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Ordering number : EN7895B
LB8650T
Overview
Monolithic Digital IC
Driver for Digital Still Cameras
LB8650T is a driver for digital still cameras.
Features
* Two direct nickel hydride batteries for digital cameras embedded in one chip. (1) Constant voltage control for AF - Stepping motor driver. 1-2 phase excitation, 2 phase excitation possible. (2) Constant current control for SH - Solenoid coil driver Built-in start-up correction circuit. * No standby current consumption (or zero). * Low voltage driving possible (1.9V to). * Low saturation output. * Built-in thermal protection circuitry.
Specifications
Absolute Maximum Ratings at Ta = 25C
Parameter Maximum power source voltage Maximum input applied voltage Maximum output applied voltage Maximum output current Allowable power dissipation Operating temperature Storage temperature Symbol VB max VIN max VOUT max IO max Pd max Topr Tstg per CH Mounted on a specified board (*1) Conditions VB power source Ratings 10.5 10.5 10.5 600 800 -10 to +80 -55 to +150 Unit V V V mA mW C C
(*1) Mounted on a specified board: 114.3mmx76.1mmx1.6mm, glass epoxy resin. Allowable Operating Range at Ta = 25C
Parameter Power source voltage range Input pin high level voltage Input pin low level voltage Constant voltage setting input range VB VINH VINL VOC VOC (*2) Symbol Conditions Ratings 1.9 to 10 1.8 to 10 -0.3 to 0.4 0.1 to VB Unit V V V V
(*2) No hierarchical relationship between VB and VIN.
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.
D2706 TI IM B8-6047 No.7895-1/6
LB8650T
Electrical Characteristics at Ta = 25C, VB = VCC = 2.4V, Rf = 0.5
Parameter Standby current consumption Operating current consumption ICC1 ICC2 IB1 Reference voltage Control pin iInput current Overheat protection operation temperature Constant current stepping motor driver for AF/STP (OUT1, 2, 3, 4, 5P) Output constant voltage Output saturation voltage VO1 VSAT1 VSAT2 SH driver (OUT5N) Output constant current IO1 IO2 Output saturation voltage 2 VSAT2 IC1 = 0.20V, Rf = 1 IC1 = 0.20V, Rf = 1, HOLD mode IO = 0.25A (lower) 178 113 190 126 0.15 202 140 0.22 V mA VC1 = 0.4V IO = 0.2A (upper) IO = 0.2A (lower) 1.57 1.66 0.2 0.15 1.74 0.3 0.22 V V Vref IIN THD IN1 = IN3 = 2V, VC1 = 0.4V IN4 = IN5 = 2V, ICI = 0.2V IN1 = IN3 = 2V, VC1 = 0.4V Iref = -1mA VIN = 5.0V Design guaranteed (*3) 150 875 Symbol ICC0 VB = VCC = 4.0V Conditions min Ratings typ 0.1 3.5 3.5 5.5 905 60 180 max 5.0 6.0 6.0 9.0 935 90 210 mV 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, these are design guarantee and are not tested.
Package Dimensions
unit : mm (typ) 3260A
6.5 24 13
Pin Assignment
VC1 VC2
0.5
1 2 3 4 5 6 7 8 9
24 VCC 23 VB 22 P-GND 21 OUT1 20 OUT2 19 OUT3 18 OUT4 17 P-GND 16 OUT5N 15 RFG 14 OUT5P 13 VB
4.4
6.4
FC ICI VREF S-GND
1 0.5 (0.5) 0.22
12
0.15
(1.0)
1.2max
LB8650T
0.08
SANYO : TSSOP24(225mil)
IN1 IN2 IN3
IN4 10 IN5 11 NC 12
Top view
ILB01596
(Note) P-GND and VB, both 2-pins are connected.
No.7895-2/6
LB8650T
900
Pd max - Ta
Mounted on a specified board: 114.3mmx76.1mmx1.6mm, glass epoxy resin
Allowable power dissipation, Pd max - mW
800 700 600 500
448 400 300 200 100 0 --20
0
20
40
60
80
100 ILB01605
Ambient temperature, Ta - C
Truth Table (for AF/SH)
Input IN1 L H H L L L L L H H IN2 L L L L H H H L L H IN3 L L H H H L L L L * L L * H L H L H IN4 L L L L L L H H H * L H L H L H L IN5 L OUT1 H H L L L H H OUT2 L L H H H L H H L H L H H L L 0.6V Hold 0.9V SH L OUT3 H H H L L L OUT4 L L L H H H Brake SH-ready 0.9V L AF or AE Output OUT5P OUT5N Vref ICI Standby Mode
* : Don't care. - : Output OFF. H : Constant voltage control with the constant voltage output (VC pin input voltage) 4 times. OUT1, 2, 3, and 4 outputs are set by VC1 input. OUT5P output is set by VC2 input. It is necessary to place the oscillation-stopping capacitor (0.01F) between the output pins. L : The formula for calculating the constant current output setting is as given below. IRFG = (ICI pin input voltage) / (RFG resistance value+0.05) 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.
No.7895-3/6
LB8650T
Application Example
(1) Solenoid (constant current drive), stepping motor (constant voltage drive)
SH/SOL OUT5N VB
VC1 Vref R1 ICI R2 C1 RFG FC 0.01 to 0.1F Rf VB P-GND OUT4 0.01F OUT3
OUT1
OUT2
AF/STP
ILB01606
Timing chart for solenoid SH
ICI
Rise correction
VB is high. (Without C1) VB is low. (Without C1)
SOL/IO
Rise correction coil current
SH preparing
SH closing HOLD SH closing operation
ILB01607
(1) ICI pin voltage is set to 0V in shutter ready mode of *LLLH input. (2) At *LLHH input, solenoid is driven by constant current control. The ICI pin input voltage is set with the decay time constant to be larger than the coil decay time constant by using the external CR and the rise correction occurs with respect to the coil wave. By doing this, stable shutter operation can be carried out with respect to the power source variations. (Note) ICI pin rise compensation is made without C1 and the rise waveform of coil current is made at decrease of VB power. C1 is set to the time constant lower than this waveform. (3) At *HLHH input, solenoid current is controlled by 2/3, and it becomes HOLD state. * Constant current value setting: ICI voltage/Rf (Note1) Consider the FC capacitor between 0.01 to 0.1F to set the capacitance value that ensure no oscillation problem at transfer to the HOLD mode. In particular, the solenoid with high inductance should have an allowance for capacitance.
No.7895-4/6
LB8650T
(2) Solenoid (constant voltage drive), stepping motor (constant voltage drive)
VB
VC1 VC2 OUT5P 0.01 to 0.1F SH/SOL P-GND OUT4 0.01F OUT3
VB
OUT1
OUT2
AF/STP
ILB01608
The shutter mode is ON at *LLLH input. The solenoid is driven by constant voltage at LHLH. The constant voltage output is 4 times the VC2 pin input voltage. The voltage is controlled by 2/3 in HOLD mode. OUT1, 2, 3, and 4 outputs are set by VC1 input, and it becomes 4 times the constant voltage output.
Internal equivalent circuit diagram
SH/VCM
VCC VCC VC2 IN1
OUT5P
OUT5N
VB
VB
VC1 OUT3
IN2 CPU IN3 IN4 IN5 Logic unit Constant current control Quick charge circuitry RFG S-GND Quick discharge circuitry OUT1 Constant voltage output VB OUT4
RFG
OUT2
VC2
VC1
Vref
ICI
FC
P-GND
Solenoid SH ; 0.01 to 0.1F Voice coil SH ; 0.01 to 0.1F
ILB01609
No.7895-5/6
LB8650T
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.7895-6/6

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