LB1838JM ONSEMI | Alldatasheet

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Technical content

Features

  • Low voltage operation (2.5V min)
  • Low saturation voltage (upper transistor + lower transistor residual voltage ; 0.40V typ at 400mA).
  • Through-current prevention circuit built in
  • Separate logic power supply and motor power supply
  • Spark killer diodes built in
  • Thermal shutdown circuit built in
  • Compact package (14-pin MFP) Specifications Absolute Maximum Ratings at Ta = 25°C Parameter Symbol Conditions Ratings Unit VCC max -0.3 to +10.5 V Maximum supply voltage VS max -0.3 to +10.5 V Output supply voltage V OUT V S to VSF V Input supply voltage V IN -0.3 to +10 V GND pin flow-out current IGND Per channel 1.0 A Pd max1 Independent IC 550 mW Allowable power dissipation Pd max2 * Mounted on a board. 800 mW Operating temperature Topr -40 to +85 °C Storage temperature Tstg -55 to +150 °C * Mounted on a substrate : 30×30×1.5mm3, glass epoxy board. Monolithic Digital IC Low-Saturation Bidirectional Motor Driver for Low-Voltage Drive Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Oper ating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability.

No.A0927-2/5 Allowable Operating Ranges at Ta = 25°C Parameter Symbol Conditions Ratings Unit VCC 2.5 to 9.0 V Supply voltage VS 1.8 to 9.0 V Input high-level voltage V IH 1.8 to 9.0 V Input low-level voltage V IL -0.3 to +0.7 V Electrical Characteristics at Ta = 25°C, VCC = 3V Ratings Parameter Symbol Conditions min typ max Unit ICC0 EMA1, 2 = 0V, V IN1 = 3V or 0V 0.1 10 μA Supply current ICC1 EMA1 = 3V, V IN1 = 3V or 0V 12 18 mA VOUT1 EMA1 = 3V, V IN1 = 3V or 0V, IOUT = 200mA 0.20 0.28 V Output saturation voltage VOUT2 EMA1 = 3V, V IN1 = 3V or 0V, IOUT = 400mA 0.40 0.60 V IIN V CC = 6V, VIN = 6V 200 μA Input current IENA V CC = 6V, ENA = 6V 200 μA Output sustaining voltage V O (SUS) I OUT = 400mA 9 V Spark killer diode Reverse current I S (leak) V CC1, VS = 7V 30 μA Forward voltage V SF I OUT = 400mA 1.7 V Package Dimensions unit : mm (typ) 3111A Pin Assignment Note) Ground both GND pins. SANYO : MFP14S(225mil) 8.0 0.15 (1.0) 1.0 0.35 1.7MAX (1.5)0.1 4.4 0.63 6.4 GND 1VCC ENA2 2ENA1 OUT3 3OUT1 VS2 4VS1 OUT4 5OUT2

9 IN2

8 Vcont

Ambient temperature, Ta – °C Allowable power dissipation, Pd max – mW0 800 600 550 400 200 1000 – 40 – 20 8085 602025 4001 0 0 Independent IC Mounted on a board : 30.0×30.0×1.5mm3 glass epoxy Mounted on a board

No.A0927-3/5 Block Diagram * : As long as the voltages applied to VCC, VS1, VS2, ENA1, ENA2, IN1 and IN2 are within the limits set by the absolute maximum ratings, there are no restrictions on the relationship of each voltage level in comparison with the others (regarding which is higher or lower). (ex. VCC = 3V, VS1, 2 = 2V, ENA = IN = 5V) Truth Table IN1/2 ENA1/2 OUT1/3 OUT2/4 Mode L H H L Forward H H L H Reverse L L OFF OFF Standby H L OFF OFF Standby IN1 OUT1 Stepping Motor OUT2 VS1 10μFVS2 OUT3 OUT4 GND Vcont GND VCC ENA1 IN2 ENA2 60kΩ 80kΩ 60kΩ 80kΩ 60kΩ 80kΩ 60kΩ 80kΩ ControlControl Thermal shutdown

No.A0927-4/5 Vcont pin I D = VZ r (= constant) As shown in the above diagram, the Vcont pin outputs the voltage of the band gap Zener VZ + VF (=1.93V). In normal use, this pin is left open. The drive current ID is varied by the Vcont voltage. However, because the band gap Zener is shared, it functions as a bridge. M OUT 300Ω OUTID IN VCC Vcont VZ VS 0.2 0.4 0.6 0.8 1.0 120 160 200 0 200 100 300 400 500 5 46 7 8 923600 Output current, IO –m A Output saturation voltage, VO (sat) – V 0.1 0.3 0.2 0.4 0.5 0.6 – 40 – 20 0 20 40 60 80 100 120 1 2 3 4 5 6 7 8 9 10 11 140 Ambient temperature, Ta – °C Output saturation voltage, VO (sat) – V 01 2 Supply voltage, VS –V Current drain, IS –m A 01 1 0 Input voltage, VIN –V Input current, IIN – μA VO(sat) – IO IIN – VIN VO(sat) – Ta I S – VS VCC = VS = 3V VCC = VS = IN = 3V VO(sat) = total value VCC = VIN =3V For 1 channel IO = 400mA IO = 200mA ENA IN1 (ENA = 3V)

PS No.A0927-5/5 ICC – VCC 01 234 56 8 7 9 10 11 12 Supply voltage, VCC –V Current drain, ICC –m A VCC = VIN =3V For 1 channel Reverse Forward ON Semiconductor and the ON logo are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of SCILLC’s product/patent coverage may be accessed at warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequentia l or incidental damages. “Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s techn ical experts. SCILLC does not convey any license under its patent rights nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC productsfor any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates, anddistributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture oft h e part. SCILLC is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.