Miniature proximity sensor module AMS TMD26353M with 940nm IR VCSEL and dual photodiode architecture
Product Overview
The TMD2635 is a miniature proximity sensor module featuring advanced proximity measurement in a compact 1.0mm x 2.0mm x 0.5mm optical land grid array package. It incorporates a 940nm IR VCSEL and is factory calibrated for IR proximity response. The module provides object detection by sensing reflected IR energy and supports interrupt-driven detect/release events based on threshold settings. It offers wide offset adjustment for unwanted IR energy reflection and automatic ambient light subtraction for improved proximity results. Optimized for small wearable devices, it boasts reduced power consumption with a 1.8V supply and 1.8V IC bus, including a low-power sleep mode (0.7A) with fast wakeup. The dual photodiode architecture and offset emitter/detector package design enable superior proximity detection and offer industrial design flexibility.
Product Attributes
- Brand: ams OSRAM Group
- Product Name: TMD2635 Miniature Proximity Sensor Module
Technical Specifications
| Parameter | Min | Typ | Max | Units | Conditions |
| Supply voltage (VDD) | 1.7 | 1.8 | 2.0 | V | Sensor supply voltage |
| Supply voltage (VDD3) | 2.9 | 3.3 | 3.6 | V | IR emitter supply voltage |
| Operating ambient temperature | -30 | 85 | C | ||
| Average power dissipation (PDISS) | 20 | mW | Over a 1 second period | ||
| Sleep state current (IDD) | 0.7 | A | PON = 0, IC bus idle | ||
| Active state current (IDD) | 197 | 340 | 482 | A | PON = 1, actively integrating |
| Idle state current (IDD) | 30 | A | PON = 1, not actively integrating | ||
| Interrupt output low voltage (VOL) | 0.6 | V | 6 mA sink current | ||
| Leakage current (SDA, SCL, INT) | -5 | 5 | A | ||
| Input high voltage (VIH) | 1.26 | V | SCL, SDA input | ||
| Input low voltage (VIL) | 0.54 | V | SCL, SDA input | ||
| Wakeup time (TWakeup) | 100 | s | From sleep to active state | ||
| Time to IC command ready (TActive) | 1.5 | ms | From power-on | ||
| Near Proximity Response (Absolute) | 292 | 389 | 486 | counts | 18% reflective surface, 10mm distance |
| Far Proximity Response (Absolute) | 250 | 333 | 416 | counts | 18% reflective surface, 10mm distance |
| Near Proximity Part to Part Variation | 25 | % | |||
| Far Proximity Part to Part Variation | 25 | % | |||
| Near Proximity Noise | 2 | % | |||
| Far Proximity Noise | 2 | % | |||
| Near Proximity Response (No target) | 19 | 30 | 41 | counts | No target above module |
| Far Proximity Response (No target) | 19 | 30 | 41 | counts | No target above module |
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