LA2284 Datasheet, PDF (1/4 Pages) Unisonic Technologies – 5-DOT DUAL LED LEVEL METER DRIVER

UTC LA2284 LINEAR INTEGRATED CIRCUIT
5-DOT DUAL LED LEVEL METER
DRIVER
DESCRIPTION
The UTC LA2284 is a monolithic integrated circuit
designed for 5-dot LED level meter drivers with a built-in
rectifying amplifier. It is suitable for AC/DC level meters such
as VU meters or signal meters.
FEATURE
*High gain rectifying amplifier included (Gv=26dB)
*Low radiation noise when LED turns on
*Logarithmic indicator for 5-dot LED of bar type
*Constant current output(15mA)
*Wide operating supply voltage(3.5V ~ 16V)
*Not necessary diode or transistor for ALC
*Minimum number of external parts required
BLOCK DIAGRAM
SIP-9
ABSOLUTE MAXIMUM RATINGS(Ta=25°C)
PARAMETER
SYMBOL
Supply Voltage
Vcc
Amplifier input Voltage
V8
Pin 7 Voltage
V7
D terminal Output Voltage
VD
Operating Temperature
Topr
Storage Temperature
Tstg
Power dissipation
PD
VALUE
18
-0.5 ~ Vcc
6
18
-20 to +80
-40 to 125
1100
UNIT
V
V
V
V
°C
°C
W
UTC UNISONIC TECHNOLOGIES CO., LTD. ¹
QW-R113-002,A