Datasheet LTM4648 (Analog Devices) - 8

LTM4648
PIN FUNCTIONS COMP (F6):
Current Control Threshold and Error Amplifier
DIFFP (F8):
Input to the Remote Sense Amplifier. This Compensation Point. The current comparator threshold pin connects to the output remote sense point. Connect increases with this control voltage. Tie all COMP pins to GND when not used. together in parallel operation.
DIFFOUT (G8):
Output of the Remote Sense Amplifier.
DIFFN (F7):
Input to the Remote Sense Amplifier. This This pin connects to the VOUT_LCL pin for remote sense pin connects to the ground remote sense point. Connect applications. Otherwise float when not used. to GND when not used.
BLOCK DIAGRAM
INTV V CC OUT_LCL VOUT V 1M 10k IN PGOOD > 1.4V = ON R1 < 1.1V = OFF MAX = 5V RUN VIN BOOST VIN CONVERTER 2.375V TO 5.5V + 1µF R2 CIN COMP 10k 5V 0.5% M1 INTERNAL COMP 0.35µH V V OUT OUT GND POWER 1.5V CONTROL 10A + VFB M2 COUT fSET 6.65k GND 1% RfSET 115k INTERNAL LOOP FILTER TRACK/SS INTVCC C + – DIFFN SS CLKIN DIFF MODE – AMP + DIFFP 250k DIFF_OUT INTVCC 1µF TEMP 4648 F01
Figure 1. Simplified LTM4648 Block Diagram
Rev A 8 For more information www.analog.com Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Typical Application Design Resources Related Parts Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Package Description Revision History Typical Application Design Resources Related Parts