T6311A Taiwan Memory Technology, T6311A Datasheet - Page 4

• Manufacturer Part Number: T6311A
• Description: Constant-Current White LED Bias Supply
• Manufacturer: Taiwan Memory Technology

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ABSOLUTE MAXIMUM RATINGS
Electrical Characteristics
(TA = -40 to 85°C unless otherwise noted. Typical values are at TA =25°C,
VEN =3.3V, VLED1 = VLED2= VLED3= VLED4= 1V) (Note 1)
TM Technology Inc. reserves the right
to change products or specifications without notice.
Parameter
Voltage on any pin relative to GND
Operating Temperature Rang
Maximum Soldering Temperature (at leads, 10 sec)
Storage Temperature Rang
Continuous Power Dissipation ( T
Symbol
Note 2: Dropout Voltage is defined as the LED to GND voltage at which current sink into LED drops 20% from the
Note 3: Dropout Voltage is defined as the LED to GND voltage at which current sink into LED drops 10% from the
Note 1: Limits are 100% production tested at TA = +25°C. Limits over the operating temperature range are
V
V
I
I
V
V
I
LED
SET
EN
SET
EN
IH
IL
value at VLED = 1V.
guaranteed through correlation using statistical quality control (SQC) methods.
value at VLED = 1V.
Operating voltage range
SET input current range
SET to LED current ratio
SET bias voltage
SET leakage current in
Shutdown
LED to LED current matching I
Maximum LED sink current
LED dropout voltage
LED leakage current in
shutdown
Input high voltage
Input low voltage
EN intput bias current
CH
TE
Description
A
= +70 C )
EN is power supply input
Each LED
I
I
EN=GND,
V
I
I
I
V
EN=GND, T
V
supply input
V
V
V
LED
SET
SET
SET
SET
SET
SET
LED1
EN
EN
EN
EN
=42uA
=42uA
=20uA
=40uA
=80uA
/ I
= 2.50V to 5.5V, EN is power
= 0.4V, T
=3.3V
>V
<V
=V
SET,
Preliminary Product spec. T6311A
IH
IL
LED2
P.4
for disable
I
for enable
(Note 2)
(Note 3)
(Note 3)
SET
Conditions
A
=V
=+25 C, each LED
A
T
T
=42uA
=+25 C
A
A
LED3
= -40 to +25 C
= -40 to +85 C
=V
LED4
Symbol
T
V
T
LEAD
T
= 3.3V,
IN
A
S
Publication Date: JUN. 2005
Min. Typ. Max Unit
1.08
220
2.5
2.5
5
-65 to +150
-40 to +85
-0.3 to 6
Value
300
0.01
0.01
0.05
240
100
100
200
230
1.2
0.3
1
40
1.32
260
260
150
180
360
410
100
5.5
2.2
1
5
1
1
Revision: C
Unit
W
A/A
V
mV
mV
mV
mA
C
C
C
uA
uA
uA
uA
uA
uA
%
V
V
V
V