MAX5038A 데이터 시트보기 (PDF) - Maxim Integrated

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MAX5038A

Dual-Phase, Parallelable, Average-Current-Mode Controllers

Maxim Integrated 

Dual-Phase, Parallelable, Average-Current-Mode

Controllers

ELECTRICAL CHARACTERISTICS (continued)

(VCC = +5V, circuit of Figure 1, TA = -40°C to +85°C, unless otherwise noted. Typical specifications are at TA = +25°C.) (Note 1)

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX UNITS

CLKOUT Phase Shift

(at fSW = 125kHz)

φCLKOUT

PHASE = VCC

PHASE = unconnected

PHASE = SGND

115

120

125

85

90

95 Degrees

55

60

65

CLKIN Input Pulldown Current

CLKIN High Threshold

CLKIN Low Threshold

CLKIN High Pulse Width

PHASE High Threshold

PHASE Low Threshold

PHASE Input Bias Current

ICLKIN

VCLKINH

VCLKINL

tCLKIN

VPHASEH

VPHASEL

IPHASEBIA

3

5

7

µA

2.4

V

0.8

V

200

ns

4

V

1

V

-50

+50

µA

CLKOUT Output Low Level

CLKOUT Output High Level

CURRENT LIMIT

VCLKOUTL ISINK = 2mA (Note 2)

VCLKOUTH ISOURCE = 2mA (Note 2)

100

mV

4.5

V

Average Current-Limit Threshold

Reverse Current-Limit Threshold

Cycle-by-Cycle Current Limit

VCL

VCLR

VCLPK

CSP_ to CSN_

CSP_ to CSN_

CSP_ to CSN_ (Note 3)

45

48

51

mV

-3.9

-0.2

mV

90

112

130

mV

Cycle-by-Cycle Overload

Response Time

tR

VCSP_ to VCSN_ = +150mV

260

ns

CURRENT-SENSE AMPLIFIER

CSP_ to CSN_ Input Resistance

RCS_

Common-Mode Range

VCMR(CS)

Input Offset Voltage

VOS(CS)

Amplifier Gain

AV(CS)

3dB Bandwidth

f3dB

CURRENT-ERROR AMPLIFIER (TRANSCONDUCTANCE AMPLIFIER)

4

kΩ

-0.3

+3.6

V

-1

+1

mV

18

V/V

4

MHz

Transconductance

gmca

Open-Loop Gain

AVOL(CE) No load

DIFFERENTIAL VOLTAGE AMPLIFIER (DIFF)

550

µS

50

dB

Common-Mode Voltage Range

DIFF Output Voltage

Input Offset Voltage

VCMR(DIFF)

VCM

VSENSE+ = VSENSE- = 0

VOS(DIFF)

-0.3

+1.0

V

0.6

V

-1

+1

mV

Amplifier Gain

MAX5038A (+1.2V, +1.5V, +1.8V output

AV(DIFF) versions), MAX5041A

0.997

1

1.003

V/V

MAX5038A (+2.5V and +3.3V output versions) 0.495 0.5 0.505

3dB Bandwidth

Minimum Output Current Drive

f3dB

CDIFF = 20pF

IOUT(DIFF)

3

1.0

MHz

mA

SENSE+ to SENSE- Input

Resistance

RVS_

50

100

kΩ

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