ADP3212(OLD) 查看數據表（PDF） - ON Semiconductor

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ADP3212
(Rev.:OLD)

7-Bit, Programmable, 3-Phase, Mobile CPU Synchronous Buck Controller

ON Semiconductor 

ADP3212/NCP3218

Parameter

CSREF Crowbar Voltage

Threshold

CSREF Reverse Voltage

Threshold

Symbol

VCBCSREF

VRVCSREF

PWRGD Low Voltage

PWRGD High, Leakage

Current

PWRGD Start-up Delay

VPWRGD

IPWRGD

TSSPWRGD

PWRGD Latch-off Delay

TLOFFPWRGD

PWRGD Propagation Delay3 TPDPWRGD

Crowbar Latch-off Delay2

TLOFFCB

PWRGD Masking Time

CSREF Soft-stop Resistance

CURRENT CONTROL

CURRENT-SENSE AMPLIFIER

(CSAMP)

CSSUM, CSREF Common-

Mode Range2

CSSUM, CSREF Offset Voltage

CSSUM Bias Current

CSREF Bias Current

CSCOMP Voltage Range2

CSCOMP Current

CSCOMP Slew Rate2

VOSCSA

IBCSSUM

IBCSREF

ICSCOMPsource

ICSCOMPsink

Gain Bandwidth2

CURRENT MONITORING

and PROTECTION

CURRENT REFERENCE

IREF Voltage

CURRENT LIMITER (OCP)

Current Limit (OCP)

Threshold

GBWCSA

VREF

VLIMTH

Current Limit Latch-off Delay

CURRENT MONITOR

Current Gain Accuracy

IMON/ILIM

Conditions

Relative to FBRTN, VVID > 1.1 V

Relative to FBRTN, VVID ≤ 1.1 V

Relative to FBRTN, Latch-off mode

CSREF is falling

CSREF is rising

IPWRGD(SINK) = 4 mA

VPWRDG = 5 V

Measured from CLKEN# neg edge to PWRGD pos

edge

Measured from Out-off-Good-Window event to

Latch-off (switching stops)

Measured from Out-off-Good-Window event to

PWRGD neg edge

Measured from Crowbar event to Latch-off

(switching stops)

Triggered by any VID change or OCP event

EN = L or Latch-off condition

Min Typ

1.5 1.55

1.3 1.35

−370

−300

−75

85

8

120

200

200

100

70

Max Units

1.6 V

1.4 V

mV

−10 mV

250 mV

1

μA

ms

μs

ns

ns

μs

Ω

Voltage range of interest

CSREF – CSSUM , TA = −40C to 85C

Voltage range of interest

CSCOMP = 2 V,

CSSUM forced 200 mV below CSREF

CSSUM forced 200 mV above CSREF

CCSCOMP = 10 pF, CSREF = VDAC, Open loop

configuration

CSSUM forced 200 mV below CSREF

CSSUM forced 200 mV above CSREF

Non-inverting unit gain configuration

RFB = 1 kOhm

0

−1.2

−20

−3

0.05

−750

1

2

V

+1.2 mV

+20 nA

+3 μA

2

V

μA

mA

20

V/μs

−20

V/μs

20

MHz

RREF = 80 kΩ to set IREF = 20 uA

1.55 1.6

Measured from CSCOMP to CSREF, RLIM = 1.5 kΩ,

3-ph configuration, PSI = H

3-ph configuration, PSI = L

−75 −90

−22 −30

2-ph configuration, PSI = H

2-ph configuration, PSI = L

−75 −90

−36 −45

1-ph configuration

−75 −90

Measured from OCP event to PWRGD de-assertion

120

Measured from ILIM to IMON

ILIM = −20 μA

ILIM = −10 μA

Rev. SpA | Page 5 of 43

3.7 4

3.6 4

1.65 V

−106 mV

−38 mV

−106 mV

−54

−106 mV

μs

4.3 -

4.4 -

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