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ISL1903EVAL2Z 数据表(PDF) 9 Page - Intersil Corporation

部件名 ISL1903EVAL2Z
功能描述  Dimmable Buck LED Driver - AC Mains or DC Input LED Driver
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制造商  INTERSIL [Intersil Corporation]
网页  http://www.intersil.com/cda/home
标志 INTERSIL - Intersil Corporation

ISL1903EVAL2Z 数据表(HTML) 9 Page - Intersil Corporation

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ISL1903
9
FN8285.1
September 20, 2012
RAMP
RAMP Sink Current Device Impedance
IRAMP = 10 mA
-
-
20
RAMP to PWM Comparator Offset
TA = +25°C
181
235
287
mV
Input Bias Current
VRAMP = 0.3V
-1.0
-
1.0
µA
PULSE WIDTH MODULATOR
PWM Restart Delay Range
8V < VDD< 26V
0.2
-
2.0
µs
PWM Restart Cycle Delay
RDELADJ = 20.0k, 8V < VDD< 26V
240
280
320
ns
RDELADJ = 210k, 8V < VDD< 26V
2.00
2.20
2.40
μs
Maximum Frequency Clamp
8V < VDD< 26V, RAMP = 2V,
RRAMP = 100Ω
0.8
1.0
1.2
MHz
Minimum Frequency Clamp
8V < VDD< 26V, RRAMP = 23KΩ
20
25
31
kHz
Minimum On Time
8V < VDD< 26V, FB = 1V, AC = 2V,
RAMP = 0V
173
-
246
ns
VERR to PWM Gain
8V < VDD< 26V
-
0.200
-
V/V
SS to PWM Gain
8V < VDD< 26V
-
0.222
-
V/V
ERROR AMPLIFIER
Input Common Mode (CM) Range
(Note 8)
0
-
3.4
V
GBWP
(Note 8)
1.9
-
-
MHz
VERR VOL
IVERR = 6mA, 8V < VDD< 26V
-
-
0.950
V
VERR VOH
IVERR = 1mA (Ext. pull-up),
SS complete
3.90
4.00
4.20
V
Open Loop Gain
(Note 8)
70
-
-
dB
Offset Voltage (VOS)
8V < VDD< 26V
-7.5
-
7.5
mV
Input Bias Current
8V < VDD< 26V
-1.0
-
1.0
µA
CURRENT SENSE (CS+)
Zero Current Detection (CrCM) Threshold, Falling
8V < VDD< 26V
6
18
30
mV
Input Bias Current
8V < VDD< 26V
-1.0
-
1.0
µA
AC DETECTOR
Input Bias Current
8V < VDD< 26V
-50
-
50
nA
Detection Threshold, Falling
8V < VDD< 26V, ACPEAK = 100mV
19
32
51
mV
Detection Threshold Hysteresis
8V < VDD< 26V
-
23
-
mV
Input Operating Range
8V < VDD< 26V
0
-
4.00
V
Clamp Voltage
IACDETECT = 1.0mA
6.8
-
7.6
V
EA Reference Input Range
8V < VDD< 26V
0
-
0.538
V
Electrical Specifications Recommended operating conditions unless otherwise noted. Refer to “Functional Block Diagram -
ISL1903” on page 2 and “Typical Application schematics” beginning on page 3. VDD = 17V, RRAMP = 54kΩ, CRAMP = 470pF, TA = -40°C to
+125°C, Typical values are at TA = +25°C; Boldface limits apply over the operating temperature range, -40°C to +125°C. (Continued)
PARAMETER
TEST CONDITIONS
MIN
(Note 7)
TYP
MAX
(Note 7)
UNITS


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