LM2931 Series

4

MOTOROLA ANALOG IC DEVICE DATA

Ch

i i

Sb l

LM2931–5.0

LM2931A–5.0

Ui

Characteristic

Symbol

Min

Typ

Max

Min

Typ

Max

Unit

FIXED OUTPUT

Ripple Rejection (f = 120 Hz)

RR

60

90

–

60

90

–

dB

Dropout Voltage

VI–VO

V

IO = 10 mA

–

0.015

0.2

–

0.015

0.2

IO = 100 mA

–

0.16

0.6

–

0.16

0.6

Over–Voltage Shutdown Threshold

Vth(OV)

26

29.5

40

26

29.5

40

V

Output Voltage with Reverse Polarity Input (Vin = –15 V)

–VO

– 0.3

0

–

– 0.3

0

–

V

LM2931C

LM2931AC

Characteristic

Symbol

Min

Typ

Max

Min

Typ

Typ

Unit

ADJUSTABLE OUTPUT

Reference Voltage (Note 2, Figure 18)

Vref

V

IO = 10 mA, TJ = 25°C

1.14

1.20

1.26

1.17

1.20

1.23

IO ≤ 100 mA, TJ = – 40 to +125°C

1.08

–

1.32

1.15

–

1.25

Output Voltage Range

VOrange

3.0 to

24

2.7 to

29.5

–

3.0 to

24

2.7 to

29.5

–

V

Line Regulation (Vin = VO + 0.6 V to 26 V)

Regline

–

0.2

1.5

–

0.2

1.5

mV/V

Load Regulation (IO = 5.0 mA to 100 mA)

Regload

–

0.3

1.0

–

0.3

1.0

%/V

Output Impedance

ZO

m

Ω/V

IO = 10 mA, ∆IO = 1.0 mA, f = 10 Hz to 10 kHz

–

40

–

–

40

–

Bias Current

IB

mA

IO = 100 mA

–

6.0

–

–

6.0

–

IO = 10 mA

–

0.4

1.0

–

0.4

1.0

Output Inhibited (Vth(OI) = 2.5 V)

–

0.2

1.0

–

0.2

1.0

Adjustment Pin Current

IAdj

–

0.2

–

–

0.2

–

µA

Output Noise Voltage (f = 10 Hz to 100 kHz)

Vn

–

140

–

–

140

–

µVrms/V

Long–Term Stability

S

–

0.4

–

–

0.4

–

%/kHR

Ripple Rejection (f = 120 Hz)

RR

0.10

0.003

–

0.10

0.003

–

%/V

Dropout Voltage

VI–VO

V

IO = 10 mA

–

0.015

0.2

–

0.015

0.2

IO = 100 mA

–

0.16

0.6

–

0.16

0.6

Over–Voltage Shutdown Threshold

Vth(OV)

26

29.5

40

26

29.5

40

V

Output Voltage with Reverse Polarity Input (Vin = –15 V)

–VO

– 0.3

0

–

–0.3

0

–

V

Output Inhibit Threshold Voltages

Vth(OI)

V

Output “On”:

TJ = 25°C

–

2.15

1.90

–

2.15

1.90

TJ = – 40° to +125°C

–

–

1.20

–

–

1.20

Output “Off”:

TJ = 25°C

2.50

2.26

–

2.50

2.26

–

TJ = – 40° to +125°C

3.25

–

–

3.25

–

–

Output Inhibit Threshold Current (Vth(OI) = 2.5 V)

Ith(OI)

–

30

50

–

30

50

µA

NOTES: 1. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient as possible.

2. The reference voltage on the adjustable device is measured from the output to the adjust pin across R1.