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LB1848MC-AH 数据表(PDF) 1 Page - ON Semiconductor

部件名 LB1848MC-AH
功能描述  Low-Voltage/Low Saturation Voltage Type Bidirectional Motor Driver
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制造商  ONSEMI [ON Semiconductor]
网页  http://www.onsemi.com
标志 ONSEMI - ON Semiconductor

LB1848MC-AH 数据表(HTML) 1 Page - ON Semiconductor

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53012 SY 20120522-S00002/41812 SY/32112 SY 20120229-S00010 No.A2036-1/6
http://onsemi.com
Semiconductor Components Industries, LLC, 2013
June, 2013
LB1848MC
Overview
The LB1848MC is 2-channel low-voltage, low saturation voltage type bidirectional motor driver IC that is optimal for
use as 2-phase stepping motor drivers in printers, cameras and other portable equipment. The output circuits are of the
bipolar type, with PNP transistors in the upper side and NPN transistors in the lower side, and they achieve low
saturation output and low power characteristics despite being provided in a miniature package.
The LB1848MC products can directly control a motor from signals from a microcontroller. The LB1848MC is optimal
for 2-phase excitation drive for 2-phase stepping motors using 3-input logic (ENA, IN1 and IN2).
Another point is that these IC include built-in thermal shutdown circuits so that IC scorching or burning is prevented in
advance even if the IC output is shorted.
Functions
• Optimal for 2-phase excitation drive for 2-phase stepping motors
• Standby current: Zero
• Low saturation voltage. VO (sat) = 0.55V typical at IO = 400mA
• Thermal shutdown circuit
• Through-current prevention circuit
• No limitations on the magnitude relationship between the power supply voltage (VCC) and the input voltage (VIN)
• “Soft off” function that reduces power supply line noise when switching from drive to standby modes. (Requires the
use of one external capacitor.)
Specifications
Absolute Maximum Ratings at Ta = 25
°C
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage
VCC max
-0.3 to +8.0
V
Output voltage
VOUT
VCC + VSF
V
Input voltage
VIN
-0.3 to +8.0
V
Ground pin outflow current
IGND
Per channel
800
mA
Allowable power dissipation
Pd max
When mounted*
820
mW
Operating temperature
Topr
-20 to +85
°C
Storage temperature
Tstg
-40 to +150
°C
*1: When mounted on the specified printed circuit board (114.3mm × 76.2mm × 1.5mm), glass epoxy board
Caution 1) Absolute maximum ratings represent the value which cannot be exceeded for any length of time.
Caution 2) Even when the device is used within the range of absolute maximum ratings, as a result of continuous usage under high temperature, high current,
high voltage, or drastic temperature change, the reliability of the IC may be degraded. Please contact us for the further details.
Monolithic Digital IC
Low-Voltage/Low Saturation Voltage Type
Bidirectional Motor Driver
Ordering number : ENA2036B
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating
Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability.


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