参数资料
型号: ISL6740EVAL1
厂商: Intersil
文件页数: 9/28页
文件大小: 0K
描述: EVALUATION BOARD 1 ISL6740
标准包装: 1
主要目的: DC/DC,步降
输出及类型: 1,非隔离
输出电压: 12V
电流 - 输出: 8A
输入电压: 48V
稳压器拓扑结构: 降压
板类型: 完全填充
已供物品:
已用 IC / 零件: ISL6740
ISL6740, ISL6741
Electrical Specifications Recommended operating conditions unless otherwise noted. Refer to “Functional Block Diagram” on
page 2 and page 3 and Typical Application Schematics on page 4 to page 6. 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
SS Clamp Voltage
Sustained Overcurrent Threshold Voltage (ISL6740) Charged Threshold minus:
4.35
0.20
4.5
0.25
4.65
0.30
V
V
Overcurrent/Short Circuit Discharge Current
Fault SS Discharge Current
Reset Threshold Voltage
SS = 2V
SS = 2V
13
-
0.25
18
10.0
0.27
23
-
0.33
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
OUTA or OUTB - GND, I OUT = 50mA
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
Reference, External Protection
Hysteresis, External Protection
135
120
-
2.375
18
145
130
15
2.50
25
155
140
-
2.625
30
°C
°C
°C
V
μ A
SUPPLY UVLO/INHIBIT
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
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 through 4.
9
FN9111.6
December 2, 2011
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