ADP3212 データシートの表示（PDF） - ON Semiconductor
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ADP3212 Datasheet PDF : 35 Pages
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ADP3212, NCP3218, NCP3218G
ELECTRICAL CHARACTERISTICS
VCC = PVCC = 5.0 V, FBRTN = PGND = GND = 0 V, H = 5.0 V, L = 0 V, EN = VARFREQ = H, DPRSLP = L, PSI = 1.05 V,
VVID = VDAC = 1.2000 V, TA = −40°C to 100°C, unless otherwise noted. (Note 1) Current entering a pin (sink current) has a positive sign.
Parameter
Symbol
Conditions
Min
Typ
Max Units
VOLTAGE MONITORING and PROTECTION
POWER GOOD
CSREF Reverse Voltage
Threshold
VRVCSREF
Relative to FBRTN, latchoff mode
CSREF is falling
CSREF is rising
mV
−370 −300
−75
−10
PWRGD Low Voltage
PWRGD High, Leakage Current
PWRGD Startup Delay
VPWRGD
IPWRGD
TSSPWRGD
IPWRGD(SINK) = 4 mA
VPWRDG = 5.0 V
Measured from CLKEN neg edge to
PWRGD pos edge
85
250
mV
1.0
mA
8.0
ms
PWRGD Latchoff Delay
TLOFFPWRGD Measured from Out−off−Good−Window
120
ms
event to Latchoff (switching stops)
PWRGD Propagation Delay
TPDPWRGD
Measured from Out−off−Good−Window
200
ns
(Note 3)
event to PWRGD neg edge
Crowbar Latchoff Delay
(Note 2)
TLOFFCB
Measured from Crowbar event to
latchoff (switching stops)
200
ns
PWRGD Masking Time
Triggered by any VID change or OCP
event
100
ms
CSREF Soft−Stop Resistance
EN = L or latchoff condition
70
W
CURRENT CONTROL
CURRENT−SENSE AMPLIFIER (CSAMP)
CSSUM, CSREF Common−Mode
Range (Note 2)
Voltage range of interest
0
2.0
V
CSSUM, CSREF Offset Voltage
CSSUM Bias Current
CSREF Bias Current
CSCOMP Voltage Range
(Note 2)
VOSCSA
IBCSSUM
IBCSREF
CSREF – CSSUM , TA = −40°C to 85°C −1.2
−20
−3.0
Voltage range of interest
0.05
+1.2
mV
+20
nA
+3.0
mA
2.0
V
CSCOMP Current
ICSCOMPsource CSCOMP = 2.0 V, CSSUM forced
200 mV below CSREF
−750
mA
ICSCOMPsink CSSUM forced 200 mV above CSREF
1.0
mA
CSCOMP Slew Rate (Note 2)
CCSCOMP = 10 pF, CSREF = VDAC,
Open loop configuration
CSSUM forced 200 mV below CSREF
CSSUM forced 200 mV above CSREF
V/ms
20
−20
Gain Bandwidth (Note 2)
GBWCSA
CURRENT MONITORING and PROTECTION
CURRENT REFERENCE
Non−inverting unit gain configuration
RFB = 1 kW
20
MHz
IREF Voltage
CURRENT LIMITER (OCP)
VREF
RREF = 80 kW to set IREF = 20 mA
1.55
1.6
1.65
V
Current Limit (OCP) Threshold
VLIMTH
Measured from CSCOMP to CSREF,
RLIM = 1.5 kW,
3−ph configuration, PSI = H
3−ph configuration, PSI = L
2−ph configuration, PSI = H
2−ph configuration, PSI = L
1−ph configuration
mV
−75
−90 −106
−22
−30
−38
−75
−90 −106
−36
−45
−54
−75
−90 −106
Current Limit Latchoff Delay
Measured from OCP event to PWRGD
120
ms
de−assertion
1. All limits at temperature extremes are guaranteed via correlation using standard statistical quality control (SQC).
2. Guaranteed by design or bench characterization, not production tested.
3. Based on bench characterization data.
4. Timing is referenced to the 90% and 10% points, unless otherwise noted.
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