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LT1970IFE#TR

Description
Op Amp Single High Output Current Amplifier ±18V/36V Automotive 20-Pin TSSOP EP T/R
File Size369KB,26 Pages
ManufacturerADI
Websitehttps://www.analog.com
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LT1970IFE#TR Overview

Op Amp Single High Output Current Amplifier ±18V/36V Automotive 20-Pin TSSOP EP T/R

LT1970IFE#TR Parametric

Parameter NameAttribute value
EU restricts the use of certain hazardous substancesNot Compliant
ECCN (US)EAR99
Part StatusUnconfirmed
HTS8542.33.00.01
SVHCYes
SVHC Exceeds ThresholdYes
TypeHigh Output Current Amplifier
Manufacturer TypeHigh Output Current Amplifier
Number of Channels per Chip1
Maximum Input Offset Voltage (mV)0.6
Minimum Single Supply Voltage (V)5
Typical Single Supply Voltage (V)9|12|15|18|24|28
Maximum Single Supply Voltage (V)36
Minimum Dual Supply Voltage (V)±2.5
Typical Dual Supply Voltage (V)±5|±3|±9|±12|±15
Maximum Dual Supply Voltage (V)±18
Maximum Input Offset Current (uA)0.1
Typical Input Bias Current (uA)0.16@-40C to 85C
Maximum Input Bias Current (uA)0.6@-40C to 85C
Maximum Supply Current (mA)13@-40C to 85C
Power Supply TypeDual|Single
Typical Slew Rate (V/us)1.6
Typical Input Noise Voltage Density (nV/rtHz)15
Typical Voltage Gain (dB)103.52
Typical Noninverting Input Current Noise Density (pA/rtHz)3
Minimum PSRR (dB)90
Minimum CMRR (dB)92
Minimum CMRR Range (dB)90 to 95
Typical Gain Bandwidth Product (MHz)3.6
Typical Settling Time (ns)8000
Shut Down SupportYes
Minimum Operating Temperature (°C)-40
Maximum Operating Temperature (°C)85
Supplier Temperature GradeIndustrial
PackagingTape and Reel
Pin Count20
Standard Package NameSOP
Supplier PackageTSSOP EP
MountingSurface Mount
Package Height1.05(Max)
Package Length6.6(Max)
Package Width4.5(Max)
PCB changed20
Lead ShapeGull-wing
LT1970
500mA Power Op Amp with
Adjustable Precision Current Limit
FeaTures
n
n
DescripTion
The
LT
®
1970
is a ± 500mA power op amp with precise
externally controlled current limiting. Separate control
voltages program the sourcing and sinking current limit
sense thresholds with 2% accuracy. Output current may
be boosted by adding external power transistors.
The circuit operates with single or split power supplies
from 5V to 36V total supply voltage. In normal operation,
the input stage supplies and the output stage supplies are
connected (V
CC
to V
+
and V
EE
to V
). To reduce power
dissipation it is possible to power the output stage (V
+
,
V
) from independent, lower voltage rails. The amplifier is
unity-gain stable with a 3.6MHz gain bandwidth product
and slews at 1.6V/µs. The current limit circuits operate
with a 2MHz response between the VC
SRC
or VC
SNK
control
inputs and the amplifier output.
Open collector status flags signal current limit circuit
activation, as well as thermal shutdown of the amplifier.
An enable logic input puts the amplifier into a low power,
high impedance output state when pulled low. Thermal
shutdown and a ±800mA fixed current limit protect the
chip under fault conditions.
The LT1970 is packaged in a 20-lead TSSOP package with
a thermally conductive copper bottom plate to facilitate
heat sinking.
n
n
n
n
n
n
n
n
n
n
± 500mA Minimum Output Current
Independent Adjustment of Source and
Sink Current Limits
2% Current Limit Accuracy
Operates with Single or Split Supplies
Shutdown/Enable Control Input
Open Collector Status Flags:
Sink Current Limit
Source Current Limit
Thermal Shutdown
Fail Safe Current Limit and Thermal Shutdown
1.6V/µs Slew Rate
3.6MHz Gain Bandwidth Product
Fast Current Limit Response: 2MHz Bandwidth
Specified Temperature Range: –40°C to 85°C
Available in a 20-Lead TSSOP Package
applicaTions
n
n
n
n
Automatic Test Equipment
Laboratory Power Supplies
Motor Drivers
Thermoelectric Cooler Driver
L,
LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
Typical applicaTion
V
LIMIT
0V TO 5V
A
V
= 2 Amplifier with Adjustable ± 500mA Full-Scale
Current Limit and Fault Indication
15V
V
LIMIT
10 • R
CS
15V
3k
Current Limited Sinewave Into 10Ω Load
I
OUT(LIMIT)
= ±
V
IN
4V
2V
V
LOAD
0V
I
OUT
R
CS
1
1/4W
–2V
V
CC
V
+
EN
VC
SRC
+IN
VC
SNK
ISNK
ISRC
TSD
LT1970
OUT
SENSE
+
SENSE
V
–IN
V
EE
COMMON
R1
10k
R2
10k
1970 TA01
LOAD
VC
SRC
= 4V
VC
SNK
= 2V
R
CS
= 1Ω
20µs/DIV
1970 TA02
–15V
1970fe
For more information
www.linear.com/LT1970
1

LT1970IFE#TR Related Products

LT1970IFE#TR LT1970CFE#PBF LT1970CFE#TR LT1970CFE#TRPBF LT1970CFE LT1970IFE#PBF LT1970IFE#TRPBF LT1970IFE
Description Op Amp Single High Output Current Amplifier ±18V/36V Automotive 20-Pin TSSOP EP T/R Op Amp Single High Output Current Amplifier ±18V/36V Automotive 20-Pin TSSOP EP Tube Op Amp Single High Output Current Amplifier ±18V/36V Automotive 20-Pin TSSOP EP T/R Op Amp Single High Output Current Amplifier ±18V/36V Automotive 20-Pin TSSOP EP T/R Op Amp Single High Output Current Amplifier ±18V/36V Automotive 20-Pin TSSOP EP Op Amp Single High Output Current Amplifier ±18V/36V Automotive 20-Pin TSSOP EP Tube Op Amp Single High Output Current Amplifier ±18V/36V Automotive 20-Pin TSSOP EP T/R Op Amp Single High Output Current Amplifier ±18V/36V Automotive 20-Pin TSSOP EP
EU restricts the use of certain hazardous substances Not Compliant Compliant Not Compliant Compliant Not Compliant Compliant Compliant Not Compliant
ECCN (US) EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99
Part Status Unconfirmed Active Unconfirmed Active Unconfirmed Active Active Unconfirmed
HTS 8542.33.00.01 8542.33.00.01 8542.33.00.01 8542.33.00.01 8542.33.00.01 8542.33.00.01 8542.33.00.01 8542.33.00.01
Type High Output Current Amplifier High Output Current Amplifier High Output Current Amplifier High Output Current Amplifier High Output Current Amplifier High Output Current Amplifier High Output Current Amplifier High Output Current Amplifier
Manufacturer Type High Output Current Amplifier High Output Current Amplifier High Output Current Amplifier High Output Current Amplifier High Output Current Amplifier High Output Current Amplifier High Output Current Amplifier High Output Current Amplifier
Number of Channels per Chip 1 1 1 1 1 1 1 1
Maximum Input Offset Voltage (mV) 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6
Minimum Single Supply Voltage (V) 5 5 5 5 5 5 5 5
Typical Single Supply Voltage (V) 9|12|15|18|24|28 9|12|15|18|24|28 9|12|15|18|24|28 9|12|15|18|24|28 28|24|18|15|12|9 9|12|15|18|24|28 12|18|15|24|28|9 28|24|18|15|12|9
Maximum Single Supply Voltage (V) 36 36 36 36 36 36 36 36
Minimum Dual Supply Voltage (V) ±2.5 ±2.5 ±2.5 ±2.5 ±2.5 ±2.5 ±2.5 ±2.5
Typical Dual Supply Voltage (V) ±5|±3|±9|±12|±15 ±12|±15|±3|±5|±9 ±5|±3|±9|±15|±12 ±12|±3|±5|±9|±15 ±15|±12|±9|±5|±3 ±3|±5|±9|±12|±15 ±9|±5|±12|±3|±15 ±15|±12|±9|±5|±3
Maximum Dual Supply Voltage (V) ±18 ±18 ±18 ±18 ±18 ±18 ±18 ±18
Maximum Input Offset Current (uA) 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1
Typical Input Bias Current (uA) 0.16@-40C to 85C 0.16@0C to 70C 0.16@0C to 70C 0.16@0C to 70C 0.16@0C to 70C 0.16@-40C to 85C 0.16@-40C to 85C 0.16@-40C to 85C
Maximum Input Bias Current (uA) 0.6@-40C to 85C 0.6@0C to 70C 0.6@0C to 70C 0.6@0C to 70C 0.6@0C to 70C 0.6@-40C to 85C 0.6@-40C to 85C 0.6@-40C to 85C
Maximum Supply Current (mA) 13@-40C to 85C 13@0C to 70C 13@0C to 70C 13@0C to 70C 13@0C to 70C 13@-40C to 85C 13@-40C to 85C 13@-40C to 85C
Power Supply Type Dual|Single Single|Dual Dual|Single Single|Dual Dual|Single Single|Dual Single|Dual Dual|Single
Typical Slew Rate (V/us) 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6
Typical Input Noise Voltage Density (nV/rtHz) 15 15 15 15 15 15 15 15
Typical Voltage Gain (dB) 103.52 103.52 103.52 103.52 103.52 103.52 103.52 103.52
Typical Noninverting Input Current Noise Density (pA/rtHz) 3 3 3 3 3 3 3 3
Minimum PSRR (dB) 90 90 90 90 90 90 90 90
Minimum CMRR (dB) 92 92 92 92 92 92 92 92
Minimum CMRR Range (dB) 90 to 95 90 to 95 90 to 95 90 to 95 90 to 95 90 to 95 90 to 95 90 to 95
Typical Gain Bandwidth Product (MHz) 3.6 3.6 3.6 3.6 3.6 3.6 3.6 3.6
Typical Settling Time (ns) 8000 8000 8000 8000 8000 8000 8000 8000
Shut Down Support Yes Yes Yes Yes Yes Yes Yes Yes
Maximum Operating Temperature (°C) 85 70 70 70 70 85 85 85
Supplier Temperature Grade Industrial Commercial Commercial Commercial Commercial Industrial Industrial Industrial
Pin Count 20 20 20 20 20 20 20 20
Standard Package Name SOP SOP SOP SOP SOP SOP SOP SOP
Supplier Package TSSOP EP TSSOP EP TSSOP EP TSSOP EP TSSOP EP TSSOP EP TSSOP EP TSSOP EP
Mounting Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount
Package Height 1.05(Max) 1.05(Max) 1.05(Max) 1.05(Max) 1.05(Max) 1.05(Max) 1.05(Max) 1.05(Max)
Package Length 6.6(Max) 6.6(Max) 6.6(Max) 6.6(Max) 6.6(Max) 6.6(Max) 6.6(Max) 6.6(Max)
Package Width 4.5(Max) 4.5(Max) 4.5(Max) 4.5(Max) 4.5(Max) 4.5(Max) 4.5(Max) 4.5(Max)
PCB changed 20 20 20 20 20 20 20 20
Lead Shape Gull-wing Gull-wing Gull-wing Gull-wing Gull-wing Gull-wing Gull-wing Gull-wing
Packaging Tape and Reel Tube Tape and Reel Tape and Reel - Tube Tape and Reel -
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