MAX5094A Просмотр технического описания (PDF) - Maxim Integrated

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MAX5094A

High-Performance, Single-Ended, Current-Mode PWM Controllers

Maxim Integrated 

High-Performance, Single-Ended, Current-Mode

PWM Controllers

ELECTRICAL CHARACTERISTICS (continued)

(VCC = +15V, RT = 10kΩ, CT = 3.3nF, REF = open, CREF = 0.1µF, COMP = open, VFB = 2V, CS = GND, TA = TJ = -40°C to +85°C,

unless otherwise noted.) (Note 1)

PARAMETER

ADV_CLK (MAX5095C Only)

ADV_CLK High Voltage

ADV_CLK Low Voltage

ADV_CLK Output Pulse Width

ADV_CLK Rising Edge to OUT

Rising Edge

SYMBOL

CONDITIONS

VADV_CLKH

VADV_CLKL

tPULSE

IADV_CLK = 10mA source

IADV_CLK = 10mA sink

tADV_CLK

MIN TYP MAX UNITS

2.4

3

V

0.4

V

85

ns

110

ns

ADV_CLK Source and Sink

Current

IADV_CLK

10

mA

ELECTRICAL CHARACTERISTICS

(VCC = +15V, RT = 10kΩ, CT = 3.3nF, REF = open, CREF = 0.1µF, COMP = open, VFB = 2V, CS = GND, TA = TJ = -40°C to +125°C,

unless otherwise noted.) (Note 1)

PARAMETER

REFERENCE

Output Voltage

Line Regulation

Load Regulation

Total Output Variation

Reference Output-Noise Voltage

Reference Output Short Circuit

OSCILLATOR

Initial Accuracy

Voltage Stability

Temp Stability

RT/CT Voltage Ramp (P-P)

RT/CT Voltage Ramp Valley

Discharge Current

Frequency Range

ERROR AMPLIFIER (MAX5094)

FB Input Voltage

FB Input Bias Current

Open-Loop Voltage Gain

Unity-Gain Bandwidth

Power-Supply Rejection Ratio

COMP Sink Current

COMP Source Current

COMP Output High Voltage

COMP Output Low Voltage

SYMBOL

CONDITIONS

VREF

∆VLINE

∆VLOAD

VREFT

VNOISE

IS_SC

TA = +25°C, IREF = 1mA

12V ≤ VCC ≤ 25V, IREF = 1mA

1mA ≤ IREF ≤ 20mA

1mA ≤ IREF ≤ 20mA, 12V ≤ VCC ≤ 25V

10Hz ≤ f ≤ 10kHz, TA = +25°C

VREF = 0V

TA = +25°C

12V ≤ VCC ≤ 25V

-40°C ≤ TA ≤ +125°C

VRAMP

VRAMP_VALLEY

IDIS

VRT/CT = 2V, TA = +25°C

VRT/CT = 2V, -40°C ≤ TA ≤ +125°C

fOSC

VFB

IB(FB)

AVOL

fGBW

PSRR

ISINK

ISOURCE

VCOMPH

VCOMPL

FB shorted to COMP

2V ≤ VCOMP ≤ 4V

12V ≤ VCC ≤ 25V (Note 2)

VFB = 2.7V, VCOMP = 1.1V

VFB = 2.3V, VCOMP = 5V

VFB = 2.3V, RCOMP =15kΩ to GND

VFB = 2.7V, RCOMP = 15kΩ to REF

MIN TYP MAX UNITS

4.950 5.000 5.050

V

0.4

4

mV

6

25

mV

4.9

5.1

V

50

µV

-30

-100 -180

mA

51

54

57

kHz

0.2

0.5

%

1

%

1.7

V

1.1

V

7.9

8.3

8.7

mA

7.5

8.3

9.0

20

1000 kHz

2.465

60

2

-0.5

5

2.5

-0.01

100

1

80

6

-1.2

5.8

0.1

2.535

-0.1

-1.8

1.1

V

µA

dB

MHz

dB

mA

mA

V

V

4 _______________________________________________________________________________________

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