SLDM-12D1ALR

SLDM-12D1ALR Datasheet

SLDM-12D1Ax

Part	Datasheet
SLDM-12D1ALR	SLDM-12D1ALR (pdf)

Related Parts	Information
SLDM-12D1ALG	SLDM-12D1ALG

PDF Datasheet Preview
SLDM-12D1Ax Non-Isolated DC-DC Converter The SLDM-12D1Ax power modules are non-isolated dc-dc converters that can deliver up to 12 A of output current. These modules operate over a wide range of input voltage VIN = 3 Vdc14.4 Vdc and provide a precisely regulated output voltage from Vdc to Vdc, programmable via an external resistor and PMBus control. Features include a digital interface using the PMBus protocol, remote On/Off, adjustable output voltage, over current and over temperature protection. The PMBus interface supports a range of commands to both control and monitor the module. The module also includes the Tunable LoopTM feature that allows the user to optimize the dynamic response of the converter to match the load with reduced amount of output capacitance leading to savings on cost and PWB area. Key Features & Benefits • VDC Input / VDC 12 A Output • Non-Isolated • DOSA approved footprint • Wide Input Voltage Range 3Vdc-14.4Vdc • Power Good Signal • Remote On/Off • Output Over Current Protection non-latching • Small size mm x mm x mm Max 0.8 in x in x in • Ultra low height design for very dense power applications. • Output voltage programmable from 0.6Vdc to 5.5Vdc via external resistor. • Digitally adjustable down to 0.45Vdc • Digital interface through the PMBusTM protocol • Ability to Sink and Source Current • Cost Efficient Open Frame Design • Over Temperature Protection • Tunable LoopTM to Optimize Dynamic output voltage response belpowersolutions.com SLDM-12D1Ax Key Features & Benefits Continued • Compliant to RoHS II EU “Directive 2011/65/EU” • Compliant to REACH Directive EC No 1907/2006 • Compatible in a Pb-free or SnPb reflow environment • Flexible output voltage sequencing EZ-SEQUENCE • Output overcurrent protection non-latching • Wide operating temperature range [-40°C to 105°C] • ISO 9001 and ISO 14001 certified manufacturing facilities • Class 2, Category 2, Non-Isolated DC/DC Converter refer to IPC-9592A • Compliant to RoHS II EU “Directive 2011/65/EU” • Compliant to REACH Directive EC No 1907/2006 • Compatible in a Pb-free or SnPb reflow environment • UL 60950-1Recognized, CSA C22.2 No. 60950-1-03 Certified • VDE 0805:2001-12 EN60950-1 Licensed • Distributed power architectures • Intermediate bus voltage applications • Telecommunications equipment • Servers and storage applications • Networking equipment • Industrial equipmen belpowersolutions.com SLDM-12D1Ax MODEL SELECTION MODEL NUMBER SLDM-12D1A0 SLDM-12D1AL OUTPUT VOLTAGE VDC INPUT VOLTAGE VDC MAX. OUTPUT CURRENT 12 A MAX. OUTPUT POWER NOTE Add “R” suffix at the end of the model number to indicate tape and reel packaging Standard . Add “G” suffix at the end of the model number to indicate tray packaging Option . PART NUMBER EXPLANATION TYPICAL EFFICIENCY 92% 92% S Mounting Type Surface mount LDM - RoHS Status Series code 12 Output Current D Wide input voltage range Output Voltage With sequencing Enable L active Low 0 High Package Type G Tray package R and reel packaging ABSOLUTE MAXIMUM RATINGS PARAMETER Continuous non-operating Input Voltage on SEQ SYNC VS+ Voltage on CLK DATA SMBALERT terminal Ambient temperature Storage Temperature Altitude DESC RIPT ION See Thermal Considerations section UNITS C The SLDM-12D1Ax power modules feature an On/Off pin for remote On/Off operation. Two On/Off logic options are available. In the Positive Logic On/Off option, device code suffix “0” see Ordering Information , the module turns ON during a logic High on the On/Off pin and turns OFF during a logic Low. With the Negative Logic On/Off option, device code suffix “L” see Ordering Information , the module turns OFF during logic High and ON during logic Low. The On/Off signal should be always referenced to ground. For either On/Off logic option, leaving the On/Off pin disconnected will turn the module ON when input voltage is present. For positive logic modules, the circuit configuration for using the On/Off pin is shown in Figure When the external transistor Q2 is in the OFF state, the internal transistor Q7 is turned ON, which turn Q3 OFF which keeps Q6 OFF and Q5 OFF. This allows the internal PWM #Enable signal to be pulled up by the internal 3.3V, thus turning the module ON. When transistor Q2 is turned ON, the On/Off pin is pulled low, which turns Q7 OFF which turns Q3, Q6 and Q5 ON and the internal PWM #Enable signal is pulled low and the module is OFF. A suggested value for Rpullup is For negative logic On/Off modules, the circuit configuration is shown in Fig. The On/Off pin should be pulled high with an external pull-up resistor suggested value for the 3V to 14V input range is 20Kohms . When transistor Q2 is in the OFF state, the On/Off pin is pulled high, transistor Q3 is turned ON. This turns Q6 ON, followed by Q5 turning ON which pulls the internal ENABLE low and the module is OFF. To turn the module ON, Q2 is turned ON pulling the On/Off pin low, turning transistor Q3 OFF, which keeps Q6 and Q5 OFF resulting in the PWM Enable pin going high. Figure 39 Figure 40 +VIN Rpullup Module VIN 20K ION/OFF V ON/OFF 3.3V 20K Q7 20K 100pF Q3 20K 4.7K 100K ENABLE Q5 20K 2K 20K Circuit configuration for using positive On/Off logic Module 3.3V +VIN Rpullup I ON/OFF V ON/OFF 100pF 4.7K 100K ENABLE Q5 20K 2K 20K Circuit configuration for using negative On/Off logic belpowersolutions.com SLDM-12D1Ax DIGITAL ON/OFF Please see the Digital Feature Descriptions section. MONOTONIC START-UP AND SHUTDOWN The SLDM-12D1Ax module has monotonic start-up and shutdown behavior for any combination of rated input voltage, output current and operating temperature range. STARTUP INTO PRE-BIASED OUTPUT The SLDM-12D1Ax module can start into a prebiased output as long as the prebias voltage is 0.5V less than the set output voltage. OUTPUT VOLTAGE PROGRAMMING The output voltage of the module is programmable to any voltage from 0.6Vdc to 5.5Vdc by connecting a resistor between the Trim and SIG_GND pins of the module. Certain restrictions apply on the output voltage set point depending on the input voltage. These are shown in the Output Voltage vs. Input Voltage Set Point Area plot in Fig. The Upper Limit curve shows that for output voltages lower than 1V, the input voltage must be lower than the maximum of 14.4V. The Lower Limit curve shows that for output voltages higher than 0.6V, the input voltage needs to be larger than the minimum of 3V. Figure 41 Input Voltage v

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SLDM-12D1Ax

Non-Isolated DC-DC Converter

The SLDM-12D1Ax power modules are non-isolated dc-dc converters that can deliver up to 12 A of output current. These modules operate over a wide range of input voltage VIN = 3 Vdc14.4 Vdc and provide a precisely regulated output voltage from Vdc to Vdc, programmable via an external resistor and PMBus control.

Features include a digital interface using the PMBus protocol, remote On/Off, adjustable output voltage, over current and over temperature protection. The PMBus interface supports a range of commands to both control and monitor the module.

The module also includes the Tunable LoopTM feature that allows the user to optimize the dynamic response of the converter to match the load with reduced amount of output capacitance leading to savings on cost and PWB area.

Key Features & Benefits
• VDC Input / VDC 12 A Output
• Non-Isolated
• DOSA approved footprint
• Wide Input Voltage Range 3Vdc-14.4Vdc
• Power Good Signal
• Remote On/Off
• Output Over Current Protection non-latching
• Small size mm x mm x mm Max 0.8 in x in x
in
• Ultra low height design for very dense power applications.
• Output voltage programmable from 0.6Vdc to 5.5Vdc via external
resistor.
• Digitally adjustable down to 0.45Vdc
• Digital interface through the PMBusTM protocol
• Ability to Sink and Source Current
• Cost Efficient Open Frame Design
• Over Temperature Protection
• Tunable LoopTM to Optimize Dynamic output voltage response
belpowersolutions.com

SLDM-12D1Ax

Key Features & Benefits Continued
• Compliant to RoHS II EU “Directive 2011/65/EU”
• Compliant to REACH Directive EC No 1907/2006
• Compatible in a Pb-free or SnPb reflow environment
• Flexible output voltage sequencing EZ-SEQUENCE
• Output overcurrent protection non-latching
• Wide operating temperature range [-40°C to 105°C]
• ISO 9001 and ISO 14001 certified manufacturing facilities
• Class 2, Category 2, Non-Isolated DC/DC Converter refer to IPC-9592A
• Compliant to RoHS II EU “Directive 2011/65/EU”
• Compliant to REACH Directive EC No 1907/2006
• Compatible in a Pb-free or SnPb reflow environment
• UL 60950-1Recognized, CSA C22.2 No. 60950-1-03 Certified
• VDE 0805:2001-12 EN60950-1 Licensed
• Distributed power architectures
• Intermediate bus voltage applications
• Telecommunications equipment
• Servers and storage applications
• Networking equipment
• Industrial equipmen
belpowersolutions.com

SLDM-12D1Ax

MODEL SELECTION

MODEL NUMBER

SLDM-12D1A0

SLDM-12D1AL

OUTPUT VOLTAGE VDC

INPUT VOLTAGE VDC

MAX. OUTPUT CURRENT 12 A

MAX. OUTPUT POWER

NOTE Add “R” suffix at the end of the model number to indicate tape and reel packaging Standard . Add “G” suffix at the end of the model number to indicate tray packaging Option .

PART NUMBER EXPLANATION

TYPICAL EFFICIENCY 92% 92%

S Mounting Type Surface mount

LDM -

RoHS Status Series code
12 Output Current

D Wide input voltage range

Output Voltage

With sequencing

Enable L active Low 0 High

Package Type G Tray package R and reel packaging

ABSOLUTE MAXIMUM RATINGS

PARAMETER Continuous non-operating Input Voltage on SEQ SYNC VS+ Voltage on CLK DATA SMBALERT terminal Ambient temperature Storage Temperature Altitude

DESC RIPT ION See Thermal Considerations section

UNITS
C
The SLDM-12D1Ax power modules feature an On/Off pin for remote On/Off operation. Two On/Off logic options are available. In the Positive Logic On/Off option, device code suffix “0” see Ordering Information , the module turns ON during a logic High on the On/Off pin and turns OFF during a logic Low. With the Negative Logic On/Off option, device code suffix “L” see Ordering Information , the module turns OFF during logic High and ON during logic Low. The On/Off signal should be always referenced to ground. For either On/Off logic option, leaving the On/Off pin disconnected will turn the module ON when input voltage is present.

For positive logic modules, the circuit configuration for using the On/Off pin is shown in Figure When the external transistor Q2 is in the OFF state, the internal transistor Q7 is turned ON, which turn Q3 OFF which keeps Q6 OFF and Q5 OFF. This allows the internal PWM #Enable signal to be pulled up by the internal 3.3V, thus turning the module ON. When transistor Q2 is turned ON, the On/Off pin is pulled low, which turns Q7 OFF which turns Q3, Q6 and Q5 ON and the internal PWM #Enable signal is pulled low and the module is OFF. A suggested value for Rpullup is

For negative logic On/Off modules, the circuit configuration is shown in Fig. The On/Off pin should be pulled high with an external pull-up resistor suggested value for the 3V to 14V input range is 20Kohms . When transistor Q2 is in the OFF state, the On/Off pin is pulled high, transistor Q3 is turned ON. This turns Q6 ON, followed by Q5 turning ON which pulls the internal ENABLE low and the module is OFF. To turn the module ON, Q2 is turned ON pulling the On/Off pin low, turning transistor Q3 OFF, which keeps Q6 and Q5 OFF resulting in the PWM Enable pin going high.

Figure 39

Figure 40
+VIN Rpullup

Module

VIN 20K

ION/OFF

V ON/OFF
3.3V
20K Q7 20K
100pF Q3 20K
4.7K 100K

ENABLE

Q5 20K 2K 20K

Circuit configuration for using positive On/Off logic

Module
3.3V
+VIN

Rpullup

I ON/OFF

V ON/OFF
100pF
4.7K
100K

ENABLE

Q5 20K 2K 20K

Circuit configuration for using negative On/Off logic
belpowersolutions.com

SLDM-12D1Ax

DIGITAL ON/OFF

Please see the Digital Feature Descriptions section.

MONOTONIC START-UP AND SHUTDOWN

The SLDM-12D1Ax module has monotonic start-up and shutdown behavior for any combination of rated input voltage, output current and operating temperature range.

STARTUP INTO PRE-BIASED OUTPUT

The SLDM-12D1Ax module can start into a prebiased output as long as the prebias voltage is 0.5V less than the set output voltage.

OUTPUT VOLTAGE PROGRAMMING

The output voltage of the module is programmable to any voltage from 0.6Vdc to 5.5Vdc by connecting a resistor between the Trim and SIG_GND pins of the module. Certain restrictions apply on the output voltage set point depending on the input voltage. These are shown in the Output Voltage vs. Input Voltage Set Point Area plot in Fig. The Upper Limit curve shows that for output voltages lower than 1V, the input voltage must be lower than the maximum of 14.4V. The Lower Limit curve shows that for output voltages higher than 0.6V, the input voltage needs to be larger than the minimum of 3V.

Figure 41

Input Voltage v

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Datasheet ID: SLDM-12D1ALR 521651