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Taiwan Memory Technology |
tm TE
CH
T6336A
Two Channel Constant Current Regulator
FEATURES
GENERAL DESCRIPTION
• Two Channel Constant Current Regulator
• Option Current:
www.DataSheet4U26.c0ommA/85mA, 260mA/130mA, 240mA/120mA,
225mA/110mA
• Low Dropout Voltage
• Low 0.1 uA Shutdown Supply Current
• TO-252 lead-free Package
• ESD Human Body Mode Over 5KV
• 2.7V to 5V Supply Voltage Range
• Build in Thermal Protect 160 °C
APPLICATIONS
• Flash Light
• Lighting
• Portable Communication Devices
• Handheld Electronics
• DC/DC LED driver
TYPICAL APPLICATION CIRCUITS
V IN 2 .7V ~ 5 V
SW
LED1 LED2
T6336A
VDD
CE
GND
The T6336A low-dropout bias supply for
white LED is a high-performance used in
conventional white LED designs.
The T6336A much lower bias variation
with supply voltage variation, significantly
lower dropout voltage and Low Shutdown
Supply Current, and in some applications,
significantly improved efficiency from DC
2.7V to 5V. The T6336A is available in
TO-252 lead-free package.
PART NUMBER EXAMPLES
Part no.
Current Package type
T6336A-2685WG 260mA/85mA TO-252
T6336A-2613WG 260mA/130mA TO-252
T6336A-2412WG 240mA/120mA TO-252
T6336A-2211WG 225mA/110mA TO-252
PIN ARRANGEMENT
(Top view)
TO-252
GND
6
1 23 4 5
TM Technology Inc. reserves the right
P. 1
to change products or specifications without notice.
Publication Date: MAR. 2007
Revision: A
tm TE
CH
PIN DESCRIPTION
SYMBOL Pin no.
DESCRIPTION
VDD
CE
GND
LED2
LED1
www.DataSheet4U.com
1 Power supply
2 Chip enable
3 Ground
4 LED2 Cathode Connection
5 LED1 Cathode Connection
ABSOLUTE MAXIMUM RATINGS
Parameter
Voltage on any pin relative to GND
Operating Temperature Rang
Maximum Soldering Temperature (at leads, 10 sec)
Storage Temperature Rang
Continuous Power Dissipation ( TA = +70°C )
Symbol
VIN
TA
TLEAD
TS
T6336A
Value
-0.3 to 6
-40 to +85
300
-65 to +150
1
Unit
V
°C
°C
°C
W
Electrical Characteristics
(Typical values are at TA =25°C)
Symbol
Description
VDD Operating voltage range
ILED Maximum LED sink current
Conditions
VDD is power supply input
VDD = 4.5V
VLED =3.5V
LED1
LED2
TTP Thermat Protect
ILSD LED leakage current in shutdown VDD = GND, VLED = 5V
Min. Typ. Max Unit
2.7 5 V
225
240 mA
260
85
110
120 mA
130
160 °C
0.2 1 uA
TM Technology Inc. reserves the right
P.2
to change products or specifications without notice.
Publication Date: MAR. 2007
Revision: A
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