MIC9131BQS datasheet(5/20 Pages) MICREL

Part #	MIC9131BQS

Description	High-Voltage, High-Speed Telecom DC-to-DC Controller

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Manufacturer	MICREL [Micrel Semiconductor]

Direct Link	http://www.micrel.com

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5 / 20 page

July 2001

5

MIC9131

Micrel

Typical Characteristics

-0.5

-0.4

-0.3

-0.2

-0

0.0

0.1

0.2

0.3

8

9 10 11 12 13 14 15 16 17 18

V

CC (V)

Oscillator Frequency

vs. V

CC

Voltage

F

OSC(NOM)=200kHz

R

t

=9.47K

Ct=470pF

-2.5

-2

-1.5

-1

-0.5

0

0.5

1

1.5

2

-40

0

40

80

120

160

TEMPERATURE (

°C)

Oscillator Frequency

vs. Temperature

V

CC = 10V

R

BIAS = 560K

R

t

= 9.47K

C

t

= 470pF

2.499

2.500

2.501

2.502

8

9 10 11 12 13 14 15 16 17 18

V

CC (V)

Error Amp Reference Voltage

vs. V

CC

Voltage

R

BIAS = 560K

2.480

2.485

2.490

2.495

2.500

2.505

2.510

-40 -20 0 20 40 60 80 100120140

TEMPERATURE (

°C)

Error Amp Reference Voltage

vs. Temperature

V

CC

= 10V

R

BIAS = 560K

1.180

1.185

1.190

1.195

1.200

1.205

1.210

1.215

1.220

8

9 10 11 12 13 14 15 16 17 18

V

CC

(V)

Line UVLO Threshold

vs. V

CC

1.18

1.19

1.2

1.21

1.22

1.23

1.24

-40

0

40

80

120

160

TEMPERATURE (

°C)

Line UVLO Threshold

vs. Temperature

V

CC=10V

R

BIAS=560K

1.0

1.2

1.4

1.6

1.8

2.0

2.2

2.4

8

1012141618

V

CC (V)

Quiescent Current

vs. V

CC

Voltage

R

BIAS

= 560K

R

t

= 9.47K

C

t

= 470pF

1.3

1.32

1.34

1.36

1.38

1.4

1.42

1.44

1.46

1.48

1.5

-40 -20 0 20 40 60 80 100120140

TEMPERATURE (

°C)

Quiescent Current

vs. Temperature

V

CC = 10V

R

BIAS = 560K

R

t

= 9.47K

C

t

= 470pF

0

1

2

3

4

5

6

7

8

9

10

GATE DRIVE FREQUENCY (kHz)

Quiescent Current

vs. Frequency

C

t

= 100pF

C

t

= 470pF

0.5

1

1.5

2

2.5

3

3.5

0

200 400 600 800 1000 1200

R

BIAS (kΩ)

Quiescent Current

vs. R

BIAS

V

CC = 10V

R

t

= 9.53K

C

t

= 470pf

f

OSC = 200kHz

0

10

20

30

40

50

60

70

80

90

0

200 400 600 800 1000 1200

R

BIAS

(k

Ω)

ISNS to Gate Output Delay

vs. R

BIAS

0

20

40

60

80

100

120

140

160

180

200

OVERDRIVE (mV)

ISNS to Gate Output Delay

vs. Overdrive

R

BIAS=160K

R

BIAS=560K

R

BIAS=360K

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