YNV12T16-0 POWER ONE, YNV12T16-0 Datasheet - Page 5

• Manufacturer Part Number: YNV12T16-0
• Description: DC/DC Converters & Regulators
• Manufacturer: POWER ONE

Specifications of YNV12T16-0

• Product: Non-Isolated / POL
• Output Power: 88 W
• Input Voltage Range: 9.6 V to 14 V
• Input Voltage (nominal): 12 V
• Number Of Outputs: 1
• Output Current (channel 1): 16 A
• Package / Case Size: SIP
• Output Type: Regulated
• Output Voltage: 0.7525 V to 5.5 V
• Package / Case: SIP
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Operation
Input and Output Impedance
The YNV12T16 converter should be connected via
a low impedance to the DC power source. In many
applications, the inductance associated with the
distribution from the power source to the input of
the converter can affect the stability of the
converter. It is recommended to use decoupling
capacitors in order to ensure stability of the
converter and reduce input ripple voltage. The
converter has an internal input capacitance of
32 μF with very low ESR ceramic capacitors.
In a typical application, low - ESR tantalum or
POS capacitors will be sufficient to provide
adequate ripple voltage filtering at the input of the
converter. However, very low ESR ceramic
capacitors 47 μF-100 μF are recommended at the
input of the converter in order to minimize the
input ripple voltage. They should be placed as
close as possible to the input pins of the converter.
The YNV12T16 has been designed for stable
operation with or without external capacitance.
Low ESR ceramic capacitors (minimum 47 μF)
placed as close as possible to the load are
recommended for improved transient performance
and lower output voltage ripple.
It is important to keep low resistance and low
inductance PCB traces when the connecting load
to the output pins of the converter in order to
maintain good load regulation.
ON/OFF (Pin 10)
The ON/OFF pin is used to turn the power
converter on or off remotely via a system signal.
There are two remote control options available,
positive logic (standard option) and negative logic,
and both are referenced to GND. Typical
connections are shown in Fig. A.
The positive logic version turns the converter on
when the ON/OFF pin is at a logic high or left
open, and turns the converter off when at a logic
low or shorted to GND.
ZD-02039 Rev. 3.2, 24-Jun-10
9.6-14 VDC Input; 0.7525-5.5 VDC Programmable @ 16A
YNV12T16 DC-DC Converter Data Sheet
Page 5 of 28
The negative logic version turns the converter on
when the ON/OFF pin is at a logic low or left open,
and turns the converter off when the ON/OFF pin
is at a logic high or connected to Vin.
The ON/OFF pin is internally pulled-up to Vin for a
positive logic version, and pulled-down for a
negative logic version. A TTL or CMOS logic gate,
open collector (open drain) transistor can be used
to drive ON/OFF pin. When using an open
collector (open drain) transistor with a negative
logic option, add a pull-up resistor (R*) of 75 kΩ to
Vin as shown in Fig. A; This device must be
capable of:
- sinking up to 0.2 mA at a low level voltage of
 0.8 V
- sourcing up to 0.25 mA at a high logic level of
2.3V – 5V
- sourcing up to 0.75 mA when connected to Vin.
Remote Sense (Pin 3)
The remote sense feature of the converter
compensates for voltage drops occurring only
between Vout pin of the converter and the load.
The SENSE (Pin 3) pin should be connected at
the load or at the point where regulation is
required (see Fig. B). There is no sense feature on
the output GND return pin, where a solid ground
plane is recommended to provide a low voltage
drop.
If remote sensing is not required, the SENSE pin
must be connected to the Vout pin to ensure the
converter will regulate at the specified output
voltage. If these connections are not made, the
converter will deliver an output voltage that is
slightly higher than the specified value.
Vin
Vin
CONTROL
Fig. A: Circuit configuration for ON/OFF function.
INPUT
R* is for negative logic option only
R*
www.power-one.com
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GND
Vin
ON/OFF
Nex
(Top View)
Converter
TM
-v
Series
SENSE
TRIM
GND
Vout
5
Rload