TSSP57P38
www.vishay.com
Vishay Semiconductors
Rev. 2.2, 30-Mar-2021
1
Document Number: 82480
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
IR Detector for Mid Range Proximity Sensor
LINKS TO ADDITIONAL RESOURCES
DESCRIPTION
The TSSP57P38 is a compact infrared detector module for
proximity sensing application. It receives 38 kHz modulated
signals and has a peak sensitivity of 940 nm.
The length of the detector’s output pulse varies in proportion
to the amount of light reflected from the object being
detected.
FEATURES
• Height of 0.8 mm
• Up to 2 m for proximity sensing
• Receives 38 kHz modulated signal
• Photo detector and preamplifier in one package
• Low supply current
• Shielding against EMI
• Visible light is suppressed by IR filter
• Insensitive to supply voltage ripple and noise
• Supply voltage: 2.5 V to 5.5 V
• Material categorization: for definitions of compliance
please see
www.vishay.com/doc?99912
ORDERING CODE
Taping:
TSSP57P38TT1 - top view taped, 1800 pcs/reel
APPLICATIONS
• Object approach detection for activation of displays and
user consoles, signaling of alarms, etc.
• Simple gesture controls
• Differentiation of car arrival, static, car departure in
parking lots
• Reflective sensors for toilet flush
• Navigational sensor for robotics
BLOCK DIAGRAM
PROXIMITY SENSING
22531-1
33 k
Ω
2, 3, 6,
7, 8
4, 5
1
V
S
OUT
Demo-
GND
pass
AGC
Input
PIN
Band
dulator
Control circuit
16833_20
+3 V
IR emitter
+3 V
38 kHz
Out to
μC
T
SS
P57P38
Envelope
s
ignal
