LB1840 View Datasheet(PDF) - SANYO -> Panasonic
Part Name
Description
Manufacturer
LB1840
SANYO -> Panasonic
LB1840 Datasheet PDF : 5 Pages
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LB1840M
Truth Table
ENA
L
H
H
H
H
Input
IN 1/2
—
L
L
H
H
Output
VM
OUT 1/3 OUT 2/4
Mode
—
OFF
OFF
Standby
H
H
L
Constant-voltage regulated
forward operation
L
H
L
Saturated
forward operation
H
L
H
Constant-voltage regulated
reverse operation
L
L
H
Saturated
reverse operation
The constant-voltage regulated output VO (= voltage between H side output and GND) is controlled by VO = 2.5 × VC. The output
is in the saturated state when the VC input range is 0.2 to 6 V and VO ^ VCC.
Pin Functions
Pin No.
14
9
12
3
6
Symbol
VCC
GND
IN2
IN1
Equivalent Circuit Diagram
8
OUT4
10
OUT3
11
OUT1
13
OUT2
Pin Function
Power supply pin for output and controller.
GND pins for output and controller.
Both must be grounded.
Input pins that determine the excitation of
the outputs.
IN1 control outputs OUT1 and OUT2;
IN2 control outputs OUT3 and OUT4.
L: –0.3 to +0.7 V or open
H: 3.0 to 9.0 V
There are no limitations on the magnitude
relationships between the VCC and VIN
supply voltages.
Output pins.
Have built-in spark killer diodes.
4
Vref
Reference voltage (= 2.0 V).
Continued on next page.
No.4996 -3/5
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