Sanyo LB1257 Specifications

Ordering number:ENN993C

Monolithic Digital IC

LB1257

8-Unit, Low-Saturation Driver

Applications

•4-phase stepping motor driver of 2 channels.

•Especially suited for X-Y plotter driver (Meeting the requirements for Alps DPG plotter).

•General-purpose 8-unit large current & low saturation voltage driver (Relay, LED, lamp, solenoid, etc.).

Features

•Large current capacity (400mA) and ow saturation voltage (0.5V max),

•With spark killer diode provided.

Specifications

Package Dimensions

unit:mm
3007B-DIP18
			[LB1257]
		24.0
18				10
				7.62 6.4
					0.25
1				9
				(3.25)	3.85max
(1.84)	2.54	0.5	1.2	0.51min	3.3
					SANYO : DIP18

Absolute Maximum Ratings at Ta = 25˚C

Parameter	Symbol	Conditions	Ratings	Unit
Maximum supply voltage	VCC max		–0.3 to +7.0	V
Output supply voltage	VOUT		–0.3 to +10.0	V
Input supply voltage	VIN		–0.3 to +7.0	V
Maximum output current	IOUT	Per unit	400	mA
Maximum forward current	IFSM	Spark killer diode, pulse width≤35ms, duty 5%	400	mA
GND pin flow-out current	IGND	Pulse width<35ms	3000	mA
Instantaneous current drain	ICCP	Pulse width<35ms, duty 5%	3000	mA
Allowable power dissipation	Pd max		1.13	W
Operating temperature	Topr		–20 to +75	˚C
Storage temperature	Tstg		–40 to +125	˚C

Allowable Operating Ranges at Ta = 25˚C

Parameter	Symbol	Conditions	Ratings	Unit
Supply voltage	VCC		2.3 to 6.0	V
Input H-level voltage	VIH	IOUT=200mA	2.3 to 7.0	V
Input L-level voltage	VIL	IOUT≤100µA	–0.3 to +0.7	V

Any and all SANYO products described or contained herein do not have specifications that can handle applications that require extremely high levels of reliability, such as life-support systems, aircraft’s control systems, or other applications whose failure can be reasonably expected to result in serious physical and/or material damage. Consult with your SANYO representative nearest you before using any SANYO products described or contained herein in such applications.

SANYO assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges,or other parameters) listed in products specifications of any and all SANYO products described or contained herein.

SANYO Electric Co.,Ltd. Semiconductor Company

TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN

13101TN (KT)/O3095YK/8037KI/8035KI/1192KI, KS No.993–1/3

LB1257

Electrical Characteristics at Ta = 25˚C

Parameter	Symbol	Conditions		Ratings		Unit
			min	typ	max
	VOUT1	VIN=VCC=2.3V, IOUT=200mA			0.4	V
Output voltage	VOUT2	VIN=3.0V, VCC=3.5V, IOUT=200mA			0.25	V
	VOUT3	VIN=5.5V, VCC=6.0V, IOUT=400mA			0.5	V
Output sustain voltage	VO(sus)	VIN : open, IOUT=400mA, t≤10µs	10			V
Output leakage current	Ioff	VIN=0.7V, VCC=6.0V, VOUT=6.0V			100	µA
Input current	IIN	VIN=6.0V, IOUT=0			1.0	mA
Spark killer diode reverse current	Ileak(s)	VOUT=0V, VCC=6.0V			30	µA
Spark killer diode forward voltage	VF(s)	IF(s)=400mA			3.0	V

Equivalent Circuit

The loss of the following waveform is allowed at Ta=60°C

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