ISL6236AIRZ-T Просмотр технического описания (PDF) - Intersil
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производитель
ISL6236AIRZ-T
Intersil
ISL6236AIRZ-T Datasheet PDF : 37 Pages
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ISL6236A
Electrical Specifications
PARAMETER
No load on LDO, OUT1, OUT2, VREF3, and REF, VIN = 12V, EN2 = EN1 = VCC, VBYP = 5V, PVCC = 5V,
VEN_LDO = 5V, TA = -40°C to +100°C, unless otherwise noted. Typical values are at TA = +25°C. (Continued)
CONDITIONS
MIN
TYP
MAX UNITS
Current-Limit Threshold
(Positive, Adjustable)
Zero-Current Threshold
GND - PHASE
VILIM = 0.5V
VILIM = 1V
VILIM = 2V
SKIP# = GND, REF, or OPEN, GND - PHASE
40
50
60
mV
93
100
107
mV
185
200
215
mV
3
mV
Current-Limit Threshold (Negative, Default) SKIP# = VCC, GND - PHASE
-120
mV
Soft-Start Ramp Time
Zero to full limit
1.7
ms
Operating Frequency
(VtON = GND), SKIP# = VCC
SMPS 1
SMPS 2
400
kHz
500
kHz
(VtON = REF or OPEN),
SKIP# = VCC
SMPS 1
SMPS 2
400
kHz
300
kHz
(VtON = VCC), SKIP# = VCC
SMPS 1
SMPS 2
200
kHz
300
kHz
On-Time Pulse Width
Minimum Off-Time
VtON = GND (400kHz/500kHz)
Vt ON = REF or OPEN
(400kHz/300kHz)
Vt ON = VCC (200kHz/300kHz)
VOUT1 = 5.00V
VOUT2 = 3.33V
VOUT1 = 5.05V
VOUT2 = 3.33V
VOUT1 = 5.05V
VOUT2 = 3.33V
0.895 1.052 1.209
µs
0.475 0.555 0.635
µs
0.895 1.052 1.209
µs
0.833 0.925 1.017
µs
1.895 2.105 2.315
µs
0.833 0.925 1.017
µs
200
300
400
ns
Maximum Duty Cycle
VtON = GND
VOUT1 = 5.05V
88
%
VOUT2 = 3.33V
85
%
VtON = REF or OPEN
VOUT1 = 5.05V
88
%
VOUT2 = 3.33V
91
%
VtON = VCC
VOUT1 = 5.05V
94
%
VOUT2 = 3.33V
91
%
Ultrasonic SKIP Operating Frequency
SKIP# = REF or OPEN
25
37
kHz
INTERNAL REGULATOR AND REFERENCE
LDO Output Voltage
BYP = GND, 5.5V < VIN < 25V, LDOREFIN < 0.3V,
0 < ILDO < 100mA
4.925 5.000 5.075
V
LDO Output Voltage
BYP = GND, 4.5V < VIN < 25V, LDOREFIN > (VCC - 1V), 3.250 3.300 3.350
V
0 < ILDO < 100mA
LDO Output Voltage
BYP = GND, 4.5V < VIN < 25V, LDOREFIN = 2V,
0 < ILDO < 100mA
3.94
4.00
4.06
V
LDO Output Accuracy in Adjustable Mode VIN = 4.5V to 25V, VLDOREFIN = 0.35V to 0.5V
VIN = 4.5V to 25V, VLDOREFIN = 0.5V to 2V
VIN = 5.5V to 25V, VLDOREFIN = 2V to 2.25V
LDOREFIN Input Range
VLDO = 2 x VLDOREFIN
LDO Output Current
BYP = GND, VIN = 4.5V to 25V, Guaranteed by design
LDO Output Current During Switchover to 5V BYP = 5V, VIN = 5.5V to 25V, LDOREFIN < 0.3V
LDO Output Current During Switchover
to 3.3V
BYP = 3.3V, VIN = 4.5V to 25V, LDOREFIN > (VCC - 1V)
0.35
±2.5
%
±1.5
%
±1.5
%
2.25
V
100
mA
200
mA
100
mA
4
FN6453.0
March 14, 2007
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