MC10SX1130 데이터 시트보기 (PDF) - ON Semiconductor

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MC10SX1130

LED Driver

ON Semiconductor 

VEE Stretch VEE IOUT RSET IOUT VCC VEE

16 15 14 13 12 11 10 9

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VEE VCC VBB DIN DIN RTCO1 RTCO2 VEE

Figure 1. Pinout: SOIC−16

(Top View)

MC10SX1130

ECL

BUFFER

DIN

DIN

VBB

Stretch

PULSE WIDTH

ADJUST CIRCUIT

BIAS

CONTROL

RTCO1

RTCO2

Figure 2. Block Diagram

IOUT

IOUT

RSET

Table 1. PIN FUNCTION TABLE

Pin

Function

DIN

IOUT

STRETCH

RSET

RTCO1, RTCO2

Differential data inputs.

Differential open collector outputs.

Control input to select the amount of duty cycle pre-distortion. When the pin is left open, no pre-distortion is

introduced. If the pin is connected to VCC, the output LOW state current pulse width is increased by 155 ps. When it

is connected to VEE, the current pulse width is increased by 310 ps.

Resistor to set LED drive current. This resistor sets the tail current of the output current switch and should be con-

nected to the VEE plane. Since the RSET voltage compensation circuit is referenced to VEE, the RSET voltage will

track 1:1 with VEE changes, thus the voltage across the RSET resistor will remain constant.

Terminals for positive temperature tracking resistor. This resistor controls the temperature tracking rate of the voltage

at the RSET pin, which in turn sets the LED drive current tracking. If the two pins are shorted together, the nominal

tracking rate is 1.4mV/°C and when a 2 kW resistor is connected across the pins, the nominal tracking rate is

4.9 mV/°C.

VCC

Most positive power supply input. +5 V for PECL operation or ground for standard ECL operation.

VEE

Most negative power supply input. Ground for PECL operation or −5.2 V for standard ECL operation.

VBB

Reference voltage for use in single ended applications or when the input signal is AC coupled into the device.

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