From 0af34ac2e073c04f2ea716bef512ae6d0e8884f0 Mon Sep 17 00:00:00 2001
From: karwosts <32912880+karwosts@users.noreply.github.com>
Date: Tue, 24 Jun 2025 07:17:49 -0700
Subject: [PATCH] Document `max_sub_interval` for `derivative` (#39690)

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>
---
 source/_integrations/derivative.markdown | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/source/_integrations/derivative.markdown b/source/_integrations/derivative.markdown
index 07fc32a3744..503b8d443dd 100644
--- a/source/_integrations/derivative.markdown
+++ b/source/_integrations/derivative.markdown
@@ -37,6 +37,8 @@ Metric Prefix:
   description: Metric unit to prefix the derivative result ([Wikipedia](https://en.wikipedia.org/wiki/Unit_prefix)).
 Time unit:
   description: SI unit of time of the derivative. If this parameter is set, the unit of measurement will be set to **x/y** where **x** is the unit of the source sensor and **y** is the value of this parameter.
+Max sub-interval:
+  description: Normally, the derivative is calculated each time the source sensor updates. If a time is specified for this option, the derivative will also be recalculated if this amount of time elapses without an update of the source sensor.
 {% endconfiguration_basic %}
 
 ## YAML configuration
@@ -86,6 +88,11 @@ time_window:
   default: 0
   required: false
   type: time
+max_sub_interval:
+  description: Normally, the derivative is calculated each time the source sensor updates. If a time is specified for this option, the derivative will also be recalculated if this amount of time elapses without an update of the source sensor.
+  required: false
+  type: time
+  default: 0
 {% endconfiguration %}
 
 ## Temperature example