ADP3207 datasheet(4/29 Pages) ONSEMI

Numer części	ADP3207

Szczegółowy opis	CPU Synchronous Buck Controller

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ADP3207

Rev. 1 | Page 4 of 29 | www.onsemi.com

Parameter

Symbol

Conditions

Min

Typ

Max

Units

CURRENT BALANCE AMPLIFIER

Common Mode Range2

VSW(X)CM

−600

+200

mV

Input Resistance

RSW(X)

SWX = 0 V

30

40

60

kΩ

Input Current

ISW(X)

SWX = 0 V

3

4.5

6

μA

Input Current Matching

ΔISW(X)

SWX = 0 V

−5

+5

%

Zero Current Switching

Threshold Voltage

VDCM(SW1)

In DCM mode, DPRSLP = 3.3 V

−6

mV

Masked Off-Time

tOFFMSKD

Measured from PWM turn-off

350

ns

CURRENT-LIMIT COMPARATOR

ILIMIT Voltage

VILIMIT

RILIMIT = 113 kΩ

1.65

1.7

1.75

V

ILIMIT Current

IILIMIT

RILIMIT = 113 kΩ

−15

μA

Maximum ILIMIT Current2

−60

μA

Current-Limit Threshold Voltage

VCL

VCSREF – VCSCOMP, RILIMIT = 113 kΩ, PSI = 1.05 V

180

192

210

mV

VCSREF – VCSCOMP, RILIMIT = 113 kΩ, 1-phase, (PWM2 =

VCC), PSI = GND

180

192

210

mV

VCSREF – VCSCOMP, RILIMIT = 113 kΩ, 2-phase, (PWM3 =

VCC), PSI = GND

86

96

107

mV

VCSREF – VCSCOMP, RILIMIT = 113 kΩ, 3-phase,

(neither PWM2 = VCC nor PWM3 = VCC), PSI = GND

55

64

72

mV

SOFT START TIMER

SS Current

ISS

During start-up, VSS < 1.7 V

−10

−8

−6

μA

In normal mode, VSS = 2.0 V

−48

μA

In current limit, VSS = 2.0 V

1.5

2

2.5

μA

SS Termination Threshold Voltage

VTH(SS)

During start-up, SS is rising

1.6

1.7

1.8

V

SS Clamp Voltage

In normal mode

2.9

V

Current-Limit Latch-Off Voltage

VILO(SS)

In current limit, SS is falling

1.6

1.7

1.8

V

SOFT TRANSIENT CONTROL

STSET Current

ISOURCE(STSET)

Fast exit from deeper sleep,

DPRSLP = 0 V, STSET = VDAC – 0.3 V

−8

μA

Slow exit from deeper sleep,

DPRSLP = 3.3 V, STSET = VDAC – 0.3 V

−2.5

μA

Slow entry to deeper sleep,

DPRSLP = 3.3 V, STSET = VDAC + 0.3 V

+2.5

μA

Minimum STSET Capacitance2

CSTSET

100

pF

Long Transient Threshold Accuracy

VOS(SSMASK)

VOS(SSMASK) = VSTSET – VDAC

170

mV

SYSTEM INTERFACE CONTROL

INPUTS

PSI and DPRSTP

Input Low Voltage

VIL

0.5

0.3

V

Input High Voltage

VIH

0.7

0.5

V

DPRSLP and EN

Input Low Voltage

VIL

1.3

1.0

V

Input High Voltage

VIH

2.3

1.9

V

THERMAL THROTTLING CONTROL

TTSENSE Voltage Range2

0

5

V

TTSENSE VRTT Threshold Voltage

VCC = 5 V, TTSENSE is falling

2.45

2.5

2.55

V

TTSENSE VRTT Hysteresis

50

95

mV

TTSENSE Bias Current

TTSENSE = 2.6 V

−2

2

μA

VRTT Output Low Voltage

VOL(VRTT)

IVRTT(SINK) = 400 μA

10

500

mV

VRTT Output High Voltage

VOH(VRTT)

IVRTT(SOURCE) = 400 μA

4

5

V

Podobny numer części - ADP3207

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Podobny opis - ADP3207

Producent	Numer części	Arkusz danych	Szczegółowy opis
ON Semiconductor	ADP3207A	396Kb / 28P	CPU Synchronous Buck Controller February 2008 ??Rev. 1
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ON Semiconductor	CS5150	631Kb / 18P	CPU 4?묪it Synchronous Buck Controller July, 2006 ??Rev. 5
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ADP3207 Arkusz danych(PDF) 4 Page - ON Semiconductor

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