|
|
Part: LB1643
Category:
Interface and Interconnect
Description: Forward/revers Motor Driver With Braking Function
Company: Sanyo Semiconductor Corporation
Datasheet: Download LB1643 datasheet File size : 97 kB
Request For quote: Find where to buy LB1643
Datasheet text preview:
Ordering number: EN 4528B
Monolithic Digital IC
LB1643
Forward/Reverse Motor Driver with Brake
Overview
The LB1643 is a forward/reverse motor driver IC. The direction and brake functions are controlled from a single input, and the output voltages can be set by resistors. Further, the output voltage has 3 modes, full, high-level and low-level voltage modes. The output voltage can be controlled from a single input and a microcontroller interface.
Package Dimensions
unit : mm
3043A-SIP10
[LB1643]
Features
. Single-input forward, reverse and brake functions . Output voltage can be set using resistors . Single-input full-drive, high-level drive and low-level drive e t un . sMlieccrocfontcrtoiollner interface . Built-in surge-current absorption components . Built-in reference voltage circuit . Built-in thermal protection circuit
Specifications
Absolute Maximum Ratings at Ta = 25 °C
Parameter Maximum supply voltage Input voltage Output current Allowable power dissipation Operating temperature Storage temperature Symbol VCC max VIN IOUT Pd max Topr Tstg VCC > VIN Conditions Ratings 18 0.3 to +6 ±1.6 1.2 25 to +75 55 to +125
SANYO : SIP10
Unit V V A W °C °C
Allowable Operating Ranges at Ta = 25 °C
Parameter Supply voltage ranges Forward-reverse direction prohibit time Symbol VCC1 VCC2 t off VCC1 ^ VCC2 Conditions Ratings 8.0 to 18 5 to 18 ^20 Unit V V µs
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
63098HA(II)/D2293TS B8-0434 No.4528-1/5
LB1643
Electrical Characteristics at Ta = 25 °C, VCC = 12 V
Parameter Input low-level voltage Input high-level voltage Input mid-level voltage Input impedance Current drain Output voltages Output leakage current Saturation voltages (upper) Saturation voltages (lower) Reference voltage Reference voltage load characteristics Control to output gain Thermal shutdown temperature TTSD Symbol VINL VINH VINM ZIN ICC VOUT1 VOUT2 IOL Vsat11 Vsat12 Vsat21 Vsat22 Vref Vref Iref Conditions min 0 4.2 2.0 typ max 1.0 6.0 3.0 10 5.4 5.4 1.0 2.2 2.3 0.5 0.65 6.8 0.1 2.4 Unit V V V k mA V V mA V V V V V V/mA Times °C
RL = 60 , VCH = 2.5 V, VIN1 = 2.5 V, VIN2 = 0 V RL = 60 , VCH = 2.5 V, VIN1 = 2.5 V, VIN2 = 5.0 V RL = VCC = 12 V, IOUT = 300 mA VCC = 12 V, IOUT = 500 mA VCC = 12 V, IOUT = 300 mA VCC = 12 V, IOUT = 500 mA Iref = 2.0 to 0 mA VOUT/VCH, VOUT/VCL VCH = 2.5 V, VCL = 2.5 V, RL = 60 See note.
4.4 4.4
6.0
75 5.5 4.95 4.95 0.01 1.9 1.9 0.25 0.4 6.35 0.05
1.5 150
1.9 180
Note: Design target value only (not measured).
Pin Assignment
Truth Table
Operation
IN1 H M L H M L H M L
IN2 H H H M M M L L L
OUT1 L L L OFF OFF OFF FULL 2VCH 2VCL
OUT2 FULL 2VCH 2VCL OFF OFF OFF LOW LOW LOW
Forward (reverse)
Brake
Reverse (forward)
Input levels are
.V .V .V
H M L
^ 4.2 V = 2.0 to 3.0 V % 1.0 V
Allowable power dissipation, Pd max mW
Input
Output voltage
Pd max Ta
Ambient temperature, Ta °C
When IN1 and IN2 are open, they take on a voltage of 2.5 V. Operation equivalent to LB1641.
No. 4528-2/5
LB1643
Internal Equivalent Circuit
Pre-driver
Logic circuit
Sample Application Circuit
Motor
Microcontroller ports
Usage Notes
1. 2. 3. 4. 5. 6. Use a microcontroller with CMOS output ports for hight-level, low-level and open-circuit conditions. It is recommended that R1, R2 and R3 total approximately 60 k. The input voltage for IN1 and IN2 should be 0 to 6 V to ensure the output voltage does not cause incorrect operation when a negative voltage is applied. Furthermore, IN1 and IN2 voltages should not be applied if the VCC supply is not applied. To avoid occurrences where both the upper and lower transistors are ON simultaneously, make sure IN1 or IN2 is open for a period of tens of ms before switching control to the opposite device. Connect a 20 µF or larger capacitor between VCC and GND. A large current of several hundred mA flows in the motor circuits when the motor is being driven. Accordingly, the output current line and the input circuit should be wired so that they do not have a common impedance.
Reference voltage circuit
Thermal protection circuit
PS No. 4528-3/5
Others parts begin by lb
LB-1 LB-2 LB-3 LB-4 LB-5 LB-6
|
|
|
