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Ordering number : EN4179A
Monolithic Digital IC
LB1832V
Low-Saturation 1.5-Channel 3 V Drive Bidirectional Driver
Overview
The LB1832V is a bidirectional driver IC that includes an on-chip low-voltage low-saturation 1.5-channel bridge and is provided in a miniature package. It is therefore optimal for cameras that use 3 V lithium batteries. This IC allows direct drive from the control microprocessor and supports control of standby, forward, reverse, and braking operations for two motors, i.e. the film take-up and lens drive motors, from three inputs.
Package Dimensions
unit: mm 3175A-SSOP24
[LB1832V]
Features
* Supports low-voltage drive. -- When the same power supply is used for VCC and VS: VCC = VS = 1.6 V min. -- When different power supplies are used for VCC and VS: VS = 1.0 V min, VCC = 2.5 V min. * Low saturation voltage (Upper side transistor plus lower side transistor remaining voltage: 0.6 V (typ) at 1 A) * Zero current drain in standby mode * 1.5-channel bidirectional driver that can be directly driven from the control microprocessor * Separate logic and motor power supply connections * Brake function * Built-in spark killer diode * Miniature package (SSOP-24)
SANYO: SSOP24
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-0005 JAPAN
41596HA (OT) No. 4179-1/7
LB1832V
Specifications
Absolute Maximum Ratings at Ta = 25C
Parameter Maximum supply voltage Output applied voltage Input applied voltage GND pin current Allowable power dissipation Pd max2 Operating temperature Storage temperature Topr Tstg Symbol VCC max VS max VOUT VIN IGND Pd max1 Independent IC Mounted on the specified printed circuit board (40 x 30 x 1.5 mm3 glass epoxy) Conditions Ratings -0.3 to +8.0 -0.3 to +8.0 -0.3 to VS + VSF -0.3 to +0.8 2.0 550 1000 -20 to +75 -40 to +150 Unit V V V V A mW mW C C
Allowable Operating Ranges at Ta = 25C
Parameter Symbol VE Supply voltage VCC VS Input high-level voltage Input low-level voltage VIH VIL Conditions VCC = VS; Using the same power supply Using separate power supplies for VCC and VS Ratings 1.6 to 7.0 2.5 to 7.0 1.0 to 7.0 1.6 to 7.0 -0.3 to +0.4 Unit V V V V V
Electrical Characteristics at Ta = 25C, VCC = VS = 3 V
Parameter Symbol ICC0 Current drain ICC1 IS1 IS2 Output saturation voltage (upper + lower) Variation in output applied voltage Sustainable output voltage Input current [Spark killer diode] Reverse current Forward voltage IS (leak) VSF VCC, VS = 7 V IOUT = 1 A 10 1.7 A V VO (SUS) IIN VO (sat)1 VO (sat)2 Standby: ICC + IS ICC Forward/reverse: IS Brake: IS IOUT = 500 mA (VCC = VS = 2 V) IOUT = 1 A (VCC = VS = 2.2 V) IOUT = 500 mA IOUT = 1 A VIN = 5 V, VCC = 7 V -20 9 100 Conditions min typ 0.1 3.5 65 60 0.3 0.6 0 max 3 5 85 80 0.4 0.8 +20 Unit A mA mA mA V V % V A
No. 4179-2/7
LB1832V Pin Assignment
Note: 1. VS (motor power supply pins) Connect either pins 1 and 2 or pins 11 and 12. The wiring resistance falls if all four are connected. 2. P-GND (motor power supply ground pins) Connect all four of these pins 3. S-GND (Control power supply ground pin) Connect to the microprocessor ground.
Block Diagram
Note: The two P-GND pins must be connected to a ground as close as possible to the IC.
Truth Table
Input IN0 L H L L L H H H IN1 L L H L H H L H IN2 L L L H H L H H H L L L H L L H L H L L ch2 ch1 OUT1 Output OUT21 OUT3 Standby Forward Reverse Brake Forward Reverse Brake Mode
Note: Blanks are off.
No. 4179-3/7
LB1832V Application Circuit Examples When separate power supplies are used for VCC and VS
When the same power supply is used for VCC and VS
Note: There are no limitations on the magnitude relationships between VCC, VS, and VIN.
No. 4179-4/7
LB1832V
No. 4179-5/7
LB1832V Low-Voltage Low-Saturation Bidirectional Motor Driver Product Line
No. 4179-6/7
LB1832V
s No products described or contained herein are intended for use in surgical implants, life-support systems, aerospace equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment and the like, the failure of which may directly or indirectly cause injury, death or property loss. s Anyone purchasing any products described or contained herein for an above-mentioned use shall: Accept full responsibility and indemnify and defend SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors and all their officers and employees, jointly and severally, against any and all claims and litigation and all damages, cost and expenses associated with such use: Not impose any responsibility for any fault or negligence which may be cited in any such claim or litigation on SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors or any of their officers and employees jointly or severally. s Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for volume production. SANYO 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 April, 1996. Specifications and information herein are subject to change without notice. PS No. 4179-7/7

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