DB
VSS VZ VDD
C3
1nF
R15, 10k
C2
1nF
Q3
BSP297
Q2
BSP297
RSENSE
0.01
Q5*
MMBT2222L
+
–
R1
1M
R3
20k
R2
20k
|VIN| – |VRSENSE|–|VDS,Q2|
×
51
1
GPIO LSB STEP SIZE
|VIN| – |VDS,Q3|
×
51
1
GPIO LSB STEP SIZE
CODEGPIO1 =
CODEGPIO2 =



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