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TA76432FT/FC/F/FR/S

TOSHIBA Bipolar Linear Integrated Circuit

Silicon Monolithic

TA76432FT,TA76432FC,TA76432F,TA76432FR,TA76432S

1.26V Adjustable High-Precision Shunt Regulators

The TA76432 series consists of adjustable high-precision shunt

regulators whose output voltage (V

) can be set arbitrarily

using two external resistors.

These devices have a precise internal reference voltage of 1.26 V,

enabling them to operate at low voltage.

The devices are ideal for use as error amplifiers in 3V

switching-regulator systems. In addition, they can be used as

zener diodes to perform temperature compensation.

TA76432FT

Features

•

Precision reference voltage: V

REF

= 1.26 V ± 1.4% (Ta = 25°C)

Small temperature coefficient: |αV

REF

| = 30 ppm/°C (typ.)

Adjustable output voltage: V

REF

≤

OUT

≤

19 V

Minimum cathode current for regulation:

kmin

= 0.5 mA (max.)

Operating temperature: Ta =

−40

to 85°C

The TA76432FT is housed in an ultra-thin UFV package.

(thickness: 0.7 mm typ.)

Packages: UFV (TA76432FT), SMV (TA76432FC),

PW-Mini (TA76432F/FR) and

LSTM (TA76432S)

TA76432FC

SON5-P-0202-0.65C

TA76432F/FR

TA76432S

Weight

SON5-P-0202-0.65C

SSOP5-P-0.95

HSOP3-P-1.50

SSIP3-P-1.27

: 0.007 g (typ.)

: 0.014 g (typ.)

: 0.05 g (typ.)

: 0.36 g (typ.)

2011-09-29

TA76432FT/FC/F/FR/S

Pin Assignment/Marking

TA76432FT/TA76432FC

1: NC

2: ANODE (A)

3: CATHODE (K)

4: REFERENCE (REF)

5: ANODE (A)

Part No. (or

abbreviation code)

TA76432F/FR

Lot No.

Note

No.

TA76432F

CATHODE (K)

ANODE (A)

REFERENCE

(REF)

TA76432FR

REFERENCE

(REF)

ANODE (A)

CATHODE (K)

TA76432S

TA76

432S

1: REFERENCE (REF)

2: ANODE (A)

3: CATHODE (K)

Note

Lot No

• TA76432F: AU

• TA76432FR: BU

TA76432F vs. TA76432FR

Reverse pin connection.

Note: A line under a Lot No. identifies the indication of product Labels.

Not underlined: [[Pb]]/INCLUDES > MCV

Underlined: [[G]]/RoHS COMPATIBLE or [[G]]/RoHS [[Pb]]

Please contact your TOSHIBA sales representative for details as to environmental matters such as the RoHS

compatibility of Product. The RoHS is the Directive 2002/95/EC of the European Parliament and of the Council of 27

January 2003 on the restriction of the use of certain hazardous substances in electrical and electronic equipment.

How to Order

Product No.

TA76432FT (TE85L,F)

Package Type

UFV

(surface-mount type)

SMV

(surface-mount type)

PW-Mini (SOT-89)

(surface-mount type)

LSTM

(lead type)

Packing Type and Capacity

Embossed tape: 3000 pcs/tape

TA76432FC (TE85L,F)

TA76432F/FR(F)

TA76432F/FR (TE12L,F)

TA76432S(F)

TA76432S (TPE6,F)

Embossed tape: 3000 pcs/reel

On cut tape (TE12L,F): 100 pcs/tape section

Embossed tape: 1000 pcs/reel

Loose in bag: 200 pcs/bag

Radial tape: 2000 pcs/reel

Note: The lead pitch for the TA76432S(F) and TA76432S (TPE6,F) may vary.

Functional Block Diagram

Cathode (K)

Circuit Symbol

Cathode (K)

Reference (REF)

1.26 V

Anode (A)

2011-09-29

TA76432FT/FC/F/FR/S

Typical Application Circuits

1.26 V Reference (V

REF

)

OUT

1.26 V

Shunt regulator (V

REF

)

OUT

REF

⎛

⎞

⎜

OUT

REF

⎜

⎟ +

REF

⋅

⎟

⎝

⎠

Usage Precautions

(1)

TA76432FT, TA76432FC, TA76432F/FR, TA76432S

These products contain MOS elements. Please take care to avoid generating static electricity when

handling these devices.

TA76432FT, TA76432FC, TA76432F/FR, TA76432S

The oscillation frequency of these devices is determined by the value of the capacitor connected between

the anode and the cathode.

When establishing maximum operating condition parameters, please derate the absolute maximum rating

values specified in these datasheets so as to allow an operational safety margin.

Use of a laminated ceramic capacitor is recommended.

Precautions when handling anode pins of TA76432FT/TA76432FC

Pin 2 and pin 5 should normally be shorted together. If only pin 5 is used, pin 2 should either be left open

or always kept at a lower potential than pin 5. Do not leave pin 5 open and use pin 2 only.

(2)

(3)

2011-09-29

TA76432FT/FC/F/FR/S

Absolute Maximum Ratings

(Ta

25°C)

Characteristics

Cathode voltage

Cathode current

Cathode-anode reverse current

Reference voltage

Reference current

Reference-anode reverse current

TA76432FT

TA76432FC

TA76432F/FR

TA76432S

TA76432FT

TA76432FC

TA76432F/FR

TA76432S

Operating temperature

Junction temperature

Storage temperature

opr

stg

Symbol

−I

REF

−I

REF

Rating

0.45 (Note 1)

0.2

0.38 (Note 2)

0.5

0.8

277 (Note 1)

625

328 (Note 2)

250

156

−40

to 85

150

−55

to 150

ºC

ºC/W

Unit

μA

Power dissipation

Thermal resistance

Note 1: Glass epoxy board mounting: 30 mm

30 mm

0.8 mmt (Cu pad area 35 mm )

Note 2: Glass epoxy board mounting: 30 mm

30 mm

0.8 mmt (Cu pad area 50 mm )

Note 3: Using continuously under heavy loads (e.g. the application of high temperature/current/voltage and the

significant change in temperature, etc.) may cause this product to decrease in the reliability significantly

even if the operating conditions (i.e. operating temperature/current/voltage, etc.) are within the absolute

maximum ratings and the operating ranges.

Please design the appropriate reliability upon reviewing the Toshiba Semiconductor Reliability Handbook

(“Handling Precautions”/“Derating Concept and Methods”) and individual reliability data (i.e. reliability test

report and estimated failure rate, etc).

Operating Ranges

Characteristics

Cathode voltage

Cathode current

Operating temperature

Symbol

opr

Min

REF

0.5

−40

Typ.

Max

Unit

°C

⎯

2011-09-29

TA76432FT/FC/F/FR/S

Electrical Characteristics

Characteristics

Reference voltage

Deviation of reference input voltage

over temperature

Ratio of change in reference input

voltage to the change in cathode

voltage

Reference input current

Deviation of reference input current

over temperature

Minimum cathode current for

regulation

Off-State cathode current

Dynamic impedance

(Unless otherwise specified, Ta

25°C, I

5 mA)

Symbol

REF

REF (dev)

ΔV

REF

/ΔV

REF

REF (dev)

Kmin

Koff

⎪Z

⎪

REF

0°C

85°C, V

REF

5 V

19 V

REF

0°C

85°C, V

REF

10 kΩ, R

= ∞

REF

19 V, V

REF

0 V

REF

, f

1 kHz,

0.5 mA

15 mA

= =

Test Condition

Min

1.242

⎯

Typ.

1.26

0.5

0.3

0.2

⎯

0.2

Max

1.278

2.5

2.0

1.2

0.5

1.0

0.5

Unit

mV/V

μA

The deviation parameters V

REF (dev)

and I

REF (dev)

are defined as the maximum variation of the V

REF

and I

REF

over the

rated temperature range.

The average temperature coefficient of the V

REF

is defined as:

REF

max

REF (dev)

min

⎛

⎜

REF (dev)

⎜

REF

@25

⎝

REF

⎞

⎟

⎠

(

ppm

)

ΔTa

Application Circuit Example

Error amplification circuit for the switching power supply

Photo-

coupler

OUT

GND

Shunt regulator

This circuit amplifies the difference between the switching power supply’s secondary output voltage and the shunt

regulator’s reference voltage. It then feeds the amplified voltage back to the primary input voltage via the

photocoupler.

2011-09-29

型号	TA76432S(F,M)	TA76432FC(TE85L,F)	TA76432S(T6MURATFM	TA76432S(TE6,F,M)	TA76432S,F(J	TA76432S,T6F(J	TA76432S,T6MURAF(J	TA76432S,T6WNLF(J	TA76432S,WNLF(J
描述	IC REG LINEAR 15MA LSTM	IC vref shunt adj smv	IC REG LINEAR 15MA LSTM	IC REG LINEAR 15MA LSTM	IC REG LINEAR 15MA LSTM	IC REG LINEAR 15MA LSTM	IC REG LINEAR 15MA LSTM	IC REG LINEAR 15MA LSTM	IC REG LINEAR 15MA LSTM
稳压器数	1	-	1	1	1	1	1	1	1
电流 - 输出	15mA	-	15mA	15mA	15mA	15mA	15mA	15mA	15mA
工作温度	-40°C ~ 85°C	-	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
安装类型	通孔	-	通孔	通孔	通孔	通孔	通孔	通孔	通孔
封装/外壳	TO-226-3，TO-92-3 长体	-	TO-226-3，TO-92-3 长体	TO-226-3，TO-92-3 长体	TO-226-3，TO-92-3 长体	TO-226-3，TO-92-3 长体	TO-226-3，TO-92-3 长体	TO-226-3，TO-92-3 长体	TO-226-3，TO-92-3 长体
供应商器件封装	LSTM	-	LSTM	LSTM	LSTM	LSTM	LSTM	LSTM	LSTM