参数资料
型号: ISL8840AMUZ-T
厂商: Intersil
文件页数: 8/15页
文件大小: 0K
描述: IC REG CTRLR BST FLYBK ISO 8MSOP
产品培训模块: Solutions for Industrial Control Applications
标准包装: 2,500
PWM 型: 电流模式
输出数: 1
频率 - 最大: 2MHz
占空比: 100%
电源电压: 9 V ~ 30 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -55°C ~ 125°C
封装/外壳: 8-TSSOP,8-MSOP(0.118",3.00mm 宽)
包装: 带卷 (TR)
ISL8840A, ISL8841A, ISL8842A, ISL8843A, ISL8844A, ISL8845A
Electrical Specifications
ISL884xAM - Recommended operating conditions unless otherwise noted. Refer to Block Diagram and
Typical Application schematic. V DD = 15V, RT = 10k Ω , CT = 3.3nF, T A = -55 to +125°C (Note 7), Typical values
are at T A = +25°C
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
UNDERVOLTAGE LOCKOUT
START Threshold (ISL8840A, ISL8841A)
START Threshold (ISL8843A, ISL8845A)
6.5
8.0
7.0
8.4
7.5
9.0
V
V
START Threshold (ISL8842A, ISL8844A)
STOP Threshold (ISL8840A, ISL8841A)
STOP Threshold (ISL8843A, ISL8845A)
STOP Threshold (ISL8842A, ISL8844A)
Hysteresis (ISL8840A, ISL8841A)
Hysteresis (ISL8843A, ISL8845A)
Hysteresis (ISL8842A, ISL8844A)
Startup Current, I DD
Operating Current, I DD
Operating Supply Current, I D
(Note 10)
V DD < START Threshold
(Note 8)
Includes 1nF GATE loading
13.3
6.1
7.3
8.0
-
-
-
-
-
-
14.3
6.6
7.6
8.8
0.4
0.8
5.4
90
2.9
4.75
15.3
6.9
8.0
9.6
-
-
-
125
4.0
5.5
V
V
V
V
V
V
V
μ A
mA
mA
REFERENCE VOLTAGE
Overall Accuracy
Over line (V DD = 12V to 30V), load,
4.900
5.000
5.050
V
temperature
Long Term Stability
Current Limit, Sourcing
Current Limit, Sinking
T A = +125°C, 1000 hours (Note 9)
-
-20
5
5
-
-
-
-
-
mV
mA
mA
CURRENT SENSE
Input Bias Current
CS Offset Voltage
COMP to PWM Comparator Offset Voltage
Input Signal, Maximum
Gain, A CS = Δ V COMP / Δ V CS
CS to OUT Delay
V CS = 1V
V CS = 0V (Note 9)
V CS = 0V (Note 9)
0 < V CS < 910mV, V FB = 0V
-1.0
95
0.80
0.97
2.5
-
-
100
1.15
1.00
3.0
35
1.0
105
1.30
1.03
3.5
60
μ A
mV
V
V
V/V
ns
ERROR AMPLIFIER
Open Loop Voltage Gain
Unity Gain Bandwidth
Reference Voltage
FB Input Bias Current
COMP Sink Current
COMP Source Current
COMP VOH
COMP VOL
PSRR
(Note 9)
(Note 9)
V FB = V COMP
V FB = 0V
V COMP = 1.5V, V FB = 2.7V
V COMP = 1.5V, V FB = 2.3V
V FB = 2.3V
V FB = 2.7V
Frequency = 120Hz, V DD = 12V to
60
1.0
2.460
-1.0
1.0
-0.4
4.80
0.4
60
90
1.5
2.500
-0.2
-
-
-
-
80
-
-
2.535
1.0
-
-
VREF
1.0
-
dB
MHz
V
μ A
mA
mA
V
V
dB
30V (Note 9)
OSCILLATOR
Frequency Accuracy
Frequency Variation with V DD
Temperature Stability
Initial, T A = +25°C
T A = +25°C, (f 30V - f 10V )/f 30V
(Note 9)
48
-
-
51
0.2
-
53
1.0
5
kHz
%
%
8
FN6320.3
April 18, 2007
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