I was able to solve using jQuery's focus (). I define that the field will have the focus and create an event for when it is in focus, in that event I send the data using Ajax. The $ n variable serves to differentiate the id's, so when it goes looking for the id's I put to PHP to give an echo in $ n, thus having every item that is found in the database an index defined by $ and each numbered id . In the end, the focus changes to the other input because it has no associated event, I did it because, in the tests it was repeating the sending of the last one infinite times and with that "way" solved. I do not need user interaction.
<?php
$connect = mysqli_connect("localhost", "login", "senha", "banco") or die (mysql_error ());
$sql = "SELECT 'ddd_deps', 'tel_deps', 'nome_deps' FROM 'deps' WHERE 'sit_deps' = 1 AND 'usu_login_usu' = '".$_GET['usu']."'; ";
$result = mysqli_query($connect, $sql);
$n=1;
//lista os dados em inputs para puxá-los pelo id
while ($row = mysqli_fetch_assoc($result)){
echo "<input type='text' name='ddd".$n."' id='ddd".$n."' required='required' value='".$row["ddd_deps"]."'>";
echo "<input type='text' name='tel".$n."' id='tel".$n."' required='required' value='".$row["tel_deps"]."'>";
echo "<input type='text' name='nome".$n."' id='nome".$n."' required='required' value='".$row["nome_deps"]."'><br>";
?>
<!--script para enviar para servidor via get-->
<script>
$(function(){
$("#nome<?php echo $n; ?>").focus();
});
$( "#nome<?php echo $n; ?>" ).focus(function() {
$.ajax({
type : 'get',
url : 'http://'+ $('#ip').val()+':8443/server',
data : 'ddd='+ $('#ddd<?php echo $n; ?>').val() +'&tel='+ $('#tel<?php echo $n; ?>').val() +'&nome='+ $('#nome<?php echo $n; ?>').val(),
dataType : 'html',
success : function(txt){
$("#ddd<?php echo $n; ?>").focus();
}
});
});
</script>
<?php
$n++;
}
?>