MAX8650(2006) データシートの表示（PDF） - Maxim Integrated

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MAX8650
(Rev.:2006)

4.5V to 28V Input Current-Mode Step-Down Controller with Adjustable Frequency

Maxim Integrated 

4.5V to 28V Input Current-Mode Step-Down

Controller with Adjustable Frequency

ELECTRICAL CHARACTERISTICS (continued)

(VIN = 12V, VBST - VLX = 6.5V, TA = -40°C to +85°C. Typical values are at TA = +25°C, unless otherwise noted.) (Note 1)

PARAMETER

FSYNC Synchronization Range

FSYNC Input-High Pulse Width

FSYNC Input-Low Pulse Width

FSYNC Rise/Fall Time

SYNCO Phase Shift

SYNCO Output Low Level

SYNCO Output High Level

ISYNCO = 5mA

ISYNCO = 5mA

CONDITIONS

MIN TYP

160

100

100

180

VAVL -

1V

MAX

1200

100

0.4

FSYNC Pin Threshold

for SYNC Mode

FSYNC Input Low

FSYNC Input High

FET DRIVERS

DH On-Resistance, High State

DH On-Resistance, Low State

DL On-Resistance, High State

DL On-Resistance, Low State

Break-Before-Make Dead Time

LX, BST Leakage Current

THERMAL PROTECTION

Thermal Shutdown

Thermal-Shutdown Hysteresis

VBST - VLX = 6.5V

VBST - VLX = 5V

VBST - VLX = 6.5V

VBST - VLX = 5V

VVL = 6.5V

VVL = 5V

VVL = 6.5V

VVL = 5V

Low side off to high side on, high side off to low side on

VBST = 35V, VLX = 28V, VIN = 28V

Rising temperature

1.7

2.5

0.4

2.5

1.13

1.8

1.4

2.2

1.0

2

1.3

2.2

1.6

2.5

1.7

2.8

0.8

1.5

0.85

1.5

20

30

5

+160

15

UNITS

kHz

ns

ns

ns

Degrees

V

V

V

V

V

Ω

Ω

Ω

Ω

ns

µA

°C

°C

4 _______________________________________________________________________________________

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