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BA178M!!T / BA178M!!FP series

Regulator ICs

Standard 78M series, 3-pin regulator

BA178M!!

!!!!

!!T / BA178M!!

!!!!

!!FP series

The BA178M!!T and BA178M!!FP series are 3-pin, fixed positive output voltage regulators. These regulators are

used to provide a stabilized output voltage from a fluctuating DC input voltage.

There are 11 fixed output voltages, as follows : 5V, 6V, 7V, 8V, 9V, 10V, 12V, 15V, 18V, 20V, and 24V.

The maximum current capacity is 0.5A for each of the above voltages.

Application

Constant voltage power supply

"Features

1) Built-in overcurrent protection circuit and thermal shutdown circuit.

2) Excellent ripple regulation.

3) Available in TO-220FP and TO252-3 packages, to meet wide range of applications.

4) Compatible with other manufacturers' regulators.

5) Richly diverse lineup. (5V, 6V, 7V, 8V, 9V, 10V, 12V, 15V, 18V, 20V, 24 V)

Product codes

Output voltage (V) Product No. Output voltage (V) Product No.

512

615

718

820

924

10 −−

BA178M05T / FP

BA178M09T / FP

BA178M10T / FP

BA178M12T / FP

BA178M15T / FP

BA178M18T / FP

BA178M20T / FP

BA178M24T / FP

BA178M06T / FP

BA178M07T / FP

BA178M08T / FP

Summary of content (11 pages)

PAGE 1
BA178M!!T / BA178M!!FP series Regulator ICs Standard 78M series, 3-pin regulator BA178M!! !!T !!FP !! / BA178M!! !! series The BA178M!!T and BA178M!!FP series are 3-pin, fixed positive output voltage regulators. These regulators are used to provide a stabilized output voltage from a fluctuating DC input voltage. There are 11 fixed output voltages, as follows : 5V, 6V, 7V, 8V, 9V, 10V, 12V, 15V, 18V, 20V, and 24V. The maximum current capacity is 0.5A for each of the above voltages.
PAGE 2
BA178M!!T / BA178M!!FP series Regulator ICs "Internal circuit configuration diagram (1) INPUT R4 R10 R8 R9 R13 Q8 Q9 Q12 D2 Q16 Q15 R5 Q13 R21 R12 R17 Q10 Q17 R11 (3) OUTPUT Q6 R6 Q5 R15 R2 R1 R16 C1 R20 Q11 D1 Q7 Q18 Q4 Q2 Q14 Q1 Q3 R19 R14 R7 R22 R10 R3 D3 (2) COMMON "Absolute maximum ratings (Ta=25°C) ^Common specifications for BA178M!!T / FP seriesp Parameter Symbol Limits Unit VIN 35 V Applied voltage TO220FP Power dissipation 2.0 ∗ Pd 1.
PAGE 3
BA178M!!T / BA178M!!FP series Regulator ICs BA178M15T / FP BA178M12T / FP Parameter Symbol Min. Typ. Max. Unit Symbol Min. Typ. Max. Unit Input voltage VIN 15 − 27 V Input voltage VIN 17.5 − 30 V Output current IO − − 0.5 A Output current IO − − 0.5 A Parameter BA178M18T / FP Parameter BA178M20T / FP Symbol Min. Typ. Max. Unit Symbol Min. Typ. Max. Unit Input voltage VIN 21 − 33 V Input voltage VIN 23 − 33 V Output current IO − − 0.
PAGE 4
BA178M!!T / BA178M!!FP series Regulator ICs (unless otherwise noted, Ta=25°C, VIN=11V, IO=350mA) Parameter Unit Conditions Measurement circuit Symbol Min. Typ. Max. Output voltage 1 VO1 5.75 6.0 6.25 V IO=350mA Fig.1 Output voltage 2 VO2 5.7 − 6.3 V VIN=8.5~21V, IO=5~350mA Fig.1 Input stability 1 Reg.I1 − 3 100 mV VIN=8~25V, IO=200mA Fig.1 Input stability 2 Reg.I2 − 1 50 mV VIN=9~25V, IO=200mA Fig.1 R.R.
PAGE 5
BA178M!!T / BA178M!!FP series Regulator ICs (unless otherwise noted, Ta=25°C, VIN=14V, IO=350mA) Parameter Conditions Measurement circuit Symbol Min. Typ. Max. Unit Output voltage 1 VO1 7.7 8.0 8.3 V IO=350mA Fig.1 Output voltage 2 VO2 7.6 − 8.4 V VIN=10.5~23V, IO=5~350mA Fig.1 Input stability 1 Reg.I1 − 4 100 mV VIN=10.5~25V, IO=200mA Fig.1 Input stability 2 Reg.I2 − 1 50 mV VIN=11~12V, IO=200mA Fig.1 R.R.
PAGE 6
BA178M!!T / BA178M!!FP series Regulator ICs (unless otherwise noted, Ta=25°C, VIN=16V, IO=350mA) Parameter Conditions Measurement circuit Symbol Min. Typ. Max. Unit Output voltage 1 VO1 9.6 10.0 10.4 V IO=350mA Fig.1 Output voltage 2 VO2 9.5 − 10.5 V VIN=12.5~25V, IO=5~350mA Fig.1 Input stability 1 Reg.I1 − 5 100 mV VIN=12.5~28V, IO=200mA Fig.1 Input stability 2 Reg.I2 − 2 50 mV VIN=14~26V, IO=200mA Fig.1 R.R.
PAGE 7
BA178M!!T / BA178M!!FP series Regulator ICs (unless otherwise noted, Ta=25°C, VIN=23V, IO=350mA) Parameter Output voltage 1 Conditions Measurement circuit Symbol Min. Typ. Max. Unit VO1 14.4 15.0 15.6 V IO=350mA Fig.1 VIN=17.5~30V, IO=5~350mA Fig.1 VO2 14.25 − 15.75 V Input stability 1 Reg.I1 − 6 100 mV VIN=17.5~30V, IO=200mA Fig.1 Input stability 2 Reg.I2 − 3 50 mV VIN=20~30V, IO=200mA Fig.1 Output voltage 2 R.R.
PAGE 8
BA178M!!T / BA178M!!FP series Regulator ICs (unless otherwise noted, Ta=25°C, VIN=29V, IO=350mA) Parameter Max. Unit Conditions Measurement circuit Symbol Min. Typ. Output voltage 1 VO1 19.2 20.0 20.8 V IO=350mA Fig.1 Output voltage 2 VO2 19.0 − 21.0 V VIN=23~33V, IO=5~350mA Fig.1 Input stability 1 Reg.I1 − 8 100 mV VIN=23~33V, IO=200mA Fig.1 Input stability 2 Reg.I2 − 4 50 mV VIN=24~33V, IO=200mA Fig.1 R.R.
PAGE 9
BA178M!!T / BA178M!!FP series Regulator ICs "Measurement circuits INPUT 0.1µF 0.33µF VIN V VIN OUTPUT 10Ω5W INPUT V IO COMMON OUTPUT 0.1µF 100µF 0.33µF eOUT V COMMON IO eIN=1Vrms f=120Hz Ripple rejection ratioR.R.=20 log Fig. 1 Measurement circuit for output voltage, input stability, load regulation, temperature coefficient of output voltage INPUT OUTPUT VIN BPF IO 10Hz~ 100kHz COMMON eIN eOUT ) Fig. 2 Measurement circuit for ripple rejection ratio 10µF + 0.1 µF 0.
PAGE 10
BA178M!!T / BA178M!!FP series Regulator ICs POWER DISSIPATION : Pd (W) 12.5 (1) Infinite heat sink, θj−c=12.5 (°C / W) (2) No heat sink θj−c=125.0 (°C /W) (1) 10.0 10 7.5 5 2.5 (2) 1.0 0 0 25 50 75 100 125 150 AMBIENT TEMPERATURE : Ta (°C) Fig.
PAGE 11
BA178M!!T / BA178M!!FP series Regulator ICs "External dimensions (Units : mm) BA178MOOFP series 7.0 +0.3 −0.1 2.8 +0.2 −0.1 φ3.1±0.1 6.5±0.2 5.0 +0.2 −0.1 (2) 0.55 +0.1 −0.05 (1) 1.5 2.5 0.8 0.65 2.3±0.2 0.8 2.54±0.5 0.5±0.1 9.5±0.5 7.0±0.3 1.3 2.54±0.5 2.3±0.2 5.5±0.2 8.0±0.2 12.0±0.2 4.5 +0.3 −0.1 10.0 +0.3 −0.1 5.0±0.2 13.5Min. 17.0 +0.4 −0.2 1.8±0.2 BA178MOOT series 0.65 2.3±0.2 (3) (1) (2) (3) (1) (2) (3) TO220FP 0.5±0.1 (1) INPUT (2) COMMON (3) OUTPUT 2.6±0.