TB62736FUG(O,EL) Toshiba, TB62736FUG(O,EL) Datasheet

IC LED DRIVR WHITE BCKLGT 6-SSOP

TB62736FUG(O,EL)

Manufacturer Part Number
TB62736FUG(O,EL)
Description
IC LED DRIVR WHITE BCKLGT 6-SSOP
Manufacturer
Toshiba
Type
Backlight, White LEDr
Datasheet

Specifications of TB62736FUG(O,EL)

Constant Current
Yes
Topology
PWM, Step-Up (Boost)
Number Of Outputs
1
Internal Driver
Yes
Type - Primary
Backlight
Type - Secondary
White LED
Frequency
770kHz ~ 1.43MHz
Voltage - Supply
2.8 V ~ 5.5 V
Mounting Type
Surface Mount
Package / Case
SC-74-6
Operating Temperature
-40°C ~ 85°C
Current - Output / Channel
20mA
Internal Switch(s)
Yes
Efficiency
87%
Number Of Segments
6
Operating Supply Voltage
2.8 V to 5.5 V
Maximum Power Dissipation
470 mW
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Voltage - Output
-
Lead Free Status / Rohs Status
 Details
Other names
TB62736FUGTR
Step-up Type DC/DC Converter for White LEDs
converter that is designed especially for use as a constant current
driver of white LEDs.
using a lithium-ion battery. (Typ. 4 White LEDs)
switching of an external inductor.
external resistor. An analog voltage input and a pulse input
system (PWM) can be used as a brightness control function.
handy terminal devices.
Features
The TB62736FUG is a high efficiency step-up type DC/DC
It is possible to drive 2 - 6 white LEDs connected in series
This IC incorporates an N-ch-MOS transistor required for
The forward current of the LEDs can be controlled by an
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
The suffix (G) appended to the part number represents a Lead(Pb)-Free product.
Brightness control function with changing drive current:
LED current values controlled by external resistance
Output power
High efficiency
Switching Frequency
Package
LED current I
TOSHIBA BiCD Digital Integrated Circuit Silicon Monolithic
F
= 25% to 100% (analog input)
TB62736FUG
: 20mA (typ.) @ RSENS=16Ω
: 400 mW
: maximum 87% (when used with components as recommended herein)
: 1.1MHz(Typ.)
: SSOP6-P-0.95 (SOT23-6)
1
Weight: 0.016 g (typ.)
TB62736FUG
2006-06-14

Related parts for TB62736FUG(O,EL)

TB62736FUG(O,EL) Summary of contents

Page 1

... 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 possible to drive white LEDs connected in series using a lithium-ion battery ...

Page 2

Block Diagram 3 VIN Reference Mono Multi Level Detect 1 SHDN Pin Assignment (top view) SHDN Note 1: The IC may break if mounted 180 degrees in reverse. Ensure the device is correctly orientated before assembley Pin Functions No. Symbol ...

Page 3

I/O Equivalent Pin Circuits 1. SHDN pin VIN SHDN pin pin NC 2 The NC pin is not connected to any internal circuit pin VIN TB62736FUG 2006-06-14 ...

Page 4

... LED becomes open, and to use a zener diode of lower tolerance. An example of IZD control by R_ZD connection. (RSENS = 16 Ω) R_DZ (Ω) IZD (mA) 500 0.6 100 2.8 In order to avoid adverse effects on driver characteristics, Toshiba recommends a resistance of 500 ohms or less. 4.7-10µ Off Time Control Mono Multi CTL AMP ...

Page 5

Output-side Capacitor Setting It is recommended that the value equal to, or greater than 1.0 (µF). External Inductor Size Setting For each number of LEDs, the selected inductance should be greater than the value indicated in the ...

Page 6

Absolute Maximum Ratings Characteristics Power supply voltage Input voltage Switching pin voltage Power Dissipation Thermal resistance Operating temperature range Storage temperature Maximum junction temperature Note3: However, do not exceed 6V. Note4: Power dissipation is reduced by 3.8mW/°C from the absolute ...

Page 7

... Evaluation conditions (Ta = 25° CXLD120 series (NEO MAX CO.,Ltd.) 1 WLEDs (Size: 2.5 mm × 3.0 mm × 1.2 mm C2012JB1E225K (TDK Corp C2012JB1E105K (TDK Corp.) 2 S-Di : CUS02 1 A/30 V (TOSHIBA Corp.) WLEDs : NSCW215T (NICHIA Corp.) RSENS : RK73B1ETBK (KOA Corp.) Input Voltage - Efficiency/Output Current 5LED Drive, L=10µH 35 100 ...

Page 8

... Output Current (mA LEDs 3 LEDs 4 LEDs 5 LEDs 6 LEDs 8 TB62736FUG : 1001AS series (TOKO, INC) (Size: 3.6 mm × 3.6 mm × 1.2 mm) : C2012JB1E225K (TDK Corp.) : C2012JB1E105K (TDK Corp.) : CUS02 1 A/30 V (TOSHIBA Corp.) 100 IOUT 60 Efficiency Efficiency 50 4 4.3 4.6 4.9 5.2 5.5 ...

Page 9

... Output Current (mA LEDs 3 LEDs 4 LEDs 5 LEDs 6 LEDs 9 TB62736FUG : LQH2M series (Murata Manufacturing Co.,Ltd.) (Size: 2.0 mm × 1.6 mm × 0.95 mm) : C2012JB1E105K (TDK Corp.) : C2012JB1E105K (TDK Corp.) : CUS02 1 A/30 V (TOSHIBA Corp.) 100 IOUT 60 Efficiency Efficiency 50 4 4.3 4.6 4.9 5.2 5.5 ...

Page 10

... Output Current (mA LEDs 3 LEDs 4 LEDs 5 LEDs 6 LEDs 10 TB62736FUG : VLF3010A series (TDK Corp.) (Size: 3.0 mm × 3.0 mm × 1.0 mm) : C2012JB1E225K (TDK Corp.) : C2012JB1E105K (TDK Corp.) : CUS02 1 A/30 V (TOSHIBA Corp.) 100 IOUT 60 Efficiency Efficiency 50 4 4.3 4.6 4.9 5.2 5.5 ...

Page 11

... S-Di • Evaluation conditions (Ta = 25° 32R51 (KOA Corp.) WLEDs 1 (Size: 3.2 mm × 2.5 mm × 0.6 mm C2012JB1E225K (TDK Corp C2012JB1E105K (TDK Corp.) 2 S-Di : CUS02 1 A/30 V (TOSHIBA Corp.) WLEDs : NSCW215T (NICHIA Corp.) RSENS : RK73B1ETBK (KOA Corp.) Input Voltage - Efficiency/Output Current 100 Iout 60 ...

Page 12

Package Dimensions Weight: 0.016 g (typ.) 12 TB62736FUG 2006-06-14 ...

Page 13

... Application Circuits The application circuits shown in this document are provided for reference purposes only. Thorough evaluation is required, especially at the mass production design stage. Toshiba does not grant any license to any industrial property rights by providing these examples of application circuits. 5. Test Circuits Components in the test circuits are used only to obtain and confirm the device characteristics. These components and circuits are not guaranteed to prevent malfunction or failure from occurring in the application equipment ...

Page 14

Carefully select external components (such as inputs and negative feedback capacitors) and load components (such as speakers), for example, power amp and regulator. If there is a large amount of leakage current such as input or negative feedback condenser, ...

Page 15

Points to Remember on Handling of ICs (1) Heat Radiation Design In using an IC with large current flow such as power amp, regulator or driver, please design the device so that heat is appropriately radiated, not to exceed the ...

Page 16

... TOSHIBA is continually working to improve the quality and reliability of its products. Nevertheless, semiconductor devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical stress the responsibility of the buyer, when utilizing TOSHIBA products, to comply with the standards of safety in making a safe design for the entire system, and to avoid situations in which a malfunction or failure of such TOSHIBA products could cause loss of human life, bodily injury or damage to property ...

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