EZ1900CS 데이터 시트보기 (PDF) - Semtech Corporation
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EZ1900CS Datasheet PDF : 5 Pages
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REGULATOR
BALANCE CONTROLLER
EZ1900
May 27, 1999
VOUT/RESISTOR SELECTION REFERENCE
(Resistor selection in Ω. See Typical Applications on following pages.)
Slave Mode (Master Regulator) VM
VOUT
3.500
3.300
2.900
2.800
2.700
2.600
2.500
R3
R4
130 232
115 187
133 174
137 169
137 158
121 130
115 115
Calc VOUT
3.494
3.293
2.895
2.801
2.700
2.600
2.506
Notes:
VM = VREF (1 + R4 / R3) + IADJ R4.
Resistor selection is based upon standard table for 1%
resistors.
Non-Slave Mode (Slave Regulator) VS
VOUT
3.500
3.300
2.900
2.800
2.700
2.600
2.500
R1
R2
137 243
137 221
137 178
124 150
130 147
121 127
133 137
*Calc VOUT
3.508
3.306
2.911
2.801
2.701
2.600
2.498
Notes:
VS = VREF (1 + (R2 + 3Ω) / R1) + IADJ (R2 + 3Ω).
*The EZ1900 operating in the non-slave mode opera-
tion will introduce approximately 3 ohms of resistance
in the voltage set path when selected. The calculated
values are based upon this addition.
TYPICAL APPLICATIONS
Balanced Current Controller Utilizing EZ108X/EZ158X Series
Voltage Select
Slave Mode Operation VM = VOUT of Master
VM = VREF (1 + R4/R3) + IADJ R4
Non-Slave Mode, VS = VOUT of Slave
VS = VREF (1 + (R2 + 3Ω) / R1) + IADJ (R2 + 3Ω)
© 1999 SEMTECH CORP.
RSENSE Select
RSENSE Select; Typical selection can be
(50mV to 100mV) / (Total IOUT / 2).
Trace resistance of 10mΩ and above can easily accomodate value
required.
3
652 MITCHELL ROAD NEWBURY PARK CA 91320
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