electr onic optical characteristics (t a = 25?, and vcc = 3 v) parameter symbol min. t yp. max. units condition consumption current i cc 1.2 ma no signal input b.p .f . center frequency f o 38 khz peak w avelength p 940 nm reception distance l 0 8 m at the ray axis *1 l 45 5 half angle (horizontal) h 45 deg half angle (horizontal) v 45 deg high level pulse w idth t h 400 800 s at the ray axis *2 low level pulse w idth t l 400 800 s high level output v oltage v h 4.5 v low level output v oltage v l 0.2 0.5 v *1: the ray receiving surface at a vertex and relation to the ray axis in the range of = 0?and =45? *2: a range from 30 cm to the arrival distance. a verage value of 50 pulses. IRM-2638S5F4 page 1 of 4 * specifications subject to change without notice. dimensions are in mm ?.3 unless stated otherwise. idea, inc., 1 351 t itan w ay , brea, ca 92821 ph: 714-525-3302, 800-led-idea; fax: 714-525-3304 0512
absolute maximum ratings at t a = 25 ?c parameter symbol rating units supply v oltage v cc 0 ~ 6 v operating t emperature t opr -25 ~ +80 ?c storage t emperature t stg -40 ~ +85 ?c soldering t emperature a t sol 260 ?c a. 4 mm from mold body less than 10 seconds block diagram: application cir cuit: rc filter should be connected closely between v cc pin and gnd pin. IRM-2638S5F4 page 2 of 4 * specifications subject to change without notice. dimensions are in mm ?.3 unless stated otherwise. idea, inc., 1 351 t itan w ay , brea, ca 92821 ph: 714-525-3302, 800-led-idea; fax: 714-525-3304 0512
t est method: the specified electro-optical characteristics are satisfied under the following conditions at the controlled distance. 1. lighting conditions a. measurement location should be free of bright sunlight. b. ambient illumination should be from ordinary white fluorescent lamps (not high frequency lamps) and must be less than 10 lux at the module surface. (e e 10 lux) 2. standard transmitter a transmitter whose output is adjusted to v 0 = 400 mv p-p and with output waveform shown in fig.-1. the standard transmitter is specified according to the measurement method shown in fig.-2. 3. measuring system the measuring system is shown in fig.-3. IRM-2638S5F4 page 3 of 4 * specifications subject to change without notice. dimensions are in mm ?.3 unless stated otherwise. idea, inc., 1 351 t itan w ay , brea, ca 92821 ph: 714-525-3302, 800-led-idea; fax: 714-525-3304 0512
t ypical electr o-optical characteristics curves fig. 4. relative spectral sensitivity vs. w avelength fig. 5. relative t ransmission distance vs. direction fig. 6. output pulse length vs. arrival distance fig. 7. arrival distance vs. supply v oltage IRM-2638S5F4 page 4 of 4 * specifications subject to change without notice. dimensions are in mm ?.3 unless stated otherwise. idea, inc., 1 351 t itan w ay , brea, ca 92821 ph: 714-525-3302, 800-led-idea; fax: 714-525-3304 0512
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