Datasheet MC79M15CDT-1, MC79M15CDTRK, MC79M15CT, MC79M15CDT, MC79M15BDT-1 Datasheet (Motorola)

 

T

40° t

125°C

4.0%

T

125°C

 

Order this document by MC79M00/D





The MC79M00 series of fixed output negative voltage regulators are

intended as complements to the popular MC78M00 series devices.

Available in fixed output voltage options of –5.0, –8.0, –12 and –15 V,
these regulators employ current limiting, thermal shutdown, and safe–area
compensation – making them remarkably rugged under most operating
conditions. With adequate heatsinking they can deliver output currents in
excess of 0.5 A.

• No External Components Required

• Internal Thermal Overload Protection

• Internal Short Circuit Current Limiting

• Output Transistor Safe–Area Compensation

• Also Available in Surface Mount DPAK (DT) Package

DEVICE TYPE/NOMINAL OUTPUT VOLTAGE

MC79M05
MC79M08

Device

MC79MXXBDT, BDT–1
MC79MXXBT

MC79MXXCDT, CDT–1
MC79MXXCT

XX indicates nominal voltage.

–5.0 V
–8.0 V

MC79M12
MC79M15

ORDERING INFORMATION

Output

Voltage

Tolerance

Operating

Temperature Range Package

°

= –

J

°

= 0° to +

J

o +

°

°

–12 V
–15 V

DPAK

Plastic Power

DPAK

Plastic Power

THREE–TERMINAL

NEGATIVE FIXED

VOLTAGE REGULATORS

T SUFFIX

PLASTIC PACKAGE

CASE 221A

Heatsink surface

connected to Pin 2.

1

2

Pin 1. Ground

2. Input

3. Output

1

3

DT SUFFIX

PLASTIC PACKAGE

CASE 369A

(DPAK)

3

1

2

3

DT–1 SUFFIX

PLASTIC PACKAGE

CASE 369

(DPAK)

Representative Schematic Diagram

4.9 k

2.0 k

2.0 k

2.0 k

20 k 20 k

3.6 k

2.4 k

14.7 k

25

12 k

1.2 k

1.0 k

1.1 k

This device contains 31 active transistors.

MOTOROLA ANALOG IC DEVICE DATA

11.5 k5472.0 k

20 pF

10 k

10 pF

100

4.0 k

10 k

240

750

R1

R2

Gnd

V

0.3

V

Heatsink surface (shown as terminal 4 in

case outline drawing) is connected to Pin 2.

STANDARD APPLICATION

Input

Cin*

µ

F

0.33

O

I

A common ground is required between the input
and the output voltages. The input voltage must
remain typically 1.1 V more negative even during
the high point of the input ripple voltage.

These two digits of the type number indicate

XX,

nominal voltage.
Cin is required if regulator is located an

*

appreciable distance from power supply filter.
CO improve stability and transient response.

**

 Motorola, Inc. 1996 Rev 4

MC79MXX

Output

CO**

1.0

µ

F

1

MC79M00

MAXIMUM RATINGS (T

= 25°C, unless otherwise noted.)

A

Rating Symbol Value Unit

Input Voltage V
Power Dissipation

Case 221A

TA = 25°C P
Thermal Resistance, Junction–to–Ambient θ
Thermal Resistance, Junction–to–Case θ

Case 369 and 369A (DPAK)

TA = 25°C P
Thermal Resistance, Junction–to–Ambient θ
Thermal Resistance, Junction–to–Case θ

Storage Junction Temperature T
Junction Temperature T

NOTE: ESD data available upon request.

THERMAL CHARACTERISTICS

Characteristic Symbol Value Unit

Thermal Resistance, Junction–to–Ambient R
Thermal Resistance, Junction–to–Case R

I

D

JA

JC

D
JA
JC

stg

J

θJA
θJC

–35 Vdc

Internally Limited W

65 °C/W

5.0 °C/W

Internally Limited W

92 °C/W

6.0 °C/W

–65 to +150 °C

150 °C

65 °C/W

5.0 °C/W

MC79M05B, C
ELECTRICAL CHARACTERISTICS (V

Characteristic

Output Voltage (TJ = 25°C) V
Line Regulation, TJ = 25°C (Note 1)

–7.0 Vdc ≥ VI ≥ –25 Vdc
–8.0 Vdc ≥ VI ≥ –18 Vdc

Load Regulation, TJ = 25°C (Note 1)

5.0 mA ≤ IO ≤ 500 mA

Output Voltage

–7.0 Vdc ≥ VI ≥ –25 Vdc, 5.0 mA ≤ IO ≤ 350 mA
Input Bias Current (TJ = 25°C) I
Input Bias Current Change

–8.0 Vdc ≥ VI ≥ –25 Vdc, IO = 350 mA

5.0 mA ≤ IO ≤ 350 mA, VI = –10 V
Output Noise Voltage, TA = 25°C, 10 Hz ≤ f ≤ 100 kHz V
Ripple Rejection (f = 120 Hz) RR 54 66 – dB
Dropout Voltage

IO = 500 mA, TJ = 25°C

Average Temperature Coefficient of Output Voltage

IO = 5.0 mA, 0°C ≤ TJ ≤ 125°C

NOTES: 1. Load and line regulation are specified at constant temperature. Change in VO due to heating effects must be taken into account separately. Pulse

testing with low duty cycle is used.

2.B = T
C = T

low
low

to T

, –40°C < TJ < 125°C

high

to T

, 0°C < TJ < 125°C

high

= –10 V, IO = 350 mA, T

I

low

to T

[Note 2], unless otherwise noted.)

high

Symbol Min Typ Max Unit

–4.8 –5.0 –5.2 Vdc

–

Reg

O

line

–

Reg

∆I

V

load

O

IB

IB

– 30 100

–4.75 – –5.25

– 4.3 8.0 mA

–
–

– 40 – µV

– 1.1 –

VI–V

n

O

∆VO/∆T

– 0.2 –

7.0

2.0

50
30

Vdc

–
–

0.4

0.4

Vdc

mV/°C

mV

mV

mA

2

MOTOROLA ANALOG IC DEVICE DATA

MC79M00

MC79M08B, C
ELECTRICAL CHARACTERISTICS (V

Characteristic

Output Voltage (TJ = 25°C) V
Line Regulation, TJ = 25°C (Note 1)

–7.0 Vdc ≥ VI ≥ –25 Vdc
–8.0 Vdc ≥ VI ≥ –18 Vdc

Load Regulation, TJ = 25°C (Note 1)

5.0 mA ≤ IO ≤ 500 mA

Output Voltage

–7.0 Vdc ≥ VI ≥ –25 Vdc, 5.0 mA ≤ IO ≤ 350 mA
Input Bias Current (TJ = 25°C) I
Input Bias Current Change

–8.0 Vdc ≥ VI ≥ –25 Vdc, IO = 350 mA

5.0 mA ≤ IO ≤ 350 mA, VI = –10 V
Output Noise Voltage, TA = 25°C, 10 Hz ≤ f ≤ 100 kHz V
Ripple Rejection (f = 120 Hz) RR 54 63 – dB
Dropout Voltage

IO = 500 mA, TJ = 25°C

Average Temperature Coefficient of Output Voltage

IO = 5.0 mA, 0°C ≤ TJ ≤ 125°C

= –10 V, IO = 350 mA, T

I

low

to T

[Note 2], unless otherwise noted.)

high

Symbol Min Typ Max Unit

–7.7 –8.0 –8.3 Vdc

–

Reg

O

line

–

Reg

∆I

V

load

O

IB

IB

– 30 100

–7.6 –8.0 –8.4

– – 8.0 mA

–
–

– 60 – µV

– 1.1 –

VI–V

n

O

∆VO/∆T

– 0.4 –

5.0

3.0

80
50

–
–

0.4

0.4

mV/°C

mV

mV

Vdc

mA

Vdc

MC79M12B, C
ELECTRICAL CHARACTERISTICS

Output Voltage (TJ = 25°C) V
Line Regulation, TJ = 25°C (Note 1)

–14.5 Vdc ≥ VI ≥ –30 Vdc
–15 Vdc ≥ VI ≥ –25 Vdc

Load Regulation, TJ = 25°C (Note 1)

5.0 mA ≤ IO ≤ 500 mA
Output Voltage

–14.5 Vdc ≥ VI ≥ –30 Vdc, 5.0 mA ≤ IO ≤ 350 mA
Input Bias Current (TJ = 25°C) I
Input Bias Current Change

–14.5 Vdc ≥ VI ≥ –30 Vdc, IO = 350 mA

5.0 mA ≤ IO ≤ 350 mA, VI = –19 V
Output Noise Voltage, TA = 25°C, 10 Hz ≤ f ≤ 100 kHz V
Ripple Rejection (f = 120 Hz) RR 54 60 – dB
Dropout Voltage

IO = 500 mA, TJ = 25°C

Average Temperature Coefficient of Output Voltage

IO = 5.0 mA, 0°C ≤ TJ ≤ 125°C

NOTES: 1. Load and line regulation are specified at constant temperature. Change in VO due to heating effects must be taken into account separately. Pulse

testing with low duty cycle is used.

2.B = T
C = T

low
low

to T

, –40°C < TJ < 125°C

high

to T

, 0°C < TJ < 125°C

high

(VI = –19 V, IO = 350 mA, T

Characteristic

low

to T

[Note 2], unless otherwise noted.)

high

Symbol Min Typ Max Unit

–11.5 –12 –12.5 Vdc

–

Reg

O

line

–

Reg

∆I

V

load

O

IB

IB

– 30 240

–11.4 – –12.6

– 4.4 8.0 mA

–
–

– 75 – µV

– 1.1 –

VI–V

n

O

∆VO/∆T

– –0.8 –

5.0

3.0

80
50

Vdc

–
–

0.4

0.4

Vdc

mV/°C

mV

mV

mA

MOTOROLA ANALOG IC DEVICE DATA

3

MC79M00

MC79M15B, C
ELECTRICAL CHARACTERISTICS (V

Characteristic

Output Voltage (TJ = 25°C) V
Line Regulation, TJ = 25°C (Note 1)

–17.5 Vdc ≥ VI ≥ –30 Vdc
–18 Vdc ≥ VI ≥ –28 Vdc

Load Regulation, TJ = 25°C (Note 1)

5.0 mA ≤ IO ≤ 500 mA

Output Voltage

–17.5 Vdc ≥ VI ≥ –30 Vdc, 5.0 mA ≤ IO ≤ 350 mA
Input Bias Current (TJ = 25°C) I
Input Bias Current Change

–17.5 Vdc ≥ VI ≥ –30 Vdc, IO = 350 mA

5.0 mA ≤ IO ≤ 350 mA, VI = –23 V
Output Noise Voltage, TA = 25°C, 10 Hz ≤ f ≤ 100 kHz V
Ripple Rejection (f = 120 Hz) RR 54 60 – dB
Dropout Voltage

IO = 500 mA, TJ = 25°C

Average Temperature Coefficient of Output Voltage

IO = 5.0 mA, 0°C ≤ TJ ≤ 125°C

NOTES: 1. Load and line regulation are specified at constant temperature. Change in VO due to heating effects must be taken into account separately. Pulse

testing with low duty cycle is used.

2.B = T
C = T

low
low

to T

, –40°C < TJ < 125°C

high

to T

, 0°C < TJ < 125°C

high

= –23 V, IO = 350 mA, T

I

low

to T

[Note 2], unless otherwise noted.)

high

Symbol Min Typ Max Unit

–14.4 –15 –15.6 Vdc

–

Reg

O

line

–

Reg

∆I

V

load

O

IB

IB

– 30 240

–14.25 – –15.75

– 4.4 8.0 mA

–
–

– 90 – µV

– 1.1 –

VI–V

n

O

∆VO/∆T

– –1.0 –

5.0

3.0

80
50

Vdc

–
–

0.4

0.4

Vdc

mV/°C

mV

mV

mA

Figure 1. DP AK Thermal Resistance and Maximum

Power Dissipation versus P.C.B. Copper Length

100

90

°

80

70

60

JA

JUNCTION-TO-AIR ( C/W)

θ

R , THERMAL RESISTANCE

50

40

010203025155.0

Free Air

Mounted

Vertically

Minimum
Size Pad

L, LENGTH OF COPPER (mm)

P

D(max)

R

θ

for TA = 50°C

2.0 oz. Copper

L

JA

2.4

2.0

L

1.6

1.2

0.8

0.4

, MAXIMUM POWER DISSIPATION (W)

D

P

0

4

MOTOROLA ANALOG IC DEVICE DATA

MC79M00

OUTLINE DIMENSIONS

T SUFFIX

PLASTIC PACKAGE

CASE 221A–06

ISSUE Y

SEATING

–T–

PLANE

B

4

Q

123

F

T

A

U

C

S

H

K

Z

L

V

R
J

G

D

N

NOTES:

1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.

2. CONTROLLING DIMENSION: INCH.

3. DIMENSION Z DEFINES A ZONE WHERE ALL
BODY AND LEAD IRREGULARITIES ARE
ALLOWED.

DIM MIN MAX MIN MAX

A 0.570 0.620 14.48 15.75
B 0.380 0.405 9.66 10.28
C 0.160 0.190 4.07 4.82
D 0.025 0.035 0.64 0.88
F 0.142 0.147 3.61 3.73
G 0.095 0.105 2.42 2.66
H 0.110 0.155 2.80 3.93
J 0.018 0.025 0.46 0.64
K 0.500 0.562 12.70 14.27
L 0.045 0.060 1.15 1.52
N 0.190 0.210 4.83 5.33
Q 0.100 0.120 2.54 3.04
R 0.080 0.110 2.04 2.79
S 0.045 0.055 1.15 1.39
T 0.235 0.255 5.97 6.47
U 0.000 0.050 0.00 1.27
V 0.045 ––– 1.15 –––
Z ––– 0.080 ––– 2.04

MILLIMETERSINCHES

DT SUFFIX

PLASTIC PACKAGE

CASE 369A–13

(DPAK)

ISSUE Y

NOTES:

SEATING

–T–

PLANE

B

V

S

R

4

A

123

K

F

L

D

2 PL

G

0.13 (0.005) T

C

E

Z

U

J

H

M

1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.

2. CONTROLLING DIMENSION: INCH.

DIM MIN MAX MIN MAX

A 0.235 0.250 5.97 6.35
B 0.250 0.265 6.35 6.73
C 0.086 0.094 2.19 2.38
D 0.027 0.035 0.69 0.88
E 0.033 0.040 0.84 1.01
F 0.037 0.047 0.94 1.19
G 0.180 BSC 4.58 BSC
H 0.034 0.040 0.87 1.01
J 0.018 0.023 0.46 0.58
K 0.102 0.114 2.60 2.89
L 0.090 BSC 2.29 BSC
R 0.175 0.215 4.45 5.46
S 0.020 0.050 0.51 1.27
U 0.020 ––– 0.51 –––
V 0.030 0.050 0.77 1.27
Z 0.138 ––– 3.51 –––

MILLIMETERSINCHES

MOTOROLA ANALOG IC DEVICE DATA

5

MC79M00

OUTLINE DIMENSIONS

DT–1 SUFFIX

PLASTIC PACKAGE

CASE 369–07

(DPAK)

ISSUE K

V

–T–

SEATING
PLANE

S

F

B
R

4

123

G

A

K

3 PL

D

0.13 (0.005) T

C

E

J

H

M

NOTES:

1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.

2. CONTROLLING DIMENSION: INCH.

DIM MIN MAX MIN MAX

A 0.235 0.250 5.97 6.35
B 0.250 0.265 6.35 6.73
C 0.086 0.094 2.19 2.38
D 0.027 0.035 0.69 0.88
E 0.033 0.040 0.84 1.01
F 0.037 0.047 0.94 1.19

0.090 BSC 2.29 BSC

G
H 0.034 0.040 0.87 1.01

J 0.018 0.023 0.46 0.58
K 0.350 0.380 8.89 9.65
R 0.175 0.215 4.45 5.46
S 0.050 0.090 1.27 2.28
V 0.030 0.050 0.77 1.27

MILLIMETERSINCHES

6

MOTOROLA ANALOG IC DEVICE DATA

MC79M00

Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty , representation or guarantee regarding
the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and
specifically disclaims any and all liability, including without limitation consequential or incidental damages. “T ypical” parameters which may be provided in Motorola
data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals”
must be validated for each customer application by customer’s technical experts. Motorola does not convey any license under its patent rights nor the rights of
others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other
applications intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury
or death may occur. Should Buyer purchase or use Motorola products for any such unintended or unauthorized application, Buyer shall indemnify and hold Motorola
and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees
arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that
Motorola was negligent regarding the design or manufacture of the part. Motorola and are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal
Opportunity/Affirmative Action Employer.

MOTOROLA ANALOG IC DEVICE DATA

7

MC79M00

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8

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MOTOROLA ANALOG IC DEVICE DATA

MC79M00/D

*MC79M00/D*