Ordering number : EN7885 Bi-CMOS IC LA9450CL For Laser Diode Pulse Driver IC Overview The LA9450CL is a pulse driver IC for laser diode that enables low voltage operation. Features • Two-power voltage design for low power consumption. Two-mode switching function of DC (supplied from VCC1: 2.4V) and pulse luminescence (supplied from VCC2: 2.8V). • Low voltage (VCC1=2.0V min, VCC2=2.6V min) and low current consumption (ICC1=500µA) design. • Low saturation PNP driver is used for DC mode for the low VCEsat. • Small package ECSP3020-10 (size 3×2mm, pin pitch 0.65mm) Function • Laser driver • Two-mode switching functions of DC and pulse luminescence Specifications Maximum Ratings at Ta = 25°C Parameter Maximum supply voltage Allowable power dissipation Symbol Conditions VCC max Pd max For every 1°C rise in temperature over 25°C, Ratings Unit 4.5 V 150 mW the power is reduced by a factor of 1.55mW/°C Operating temperature Topr -10 to +70 °C Storage temperature Tstg -40 to +125 °C Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to "standard application", intended for the use as general electronics equipment (home appliances, AV equipment, communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee thereof. If you should intend to use our products for applications outside the standard applications of our customer who is considering such use and/or outside the scope of our intended standard applications, please consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our customer shall be solely responsible for the use. Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate the performance, characteristics, and functions of the described products in the independent state, and are not guarantees of the performance, characteristics, and functions of the described products as mounted in the customer' s products or equipment. To verify symptoms and states that cannot be evaluated in an independent device, the customer should always evaluate and test devices mounted in the customer' s products or equipment. 41107 MS IM B8-7514 No.7885-1/5 LA9450CL Operating Condition at Ta = 25°C Parameter Symbol Recommend supply voltage Operating supply voltage range Conditions Ratings Unit VCC1 2.4 V VCC2 2.8 V VCC1 opg 2.0 to 3.5 V VCC2 opg 2.6 to 3.5 V Electrical Characteristics at Ta = 25°C, VCC1 = 2.4V, VCC2 = 2.8V, RL = 25Ω Parameter Symbol Ratings Conditions min typ µA Supply current 1 ICC11 IIN=0µA, Vcont=VCC2 VCC1 DC mode ICC12 VSW=0V, RL=∞ VCC2 Supply current 2 ICC21 IIN=0µA, Vcont=VCC2 VCC1 Pulse mode ICC22 VSW=VCC2 VCC2 70 Supply current 3 ICC31 IIN=500µA, Vcont=0V VCC1 300 Pulse mode ICC32 VSW=VCC2 VCC2 68 80 Output current IOUT IIN=500µA, Vcont=0V 65 Current gain Igain IIN=500µA, Vcont=0V 130 IOUT maxP IIN=1200µA, Vcont=0V, RL=10Ω 140 165 210 mA Maximum output current DC IOUT maxD IIN=1200µA, Vcont=0V, RL=10Ω 150 175 210 mA Maximum output voltage Pulse VOUT maxP IIN=1000µA, Vcont=0V, VSW=VCC2 2.4 2.58 V Maximum output voltage DC VOUT maxD IIN=1000µA, Vcont=0V, VSW=0V 2.15 2.24 V Maximum output current Pulse 300 unit max 300 500 1500 0.1 5 µA 500 670 µA 110 150 µA 530 710 µA 93 mA 75 85 mA 150 170 Cont high level Vcont H VCC2/2 VCC2+0.2 V Cont low level Vcont L -0.2 0.4 V SW High level VSW H VCC1-0.7 VCC2+0.2 V SW Low level VSW L -0.2 0.15 V IIN Input resistance RIN 330 390 Ω * Rising edge time tr RL=10Ω, IOUT peak=40mA, 10→90% 2.9 4.1 ns * Falling edge time tf RL=10Ω, IOUT peak=40mA, 90→10% 6.1 8.6 ns 270 *Cont falling edge delay time Tondelay IOUT peak=55mA, cont 50%→Output 50% 6.8 8.9 ns *Cont falling edge delay time Tofdelay IOUT peak=55mA, cont 50%→Output 50% 10.8 14.1 ns * Design target value and no measurement is performed. Package Dimensions unit : mm (typ) 3291 Top View Bottom View 2.0 10 (0.2) 0.3 6 5 0.05 3.0 0.65 0.3 1 (0.015) 0.8 (0.8) 0.05 SANYO : ECSP3020-10 No.7885-2/5 LA9450CL Pin Assignment 1 NC 10 NC 2 IOUT 9 VCC1 LC9450CL 3 VCC2 8 NC 4 Cont 7 IIN 5 GND 6P/D SW Top view Block Diagram NC 1 IOUT 2 VCC2 3 Cont 4 Pulse DC Driver Driver SW Current 10 NC 9 VCC1 8 NC 7 IIN 6 P/D SW Control GND 5 No.7885-3/5 LA9450CL Pin Functions Pin Pin No. Name 1 NC 2 IOUT 3 VCC2 Pin Description Equivalent Circuit NC This is a LD driver output terminal. VCC2 VCC1 This is a supply terminal for a pulse driver output. In DC luminescence mode, voltage which is bigger than VCC1, and flowing are available. 4 Cont “Low” at pulse driver, and Iout output is ON. VCC2 5 GND 6 P/D SW This is a switching terminal for DC/Pulse. (Low: DC, High: Pulse) 7 IIN This is a controlled current input terminal. VCC1 330Ω (Input resistance 330Ω) VCC2 8 NC 9 VCC1 NC This is a power supply terminal of a controlled circuit and driver output at DC luminescence. This can be connected to VCC2 to use as a common power supply. 10 NC NC No.7885-4/5 LA9450CL Test Circuit 1 IOUT 10Ω Pulse DC Driver Driver 3 VCC1 9 8 SW VCC2 IIN Cont 0.1µF 4 5 Current Control 7 0.1µF RL 25Ω 2 10 H P/D SW 6 L GND Power supplies of IOUT drive current - Pulse mode: VCC2 DC mode: VCC1 SANYO Semiconductor Co.,Ltd. assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein. SANYO Semiconductor Co.,Ltd. strives to supply high-quality high-reliability products, however, any and all semiconductor products fail or malfunction with some probability. It is possible that these probabilistic failures or malfunction could give rise to accidents or events that could endanger human lives, trouble that could give rise to smoke or fire, or accidents that could cause damage to other property. When designing equipment, adopt safety measures so that these kinds of accidents or events cannot occur. Such measures include but are not limited to protective circuits and error prevention circuits for safe design, redundant design, and structural design. In the event that any or all SANYO Semiconductor Co.,Ltd. products described or contained herein are controlled under any of applicable local export control laws and regulations, such products may require the export license from the authorities concerned in accordance with the above law. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, or any information storage or retrieval system, or otherwise, without the prior written consent of SANYO Semiconductor Co.,Ltd. Any and all information described or contained herein are subject to change without notice due to product/technology improvement, etc. When designing equipment, refer to the "Delivery Specification" for the SANYO Semiconductor Co.,Ltd. product that you intend to use. Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for volume production. Upon using the technical information or products described herein, neither warranty nor license shall be granted with regard to intellectual property rights or any other rights of SANYO Semiconductor Co.,Ltd. or any third party. SANYO Semiconductor Co.,Ltd. shall not be liable for any claim or suits with regard to a third party's intellctual property rights which has resulted from the use of the technical information and products mentioned above. This catalog provides information as of April, 2007. Specifications and information herein are subject to change without notice. PS No.7885-5/5