MIC9131

Micrel

MIC9131

4

July 2001

Parameter

Condition

Min

Typ

Max

Units

Preregulator

Input Leakage Current

V

0.1

10

µA

V

7.2

7.5

V

V

V

700

800

mV

(

∆V

V

V

GLO(ON)

V

7.7

+0.5V

V

V

500

700

mV

(

∆V

Start-up Current

V

912

mA

Supply

Supply Current, I

VCC

Pin 16 (OUT) = OPEN

1

1.3

mA

Enable Input Current

V

–10

0.1

10

µA

Shutdown Supply Current

V

0.1

10

µA

Protection and Control

Current Limit Threshold Voltage

0.772

0.83

0.888

V

Current Limit Delay to Output

V

34

ns

Current Limit Source Current

V

30

40

50

µA

Enable Input Threshold (Turn-on)

1

1.6

2.2

V

Enable Input Hysteresis

150

mV

CPWR Input Current

V

–1+1

µA

CPWR Threshold

1.6

V

Soft-Start Current

V

2.5

4

6

µA

Line UVLO Threshold (Turn-on)

1.16

1.22

1.28

V

Line UVLO Threshold Hysteresis

140

mV

Thermal Shutdown

145

°C

Thermal Shutdown Hysteresis

25

°C

MOSFET Driver

Output Minimum On-Time

V

0

ns

Output Driver Impedance

SOURCE ; I

8

12

Ω

SINK ; I

4

6

Ω

Rise Time

C

12

ns

Fall Time

C

8

ns

Note 1.

Exceeding the absolute maximum rating may damage the device.

Note 2.

The device is not guaranteed to function outside its operating rating.

Note 3.

Devices are ESD sensitive. Handling precautions recommended.

Note 4.

If a substained DC voltage >150V is applied to the LINE pin, a current-limiting 1.8k

Ωresistor should be used in series with the LINE pin. This

condition does not apply for transient conditions over 150V.

Note 5.

For oscillator frequencies above 2.5MHz it may be necessary to power to VBIAS pin from an external power source due to the current

limitations of the internal 5V regulator. See

Applications Information for details.