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Ordering number : EN7885
LA9450CL
Overview Features
Bi-CMOS IC
For Laser Diode
Pulse Driver IC
The LA9450CL is a pulse driver IC for laser diode that enables low voltage operation.
* 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=500A) design. * Low saturation PNP driver is used for DC mode for the low VCEsat. * Small package ECSP3020-10 (size 3x2mm, pin pitch 0.65mm)
Function
* Laser driver * Two-mode switching functions of DC and pulse luminescence
Specifications
Maximum Ratings at Ta = 25C
Parameter Maximum supply voltage Allowable power dissipation Operating temperature Storage temperature Symbol VCC max Pd max Topr Tstg For every 1C rise in temperature over 25C, the power is reduced by a factor of 1.55mW/C -10 to +70 -40 to +125 C C Conditions Ratings 4.5 150 Unit V mW
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 = 25C
Parameter Recommend supply voltage Symbol VCC1 VCC2 Operating supply voltage range VCC1 opg VCC2 opg Conditions Ratings 2.4 2.8 2.0 to 3.5 2.6 to 3.5 Unit V V V V
Electrical Characteristics at Ta = 25C, VCC1 = 2.4V, VCC2 = 2.8V, RL = 25
Parameter Supply current 1 DC mode Supply current 2 Pulse mode Supply current 3 Pulse mode Output current Current gain Maximum output current Pulse Maximum output current DC Maximum output voltage Pulse Maximum output voltage DC Cont high level Cont low level SW High level SW Low level IIN Input resistance * Rising edge time * Falling edge time *Cont falling edge delay time *Cont falling edge delay time Symbol ICC11 ICC12 ICC21 ICC22 ICC31 ICC32 IOUT Igain IOUT maxP IOUT maxD VOUT maxP VOUT maxD Vcont H Vcont L VSW H VSW L RIN tr tf Tondelay Tofdelay RL=10, IOUT peak=40mA, 1090% RL=10, IOUT peak=40mA, 9010% IOUT peak=55mA, cont 50%Output 50% IOUT peak=55mA, cont 50%Output 50% Conditions min IIN=0A, Vcont=VCC2 VSW=0V, RL= IIN=0A, Vcont=VCC2 VSW=VCC2 IIN=500A, Vcont=0V VSW=VCC2 IIN=500A, Vcont=0V IIN=500A, Vcont=0V IIN=1200A, Vcont=0V, RL=10 IIN=1200A, Vcont=0V, RL=10 IIN=1000A, Vcont=0V, VSW=VCC2 IIN=1000A, Vcont=0V, VSW=0V VCC1 VCC2 VCC1 VCC2 VCC1 VCC2 300 70 300 68 65 130 140 150 2.4 2.15 VCC2/2 -0.2 VCC1-0.7 -0.2 270 330 2.9 6.1 6.8 10.8 300 Ratings typ 500 0.1 500 110 530 80 75 150 165 175 2.58 2.24 VCC2+0.2 0.4 VCC2+0.2 0.15 390 4.1 8.6 8.9 14.1 max 1500 5 670 150 710 93 85 170 210 210 mA mA V V V V V V ns ns ns ns A A A A A mA mA unit
* Design target value and no measurement is performed.
Package Dimensions
unit : mm (typ) 3291
Top View Bottom View
10
0.3
1
0.65
3.0
6 0.05
5
(0.8)
(0.015)
0.8
SANYO : ECSP3020-10
0.05
(0.2)
2.0
0.3
No.7885-2/5
LA9450CL
Pin Assignment
1 NC 10 NC
2 IOUT
9 VCC1
3 VCC2
LC9450CL
8 NC
4 Cont
7 IIN
5 GND
6P/D SW
Top view
Block Diagram
NC
1
10
NC
IOUT
Pulse 2 Driver
DC 9 Driver VCC1
VCC2
3
SW
8
NC
Cont
4
Current Control
7
IIN
GND
5
6
P/D SW
No.7885-3/5
LA9450CL
Pin Functions
Pin No. 1 2 Pin Name NC IOUT NC This is a LD driver output terminal. Pin Description Equivalent Circuit
VCC2
VCC1
3
VCC2
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 6
GND P/D SW This is a switching terminal for DC/Pulse. (Low: DC, High: Pulse)
VCC2
7
IIN
This is a controlled current input terminal. (Input resistance 330)
VCC1
8 9
NC 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
330
No.7885-4/5
LA9450CL
Test Circuit
1 IOUT 2 RL 25 10
10 VCC1 9
Pulse Driver
DC Driver
3 VCC2 4 0.1F
SW
8 IIN Current Control 7 0.1F H P/D SW L
Cont
5
6
GND
Power supplies of IOUT drive current - Pulse mode: VCC2 DC mode: VCC1
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This catalog provides information as of April, 2007. Specifications and information herein are subject to change without notice.
PS No.7885-5/5

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