ROHM BA17824T, BA17824FP, BA17808T, BA17808FP, BA17807FP Datasheet

BA178!!T / FP series

Regulator ICs

Standard 78 series, 3-pin regulator

BA178!!T / FP series

The BA178!!T and BA178!!FP series are 3pin 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 1A 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 TO220FP 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, 24V).

"Product codes

Output voltage (V)	Product name	Output voltage (V)	Product name
5	BA17805T / FP	12	BA17812T / FP
6	BA17806T / FP	15	BA17815T / FP
7	BA17807T / FP	18	BA17818T / FP
8	BA17808T / FP	20	BA17820T / FP
9	BA17809T / FP	24	BA17824T / FP
10	BA17810T / FP	−	−

BA178!!T / FP series

Regulator ICs

"Internal circuit configuration diagram

(1)

INPUT

R4	R10		R8	R9	R13
			Q8
Q12				Q9	D2
							Q16
					Q15		Q17
						R21	R12
R5	Q13					R17	R11	(3)
				Q10
				Q6				OUTPUT
R6
			Q5
				R15
		R1	R2	R16			R20
				C1	Q11
D1
	Q18		Q7
			Q2	Q4
	Q14	Q1		Q3			R19
				R14
R7	R22		R18	R3
				D3				(2)
								COMMON

"Absolute maximum ratings (Ta=25°C)

^Common specifications for BA178!!T / FP seriesp

	Parameter		Symbol	Limits	Unit
	Applied voltage		VIN	35	V
	Power	TO220FP	Pd	2.0	W
	dissipation	TO252-3		1.0
	Operating temperature		Topr	−40 +85	˚C
	Storage temperature		Tstg	−55 +150	˚C

Reduced by 16 mW / ˚C (TO220FP) and 8 mW / ˚C (TO252-3) for each increase in Ta of 1˚C over 25˚C (without heat sink).

"Recommended operating conditions (Ta=25°C)

BA17805T / FP

Parameter	Symbol	Min.	Typ.	Max.	Unit
Input voltage	VIN	7.5	−	25	V
Output current	IO	−	−	1	A
BA17807T / FP
Parameter	Symbol	Min.	Typ.	Max.	Unit
Input voltage	VIN	9.5	−	22	V
Output current	IO	−	−	1	A

BA17806T / FP

Parameter	Symbol	Min.	Typ.	Max.	Unit
Input voltage	VIN	8.5	−	21	V
Output current	IO	−	−	1	A
BA17808T / FP
Parameter	Symbol	Min.	Typ.	Max.	Unit
Input voltage	VIN	10.5	−	23	V
Output current	IO	−	−	1	A

BA178!!T / FP series

Regulator ICs

BA17809T / FP

Parameter	Symbol	Min.	Typ.	Max.	Unit
Input voltage	VIN	11.5	−	26	V
Output current	IO	−	−	1	A
BA17812T / FP
Parameter	Symbol	Min.	Typ.	Max.	Unit
Input voltage	VIN	15	−	27	V
Output current	IO	−	−	1	A
BA17818T / FP
Parameter	Symbol	Min.	Typ.	Max.	Unit
Input voltage	VIN	21	−	33	V
Output current	IO	−	−	1	A
BA17824T / FP
Parameter	Symbol	Min.	Typ.	Max.	Unit
Input voltage	VIN	27	−	33	V
Output current	IO	−	−	1	A

BA17810T / FP

Parameter	Symbol	Min.	Typ.	Max.	Unit
Input voltage	VIN	12.5	−	25	V
Output current	IO	−	−	1	A
BA17815T / FP
Parameter	Symbol	Min.	Typ.	Max.	Unit
Input voltage	VIN	17.5	−	30	V
Output current	IO	−	−	1	A
BA17820T / FP
Parameter	Symbol	Min.	Typ.	Max.	Unit
Input voltage	VIN	23	−	33	V
Output current	IO	−	−	1	A

"Electrical characteristics

<BA17805T / FP individual specifications> (unless otherwise noted, Ta=25°C, VIN=10V, IO=500mA)

	Parameter	Symbol	Min.	Typ.	Max.	Unit	Conditions	Measurement
								circuit
	Output voltage 1	VO1	4.8	5.0	5.2	V	IO=500mA	Fig.1
	Output voltage 2	VO2	4.75	−	5.25	V	VIN=7.5 20V, IO=5mA 1A	Fig.1
	Input stability 1	Reg.I1	−	3	100	mV	VIN=7 25V, IO=500mA	Fig.1
	Input stability 2	Reg.I2	−	1	50	mV	VIN=8 12V, IO=500mA	Fig.1
	Ripple rejection ratio	R.R.	62	78	−	dB	eIN=1Vrms, f=120Hz, IO =100mA	Fig.2
	Load regulation 1	Reg.L1	−	15	100	mV	IO=5mA 1A	Fig.1
	Load regulation 2	Reg.L2	−	5	50	mV	IO=250 750mA	Fig.1
	Temperature coefficient of output voltage	TCVO	−	−1.0	−	mV/˚C	IO=5mA, Tj =0 125˚C	Fig.1
	Output noise voltage	Vn	−	40	−	µV	f=10Hz 100kHz	Fig.3
	Minimum I/O voltage differential	Vd	−	2.0	−	V	IO=1A	Fig.4
	Bias current	Ib	−	4.5	8.0	mA	IO=0mA	Fig.5
	Bias current change 1	Ib1	−	−	0.5	mA	IO=5mA 1A	Fig.5
	Bias current change 2	Ib2	−	−	0.8	mA	VIN=8 25V	Fig.5
	Peak output current	IO-P	−	1.7	−	A	Tj=25˚C	Fig.1
	Output short-circuit current	IOS	−	0.6	−	A	VIN =25V	Fig.6

BA178!!T / FP series

Regulator ICs

<BA17806T / FP individual specifications> (unless otherwise noted, Ta=25°C, VIN=11V, IO=500mA)

	Parameter	Symbol	Min.	Typ.	Max.	Unit	Conditions	Measurement
								circuit
	Output voltage 1	VO1	5.75	6.0	6.25	V	IO=500mA	Fig.1
	Output voltage 2	VO2	5.7	−	6.3	V	VIN=8.5 21V, IO=5mA 1A	Fig.1
	Input stability 1	Reg.I1	−	4	120	mV	VIN=8 25V, IO=500mA	Fig.1
	Input stability 2	Reg.I2	−	2	60	mV	VIN=9 13V, IO=500mA	Fig.1
	Ripple rejection ratio	R.R.	59	73	−	dB	eIN=1Vrms, f=120Hz, IO=100mA	Fig.2
	Load regulation 1	Reg.L1	−	16	120	mV	IO=5mA 1A	Fig.1
	Load regulation 2	Reg.L2	−	6	60	mV	IO=250 750mA	Fig.1
	Temperature coefficient of output voltage	TCVO	−	−0.5	−	mV/˚C	IO=5mA, Tj=0 125˚C	Fig.1
	Output noise voltage	Vn	−	60	−	µV	f=10Hz 100kHz	Fig.3
	Minimum I/O voltage differential	Vd	−	2.0	−	V	IO=1A	Fig.4
	Bias current	Ib	−	4.5	8.0	mA	IO=0mA	Fig.5
	Bias current change 1	Ib1	−	−	0.5	mA	IO=5mA 1A	Fig.5
	Bias current change 2	Ib2	−	−	0.8	mA	VIN=8.5 25V	Fig.5
	Peak output current	IO-P	−	1.7	−	A	Tj=25˚C	Fig.1
	Output short-circuit current	IOS	−	0.6	−	A	VIN=25V	Fig.6

<BA17807T / FP individual specifications> (unless otherwise noted, Ta=25°C, VIN=13V, IO=500mA)

	Parameter	Symbol	Min.	Typ.	Max.	Unit	Conditions	Measurement
								circuit
	Output voltage 1	VO1	6.7	7.0	7.3	V	IO=500mA	Fig.1
	Output voltage 2	VO2	6.65	−	7.35	V	VIN=9.5 22V, IO=5mA 1A	Fig.1
	Input stability 1	Reg.I1	−	5	140	mV	VIN=9 25V, IO=500mA	Fig.1
	Input stability 2	Reg.I2	−	2	70	mV	VIN=10 15V, IO=500mA	Fig.1
	Ripple rejection ratio	R.R.	57	69	−	dB	eIN=1Vrms, f=120Hz, IO=100mA	Fig.2
	Load regulation 1	Reg.L1	−	17	140	mV	IO=5mA 1A	Fig.1
	Load regulation 2	Reg.L2	−	6	70	mV	IO=250 750mA	Fig.1
	Temperature coefficient of output voltage	TCVO	−	−0.5	−	mV/˚C	IO=5mA, Tj=0 125˚C	Fig.1
	Output noise voltage	Vn	−	70	−	µV	f=10Hz 100kHz	Fig.3
	Minimum I/O voltage differential	Vd	−	2.0	−	V	IO=1A	Fig.4
	Bias current	Ib	−	4.5	8.5	mA	IO=0mA	Fig.5
	Bias current change 1	Ib1	−	−	0.5	mA	IO=5mA 1A	Fig.5
	Bias current change 2	Ib2	−	−	0.8	mA	VIN=9.5 25V	Fig.5
	Peak output current	IO-P	−	1.7	−	A	Tj=25˚C	Fig.1
	Output short-circuit current	IOS	−	0.6	−	A	VIN=25V	Fig.6