Parallelable Secondary-Side Synchronous Rectifier
Driver and Feedback-Generator Controller ICs
ELECTRICAL CHARACTERISTICS (continued)
(V+ = +12V, GND = PGND = 0, VDR = VREG, CQSYNC = CQREC = 0, ZCP = ZCN = BUFIN = CSP = CSN = SFN = VSN = GND, VIREF =
VVSP = 1.785V, CVREG = 2.2µF, CVP = 1µF, CCOMPS = 0.1µF, CSFP = 68nF, TA = TMIN to TMAX, unless otherwise noted. Typical values
are at TA = +25°C.)
PARAMETER
ERROR AMPLIFIER
Inverting Input Current
Error-Amplifier Input Range
Error-Amplifier Input Offset
Error-Amplifier Output-Voltage
Low
SYMBOL
CONDITIONS
IINV
VINV
VOS
ICOMPV = 100µA to 5mA
VCOMPV ICOMPV = 5mA
MIN TYP MAX UNITS
-50
+50
nA
0
2.5
V
-5
+5
mV
200
mV
Error-Amplifier Unity-Gain BW
Error-Amplifier Voltage Gain
Error-Amplifier PSRR
GBW
AVOL
PSRR
RCOMP = 220Ω, ICOMP = 5mA
RCOMPV = 220Ω, ICOMP = 5mA
1.3
MHz
80
dB
60
dB
COMPV Output Resistance to
Ground
(Note 1)
1
MΩ
REMOTE-SENSE AMPLIFIER (RSA)
VSN Input Current
VSP Input Current
IVSN
IVSP
Input Common-Mode Range
Input Offset Voltage
VOSRSA
Output Impedance
Amplifier -3dB Frequency
Remote-Sense Amplifier Gain
GRS
CURRENT-SENSE AMPLIFIER (CSA)
IVSO = -0.5mA to +0.5mA
IVSO = -0.5mA to +0.5mA
IVSO = -0.5mA to +0.5mA
-100
+100
µA
-20
+100
µA
-0.3
+3.8
V
-4
mV
8
Ω
1
MHz
0.9925 1 1.0075 V/V
CSN Input Current
ICSN
-0.3V ≤ VCSN ≤ +3.8V,
-0.3V ≤ VCSP ≤ +3.8V
CSP Input Current
ICSP -0.3V ≤ VCSP ≤ +3.8V
Input Offset Voltage
Current-Sense Amplifier Gain
GCSA
ICSO = -500µA to +500µA (Note 2)
ICSO = -500µA to +500µA
Input Differential-Mode Range
Input Common-Mode Range
Output-Voltage Level Shift
Output Voltage Range
VLS
(Note 2)
VCSO(MIN) ICSO = -500µA to +500µA
Amplifier -3dB Frequency
f-3dB ICSO = -500µA to +500µA
SHARE-FORCE AMPLIFIER (SFA)
Sink Current
Source Current
-150
+150
µA
-40
+150
µA
+20
+25
+30
mV
19.8
20
20.2
V/V
100
mV
-0.3
+3.8
V
0.415
0.570
V
0.1
3.0
V
50
kHz
60
µA
500
µA
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