DCL12S0A0S20NFA FEATURES Delphi DCL, Non-Isolated Point of Load DC/DC Power Modules: 4.5~14Vin, 0.69V-5V/20Aout The Delphi Series DCL, 4.5-14V input, single output, High efficiency: 93% @ 12Vin, 5V/20A out 92% @ 12Vin, 3.3V/20A out 90% @ 12Vin, 2.5V/20A out 89% @ 12Vin, 1.8V/20A out 83% @ 12Vin, 1.2V/20A out 79% @ 10Vin, 0.69V/20A out Small size and low profile: 33.02x 13.46x 8.5mm (1.3”x 0.53”x 0.
TECHNICAL SPECIFICATIONS PARAMETER NOTES and CONDITIONS DCL12S0A0S20NFA Min. ABSOLUTE MAXIMUM RATINGS Input Voltage (Continuous) Sequencing Voltage Operating Ambient Temperature Storage Temperature INPUT CHARACTERISTICS Operating Input Voltage Input Under-Voltage Lockout Turn-On Voltage Threshold Turn-Off Voltage Threshold Lockout Hysteresis Voltage Maximum Input Current No-Load Input Current (Io = 0, module enabled) Off Converter Input Current (VIN = 12.
ELECTRICAL CHARACTERISTICS CURVES Figure 1: Converter efficiency vs. output current (Vout= 0.69V) Figure 2: Converter efficiency vs. output current (1.2V out) Figure 3: Converter efficiency vs. output current (1.8V out) Figure 4: Converter efficiency vs. output current (2.5V out) Figure 5: Converter efficiency vs. output current 3.3V out) Figure 6: Converter efficiency vs. output current (5.0V out) DS_DCL12S0A0S20NFA_06182014 E-mail: DCDC@delta.com.tw http://www.deltaww.
ELECTRICAL CHARACTERISTICS CURVES (CON.) Figure 7: Output ripple & noise at 7Vin, 0.69V/20A out Figure 8: Output ripple & noise at 12Vin, 1.8V/20A out CH1:VOUT, 20mV/div, 1uS/div CH1:VOUT, 20mV/div, 1uS/div Figure 9: Output ripple & noise at 12Vin, 3.3V/20A out Figure 10: Output ripple & noise at 12Vin, 5.0V/20A out CH1:VOUT, 20mV/div, 1uS/div CH1:VOUT, 20mV/div, 1uS/div DS_DCL12S0A0S20NFA_06182014 E-mail: DCDC@delta.com.tw http://www.deltaww.
ELECTRICAL CHARACTERISTICS CURVES (CON.) Figure 11: Turn on delay time at 7Vin, 0.69V/20A out. Figure 12: Turn on delay time at 12Vin, 1.8V/20A out. (Green : VOUT, 0.5V/div, Yellow: VIN, 2V/div. 2mS/div) (Green : VOUT, 0.5V/div, Yellow: VIN, 5V/div. 2mS/div) (Yellow : VOUT, 0.2V/div, Green: VIN, 5V/div. 2mS/div) Figure 13: Turn on delay time at 12Vin, 3.3V/20A out. Figure 14: Turn on delay time at 12Vin, 5.0V/20A out. (Green : VOUT, 1V/div, Yellow: VIN, 5V/div.
ELECTRICAL CHARACTERISTICS CURVES (CON.) Figure 15: Turn on delay time at remote on 7Vin, 0.69V/20A out. Figure16: Turn on delay time at remote on 12Vin, 1.8V/20A out. (Yellow: VOUT, 0.5V/div, Green: ON/OFF, 2V/div, 2mS/div) (Yellow: VOUT, 0.5V/div, Green: ON/OFF, 2V/div, 2mS/div) Figure 17: Turn on delay time at remote on 12Vin, 3.3V/20A out. Figure 18: Turn on delay time at remote on 12Vin, 5.0V/20A out.
ELECTRICAL CHARACTERISTICS CURVES Figure 19: Transient response to dynamic load change at Figure 20: Transient response to dynamic load change at 2.5A/μS from 50%~ 100%~50% of Io, max at 7Vin, 0.69Vout 2.5A/μS from 50%~ 100%~50% of Io, max at 12Vin, 1.8Vout (Cout = 1uF ceramic, 47uF*2 +10μFceramic) (Cout = 1uF ceramic, 47uF*2 +10μFceramic) Yellow : VOUT, 0.2V/div, 100uS/div Yellow : VOUT, 0.
ELECTRICAL CHARACTERISTICS CURVES (CON.) Figure 23: Tracking function, Vtracking=6V, Vout= 5.0V, full load Figure 24:Tracking function, Vtracking=6V, Vout= 5.0V, full load Yellow : VOUT, (1V/div), Green: Tracking, (1V/div), 500uS/div Yellow : VOUT, (1V/div), Green: Tracking, (1V/div), 10mS/div Figure 25: Tracking function, Vtracking=0.8V, Vout=0.69V, full load Figure 26:Tracking function, Vtracking=0.8V, Vout= 0.69V, full load Yellow: VOUT, 0.2V/div, Green : Tracking, 0.
TEST CONFIGURATIONS DESIGN CONSIDERATIONS Input Source Impedance To maintain low noise and ripple at the input voltage, it is critical to use low ESR capacitors at the input to the module. A highly inductive source can affect the stability of the module. An input capacitance must be placed close to the modules input pins to filter ripple current and ensure module stability in the presence of inductive traces that supply the input voltage to the module.
FEATURES DESCRIPTIONS Input Under voltage Lockout At input voltages below the input under voltage lockout limit, the Remote On/Off module operation is disabled. The module will begin to operate at The DCL series power modules have an On/Off pin for remote an input voltage above the under voltage lockout turn-on threshold. On/Off operation. Both positive and negative On/Off logic options are available in the DCL series power modules.
FEATURES DESCRIPTIONS (CON.) Table 1 provides Rtrim values required for some common output voltages. By using a ±0.5% tolerance trim resistor with a Output Voltage Programming TC of ±100ppm, a set point tolerance of ±1.5% can be achieved as The output voltage of the DCL can be programmed to any specified in the electrical specification. voltage between 0.69Vdc and 5.5Vdc by connecting one resistor (shown as Rtrim in Figure 33) between the TRIM and GND pins of the module.
FEATURE DESCRIPTIONS (CON.) Voltage Margining When an analog voltage is applied to the SEQ pin, the output voltage tracks this voltage until the output reaches the set-point voltage. The final value of the SEQ voltage must be Output voltage margining can be implemented in the DCL modules by connecting a resistor, R margin-up, from the Trim pin to the ground pin for margining-up the output voltage and by connecting a resistor, Rmargin-down, from the Trim pin to the output pin for margining-down.
FEATURE DESCRIPTIONS (CON.) Power Good The DCL modules provide a Power Good (PGOOD) signal After the 10msec delay, an analog voltage is applied to the SEQ that is implemented with an open-drain output to indicate that pin and the output voltage of the module will track this voltage on the output voltage is within the regulation limits of the power a one-to-one volt bases until the output reaches the set-point module. The PGOOD signal will be de-asserted to a low state voltage.
THERMAL CONSIDERATIONS THERMAL CURVES Thermal management is an important part of the system design. To ensure proper, reliable operation, sufficient cooling AIRFLOW of the power module is needed over the entire temperature range of the module. Convection cooling is usually the dominant mode of heat transfer. Hence, the choice of equipment to characterize the thermal Figure 39: Temperature measurement location performance of the power module is a wind tunnel.
THERMAL CURVES Output Current(A) THERMAL CURVES DCL12S0A0S20NFA Output Current vs. Ambient Temperature and Air Velocity @Vin = 12V, Vo=2.5V (Airflow From Pin10 To Pin8) 20 Output Current(A) DCL12S0A0S20NFA Output Current vs. Ambient Temperature and Air Velocity @Vin = 7V, Vo=0.
PICK AND PLACE LOCATION RECOMMENDED PAD LAYOUT SURFACE-MOUNT TAPE & REEL DS_DCL12S0A0S20NFA_06182014 E-mail: DCDC@delta.com.tw http://www.deltaww.
LEAD (Sn/Pb) PROCESS RECOMMEND TEMP. PROFILE Note: The temperature refers to the pin of DCL, measured on the pin Vout joint. LEAD FREE (SAC) PROCESS RECOMMEND TEMP. PROFILE Temp. Peak Temp. 240 ~ 245 ℃ 220℃ Ramp down max. 4℃ /sec. 200℃ 150℃ Preheat time 90~120 sec. Time Limited 75 sec. above 220℃ Ramp up max. 3℃ /sec. 25℃ Time Note: The temperature refers to the pin of DCL, measured on the pin Vout joint.. DS_DCL12S0A0S20NFA_06182014 E-mail: DCDC@delta.com.tw http://www.deltaww.
MECHANICAL DRAWING DS_DCL12S0A0S20NFA_06182014 E-mail: DCDC@delta.com.tw http://www.deltaww.
PART NUMBERING SYSTEM DCL 12 S 0A0 S 20 N Product Series Input Voltage Numbers of Outputs Output Voltage Package Type Output Current On/Off logic DCT-3A DCS - 6A DCM - 12A DCL - 20A 04 - 2.4~5.5V 12 – 4.