TB62752BFUG(O,EL) Toshiba, TB62752BFUG(O,EL) Datasheet

IC LED DRIVR WHITE BCKLGT 6-SSOP

TB62752BFUG(O,EL)

Manufacturer Part Number
TB62752BFUG(O,EL)
Description
IC LED DRIVR WHITE BCKLGT 6-SSOP
Manufacturer
Toshiba
Type
Backlight, White LEDr
Datasheet

Specifications of TB62752BFUG(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
80%
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Voltage - Output
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
TB62752BFUGTR

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
TB62752BFUG(O,EL)
Quantity:
3 166
Company:
Part Number:
TB62752BFUG(O,EL)
Quantity:
30 000
Step Up Type DC/DC Converter for White LED
Converter specially designed for constant current driving of White
LED.
Li-ion battery.
and LED current (IF) is set with an external resistor.
of PDA, Cellular Phone, or Handy Terminal Equipment.
Features
Pin Assignment
The TB62752BFUG is a high efficient Step-Up Type DC/DC
This IC can drive 2-7 white LEDs connected series using a
This IC contains N-ch MOS-FET Transistor for Coil-Switching,
This IC is especially for driving back light white LEDs in LCD
This device is Pb-free product.
2-7 white LEDs connected series.
Variable LED current IF is set with a external resistor: 20 mA (typ.) @RSENS = 15 Ω
Output power: Available for 800 mW LED loading (7LEDs, I
High efficiency: 80% over (using recommended external parts)
Output over voltage shutdown function
: Switching operation is shut downed when OVD terminal voltage is over 37 V (typ.).
IC package: SSOP6-P-0.95B
Switching frequency: 1.0 MHz (typ.)
Note: This IC could be destroyed in some case if amounted in 180° inverse direction.
Please be careful about IC direction in mounting.
(top view)
TOSHIBA BiCD Digital Integrated Circuit Silicon Monolithic
TB62752BFUG
SHDN
OVD
VIN
1
2
3
1
F
= Over 25 mA)
6
5
4
FB
GND
SW
Weight: 0.016 g (typ.)
TB62752BFUG
2007-04-04

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TB62752BFUG(O,EL) Summary of contents

Page 1

... TOSHIBA BiCD Digital Integrated Circuit Silicon Monolithic Step Up Type DC/DC Converter for White LED The TB62752BFUG is a high efficient Step-Up Type DC/DC Converter specially designed for constant current driving of White LED. This IC can drive 2-7 white LEDs connected series using a Li-ion battery. ...

Page 2

Block Diagram VIN VIN ∑ SHDN Pin Function Pin No. Symbol Voltage-input terminal for IC-enable/disable LED-I A high input on this pin enables the IC to operate while a low input causes it to shut down. The behavior 1 SHDN ...

Page 3

I/O Equivalent Pin Circuits 1. SHDN Terminal VIN SHDN 1 3. VIN Terminal to GND Terminal VIN 3 GND Terminal VIN OVD Terminal OVD Terminal TB62752BFUG 2007-04-04 ...

Page 4

Absolute Maximum Ratings Characteristics Power supply voltage Input voltage Switching terminal voltage Switching terminal current Power dissipation Thermal resistance Operation temperature range Storage temperature range Maximum junction temperature Note 1: Ensure that the supply voltage never exceeds 6.0 V. Note ...

Page 5

Usage Precautions Protection in LED Opened Condition The operation with OVD terminal is available for the protection in case LED circuit opened. When the voltage of OVD terminal is over 37 V (typ.), Nch MOS switching operation is disabled in ...

Page 6

Current Dimming Control Recommended brightness control circuits are 4 types. (1) Input PWM signal to SHDN terminal I can be adjusted with PWM signal by inputting it to SHDN terminal. F <<PWM signal frequency>> • The recommended PWM signal frequency ...

Page 7

Input analog voltage to FB terminal I can be adjusted with analog voltage input to FB terminal. F This method is without repeating IC ON/OFF, and no need to consider holding rash current. [Notice] • LED current value goes ...

Page 8

Input logic signal I can be adjusted with logic signal input as indicated in recommended circuit. F The resistor connected the ON-State Nch MOS drain and RSENS determines IF. Average of setting current I O 300 [mV] I [mA] ...

Page 9

TEST Circuit (ON GND SW TB62752BFUG OVD VIN SHDN SHDN H SHDN GND SW TB62752BFUG OVD VIN SHDN 1 2 ...

Page 10

µH CRS04 3 4 VIN SW TB62752BFUG GND SHDN OVD 22 µH CRS04 3 4 VIN SW TB62752BFUG GND SHDN 1 5 The locations of the ...

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Package Dimensions Weight: 0.016 g (typ.) 11 TB62752BFUG 2007-04-04 ...

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TB62752BFUG 2007-04-04 ...

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