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TB62736FUG Fiches technique(PDF) 1 Page - Marktech Corporate

No de pièce TB62736FUG
Description  Step-up Type DC-DC Converter for White LEDs
Download  13 Pages
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Fabricant  MARKTECH [Marktech Corporate]
Site Internet  http://www.marktechopto.com
Logo MARKTECH - Marktech Corporate

TB62736FUG Fiches technique(HTML) 1 Page - Marktech Corporate

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TB62736FUG
TOSHIBA BiCD Digital Integrated Circuit Silicon Monolithic
TB62736FUG
Step-up Type DC-DC Converter for White LEDs
The TB62736FUG is a high efficiency step-up type DC/DC
converter that is designed especially for use as a constant current
driver of white LEDs.
It is possible to drive 2 - 6 white LEDs connected in series using a
lithium-ion battery. (Typ. 4 White LEDs)
This IC incorporates an N-ch-MOS transistor required for
switching of an external inductor.
The forward current of the LEDs can be controlled by an external
resistor. An analog voltage input and a pulse input system (PWM)
can be used as a brightness control function.
The switching frequency is fixed at around 1.1 MHz.
This IC is best suited for use as a driver of white LED back
lighting in color LCDs in PDAs, cellular phones and handy
terminal devices.
Features
• Brightness control function
: LED forward current 25~100%
• Maximum output voltage
: over 24V
• LED current values controlled by external resistance
: 20mA (typ.) @ RSENS=16Ω
• Output power
: 400 mW
• Package
: SSOP6-P-0.95 (SOT23-6)
• High efficiency
: maximum 87% (when used with components as recommended herein)
• Thermal Shutdown Function incorporated : 150 degree (typ.)
Pin Assignment (top view)
Note 1: The IC may break if mounted 180 degrees in reverse. Ensure the device is correctly orientated before
assembley
.
Note 2: The control pin must be set to a certain logic level, as unstable output could result if the pin is left open..
Note 3: Regarding soldering, the following conditions were confirmed
(1) Use of Sn-63Pd solder bath
solder bath temperature
= 230°C, dipping time = 5 seconds, number of times = once, use of R-type flux
(2) Use of Sn-3.0Ag-0.5Cu solder bath
solder bath temperature
= 245°C, dipping time = 5 seconds, number of times = once, use of R-type flux
Weight: 0.016 g (typ.)
SHDN
(NC)
VIN
FB
GND
SW
Company Headquarters
3 Northway Lane North
Latham, New York 12110
Toll Free: 800.984.5337
Fax: 518.785.4725
Web: www.marktechopto.com | Email: info@marktechopto.com
California Sales Office:
950 South Coast Drive, Suite 265
Costa Mesa, California 92626
Toll Free: 800.984.5337
Fax: 714.850.9314
Company Headquarters
3 Northway Lane North
Latham, New York 12110
Toll Free: 800.984.5337
Fax: 518.785.4725
Web: www.marktechopto.com | Email: info@marktechopto.com
California Sales Office:
950 South Coast Drive, Suite 265
Costa Mesa, California 92626
Toll Free: 800.984.5337
Fax: 714.850.9314


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