参数资料
型号: ISL6740AIVZA
厂商: Intersil
文件页数: 7/14页
文件大小: 0K
描述: IC REG CTRLR PWM VM 16-TSSOP
标准包装: 960
PWM 型: 电压模式
输出数: 1
频率 - 最大: 2MHz
占空比: 100%
电源电压: 9 V ~ 16 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 105°C
封装/外壳: 16-TSSOP(0.173",4.40mm 宽)
包装: 管件
ISL6740A
Electrical Specifications Recommended operating conditions unless otherwise noted. Refer to “Functional Block Diagram” on
page 2 and Typical Application Schematics on page 3 and page 4. 9V < V DD < 20 V, R TD = 51.1k Ω , R TC = 10k Ω , C T = 470pF, T A = -40°C to 105°C,
Typical values are at T A = 25°C. Boldface limits apply over the operating temperature range, -40°C to +105°C. (Continued)
MIN
MAX
PARAMETER
TEST CONDITIONS
(Note 7)
TYP
(Note 7)
UNITS
SOFT-START
Charging Current
SS Clamp Voltage
Sustained Overcurrent Threshold Voltage
Overcurrent/Short Circuit Discharge Current
Fault SS Discharge Current
Reset Threshold Voltage
SS = 2V
Charged Threshold minus:
SS = 2V
SS = 2V
-45
4.35
0.20
13
-
0.25
-55
4.5
0.25
18
10.0
0.27
-75
4.65
0.30
23
-
0.33
μA
V
V
μA
mA
V
FAULT
Fault High Level Output Voltage (VOH)
Fault Low Level Output Voltage (VOL)
Fault Rise Time
Fault Fall Time
I LOAD = -10mA
I LOAD = 10mA
C LOAD = 100pF
C LOAD = 100pF
2.85
-
-
-
3.5
0.4
15
15
-
0.9
-
-
V
V
ns
ns
OUTPUT
High Level Output Voltage (VOH)
Low Level Output Voltage (VOL)
Rise Time
Fall Time
V REF - OUTA or OUTB,
I OUT = -50mA, 1μS duration, C VREF = 1.0μF
OUTA or OUTB - GND, I OUT = 50mA,
1 μ s duration, C VREF = 1.0μF
C GATE = 1nF, V DD = 15V
C GATE = 1nF, V DD = 15V
-
-
-
-
0.5
0.5
50
40
1.0
1.0
100
80
V
V
ns
ns
THERMAL PROTECTION
Thermal Shutdown
Thermal Shutdown Clear
Hysteresis, Internal Protection
135
120
-
145
130
15
155
140
-
°C
°C
°C
OTS
Threshold
Hysteresis, Switched Current Amplitude
2.375
18
2.50
25
2.625
30
V
μ A
UV/FF Undervoltage Inhibit/Feed Forward
Input Voltage Low/Inhibit Threshold
Hysteresis, Switched Current Amplitude
Input High Clamp Voltage
Input Impedance
0.97
7
4.8
1
1.00
10
-
-
1.03
15
-
-
V
μA
V
M Ω
FF Gain
Maximum Control Voltage
V RTD /V FF , V RTC /V FF
0.78
4.20
0.8
-
0.82
V REF
V/V
V
NOTES:
7. Compliance to datasheet limits is assured by one or more methods: production test, characterization and/or design.
8. SYNC pulse width is the greater of this value or the C T discharge time.
9. This is the maximum duty cycle achievable using the specified values of R TC , R TD , and C T . Larger or smaller maximum duty cycles may be obtained
using other values for these components. See Equations 2-4.
10. The oscillator frequency is affected by the tolerance of the timing components used. In particular, parasitic capacitance at the CT pin introduced by
layout, leads, and probes, etc. will lower the frequency.
7
FN9195.3
February 9, 2012
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