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Brand Name : Linear Technology
Model Number : LT1970CFE
Certification : CE, GCF, ROHS
Place of Origin : China
MOQ : 1
Price : Negotiable
Payment Terms : T/T, Western Union,
Supply Ability : 1000pcs per month
Delivery Time : 3-5 working days after received the payment
Packaging Details : Packed in original tray firstly ,then carton, at last Bubble bag for outer packing
Packaging Type : Reel Tray Tube Tape Bag
Operating Temperature : -40°C ~ 125°C
Package / Case : WSON-8
Mounting Type : SMD/SMT
Manufacturing Date Code : 2024+
Function : Step-Down
LT1970CFE
FeaTures
±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
Automatic Test Equipment
Laboratory Power Supplies
Motor Drivers
Thermoelectric Cooler Driver
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 (VCC to V+ and VEE 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 VCSRC or VCSNK 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.
Information
Category | | |
Mfr | | |
Series | - | |
Packaging | Tube | |
Part Status | Active | |
Amplifier Type | | |
Number of Circuits | 1 | |
Output Type | - | |
Slew Rate | 1.6V/µs | |
Gain Bandwidth Product | 3.6 MHz | |
Current - Input Bias | 160 nA | |
Voltage - Input Offset | 200 µV | |
Current - Supply | 7mA | |
Voltage - Supply Span (Min) | 5 V | |
Voltage - Supply Span (Max) | 36 V | |
Operating Temperature | 0°C ~ 70°C | |
Mounting Type | Surface Mount | |
Package / Case | 20-TSSOP (0.173", 4.40mm Width) Exposed Pad | |
Supplier Device Package | 20-TSSOP-EP | |
Base Product Number |
Drawing
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LT1970CFE ±500mA Power Op Amp 3V to ±15V Supply 1MHz Bandwidth 0.5μV/°C Offset Drift 20-TSSOP-EP -40°C to +85°C Images |