ML4818 View Datasheet(PDF) - Micro Linear Corporation

Part Name

Description

Manufacturer

ML4818

Phase modulation /soft switching controller

Micro Linear Corporation 

ML4818

ELECTRICAL CHARACTERISTICS (Continued)

PARAMETER

CONDITIONS

MIN

ERROR AMPLIFIER (Continued)

Output Sink Current

VEA OUT = 1V

1

Output Source Current

VEA OUT = 5.1V

–0.5

Output High Voltage

IEA OUT = –0.5mA

5.0

Output Low Voltage

IEA OUT = 1mA

Unity Gain Bandwidth

2.0

Slew Rate

8.5

PHASE MODULATOR

RAMP Bias Current

VRAMP = 2.5V

EA OUT Zero DC Threshold

VRAMP = 0V

0.4

tPD, RAMP to Output

tDELAY

CL = 1nF

99

RDELAY Voltage

4

SOFT START

Charge Current

VSOFT START = 4V

–15

Discharge Current

VSOFT START = 1V

10

CURRENT LIMIT/SHUTDOWN

ILIM Bias Current

Current Limit Threshold

tPD, ILIM

RCRESET Shutdown Threshold

RCRESET Restart Threshold

RCRESET Charging Current

SHUTDOWN Threshold

0V < VILIM < 4V

VSHUTDOWN = 0V

VILIM =2V, VRCRESET = 1.5V

–10

0.92

50

3.15

1.0

–400

2.0

SHUTDOWN Input Bias Current

VSHUTDOWN = 0

–100

OUTPUT

Output Low Level

Output High Level

Rise/Fall Time

UNDER-VOLTAGE LOCKOUT

IOUT = 20mA

IOUT = 200mA, TA = 25°C

IOUT = –20mA

IOUT = –200mA, TA = 25°C

CL = 1000pF

12.0

11.0

Start Threshold

15.5

Stop Threshold

9.25

SUPPLY

Start Up Current

VCC < 15.8V

ICC

VINV = 4V, VRAMP = VILIM = 0V,

CL = 1nF, TA = 25°C (Note 2)

Note 1: Limits are guaranteed by 100% testing, sampling, or correlation with worst-case test conditions.

Note 2: VCC must be brought above the UVLO start voltage (17.2V) before dropping to VCC = 15V to ensure start-up.

4

TYP.

MAX

UNITS

3.2

mA

–2.2

–20

mA

5.5

6.0

V

0.8

V

2.8

MHz

V/µs

–1

–10

µA

0.6

0.9

V

50

80

ns

200

250

ns

4.3

5

V

–25

–30

µA

20

30

mA

–1

10

µA

1.02

1.12

V

ns

3.4

3.65

V

1.3

1.6

V

–523

–1000

µA

2.4

2.8

V

–25

10

µA

0.1

0.4

V

0.7

2.8

V

13.5

V

13.0

V

50

75

ns

16.5

17.2

V

10.2

10.7

V

3

4

mA

60

70

mA

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