TPS842A データシートの表示（PDF） - Toshiba

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TPS842A

TOSHIBA Photo-IC Silicon Epitaxial Planar

Toshiba 

Note 3: Switching time measurement circuit and waveform.

TPS842A(F)

VOL.REG.

TPS842A(F),TPS844(F)

AMP

(INFRARED LED)

(TPS842A(F))

TPS844(F)

VOL.REG.

AMP

(INFRARED LED)

(TPS844(F))

Precautions

• When you consider a combined use with an LED, be sure to use an infrared LED. Visible rays in wavelength of

less than 700 nm cannot be detected.

• Make sure the shielding plate that is used to detect positions is manufactured from materials with superior

light-shielding characteristics. Insufficient shield can cause malfunction.

• Photo ICs contain a high-sensitivity amplifier. Toshiba recommends connecting a capacitor of about 0.01 μF that

has good high-frequency characteristics between VCC and GND near the device to prevent unwanted oscillation.

• Please install so that disturbance light is not irradiated by these products.

When disturbance light (incandescence light etc.) 700 nm or more is detected, it may incorrect-operate. Please

perform sufficient evaluation and verification by set.

• During 100 μs after turning on VCC, output voltage changes for stabilizing the inner circuit.

3

2007-10-01

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