参数资料
型号: ISL6740AIVZA
厂商: Intersil
文件页数: 6/14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
SC Setpoint Accuracy
TEST CONDITIONS
(Note 7)
-
TYP
10
(Note 7)
-
UNITS
%
PULSE WIDTH MODULATOR
V ERROR Input Impedance
400
-
-
k Ω
Minimum Duty Cycle
Maximum Duty Cycle
V ERROR to PWM Comparator Input Gain
C T to PWM Comparator Input Gain
SS to PWM Comparator Input Gain
V ERROR < C T Valley Voltage
V ERROR > 4.75V, V UV/FF = 2.5V (Note 9)
R TD = 5.11k Ω, R TC = 25.5k Ω, C T = 220pF
-
-
-
-
-
-
-
83
99
0.4
0.4
0.5
0
-
-
-
-
-
%
%
%
V/V
V/V
V/V
OSCILLATOR
Frequency Accuracy
Frequency Variation with V DD
T A = +25°C (Note 10)
T A = +105°C, |(F 20V - F 9V )/F 9V |, UV/FF = 2.00V
T A = +25°C, |(F 20V - F 9V )/F 9V |, UV/FF = 2.00V
T A = -40°C, |(F 20V - F 9V )/F 9V |, UV/FF = 2.00V
333
-
-
-
351
0.1
0.1
0.2
369
0.4
0.3
0.7
kHz
%
Frequency Variation with V UV/FF
T A = +25°C, |(F 4.25V - F 2.00V )/F 2.00V |
%
V DD = 9V
V DD = 20V
-
-
1.2
1.2
3
3
%
%
Temperature Stability
Charge Current Gain
Discharge Current Gain
C T Valley Voltage
V UV/FF = 2.0V, V DD = 9V
Static operation
-
1.88
45
0.75
0.5
2.0
55
0.80
1.5
2.12
65
0.85
%
μA/μA
μA/μA
V
C T Peak Voltage
Static operation
V UV/FF = 2.00V
V UV/FF = 4.25V
2.30
4.10
2.40
4.20
2.50
4.30
V
V
R TD , R TC Voltage
R LOAD = 0 Ω
V UV/FF = 2.00V
V UV/FF = 4.25V
-
-
1.60
3.40
-
-
V
V
SYNCHRONIZATION
Input High Threshold (VIH), Minimum
Input Low Threshold (VIL), Maximum
Input Impedance
Input Frequency Range
4.0
-
-
Free Running
-
-
4.5
-
-
0.8
-
1.67 x
V
V
k Ω
Hz
Free Running
Input Pulse Width
100
-
-
ns
High Level Output Voltage (VOH)
Low Level Output Voltage (VOL)
SYNC Output Current
SYNC Output Pulse Duration (Minimum)
SYNC Advance
I LOAD = -1mA
I LOAD = 10μA
VOH > 2.0V
SYNC rising edge to GATE falling edge,
-
-
-10
250
-
4.5
-
-
-
5
-
100
-
532
-
V
mV
mA
ns
ns
C OUTA/B = C SYNC = 100pF
6
FN9195.3
February 9, 2012
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