ADP3208C データシートの表示（PDF） - ON Semiconductor
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ADP3208C Datasheet PDF : 37 Pages
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ADP3208C
ELECTRICAL CHARACTERISTICS VCC = PVCC1 = PVCC2 = BST1 = BST2 = High = 5.0V, FBRTN = GND = SW1 = SW2 = PGND1
= PGND2 = Low = 0 V, EN = VATFREQ = High, DPRSLP = 0 V, PSI = 1.05 V, VVID = 1.2000 V, TA = −40°C to 100°C, unless otherwise
noted (Note 1). Current entering a pin (sunk by the device) has a positive sign. RREF = 80 kW.
Parameter
Symbol
Conditions
Min Typ Max Unit
VOLTAGE MONITORING AND PROTECTION − Power Good
PWRGD Low Voltage
PWRGD High, Leakage
Current
VPWRGD
IPWRGD
IPWRGD(SINK) = 4 mA
VPWRDG = 5.0 V
50
150
mV
0.1
mA
PWRGD Startup Delay
TSSPWRGD
Measured from CLKEN neg edge to
PWRGD Pos Edge
8.0
ms
PWRGD Latchoff Delay
TLOFFPWRGD
Measured from Out−off−Good−Window
event to Latchoff (switching stops)
8.0
ms
PWRGD Propagation Delay
(Note 3)
TPDPWRGD
Measured from Out−off−Good−Window
event to PWRGD neg edge
200
ns
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
VOSCSA
CSSUM Bias Current
IBCSSUM
CSREF Bias Current
IBCSREF
CSCOMP Voltage Range (Note 2)
TA = 25°C
CSREF − CSSUM, TA = −10°C to 85°C
CSREF − CSSUM, TA = −40°C to 85°C
Operating Range
−0.5
−1.7
−1.8
−50
−120
0.05
+0.5
mV
+1.7
+1.8
+50
nA
+120
nA
2.0
V
CSCOMP Current
CSCOMP Slew Rate
ICSCOMPsource
ICSCOMPsink
CSCOMP = 2.0 V
CSSUM forced 200 mV below CSREF
CSSUM forced 200 mV above CSREF
CCSCOMP = 10 pF, Open Loop Configuration
CSSUM forced 200 mV below CSREF
CSSUM forced 200 mV above CSREF
−750
1.0
10
−10
mA
mA
V/ms
Gain Bandwidth (Note 2)
GBWCSA
CURRENT MONITORING AND PROTECTION
Non−inverting unit gain configuration
RFB = 1 kW
20
MHz
Current Reference
IREF Voltage
Current Limiter (OCP)
Current Limit Threshold
VREF
VLIMTH
RREF = 80 kW to set IREF = 20 mA
Measured from CSCOMP to CSREF,
RLIM = 4.5 kW,
2−ph configuration, PSI = H
2−ph configuration, PSI = L
1−ph configuration
Measured from CSCOMP to CSREF,
RLIM = 4.5 kW,
3−ph configuration, PSI = H
3−ph configuration, PSI = L
1−ph configuration
V
1.55
1.6
1.65
mV
−70
−95 −115
−32 −47.5 −65
−70
−95 −115
−70
−90 −115
−15
−30
−50
−70
−90 −115
Current Limit Latchoff Delay
Measured from OCP event to PWRGD
deassertion
8.0
ms
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. Timing is referenced to the 90% and 10% points, unless otherwise noted.
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