Datasheet LT8613 (Analog Devices) - 10
| Hersteller | Analog Devices |
| Beschreibung | 42V, 6A Synchronous Step-Down Regulator with Current Sense and 3μA Quiescent Current |
| Seiten / Seite | 24 / 10 — pin FuncTions ISN (Pin 26):. ICTRL (Pin 28):. IMON (Pin 27):. GND … |
| Dateiformat / Größe | PDF / 367 Kb |
| Dokumentensprache | Englisch |
pin FuncTions ISN (Pin 26):. ICTRL (Pin 28):. IMON (Pin 27):. GND (Exposed Pad Pin 29):. block DiagraM
Textversion des Dokuments
LT8613
pin FuncTions ISN (Pin 26):
Current Sense (–) Pin. This is the inverting
ICTRL (Pin 28):
Current Adjustment Pin. ICTRL adjusts input to the current sense amplifier. the maximum ISP-ISN drop before the LT8613 reduces
IMON (Pin 27):
Proportional-to-Current Monitor Output. output current. Connect directly to INTVCC or float for This pin sources a voltage 20 times the voltage between full-scale ISP-ISN threshold of 50mV or apply values the ISP and ISN pins such that: between GND and 1V to modulate current limit. There is an internal 1.4µA pull-up current on this pin. Float or tie VIMON = 20 • (VISP-VISN). to INTVCC when unused. IMON can source 200µA and sink 10µA. Float IMON if
GND (Exposed Pad Pin 29):
Ground. The exposed pad unused. must be connected to the negative terminal of the input capacitor and soldered to the PCB in order to lower the thermal resistance.
block DiagraM
VIN VIN CIN – INTERNAL 0.97V REF + 3.4V BIAS R3 1V + REG OPT EN/UV – SHDN SLOPE COMP INTV R4 CC OPT C OSCILLATOR VCC ERROR PG 200kHz TO 2.2MHz BST ±9% AMP + V C + C BURST SWITCH M1 BST V – DETECT LOGIC SW L OUT AND ANTI- SHOOT SHDN C1 R1 TSD THROUGH M2 INTVCC UVLO R2 VIN UVLO FB PGND C SHDN SS TSD (OPT) 2.1µA VIN UVLO TR/SS R + ISP C R F R T RT – – SEN R ISN + VOUT SYNC + 1.0V 20R COUT 1× 1.4µA GND ICTRL IMON 8613 BD 8613f 10 For more information www.linear.com/LT8613 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Typical Application Related Parts
pin FuncTions ISN (Pin 26):
Current Sense (–) Pin. This is the inverting
ICTRL (Pin 28):
Current Adjustment Pin. ICTRL adjusts input to the current sense amplifier. the maximum ISP-ISN drop before the LT8613 reduces
IMON (Pin 27):
Proportional-to-Current Monitor Output. output current. Connect directly to INTVCC or float for This pin sources a voltage 20 times the voltage between full-scale ISP-ISN threshold of 50mV or apply values the ISP and ISN pins such that: between GND and 1V to modulate current limit. There is an internal 1.4µA pull-up current on this pin. Float or tie VIMON = 20 • (VISP-VISN). to INTVCC when unused. IMON can source 200µA and sink 10µA. Float IMON if
GND (Exposed Pad Pin 29):
Ground. The exposed pad unused. must be connected to the negative terminal of the input capacitor and soldered to the PCB in order to lower the thermal resistance.
block DiagraM
VIN VIN CIN – INTERNAL 0.97V REF + 3.4V BIAS R3 1V + REG OPT EN/UV – SHDN SLOPE COMP INTV R4 CC OPT C OSCILLATOR VCC ERROR PG 200kHz TO 2.2MHz BST ±9% AMP + V C + C BURST SWITCH M1 BST V – DETECT LOGIC SW L OUT AND ANTI- SHOOT SHDN C1 R1 TSD THROUGH M2 INTVCC UVLO R2 VIN UVLO FB PGND C SHDN SS TSD (OPT) 2.1µA VIN UVLO TR/SS R + ISP C R F R T RT – – SEN R ISN + VOUT SYNC + 1.0V 20R COUT 1× 1.4µA GND ICTRL IMON 8613 BD 8613f 10 For more information www.linear.com/LT8613 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Typical Application Related Parts