CS5151GDR16 datasheet(3/14 Pages) CHERRY

No de pièce	CS5151GDR16

Description	CPU 4-Bit Nonsynchronous Buck Controller

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Fabricant	CHERRY [Cherry Semiconductor Corporation]

Site Internet	http://www.cherrycorp.com/

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3

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Electrical Characteristics: 0°C < TA < +70°C; 0°C < TJ < +85°C; 8V < VCC1 < 14V; 5V < VCC2 < 14V; DAC Code: VID2 = VID1 =

VID0 = 1; VID3 = 0; CVGATE = 1nF; COFF = 330pF; CSS = 0.1µF, unless otherwise specified.

s

DAC: continued

VID3

VID2

VID1

VID0

0

1

0

3.1086

3.1400

3.1714

V

0

1

3.2076

3.2400

3.2724

V

0

1

0

3.3066

3.3400

3.3734

V

0

1

3.4056

3.4400

3.4744

V

0

3.5046

3.5400

3.5754

V

s

VGATE

Out SOURCE Sat at 100mA

Measure VCC2 – VGATE

1.2

2.0

V

Out SINK Sat at 100mA

Measure VGATE – VPGnd;

1.0

1.5

V

Out Rise Time

1V < VGATE < 9V; VCC1 = VCC2 = 12V

30

50

ns

Out Fall Time

9V > VGATE > 1V; VCC1 = VCC2 = 12V

30

50

ns

Shoot-Through Current

Note 1

50

mA

VGATE Resistance

Resistor to LGnd

20

50

100

kΩ

VGATE Schottky

LGnd to VGATE @ 10mA

600

800

mV

s

Soft Start (SS)

Charge Time

1.6

3.3

5.0

ms

Pulse Period

25

100

200

ms

Duty Cycle

(Charge Time/Pulse Period) × 100

1.0

3.3

6.0

%

COMP Clamp Voltage

VFB = 0V; VSS = 0

0.50

0.95

1.10

V

VFFB SS Fault Disable

VGATE = Low

0.9

1.0

1.1

V

High Threshold

2.5

3.0

V

s

PWM Comparator

Transient Response

VFFB = 0 to 5V to VGATE = 9V to 1V;

100

125

ns

VCC1 = VCC2 = 12V

VFFB Bias Current

VFFB = 0V

0.3

µA

s

Supply Current

ICC1

No Switching

8.5

13.5

mA

ICC2

No Switching

1.6

3.0

mA

Operating ICC1

VFB = COMP = VFFB

813

mA

Operating ICC2

VFB = COMP = VFFB

25

mA

s

COFF

Normal Charge Time

VFFB = 1.5V; VSS = 5V

1.0

1.6

2.2

µs

Extension Charge Time

VSS = VFFB = 0

5.0

8.0

11.0

µs

Discharge Current

COFF to 5V; VFB >1V

5.0

mA

s

Time Out Timer

Time Out Time

VFB = VCOMP; VFFB = 2V;

10

30

50

µs

Record VGATE Pulse High Duration

Fault Mode Duty Cycle

VFFB = 0V

35

50

65

%

Note 1: Guaranteed by design, not 100% tested in production.

Numéro de pièce similaire - CS5151GDR16

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ON Semiconductor	CS5151GDR16	572Kb / 17P	CPU 4?묪it Nonsynchronous Buck Controller July, 2006 ??Rev. 4

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CS5151GDR16 Fiches technique(PDF) 3 Page - Cherry Semiconductor Corporation

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