MC7900

7

MOTOROLA ANALOG IC DEVICE DATA

MC7918C

Characteristics

Symbol

Min

Typ

Max

Unit

Output Voltage (TJ = +25°C)

VO

–17.3

–18

–18.7

Vdc

Line Regulation (Note 1)

(TJ = +25°C, IO = 100 mA)

–21 Vdc

≥ VI ≥ –33 Vdc

–24 Vdc

≥ VI ≥ –30 Vdc

(TJ = +25°C, IO = 500 mA)

–21 Vdc

≥ VI ≥ –33 Vdc

–24 Vdc

≥ VI ≥ –30 Vdc

Regline

–

–

–

–

25

10

90

50

180

90

360

180

mV

Load Regulation, TJ = +25°C (Note 1)

5.0 mA

≤ IO ≤ 1.5 A

250 mA

≤ IO ≤ 750 mA

Regload

–

–

110

55

360

180

mV

Output Voltage

– 21 Vdc

≥ VI ≥ –33 Vdc, 5.0 mA ≤ IO ≤ 1.0 A, P ≤ 15 W

VO

–17.1

–

–18.9

Vdc

Input Bias Current (TJ = +25°C)

IIB

–

4.5

8.0

mA

Input Bias Current Change

–21 Vdc

≥ VI ≥ –33 Vdc

5.0 mA

≤ IO ≤ 1.5 A

∆IIB

–

–

–

–

1.0

0.5

mA

Output Noise Voltage (TA = +25°C, 10 Hz ≤ f ≤ 100 kHz)

Vn

–

110

–

µV

Ripple Rejection (IO = 20 mA, f = 120 Hz)

RR

–

59

–

dB

Dropout Voltage

IO = 1.0 A, TJ = +25°C

VI–VO

–

2.0

–

Vdc

Average Temperature Coefficient of Output Voltage

IO = 5.0 mA, 0°C ≤ TJ ≤ +125°C

∆VO/∆T

–

–1.0

–

mV/

°C

MC7924C

Characteristics

Symbol

Min

Typ

Max

Unit

Output Voltage (TJ = +25°C)

VO

–23

–24

–25

Vdc

Line Regulation (Note 1)

(TJ = +25°C, IO = 100 mA)

– 27 Vdc

≥ VI ≥ –38 Vdc

– 30 Vdc

≥ VI ≥ –36 Vdc

(TJ = +25°C, IO = 500 mA)

– 27 Vdc

≥ VI ≥ –38 Vdc

– 30 Vdc

≥ VI ≥ –36 Vdc

Regline

–

–

–

–

31

14

118

70

240

120

470

240

mV

Load Regulation, TJ = +25°C (Note 1)

5.0 mA

≤ IO ≤ 1.5 A

250 mA

≤ IO ≤ 750 mA

Regload

–

–

150

85

480

240

mV

Output Voltage

– 27 Vdc

≥ VI ≥ –38 Vdc, 5.0 mA ≤ IO ≤ 1.0 A, P ≤ 15 W

VO

– 22.8

–

– 25.2

Vdc

Input Bias Current (TJ = +25°C)

IIB

–

4.6

8.0

mA

Input Bias Current Change

– 27 Vdc

≥ VI ≥ –38 Vdc

5.0 mA

≤ IO ≤ 1.5 A

∆IIB

–

–

–

–

1.0

0.5

mA

Output Noise Voltage (TA = +25°C, 10 Hz ≤ f ≤ 100 kHz)

Vn

–

170

–

µV

Ripple Rejection (IO = 20 mA, f = 120 Hz)

RR

–

56

–

dB

Dropout Voltage

IO = 1.0 A, TJ = +25°C

VI–VO

–

2.0

–

Vdc

Average Temperature Coefficient of Output Voltage

IO = 5.0 mA, 0°C ≤ TJ ≤ +125°C

∆VO/∆T

–

–1.0

–

mV/

°C

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