LT1970 - 500mA Power Op Amp With Adjustable Precision Current Limit

The LT1970 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/s. 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.
By Linear Technology Corporation
LT1970 's PackagesLT1970 's pdf datasheet
LT1970CFE-PBF TSSOP
LT1970CFE-TRPBF TSSOP
LT1970IFE-PBF TSSOP
LT1970IFE-TRPBF TSSOP




LT1970 Pinout, Pinouts
LT1970 pinout,Pin out
This is one package pinout of LT1970,If you need more pinouts please download LT1970's pdf datasheet.

LT1970 Application circuits
LT1970 circuits
This is one application circuit of LT1970,If you need more circuits,please download LT1970's pdf datasheet.


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