LB8688LF Monolithic Digital Lens Driver Cell Phone Cameras

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LB8688LF Monolithic Digital Lens Driver Cell Phone Cameras

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Ordering number ENA0983
LB8688LF
Monolithic Digital
Lens Driver Cell Phone Cameras
LB8688LF lens driver provided miniature package suitable used cell phone cameras. ideal cell phone cameras, cameras, other portable devices.
Functions
input control On-chip 0.5-channel constant current drive circuit Constant current detection voltage: 0.2V Minimal number external components Wide operating voltage range: 2.5V 7.5V voltage difference level between input voltage power supply Built-in thermal protection circuit
Specifications
Absolute Maximum Ratings 25°C
Parameter Maximum supply voltage Output application voltage Input application voltage drain current Allowable power dissipation Operating temperature Storage temperature Symbol VOUT IGND Topr Tstg OUT1 PWM_IN, channel Mounted specified board* Conditions Ratings -0.3 +8.0 VCC+VSF -0.3 +8.0 +150 Unit
Mounted specified board: glass epoxy, four layers substrate.
SANYO Semiconductor Co.,Ltd. products described contained herein are, with regard "standard application", intended general electronics equipment (home appliances, equipment, communication device, office equipment, industrial equipment etc.). products mentioned herein shall intended "special application" (medical equipment whose purpose sustain life, aerospace instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety equipment etc.) that shall require extremely high level reliability directly threaten human lives case failure malfunction product cause harm human bodies, shall they grant guarantee thereof. should intend products applications outside standard applications customer considering such and/or outside scope intended standard applications, please consult with prior intended use. there consultation inquiry before intended use, customer shall solely responsible use. Specifications SANYO Semiconductor Co.,Ltd. products described contained herein stipulate performance, characteristics, functions described products independent state, guarantees performance, characteristics, functions described products mounted customer' products equipment. verify symptoms states that cannot evaluated independent device, customer should always evaluate test devices mounted customer' products equipment.
12308 20060421-S00002 A0983-1/4
LB8688LF
Allowable Operating Range 25°C
Parameter Supply voltage Maximum output current value Input level voltage Input level voltage Symbol PWM_IN, Conditions Ratings -0.3 +0.7 Unit
Electrical Characteristics 25°C, 2.8V
Parameter Source current Symbol ICC0 ICC1 Output saturation voltage VOSAT1 VOSAT2 output current output current ratio IOUT2 IOUTRO1 ENA=0V ENA=3V, PWM_IN=0V ENA=3V, IOUT=50mA ENA=3V, IOUT=100mA PWM_duty=100% Between GND: IOUTR01=IOUT (duty=20%) IOUT2 PWM_duty=20%, frequency=24kHz Between GND: IOUTRO2 IOUTR02=IOUT (duty=50%) IOUT2 PWM_duty=50% frequency=24kHz Between GND: Input current Spark killer Diode Reverse current Forward voltage (leak) IOUT=200mV, *Design guarantee IPMW_IN IENA VPWM_IN=2.8V, VENA=2.8V Conditions Ratings 0.12 0.23 0.15 Unit
Design target value measurement made.
Package Dimensions
unit (typ) 3353
Mounted specified board: glass epoxy, four-layers substrate
0.75
VIEW
SIDE VIEW
BOTTOM VIEW Exposed Die-Pad Connect (0.8)
Allowable Power Dissipation,
(0.8)
0.25
0.39
(0.75)
SIDE VIEW
0.85
ILB01818
0.25
(0.8)
Ambient Temperature,
SANYO VQFN8(2.0X2.0)
A0983-2/4
LB8688LF
Assignment
PWM_IN
VQFN8
view
Block Diagram
0.1F Logi circuit
ference voltage
PWM_IN
Constant voltage
Constant current Control amplifier
OUT1
control signal Thermal protection circuit
(Constant current calculation equation) IOUT=0.2÷RF obtain IOUT=100mA max, follows; RF=0.2÷(100mA) Cautions current value with resistor between described above. Insert capacitor between when ripple output supply voltages suppressed. (Reference value: 4700[pF] PWM_IN frequency 100[kHz])
Truth Table
Input pulse Output Analog constant current Standby Constant current Remarks
Note output means "Don't care." Note high impedance
A0983-3/4
LB8688LF
Timing Chart
PWM-IN
VOUT
IOUT
Input PWM-Output Current Reference Values
Input Duty-output current characteristics RF=2 (maximum current 100mA)
PWM_duty-output current characteristics RFG=2 (IOUT=100mA setting PWM-IN:100kHz
Output current IOUT[mA]
PWM_duty[%]
SANYO Semiconductor Co.,Ltd. assumes responsibility equipment failures that result from using products values that exceed, even momentarily, rated values (such maximum ratings, operating condition ranges, other parameters) listed products specifications SANYO Semiconductor Co.,Ltd. products described contained herein. SANYO Semiconductor Co.,Ltd. strives supply high-quality high-reliability products, however, semiconductor products fail malfunction with some probability. possible that these probabilistic failures malfunction could give rise accidents events that could endanger human lives, trouble that could give rise smoke fire, accidents that could cause damage other property. When designing equipment, adopt safety measures that these kinds accidents events cannot occur. Such measures include limited protective circuits error prevention circuits safe design, redundant design, structural design. event that SANYO Semiconductor Co.,Ltd. products described contained herein controlled under applicable local export control laws regulations, such products require export license from authorities concerned accordance with above law. part this publication reproduced transmitted form means, electronic mechanical, including photocopying recording, information storage retrieval system, otherwise, without prior written consent SANYO Semiconductor Co.,Ltd. information described contained herein subject change without notice product/technology improvement, etc. When designing equipment, refer "Delivery Specification" SANYO Semiconductor Co.,Ltd. product that intend use. Information (including circuit diagrams circuit parameters) herein example only; guaranteed volume production. Upon using technical information products described herein, neither warranty license shall granted with regard intellectual property rights other rights SANYO Semiconductor Co.,Ltd. third party. SANYO Semiconductor Co.,Ltd. shall liable claim suits with regard third party's intellectual property rights which resulted from technical information products mentioned above.
This catalog provides information January, 2008. Specifications information herein subject change without notice.
A0983-4/4

LB8688LF Monolithic Digital Lens Driver Cell Phone Cameras

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