 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| Ordering number : EN7896C LB8652T Features Monolithic Digital IC Driver for Digital Still Cameras * Actuator driver for digital cameras embedded in one chip. (Not supported synchronous driving.) (1) Saturation output for AF - Stepping motor (2 phase, 1-2 phase excitation possible) (2) Constant current control output for SH * Quick charge and quick discharge circuitry allow the stabilization of response speeds. * Input port 1 allows shutter close control. * When shutter opening control, open-loop constant current control is possible. (3) Saturation output for AE - VCM or stepping motor can be used. (2 phase, 1-2 phase excitation possible) (4) ZOOM (lens barrel) - Constant voltage DC motor driver (Normal evolution/Reverse evolution/Brake) Or saturation output stepping motor (2 phase, 1-2 phase excitation possible) * Applications of various actuators possible. SH Application Example 1 Application Example 2 Application Example 3 VCM VCM VCM AE VCM VCM STM AF STM STM STM ZOOM DCM STM DCM * No standby current consumption (or zero). * 2 system power source (VB : for DC motor, VCC : others) * Low saturation output * Built-in thermal protection circuitry * Small, thin package Specifications Absolute Maximum Ratings at Ta = 25C Parameter Maximum Power Source Voltage Symbol VB max VCC max Maximum Applied Input Voltage Maximum Applied Output Voltage VIN max VOUT max VB VCC MD1 to 3, IN1 to 4 OUT1 to 8 Conditions Ratings 10.5 10.5 10.5 10.5 V V Unit V Continued on next page. Any and all SANYO Semiconductor products described or contained herein do not have specifications that can handle applications that require extremely high levels of reliability, such as life-support systems, aircraft's control systems, or other applications whose failure can be reasonably expected to result in serious physical and/or material damage. Consult with your SANYO Semiconductor representative nearest you before using any SANYO Semiconductor products described or contained herein in such applications. SANYO Semiconductor 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 products described or contained herein. D2006 SY IM B8-8570 No.7896-1/8 LB8652T Continued from preceding page. Parameter Maximum Output Current 1 Maximum Output Current 2 Maximum Output Current 3 Allowable Power Dissipation Operating Temperature Storage Temperature Symbol IO max1 IO max2 IO max3 Pd max1 Topr1 Tstg OUT1 OUT2, 3, OUT5 to 7 OUT4, OUT8 Substrate mounting (*1) Conditions Ratings 400 600 800 800 -20 to +80 -55 to +150 Unit mA mA mA mW C C (*1) Standard mounting substrate : 76.1mmx114.3mmx1.6mm glass epoxy resin Allowable Operating Range at Ta = 25C Parameter Source Voltage Range VB VCC Input Pin High Level Voltage Input Pin Low Level Voltage Constant Voltage Setting Input Range VINH VINL VOC MD1 to 3, IN1 to 4 MD1 to 3, IN1 to 4 VC Symbol (*2) Conditions Ratings 2.0 to 10 2.0 to 10 1.8 to 10 -0.3 to 0.4 0.8 to 2.0 V V V Unit V (*2) No restriction on priority among applied voltages of VB (Battery power source), VCC (step-up power source) and VIN (CPU power source). Example1 : VB = 3.3V, VCC = 4.0V, VIN = 5.0V Example2 : VB = 3.3V, VIN = 5.0V Electrical Characteristics at Ta = 25C, VB = VCC = 3V, Rf = 1 Parameter Standby Current Consumption VCC Operating Current Consumption Symbol ICC0 ICC1 ICC2 ICC3 ICC4 VB Operating Current Consumption Reference Voltage Reference Voltage start-up time Input Pin Current Overheat Protection Operation Temperature [Stepping motor driver for AF] (OUT2 to 3, OUT6 to 7) Output Saturation Voltage 1 [AE driver] (OUT5 to 6) Output Saturation Voltage 2 [SH driver] (OUT1 to 2) Output Constant Current 1 Output Constant Current 2 Output Saturation Voltage 3 IO1 IO2 VSAT3 OUT2OUT1 VCC = 3.0 to 3.7V, Rf = 1 OUT1OUT2 VCC = 3.3V RILM = 1.6k OUT2OUT1 VCC = 3.3V, IO = 0.2A (upper and lower) [DC motor driver for ZOOM] (OUT4 to 8) Output Constant Voltage Output Saturation Voltage 4 Output Saturation Voltage 5 VO VSAT4 VSAT5 VB = 3.0 to 3.7V, VC = 1V VB = 3.3V, IO = 0.3A (upper and lower) VB = 3.3V, IO = 0.3A (upper) 2.38 0.2 0.1 2.5 0.3 0.18 2.62 0.45 0.25 V V V 194 130 0.15 206 160 0.25 218 190 0.40 V mA VSAT2 VCC = 3.3V, IO = 0.2A (upper and lower) 0.15 0.25 0.40 V VSAT1 VCC = 3.3V, IO = 0.2A (upper and lower) 0.15 0.25 0.40 V IB Vref Tr IIN THD Conditions min VB = VCC = 8.0V MD1 to 3, IN1 to 4 = L AF mode IN1, 3 = H (2 phase excitation) AF mode IN3 = H (1 phase excitation) SH mode IN1 = L SH mode IN1 = H RILM = 2k DC-ZOOM mode IN3 = H Iref = -1mA Design guaranteed VIN = 5.0V Design guaranteed (*3) 160 1.74 Ratings typ 0.1 24 14 42 18 7 1.8 0.5 70 180 max 5.0 32 21 54 24 15 1.86 2.0 90 200 mA V s A C mA A Unit (*3) For the characteristic within the guaranteed temperature range, shipping check is performed at Ta = 25C. For all temperature range, it is design guaranteed. No.7896-2/8 LB8652T Package Dimensions unit : mm (typ) 3260A 6.5 24 13 1.0 Pd max - Ta Mounted on a specified board: 76.1mmx114.3mmx1.6mm glass epoxy Allowable Power Dissipation, Pd max - W 0.8 4.4 6.4 1 0.5 (0.5) 0.22 12 0.5 0.6 0.15 0.4 0.45 (1.0) 1.2max 0.2 0.08 SANYO : TSSOP24(225mil) 0 -20 0 20 40 60 80 100 ILB01754 Ambient Temperature, Ta -C Pin Assignment VCC ILM MD1 MD2 MD3 IN1 IN2 IN3 IN4 1 2 3 4 5 6 7 8 9 24 OUT1 23 GND 22 RFG 21 OUT2 20 OUT3 19 OUT5 18 OUT6 17 OUT7 16 OUT4 15 OUT8 14 GND 13 VB Top view LB8652T VREF 10 FC 11 VC 12 (Note) Both 2 pins are connected to GND pin. No.7896-3/8 LB8652T True Value Table Input MD1 L MD2 L MD3 L IN1 L L H L L H L H H H IN2 L * * L H L H L L H H * H L L * * * L L H H H L H * * * * L H L H L L H H L L H H L H H L H L H L L H H L H H H L H * * * * * * L H L H * * L H L H L L H H L H L H L H L H IN3 L * * IN4 L * * OUT1 L H L H OUT2 H L L H H L L H H H L OUT3 L H Output OUT4 H L L H L H L H H L Ignore ZOOM (STEP2) H L H L OUT5 OUT6 OUT7 OUT8 H L H AF (STEP1) ZOOM (DC) AE (VCM) or (STEP3) Standby (0A) SH (VCM) Mode L L H ( * ) : Don't care. ( - ) : Output OFF (H) : Constant voltage output is 2.5 time the VC pin applied voltage. (L) : Constant current output is (IC pin applied voltage/RFG resistor current). Note : When the current flows from OUT1 to OUT2, easy constant current output function is ON. The output current is controlled by the resistance value connected between the ILM pin and GND. No.7896-4/8 LB8652T Block Diagram SH/VCM VB Vref VCC OUT1 OUT2 Reference voltage heat protection circuit VC VCC OUT3 MD1 MD2 MD3 CPU IN1 IN2 IN3 IN4 GND OUT4 Zoom/DC VB Logic unit VC RFG VC Constant current control Quick charge circuitry for SH Quick discharge circuitry for SH RFG VCC Constant voltage output (brake) OUT7 AF/ST OUT8 M FC ILM OUT5 OUT6 AE/VCM GND Application Circuit Diagram [Application Example 1] AF/STM ZOOM/DCM M SH/VCM AE/VCM OUT1 VCC OUT2 OUT3 OUT4 OUT5 OUT6 OUT7 OUT8 VB VC 400mA Constant current generation circuit ILM RFG 400mA 400mA 700mA 400mA 400mA 400mA 700mA GND GND Internal reference No.7896-5/8 LB8652T [Application Example 2] AF/STM ZOOM/STM SH/VCM AE/VCM OUT1 OUT2 OUT3 OUT4 OUT5 OUT6 OUT7 OUT8 VCC VB VCC VC 400mA Constant current generation circuit ILM RFG 400mA 400mA 700mA 400mA 400mA 400mA 700mA GND GND Internal reference [Application Example 3] AF/STM AE/STM SH/VCM ZOOM/DCM M OUT1 VCC OUT2 OUT3 OUT4 OUT5 OUT6 OUT7 OUT8 VB VC 400mA Constant current generation circuit ILM RFG 400mA 400mA 700mA 400mA 400mA 400mA GND GND Internal reference No.7896-6/8 LB8652T Points to Take into Consideration When Designing (1) For shutter control Constant current setting (RFG, OUT1, OUT2) The constant current when flowing the current from OUT2 to OUT1 can be specified by a resistor connected between RFG and GND. The reference voltage is generated in the IC and it is approximately 0.21V. The voltage is controlled in such a way so that the voltage generated at the resistor used for current detection connected between RFG and GND would be equal to this voltage. The formula for calculating the output current is as given below. In addition, as a fundamental setting, it is designed so that the approx. 200mA would flow through the coil when RFG resistor is connected with 1. (Current flows from OUT2 to OUT1) = 0.21V/(Resistance between RFG and GND+0.05) - (Drive current of output Tr) This 0.05 is for a common impedance of the output Tr emitter which drives constant current in the RFG pin and the sensing wiring for the constant current control amplifier. Also, the drive current of output Tr is equal to 1/hfe (a 80th to 200th part approx.) of the coil current. The constant current flowed from OUT2 to OUT1 is more accurate than that flowed from OUT1 to OUT2. Therefore make sure to use this method for shutter closing drive. (2) For shutter control Open-loop constant current control setting (ILM, OUT1, OUT2) In order to prevent the high-current flowing when shutter opening, the output current control circuit is implemented for current flowing from OUT1 to OUT2. The constant current when flowing the current from OUT1 to OUT2 can be specified by a resistor connected between ILM and GND. The formula for calculating the output current is as given below. (Current flows from OUT1 to OUT2) = 1.36V/(Resistance between ILM and GND) x200 approx. Due to open-loop control by which feedback signals are not sent, the accuracy of constant current is relatively inferior. It is used for shutter opening drive. (3) Phase compensation capacitor (FC) See and check the capacitor value for FC pin between 0.0015 to 0.033F. Choose a capacitance value which does not cause oscillation problems for output. In particular, when a coil with large inductance is used, it is necessary to choose a sufficiently large capacitance. (4) Constant voltage control Oscillation-stopping capacitor (OUT4, OUT8) When controlling the constant voltages, it is necessary to place capacitors between the OUT pins to stop oscillation. See and check the capacitance value between 0.01F to 0.1F. Choose a capacitance value which does not cause oscillation problems for output. When driving at saturation, there is no need for such oscillation-stopping capacitors. (5) GND wiring and power line capacitors : (GNDx2, VCC, VB) Connect GND (2 places) near the IC, and place the capacitors as close as possible to each of the power pins. No.7896-7/8 LB8652T Specifications of any and all SANYO Semiconductor 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. SANYO Semiconductor Co., Ltd. strives to supply high-quality high-reliability products. However, any and all semiconductor products fail with some probability. It is possible that these probabilistic failures could give rise to accidents or events that could endanger human lives, that could give rise to smoke or fire, or 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 products (including technical data,services) described or contained herein are controlled under any of applicable local export control laws and regulations, such products must not be exported without obtaining 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 permission 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 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. SANYO Semiconductor believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties. This catalog provides information as of December, 2006. Specifications and information herein are subject to change without notice. PS No.7896-8/8 |
Price & Availability of LB8652T
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |