LTM8047 LINER [Linear Technology], LTM8047 Datasheet
LTM8047
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LTM8047 Summary of contents
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FEATURES n Complete Switch Mode Power Supply n 725VDC Isolation n Wide Input Voltage Range: 3.1V to 32V n V Output: OUT1 Up to 440mA (V = 2.5V, 24V OUT1 2.5V to 13V Output Range n V Low Noise Linear ...
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LTM8048 ABSOLUTE MAXIMUM RATINGS (Note RUN, BIAS ........................................................32V IN ADJ1, SS .....................................................................5V – V Relative to V ............................................16V OUT1 OUT – (V – GND – .................................36V IN OUT1 OUT – V Relative to ...
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ELECTRICAL CHARACTERISTICS temperature range, otherwise specifications are at T PARAMETER CONDITIONS Minimum Input DC Voltage BIAS = Voltage R OUT1 Quiescent Current V IN Not Switching V Line Regulation 6V ≤ V OUT1 V ...
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LTM8048 TYPICAL PERFORMANCE CHARACTERISTICS as in Table 25°C). A Efficiency vs Load 2.5V OUT1 BIAS = 5V 80 12V IN 70 24V 100 200 300 400 V CURRENT (mA) OUT1 ...
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TYPICAL PERFORMANCE CHARACTERISTICS as in Table 25°C). A BIAS Current vs V Load OUT1 12V OUT1 BIAS = 5V 12V 24V ...
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LTM8048 TYPICAL PERFORMANCE CHARACTERISTICS as in Table 25°C). A Junction Temperature Rise vs Load Current 1.2V OUT2 3. 12V IN 1 24V IN ...
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TYPICAL PERFORMANCE CHARACTERISTICS as in Table 25°C). A Junction Temperature Rise vs Load Current OUT2 100 150 V LOAD CURRENT (mA) OUT2 Unless ...
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LTM8048 PIN FUNCTIONS – V (Bank 1): V and V OUT1 OUT1 OUT output of the LTM8048 flyback stage. Apply an external capacitor between V and V OUT1 OUT to exceed V . OUT1 – – V (Bank 2): V ...
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BLOCK DIAGRAM V IN 0.1μF RUN BIAS* SS ADJ1 *DO NOT ALLOW BIAS VOLTAGE TO BE ABOVE V 1μF LOW NOISE CURRENT MODE CONTROLLER GND IN LTM8048 V OUT1 V OUT2 499k ADJ2 LDO BYP – V OUT 8048 BD ...
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LTM8048 OPERATION The LTM8048 is a stand-alone isolated flyback switching DC/DC power supply that can deliver up to 440mA of output current. This module provides a regulated output voltage programmable via one external resistor from 2.5V to 13V ...
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APPLICATIONS INFORMATION For most applications, the design process is straight forward, summarized as follows: 1. Look at Table 1a (or Table 1b, if the post linear regula- tor is used) and find the row that has the desired input range ...
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LTM8048 APPLICATIONS INFORMATION LTM8048 Table 1b. Recommended Component Values and Configuration for Specific OUT1 OUT2 3.1V to 32V 1.71V 1.2V 3.1V to 15V or Open 3.1V to 32V 2.02V 1.5V 3.1V to 15V or Open ...
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APPLICATIONS INFORMATION Isolation and Working Voltage The LTM8048 isolation is tested by tying all of the primary pins together, all of the secondary pins together and subjecting the two resultant circuits to a differential of ±725VDC for one second. This ...
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LTM8048 APPLICATIONS INFORMATION A few rules to keep in mind are: 1. Place the R and R resistors as close as possible ADJ1 ADJ2 to their respective pins. 2. Place the C capacitor as close as possible to the V ...
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APPLICATIONS INFORMATION θ is the natural convection junction-to-ambient air JA thermal resistance measured in a one cubic foot sealed enclosure. This environment is sometimes referred to as still air although natural convection causes the air to move. This value is ...
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LTM8048 TYPICAL APPLICATIONS 3.3V Flyback Converter LTM8048 15V RUN 2.2μF BIAS 4.7μF 8.66k ADJ1 SS GND 725VDC ISOLATION 12V Flyback Converter with Low Noise Bypass LTM8048 5VDC TO 23VDC RUN ...
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PACKAGE DESCRIPTION PIN FUNCTION PIN FUNCTION PIN FUNCTION PIN FUNCTION PIN FUNCTION PIN FUNCTION PIN FUNCTION PIN FUNCTION OUT2 OUT2 A2 ADJ2 B2 BYP C2 – – OUT OUT – ...
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LTM8048 PACKAGE DESCRIPTION Please refer to http://www.linear.com/designtools/packaging/ 18 for the most recent package drawings. Z bbb // 3.810 2.540 1.270 0.3175 0.000 0.3175 1.270 2.540 3.810 8048fa ...
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REVISION HISTORY REV DATE DESCRIPTION A 6/12 Added storage temperature range Clarify V and ADJ1 pin function description OUT2 Clarify R equation ADJ2 Updated Related Parts table Information furnished by Linear Technology Corporation is believed to be accurate and reliable. ...
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... Ultralow EMI 2A μModule Regulator LTM8033 Ultralow EMI 3A μModule Regulator LTM4612 Ultralow EMI 5A μModule Regulator LTM8061 Li-Ion/Polymer μModule Battery Charger LTM4613 Ultralow EMI 8A μModule Regulator LTM8047 725VDC Isolated μModule Converter 20 Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 ● FAX: (408) 434-0507 5.7V ...