2004.2.4 Ordering number : ENN7714 SANYO Semiconductors DATA SHEET Monolithic Digital IC LB1948M Low saturation voltage drive forward/reverse 12 V motor driver Overview The LB1948M is a two-channel low saturation voltage forward/reverse motor driver IC. It is optimal for motor drive in 12V system products and can drive either two DC motors, one DC motor using parallel connection, or a two-phase bipolar stepping motor with 1-2 phase excitation mode drive. Applications 12V low saturation voltage forward/reverse motor drive Features • • • • • • • • Supports 12V power supply systems Low saturation voltage: VO (sat)=0.5V (typical) at IO=400mA Zero current drawn in standby mode Braking function Supports parallel connection: IOmax=1.6A, VO (sat)=0.6V (typical) at IO= 800mA Built-in spark killer diode Thermal shutdown circuit Miniature package: MFP-10S (6.5 × 5.1mm) Specifications Absolute Maximum Ratings at Ta=25°C Parameter Maximum supply voltage Symbol Conditions Ratings Unit VCC max –0.3 to +20 V VOUT –0.3 to +20 V Input voltage VIN –0.3 to +18 Ground pin source current IGND Output voltage Allowable power dissipation Per channel 800 V mA Pd max1 Independent IC 350 mW Pd max2 Mounted on a circuit board* 870 mW Operating temperature Topr –20 to +85 °C Storage temperature Tstg –40 to +150 °C *: On the stipulated circuit board (114.3 × 76.1 × 1.6tmm, glass epoxy) Any and all SANYO 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 representative nearest you before using any SANYO products described or contained herein in such applications. SANYO 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 products described or contained herein. SANYO Electric Co.,Ltd. Semiconductor Company TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN 31004TN (OT) No. 7714-1/6 LB1948M Allowable Operating Ranges at Ta=25°C Parameter Symbol Conditions Ratings Unit Supply voltage VCC 2.5 to 16 Input high-level voltage VIH 1.8 to 10 V Input low-level voltage VIL –0.3 to +0.7 V V Electrical Characteristics at Ta=25°C, VCC=12V Parameter Symbol Current drain Output saturation voltage Ratings Conditions min typ Unit max ICC0 IN1, 2, 3, 4=0V (Standby mode) 0.1 10 µA ICC1 *1 (Forward or reverse mode) 15 21 mA ICC2 *2 (Brake mode) mA 30 40 VO (sat) 1 IOUT=200mA (High Side and Low Side) — 0.25 0.35 VO (sat) 2 IOUT=400mA (High Side and Low Side) — 0.50 0.75 V 85 110 µA 30 µA 1.7 V Input current IIN VIN=5V V [Spark Killer Diode] Reverse current IS (leak) Forward voltage VSF IOUT=400mA *1: IN1/IN2/IN3/IN4=H/L/L/L or L/H/L/L or L/L/H/L or L/L/L/H *2: IN1/IN2/IN3/IN4=H/H/L/L or L/L/H/H Package Dimensions Pin Assignment unit : mm 3086B 0.63 5.0 10 4.4 0.15 0.1 (1.5) 1.7max 5 1 1.0 1 10 OUT1 IN1 2 9 OUT2 IN2 3 8 OUT3 IN3 4 7 OUT4 IN4 5 6 GND LB1948M (0.5) Top view ILB01591 SANYO : MFP10S (225 mil) 1.0 Allowable power dissipation, Pd max—W 0.35 VCC 6.4 6 Pd max — Ta Mounted on a 114.3 × 76.1 × 1.6tmm glass epoxy circuit board 0.87 0.8 0.6 0.45 0.4 0.35 Independent IC 0.2 0 –20 0.18 0 20 40 60 Ambient temperature, Ta—°C 80 100 ILB01585 No.7714-2/6 LB1948M Truth Table Input Output Notes IN1 IN2 IN3 IN4 OUT1 OUT2 OUT3 OUT4 L L L L OFF OFF OFF OFF L L OFF OFF H L H L Forward L H L H Reverse H H L L L Standby mode 1CH Standby mode Brake L OFF OFF 2CH Standby mode H L H L Forward L H L H Reverse H H L L Brake Block Diagram 10µF VCC 60kΩ OUT1 80kΩ IN1 M OUT2 80kΩ 60kΩ 80kΩ IN4 Thermal shutdown circuit 60kΩ IN3 Control block 60kΩ 80kΩ IN2 OUT3 M OUT4 GND No.7714-3/6 LB1948M Design Documentation • Voltage magnitude relationship There are no restrictions on the magnitude relationships between the voltages applied to VCC and IN1 to IN4. • Parallel connection The LB1948M can be used as a single-channel H-bridge power supply by connecting IN1 to IN3, IN2 to IN4, OUT1 to OUT3, and OUT2 to OUT4 as shown in the figure. (IOmax=1.6A, VO(sat)=0.6V (typical) at IO=800mA) 1 VCC OUT1 10 M 2 IN1 OUT2 9 3 IN2 OUT3 8 4 IN3 OUT4 7 5 IN4 GND 6 • Observe the following points when designing the printed circuit board pattern layout. — Make the VCC and ground lines as wide and as short as possible to lower the wiring inductance. — Insert bypass capacitors between VCC and ground mounted as close as possible to the IC. — Resistors of about 10KΩ must be inserted between the CPU output ports and the IN1 to IN4 pins if the microcontroller and the LB1948M are mounted on different printed circuit boards and the ground potentials differ significantly. No.7714-4/6 LB1948M ICC — VCC 40 IIN — VIN 400 VCC=12V (=IN1 / IN2 or IN3 / IN4) H/H 30 Input current, IIN — µA Current drain, ICC — mA VIN=5V 20 H / L, L / H 10 L/L 0 0 5 10 15 o4 200 1t IN 100 0 20 Supply voltage, VCC — V 0 5 10 15 Input voltage, VIN — V ILB01586 VO(sat) — IO 0.6 300 ICC — Ta 40 VCC=12V 0.5 0.4 Current drain, ICC — mA Output saturation voltage, VO(sat) — V VCC=12V de 0.3 nd w Lo Si a de h g Hi 0.2 Si (IN1 30 / 2) H /H 20 H / L, L / H 10 0.1 0 0 100 200 300 400 500 Output current, IO — mA 0.7 Output saturation voltage, VO(sat) — V 20 ILB01587 0.6 600 ILB01588 0 --40 --20 0 20 40 60 80 100 Ambient temperature, Ta — °C 120 140 ILB01589 VO(sat) -- Ta VCC=12V High Side and Low Side mA 00 I O=4 0.5 0.4 A 0m I O=30 0.3 I O=200mA 0.2 IO=100mA 0.1 0 --40 --20 0 20 40 60 80 100 Ambient temperature, Ta — °C 120 140 ILB01590 No.7714-5/6 LB1948M Specifications of any and all SANYO 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 Electric 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 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 expor ted without obtaining the expor t license from the author ities 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 Electric 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 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 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 March, 2004. Specifications and information herein are subject to change without notice. PS No.7714-6/6