ISL6312 데이터 시트보기 (PDF) - Intersil
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ISL6312 Datasheet PDF : 35 Pages
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ISL6312
Electrical Specifications Recommended Operating Conditions, Unless Otherwise Specified. (Continued)
PARAMETER
TEST CONDITIONS
MIN
MAX
(Note 6) TYP (Note 6) UNITS
DAC Input Low Voltage (AMD)
-
-
0.6
V
DAC Input High Voltage (AMD)
1.0
-
-
V
PIN-ADJUSTABLE OFFSET
OFS Sink Current Accuracy (Negative Offset)
OFS Source Current Accuracy (Positive Offset)
ERROR AMPLIFIER
ROFS = 10kΩ from OFS to GND
ROFS = 30kΩ from OFS to VCC
37.0
40.0
43.0 μA
50.5
53.5
56.5 μA
DC Gain
Gain-Bandwidth Product
Slew Rate
RL = 10k to ground, (Note 5)
CL = 100pF, RL = 10k to ground, (Note 5)
CL = 100pF, Load = ±400mA, (Note 5)
-
96
-
dB
-
20
-
MHz
-
8
-
V/μs
Maximum Output Voltage
Load = 1mA
3.90
4.20
-
V
Minimum Output Voltage
Load = -1mA
-
1.30
1.5
V
SOFT-START RAMP
Soft-Start Ramp Rate
VR10/VR11, RS = 100kΩ
AMD
-
1.563
- mV/µs
2.063
mV/µs
Adjustment Range of Soft-Start Ramp Rate (Note 5)
0.625
-
6.25 mV/µs
PWM OUTPUT
PWM Output Voltage LOW Threshold
Iload = ±500µA
-
-
0.5
V
PWM Output Voltage HIGH Threshold
Iload = ±500µA
4.5
-
-
V
CURRENT SENSING
Current Sense Resistance, RISEN
Sensed Current Tolerance
T = +25°C
ISEN1+ = ISEN2+ = ISEN3+ = ISEN4+ = 80μA
297
300
303
Ω
76
80
84
μA
OVERCURRENT PROTECTION
Overcurrent Trip Level - Average Channel
Normal operation
110
125
140
μA
Dynamic VID change
143
163
183
μA
Overcurrent Trip Level - Individual Channel
Normal operation
150
177
204
μA
Dynamic VID change (Note NOTES:)
209.4
238
266.6 μA
PROTECTION
Undervoltage Threshold
VSEN falling
55
60
65 %VID
Undervoltage Hysteresis
VSEN rising
-
10
-
%VID
Overvoltage Threshold During Soft-Start
VR10/VR11
1.24
1.28
1.32
V
AMD
2.13
2.20
2.27
V
Overvoltage Threshold (Default)
VR10/VR11, OVPSEL tied to ground, VSEN rising VDAC + VDAC + VDAC + V
150mV 175mV 200mV
AMD, OVPSEL tied to ground, VSEN rising
VDAC + VDAC + VDAC + V
225mV 250mV 275mV
Overvoltage Threshold (Alternate)
OVPSEL tied to +5V, VSEN rising
VDAC + VDAC + VDAC + V
325mV 350mV 375mV
Overvoltage Hysteresis
VSEN falling
-
100
-
mV
SWITCHING TIME (Note 5)
UGATE Rise Time
tRUGATE; VPVCC = 12V, 3nF load, 10% to 90%
-
26
-
ns
7
FN9289.5
February 25, 2010
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