| |  | Author | Message | | | wisdomchina | | Posted: Sat Jun 19, 2010 1:07 am Post subject: Do you know about TPS608A? | | | | Joined: 22 Apr 2008 Posts: 40 | The TPS608A is a kind of photo darlington transisitor. It is silicon NPN epitaxial planar. The device is designed for photo interrupter, photoelectric counter, position and rotational speed sensor as well as automatic control unit.
The features of TPS608A are as follows: (1)fast response speed;
(2)the same external shape as the infared LED TLN107A, and is best suited for combination with TLN107A as a photo interrupter.
What comes next is about the maximum ratings (Ta=25℃):
(1)collector-emitter voltage, VCEO: 30 V;
(2)emitter-collector voltage, VECO: 5 V;
(3)collector current, IC: 50 mA;
(4)collector power dissipation, PC: 75 mW;
(5)operating temperature range, Topr: -25 to 85℃;
(6)storage temperature, Tstg: -40 to 100℃.
The following is about the electrical characteristics (Ta=25℃):
(1)dark current, ID (ICEO): 0.005μA typ and 0.1μA at VCE=24 V, E=0;
(2)light current, IL(IC): 40μA min and 100μA typ at VCE=3 V, E=0.1 mW/cm2; (3)collector-emitter saturation voltage, VCE(sat): 0.15 V typ and 0.4 V max at IC=15μA, E=0.1 mW/cm2;
(4)switching time: rise time, tr: 6μs typ at VCC=5 V, IC=2 mA, RL=100Ω; fall time, tf: 6μs typ at VCC=5 V, IC=2 mA, RL=100Ω;
(5)peak sensitivity wavelength, λP: 820 nm typ;
(6)half value angle, θ1/2: ±15°typ. | |
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