ML4800

PRODUCT SPECIFICATION

4

REV. 1.0.5 9/25/01

Input Bias Current

-0.5

-1.0

µA

Output High Voltage

6.0

6.7

V

Output Low Voltage

0.65

1.0

V

Source Current

VIN = ±0.5V, VOUT = 6V

-40

-104

µA

Sink Current

VIN = ±0.5V, VOUT = 1.5V

40

160

µA

Open Loop Gain

60

70

dB

Power Supply Rejection Ratio

11V < VCC < 16.5V

60

75

dB

OVP Comparator

Threshold Voltage

2.65

2.75

2.85

V

Hysteresis

175

250

325

mV

Tri-Fault Detect

Fault Detect HIGH

2.65

2.75

2.85

V

Time to Fault Detect HIGH

VFB = VFAULT DETECT LOW to

VFB = OPEN. 470pF from VFB to

GND

24

ms

Fault Detect LOW

0.4

0.5

0.6

V

PFC ILIMIT Comparator

Threshold Voltage

-0.9

-1.0

-1.1

V

(PFC ILIMIT VTH - Gain

Modulator Output)

120

220

mV

Delay to Output

150

300

ns

DC ILIMIT Comparator

Threshold Voltage

0.95

1.0

1.05

V

Input Bias Current

±0.3

±1

µA

Delay to Output

150

300

ns

VIN OK Comparator

Threshold Voltage

2.35

2.45

2.55

V

Hysteresis

0.8

1.0

1.2

V

GAIN Modulator

Gain (Note 3)

IAC = 100µA, VRMS = VFB = 0V

0.60

0.80

1.05

IAC = 50µA, VRMS = 1.2V, VFB = 0V

1.8

2.0

2.40

IAC = 50µA, VRMS = 1.8V, VFB = 0V

0.85

1.0

1.25

IAC = 100µA, VRMS = 3.3V, VFB = 0V

0.20

0.30

0.40

Bandwidth

IAC = 100µA

10

MHz

Output Voltage

IAC = 350µA, VRMS = 1V, VFB = 0V

0.60

0.75

0.9

V

Oscillator

Initial Accuracy

TA = 25°C

71

76

81

kHz

Voltage Stability

11V < VCC < 16.5V

1

%

Temperature Stability

2

%

Total Variation

Line, Temp

68

84

kHz

Ramp Valley to Peak Voltage

2.5

V

Electrical Characteristics (Continued)

Unless otherwise specified, VCC = 15V, RT = 52.3kΩ, CT = 470pF, TA = Operating Temperature Range (Note 1)

Symbol

Parameter

Conditions

Min.

Typ.

Max. Units