CS5305GDWR28 datasheet(8/33 Pages) ONSEMI

부품명	CS5305GDWR28

상세설명	Three?뭁hase Synchronous Switching Step?묭own Controller with Single Wire Current Sharing

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ELECTRICAL CHARACTERISTICS (continued) (0°C < TA < 70°C; 0°C < TJ < 125°C; 9.5 V < VCC < 14 V; CGATEX = 100 pF,

CCOMP = 0.01μF, CSCOMP = 0.01μF, CVCC = 0.1μF, RROSC = 32.4 kΩ, RSHARE = 60.4 kΩ, V(OCSET) = 0.54 V, DAC Code 01110; unless

otherwise stated.)

Parameter

Unit

Max

Typ

Min

Test Conditions

Current Sense Amplifiers

CSREF Input Bias Current

CSREF = CSx = 0 V

−

0.3

3.0

μA

CSx Input Bias Current

CSREF = CSx = 0 V

−

0.1

1.0

μA

Sense Amp Gain

CSREF = 0 V, CSx = 0.05 V,

Measure V(COMP) when

GATEx switches high

.95

1.06

1.17

V / V

Mismatch

0 ≤(CSx − CSREF) ≤50 mV,

Note 5.

−3.0

−

3.0

mV

Common Mode Input Range

Note 5.

0

−

2.0

V

Bandwidth

Note 5.

−

7.0

−

MHz

Single Phase Pulse by Pulse

Current Limit

VFB = CSREF = 0.5 V,

COMP = 2.0 V, Measure

CSx − CSREF when GATEx

goes low

80

90

100

mV

OCSET Input Bias Current

OCSET = 0 V

−

0.1

1.0

μA

Current Sense Input to OCSET

Gain

OCSET / R (CSx − CSREF),

OCSET = 0.6 V,

Monitor DRVON < 1.0 V

3.4

3.7

4.0

V / V

Current Limit Filter Slew Rate

CSREF = 1.1 V, CSx = 1.0 V,

pulse CSx to 1.16 V, Note 5.

2.0

5.0

13

mV / μs

Adaptive Voltage Positioning

VDRP Output Voltage to

DACOUT Offset

CSx = CSREF, VFB = COMP,

Measure VDRP − COMP

−30

2.0

60

mV

Maximum VDRP Voltage

CSx − CSREF = 50 mV,

VFB = COMP,

Measure VDRP − COMP

500

560

620

mV

Current Sense Amp to VDRP

Gain

CSx − CSREF = 50 mV,

VFB = COMP,

Measure VDRP − COMP

3.4

3.7

4.0

V / V

VDRP Source Current

CSx − CSREF = 50 mV,

VFB = COMP,

VDRP = 1.5 V

1.0

7.0

14

mA

SHARE Current Sense Amplifier

IFB Input Bias Current

IFB = 0 V

−

0.2

1.0

μA

Input Offset Voltage

Note 5.

−5.0

0

5.0

mV

Common Mode Input Range

Note 5.

0

−

2.0

V

Output Current

IOUT = 0 V, CSx = 0.667 V,

CSREF = 0.5 V

1.0

10

22

mA

Gain

Note 5.

−

120

−

dB

Output Unity Gain BW

Note 5.

−

5.0

−

MHz

5. Guaranteed by design. Not tested in production.

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