Datasheet Linear Technology LTC3896

Manufacturer	Linear Technology
Series	LTC3896

150V Low IQ, Synchronous Inverting DC/DC Controller

Datasheets

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PDF, 2.0 Mb, Language: en, File uploaded: Mar 28, 2017, Pages: 36
150V Low IQ, Synchronous Inverting DC/DC Controller

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Packaging

	LTC3896EFE#PBF	LTC3896EFE#TRPBF	LTC3896HFE#PBF	LTC3896HFE#TRPBF	LTC3896IFE#PBF	LTC3896IFE#TRPBF
N	1	2	3	4	5	6
Package	TSSOP-38 Package Outline Drawing	TSSOP-38 Package Outline Drawing	TSSOP-38 Package Outline Drawing	TSSOP-38 Package Outline Drawing	TSSOP-38 Package Outline Drawing	TSSOP-38 Package Outline Drawing
Package Code	FE	FE	FE	FE	FE	FE
Package Index	05-08-1865	05-08-1865	05-08-1865	05-08-1865	05-08-1865	05-08-1865
Pin Count	38	38	38	38	38	38

Parametrics

Parameters / Models	LTC3896EFE#PBF	LTC3896EFE#TRPBF	LTC3896HFE#PBF	LTC3896HFE#TRPBF	LTC3896IFE#PBF	LTC3896IFE#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	DC2447A	DC2447A	DC2447A	DC2447A	DC2447A	DC2447A
Design Tools	LTspice Model,LTpowerCAD File	LTspice Model,LTpowerCAD File	LTspice Model,LTpowerCAD File	LTspice Model,LTpowerCAD File	LTspice Model,LTpowerCAD File	LTspice Model,LTpowerCAD File
Export Control	no	no	no	no	no	no
Features	Burst Mode, Resistor Set Frequency, External Synchronization, PolyPhase, Power Good	Burst Mode, Resistor Set Frequency, External Synchronization, PolyPhase, Power Good	Burst Mode, Resistor Set Frequency, External Synchronization, PolyPhase, Power Good	Burst Mode, Resistor Set Frequency, External Synchronization, PolyPhase, Power Good	Burst Mode, Resistor Set Frequency, External Synchronization, PolyPhase, Power Good	Burst Mode, Resistor Set Frequency, External Synchronization, PolyPhase, Power Good
Frequency, kHz	900	900	900	900	900	900
Frequency Adjust Range	50kHz to 900kHz	50kHz to 900kHz	50kHz to 900kHz	50kHz to 900kHz	50kHz to 900kHz	50kHz to 900kHz
Frequency Sync Range	75kHz to 850kHz	75kHz to 850kHz	75kHz to 850kHz	75kHz to 850kHz	75kHz to 850kHz	75kHz to 850kHz
Integrated Inductor	no	no	no	no	no	no
Ishutdown, µA	10	10	10	10	10	10
Isupply, mA	0.04	0.04	0.04	0.04	0.04	0.04
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 125	-40 to 125	-40 to 85	-40 to 85
Polyphase	yes	yes	yes	yes	yes	yes
Sense Resistor	Rsense, DCR	Rsense, DCR	Rsense, DCR	Rsense, DCR	Rsense, DCR	Rsense, DCR
Switch Current, A	25	25	25	25	25	25
Synchronous	yes	yes	yes	yes	yes	yes
Topology	Inverting	Inverting	Inverting	Inverting	Inverting	Inverting
Topology 1	Inverting	Inverting	Inverting	Inverting	Inverting	Inverting
Vin Max, V	150	150	150	150	150	150
Vin Min, V	4	4	4	4	4	4
Vin Min Startup, V	4	4	4	4	4	4
Vout Max, V	60	60	60	60	60	60
Vout Maximum	60V	60V	60V	60V	60V	60V
Vout Min, V	0.8	0.8	0.8	0.8	0.8	0.8
Vref Accuracy Over Temp, %	1.5	1.5	1.5	1.5	1.5	1.5
Vswitch Max, V	140	140	140	140	140	140

Eco Plan

	LTC3896EFE#PBF	LTC3896EFE#TRPBF	LTC3896HFE#PBF	LTC3896HFE#TRPBF	LTC3896IFE#PBF	LTC3896IFE#TRPBF
RoHS	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant

Design Notes

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High Voltage, High Efficiency Positive to Negative Converter &mdash DN561
PDF, 593 Kb, File published: Feb 27, 2017
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High Voltage, High Efficiency Positive to Negative
Converter
Design Note 561
Victor Khasiev
Introduction
Positive to negative conversion (inverting output) is
widely used in LCD devices, OLED displays, audio
amplifiers, industrial machinery, semiconductor
manufacturing process control equipment, measurement tools, testing systems, LED drivers and battery
chargers. Many of these applications require high
power levels and extended input voltage ranges, two
inherent features of the LTC3896 positive to negative
controller. This controller is especially well suited for
automotive applications due to its ability to handle
very high input and output voltages (total voltage
stress can reach 150V), its ability to drive standard
level MOSFETs and its low operating quiescent current 40ВµA (10ВµA in shutdown). Wide 7V to 72V Input to -12V at 5A Output
Figure 1 shows a positive to negative converter
based on the LTC3896. This solution delivers -12V
at 5A from a 7V to 72V input voltage range. In the
automotive market, the LTC3896вЂ™s ability to handle
high input voltages eliminates the need for bulky and
costly voltage suppressors, while the low minimum …

Model Line

Series: LTC3896 (6)

LTC3896EFE#PBF LTC3896EFE#TRPBF LTC3896HFE#PBF LTC3896HFE#TRPBF LTC3896IFE#PBF LTC3896IFE#TRPBF

Manufacturer's Classification

Power Management > Switching Regulator > Inverting Regulators
Space & Harsh Environment > Extended Temperature Plastic (H & MP) > Extended Temperature (H & MP) Switching Regulators