TOSHIBA TB62733FTG Technical data

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TOSHIBA TB62733FTG

TOSHIBA Bi-CMOS INTEGRATED CIRCUIT SILICON MONOLITHIC

TB62733FTG

Charge Pump type DC/DC Converter for White LED Driver

■Application

Charge Pump type DC/DC Converter / White LED Driver

■Features

TB62733FTG is charge pump type DC to DC Converter that is accept from

This device provides over 190mA at Vin=3.9V as the maximum current, and

two outputs structure may help to design the backlighting system such as
the system having two displays that are main and sub LCD displays.

Also, this is used for the power supply of flash lighting by using two outputs

1.5 times Charge Pump type step up DC to DC converter

・Utilize Bi-CMOS Process
・Package : VQON24(Leadless type)
・Input Voltage : 2.8V (Min)
・Output Voltage : 4.0V (Min)
・Output Current Ability : Greater than 190mA (Usual State)
・4 Steps Brightness Control (25%, 50%, 75%, 100%)

2.8 up to 4.2V input and continue to up converting operation until FB terminal
is equal to 0.4V. (1.5 times up converting)

At the same time.

■Function

■Features

・Auto Discharge function equipped
・Integrated protection circuit TSD (Thermal Shut Down )

Application Diagram

2.8～5.5V

Brightness
Control

４ Steps)

ON/OFF

Control

C1

1.0μF

C2

1.0μF

C4

1.0μF

C1＋

C1－

C2＋

C2－

Vin

GND

SP1

SP1

CE1

CE2

Vou t0

Vou t1

FB1

Vou t2

FB2

C3

2.0μF

（ＶQON24-0404-0.65）

Weight： 0.0g (Typ.)

Company Headquarters

Company Headquarters

3 Northway Lane North

3 Northway Lane North
Latham, New York 12110

Latham, New York 12110

Toll Free: 800.984.5337

Toll Free: 800.984.5337
Fax: [phone] Web: www.marktechopto.com | Email: [e-mail]

Fax: [phone] Web: www.marktechopto.com | Email: [e-mail]

950 South Coast Drive, Suite 265

950 South Coast Drive, Suite 265

California Sales Office:

California Sales Office:

Costa Mesa, California 92626

Costa Mesa, California 92626

Toll Free: 800.984.5337

Toll Free: 800.984.5337

Fax: [phone]

Fax: [phone]

TOSHIBA TB62733FTG

■ Block Diagram

■ Explanation of Terminals

Terminal

Number

1 NC
2 Vout 1 Output 1 Terminal
3
4
5
6 NC

7 NC
8 FB1
9 NC

10 FB2
11 N C

12 NC
13 NC
14 GND Ground
15

16
17 Vout2 Output 2 Terminal

18 NC
19 SP2 Logic Input Setting of feed back voltage
20 SP1 Logic Input Setting of feed back voltage
21 Vout0 Output 0 Terminal for output Capacitor
22 NC
23 CE1 Logic Input On/ Off Control Terminal for Vout 1
24 CE2 Logic Input On/ Off Control Terminal for Vout 2

C2+

C2－

Vin

SP1

Control

SP2

GND

Logic

CE1 CE2

Terminal Name Function Comments

C1+ Capacitance Terminal for Charge Pump Capacitance for Charge Pump
C1- Capacitance Terminal for Charge Pump Capacitance for Charge Pump
VIN Power supply terminal

Feed Back Control Terminal

Feed Back Control Terminal

C2- Capacitance Terminal for Charge Pump Capacitance for Charge Pump
C2- Capacitance Terminal for Charge Pump Capacitance for Charge Pump

C1+

C1－

Vout0

Vout1

Vout2

ON/OFF

Feed Back Circuit

FB1：Prioritize
FB2：In case "Vout１"

Not In use

P-GND

FB1

FB2

Setting feed back voltage by SP terminal (SP1,SP2)

Setting feed back voltage by SP terminal (SP1,SP2)

● This datasheet is tentative, the values and contents are subject to change without any notice.
27-Jul-04 (Rev1.7) TB62733FTG (Page. 2)

TOSHIBA TB62733FTG

■Absolute Maximum Ratings

Item Symbol Conditions Ratings Unit

Power Supply Vin － －0.3～6.0 V
Input Voltage Vin2 FB/CE/SP Terminal －0.3～Vin+0.3 V
Output Current Iout － 250 mA

Power Dissipation ＰＤ

Operating Temperature TOPR － －25～85 ℃
Storage Temperature TSTG － －55～150 ℃
Junction Temperature Tj － 150 ℃

※When the ambient temperature is excess 25 degree C, it should be derating with 1.24mW/degree C.

■Recommended Operating Conditions（Topr = -25 – 85 Degree C）

Item Symbol Conditions Min. Typ. Max. Unit

Power Supply Vin － 2.8 5.5 V
Logic Input Voltage VCE 0 － Vin V
Input Ripple Voltage Vin(ripple) － － － 40 mVpp
Capacitance for Charge Pump C1/2 0.8 1.0 4.0 μF

Without PCB

With PCB

357

TBD

ｍＷ

● This datasheet is tentative, the values and contents are subject to change without any notice.
27-Jul-04 (Rev1.7) TB62733FTG (Page. 3)

TOSHIBA TB62733FTG

■Electrical Characteristics （Vin＝3.6V, T

Item Symbol

Input Voltage Vin 2.8 5.5 V

Maximum Output Voltage Vout

Feed Back Terminal Voltage

（Tolerance of Current Setting）

Feed Back Terminal Input Current IFB － － 0.5 μA

Iout1／2

Output Current Ability

Iout

Consumption Current IDD

Stand By Consumption Current IDDSTB

Logic Input Voltage

Logic Input Current Ileak Logic Inputs － － 0.5 μA

Auto Discharging

High VIH Logic Inputs 0.7×Vin － － V

Low V

Vout Rise Time

Clock Frequency fOSC 0.85 1.2 1.55 MHz

Rush Current

OPR＝25℃, if it is not specified.）

Measur

ement
Circuit

FB1

V
VFB2

(MAX)

IL Logic Inputs － － 0.3×Vin V

I

auto

I

RUSH

Measurement Condition Min. Typ. Max. Unit

Vin=3.0V，
Iout=100mA

SP1="L" , SP2="L"
Iout=0mA

SP1="L" , SP2="H"
Iout=0mA
SP1="H" , SP2="L"
Iout=0mA
SP1="H" , SP2="H"
Iout=0mA

Vin=3.2V，Vout=4.2V
V

FB1＝0.4V

Vin=3.2V，Vout=4.2V
VFB1＝0.4V
CE1="H"，CE2="H"，

Vin=2.8～4.2V
Iout=100mA
Iout=0mA
CE1/2="L"

CE1/CE2="L⇔Ｈ"
Vin=3.6V
Vout=4.0V
Vin=2.8V、Iout=10mA
The transition time
when Vout from 0V to

4V

Rush Current at CE＝
"H"

4.0 － － V

(94) 100 (106) mV

(188) 200 (212) mV

(282) 300 (318) mV

(376) 400 (424) mV

90 110 － mA

180 － － mA

－ －

－ － 1 μA

－

7

－ － 500 μs

－ － 500

5 mA

－

mA

mA

● This datasheet is tentative, the values and contents are subject to change without any notice.
27-Jul-04 (Rev1.7) TB62733FTG (Page. 4)