Ordering number : ENA2036A
Monolithic Digital IC
LB1848MC
Overview
Low-Voltage/Low Saturation Voltage Type
Bidirectional Motor Driver
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
Maximum supply voltage
Output voltage
Input voltage
Ground pin outflow current
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
VCC max
VOUT
VIN
IGND
Pd max
Topr
Tstg
Per channel
When mounted*
Conditions
Ratings
-0.3 to +8.0
VCC + VSF
-0.3 to +8.0
800
820
-20 to +75
-40 to +150
Unit
V
V
V
mA
mW
°C
°C
Continued on next page.
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shall not be intended for use for any "special application" (medical equipment whose purpose is to sustain life,
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Specifications of any and all SANYO Semiconductor Co.,Ltd. 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.
41812 SY/32112 SY 20120229-S00010 No.A2036-1/6
ONSEMI [ ON SEMICONDUCTOR ]
