LTM4615 datasheet(9/32 Pages) LINER

9 / 32 page

LTM4642

4642fb

For more information www.linear.com/LTM4642

pin FuncTions

RUN1, RUN2 (G3, B3): Run Control Pins. A source can

be used to enable the RUN pins with an external pull-up

resistor. Forcing either of these pins below 1.2V will shut

down the corresponding outputs. An additional 5µA pull-

up current is added to this pin, once the RUN pin rises

above 1.2V. Also, active control or pull-up resistors can

be used to enable the RUN pin. The maximum voltage is

6V on these pins. There are 100k resistors on RUN1,2

to ground. It is recommended to use an external pull-up

resistor to VIN to enable the RUN pin. See the Applications

Information section.

VRNG1 (G4): Used at Final Test. Tie to INTVCC in normal

operation. This pin can also be used to adjust the current

limitofchannel1. AnexternalresistivedividerfromINTVCC

can be used to set the voltage on the VRNG pin between

0.6V to 1V, resulting in a maximum sense voltage between

30mV and 50mV. For applications that require less than

7A of the default peak current limit, the VRNG pin voltage

can be scaled down to obtain a desired current limit level.

VIN1 (G5, G6, 67), VIN2 (B5, B6, B7): Power Input Pins.

Apply input voltage between these pins and GND pins.

Recommendplacinginputdecouplingcapacitancedirectly

between VIN pins and GND pins.

VOUT1 (F1, G1, G2, H1, H2), VOUT2 (A1, A2, B1, B2, C1):

Power Output Pins. Apply output load between these pins

and PGND pins. Recommend placing output decoupling

capacitance directly between these pins and PGND pins.

SW1, SW2 (H3, A3): Switching Test Pins. These pins

are provided externally to check the operation frequency.

LTM4615 Scheda tecnica(PDF) 9 Page - Linear Technology