Datasheet Linear Technology LT3845A — Ficha de datos

Fabricante	Linear Technology
Serie	LT3845A

Controlador reductor de modo de corriente síncrona de alto voltaje con frecuencia de funcionamiento ajustable

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PDF, 295 Kb, Idioma: en, Archivo subido: sept 19, 2017, Páginas: 26
High Voltage Synchronous Current Mode Step-Down Controller with Adjustable Operating Frequency

Extracto del documento

Precios

Embalaje

	LT3845AEFE#PBF	LT3845AEFE#TRPBF	LT3845AIFE#PBF	LT3845AIFE#TRPBF	LT3845AMPFE#PBF	LT3845AMPFE#TRPBF
N	1	2	3	4	5	6
Package	TSSOP-16 Dibujo del esquema del paquete	TSSOP-16 Dibujo del esquema del paquete	TSSOP-16 Dibujo del esquema del paquete	TSSOP-16 Dibujo del esquema del paquete	TSSOP-16 Dibujo del esquema del paquete	TSSOP-16 Dibujo del esquema del paquete
Package Code	FE	FE	FE	FE	FE	FE
Package Index	05-08-1663 (BC)	05-08-1663 (BC)	05-08-1663 (BC)	05-08-1663 (BC)	05-08-1663 (BC)	05-08-1663 (BC)
Pin Count	16	16	16	16	16	16

Paramétricos

Parameters / Models	LT3845AEFE#PBF	LT3845AEFE#TRPBF	LT3845AIFE#PBF	LT3845AIFE#TRPBF	LT3845AMPFE#PBF	LT3845AMPFE#TRPBF
Architecture	Constant Frequency Current Mode	Constant Frequency Current Mode	Constant Frequency Current Mode	Constant Frequency Current Mode	Constant Frequency Current Mode	Constant Frequency Current Mode
Demo Boards	DC1619A	DC1619A	DC1619A	DC1619A	DC1619A	DC1619A
Design Tools	LTspice File,LTpowerCAD Model	LTspice File,LTpowerCAD Model	LTspice File,LTpowerCAD Model	LTspice File,LTpowerCAD Model	LTspice File,LTpowerCAD Model	LTspice File,LTpowerCAD Model
Export Control	no	no	no	no	no	no
Features	Resistor Set Frequency, External Synchronization, Burst Mode	Resistor Set Frequency, External Synchronization, Burst Mode	Resistor Set Frequency, External Synchronization, Burst Mode	Resistor Set Frequency, External Synchronization, Burst Mode	Resistor Set Frequency, External Synchronization, Burst Mode	Resistor Set Frequency, External Synchronization, Burst Mode
Frequency, kHz	500	500	500	500	500	500
Frequency Adjust Range	100kHz - 500kHz	100kHz - 500kHz	100kHz - 500kHz	100kHz - 500kHz	100kHz - 500kHz	100kHz - 500kHz
Frequency Sync Range	100kHz - 500kHz	100kHz - 500kHz	100kHz - 500kHz	100kHz - 500kHz	100kHz - 500kHz	100kHz - 500kHz
Integrated Inductor	no	no	no	no	no	no
Ishutdown, µA	20	20	20	20	20	20
Isupply, mA	0.12	0.12	0.12	0.12	0.12	0.12
Max Phases	2	2	2	2	2	2
Monolithic	no	no	no	no	no	no
Number of Outputs	1	1	1	1	1	1
Operating Temperature Range, °C	0 to 85	0 to 85	-40 to 85	-40 to 85	-55 to 125	-55 to 125
Output Current, A	15	15	15	15	15	15
Polyphase	yes	yes	yes	yes	yes	yes
Sense Resistor	Rsense	Rsense	Rsense	Rsense	Rsense	Rsense
Switch Current, A	15	15	15	15	15	15
Synchronous	yes	yes	yes	yes	yes	yes
Topology	Buck	Buck	Buck	Buck	Buck	Buck
Vin Max, V	60	60	60	60	60	60
Vin Min, V	4	4	4	4	4	4
Vout Max, V	36	36	36	36	36	36
Vout Maximum	36V	36V	36V	36V	36V	36V
Vout Min, V	1.231	1.231	1.231	1.231	1.231	1.231
Vref Accuracy Over Temp, %	1.2	1.2	1.2	1.2	1.2	1.2

Plan ecológico

	LT3845AEFE#PBF	LT3845AEFE#TRPBF	LT3845AIFE#PBF	LT3845AIFE#TRPBF	LT3845AMPFE#PBF	LT3845AMPFE#TRPBF
RoHS	Obediente	Obediente	Obediente	Obediente	Obediente	Obediente

Linea modelo

Serie: LT3845A (6)

LT3845AEFE#PBF LT3845AEFE#TRPBF LT3845AIFE#PBF LT3845AIFE#TRPBF LT3845AMPFE#PBF LT3845AMPFE#TRPBF

Clasificación del fabricante

Power Management > Switching Regulator > Step-Down (Buck) Regulators > High Input Voltage Buck | External Power Switch Buck Controllers
Space & Harsh Environment > Extended Temperature Plastic (H & MP) > Extended Temperature (H & MP) Switching Regulators