Ordering number:ENN1482C
Monolithic Digital IC
LB1249
Active-Low Input, 8-Unit, High-Current, Low-Saturation Driver
Ap...
Ordering number:ENN1482C
Monolithic Digital IC
LB1249
Active-Low Input, 8-Unit, High-Current, Low-Saturation Driver
Applications
4-phase stepping motor driver of 2 channels. Especially suited for X-Y axis plotter printer driver. High current, low saturation
voltage general-purpose 8-
unit driver (relay, LED, lamp solenoid, etc.).
Features
Low active input type. On-chip input protecting diodes. High current capacity (400mA) and low saturation volt-
age (0.5V max). On-chip spark killer diodes. Wide duty due to Pd of 3W max.
Package Dimensions
unit:mm 3037A-DIP20H
[LB1249]
20 11
R1.7 1
20.0 10 27.0
8.4 4.0 4.0 12.7
11.2 0.4
2.07 2.54
Specifications
Absolute Maximum Ratings at Ta = 25˚C
Parameter Maximum supply
voltage Output supply
voltage Input supply
voltage Output current Spark killer diode forward current GND pin current Instantaneous current drain Allowable power dissipation Operating temperature Storage temperature
Symbol
VCC1,2 VOUT
VIN IOUT IFSM IGND ICCP Pd max
Topr
Tstg
Conditions
GND≤VIN Per unit Pulse width≤35ms, duty 5% Pulse width≤35ms Pulse width≤35ms, duty 5%
0.6
Allowable Operating Ranges at Ta = 25˚C
Parameter
Supply
voltage Input H-level
voltage Input L-level
voltage
Symbol
VCC1 VDD VIH VIL
Conditions
GND≤VIN, IOUT=200mA IOUT≤100µA
1.3
SANYO : DIP20H
Ratings –0.3 to +7.0
–0.3 to +10.0 VDD–7.0 to VDD+15
400 400 3.4 3.2 3.0 –20 to +75 –40 to +125
Unit V V V mA mA A A W ˚C ˚C
Ratings 2.3 to 6.0 2.3 to 6.0
VDD–6.0 to VDD–2.3 VD...