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参数资料
| 型号： | HCPL-5121-100 |
| 英文描述： | 2.0 Amp Output Current IGBT Gate Drive Optocoupler |
| 中文描述： | 2.0安培输出电流IGBT栅极驱动光电耦合器 |
| 文件页数： | 15/16页 |
| 文件大小： | 194K |
| 代理商： | HCPL-5121-100 |
15
IPM Dead Time and Propagation
Delay Specifications.
The HCPL-5120 includes a
Propagation Delay Difference
(PDD) specification intended to
help designers minimize “dead
time” in their power inverter
designs. Dead time is the time
period during which both the
high and low side power
transistors (Q1 and Q2 in
Figure 25) are off. Any overlap
in Q1 and Q2 conduction will
result in large currents flowing
through the power devices
between the high and low
voltage motor rail
To minimize dead time in a
given design, the turn on of
LED2 should be delayed
(relative to the turn off of
LED1) so that under worst-case
conditions, transistor Q1 has
just turned off when transistor
Q2 turns on, as shown in Figure
33. The amount of delay
necessary to achieve this
conditions is equal to the
maximum value of the
propagation delay difference
specification, PDD
MAX
, which is
specified to be 350 ns over the
operating temperature range of
-55
°
C to 125
°
C.
Delaying the LED signal by the
maximum propagation delay
difference ensures that the
minimum dead time is zero, but
it does not tell a designer what
the maximum dead time will be.
The maximum dead time is
equivalent to the difference
between the maximum and
minimum propagation delay
difference specifications as
shown in Figure 34. The
maximum dead time for the
HCPL-5120 is 700 ns (= 350 ns
- (-350 ns)) over an operating
temperature range of -55
°
C to
125
°
C.
Note that the propagation delays
used to calculate PDD and dead
time are taken at equal
temperatures and test
conditions since the
optocouplers under
consideration are typically
mounted in close proximity to
each other and are switching
identical IGBTs.
Figure 33. Minimum LED Skew for Zero Dead Time
Figure 34. Waveforms for Dead Time Calculations
PDD*MAX = (t
PHL
- t
PLH
)
MAX
= t
PHL MAX
- t
PLH MIN
*PDD = PROPAGATION
DELAY DIFFERENCE
NOTE:
FOR PDD CALCULATIONS
THE PROPAGATION DELAYS
ARE TAKEN AT THE SAME
TEMPERATURE AND TEST
CONDITIONS.
V
OUT1
I
LED2
V
OUT2
I
LED1
Q1 ON
Q2 OFF
Q1 OFF
Q2 ON
t
PHL MAX
t
PLH MIN
MAXIMUM DEAD TIME
(DUE TO OPTOCOUPLER)
= (t
PHL MAX
- t
PHL MIN
) + (t
PLH MAX
- t
PLH MIN
)
= (t
- t
) - (t
PHL MIN
- t
PLH MAX
)
= PDD*MAX - PDD*MIN
*PDD = PROPAGATION
DELAY DIFFERENCE
NOTE:
FOR DEAD TIME AND
PDD CALCULATIONS ALL
PROPAGATION DELAYS ARE
TAKEN AT THE SAME
TEMPERATURE AND TEST
CONDITIONS.
V
OUT1
I
LED2
V
OUT2
I
LED1
Q1 ON
Q2 OFF
Q1 OFF
Q2 ON
t
PHL MAX
t
PHL MIN
t
PLH MIN
t
PLH MAX
(t
- t
) MAX
= PDD*MAX
Figure 35. Input Thermal Derating Curve,
Dependence of case-to-ambient Thermal
Resistance
Figure 36. Output Thermal Derating Curve,
Dependence of case-to-ambient Thermal
Resistance
-55
-25
5
35
95
125
P
E
65
T
A
- AMBIENT TEMPERATURE -
o
C
50
30
20
10
0
40
= 70
o
C/W
= 140
C/W
= 210
o
C/W
case-to-ambient thermal resistance
0
-55
50
100
150
200
250
300
-25
T
A
- AMBIENT TEMPERATURE -
o
C
5
35
65
95
125
P
O
= 70
o
C/W
= 140
C/W
= 210
o
C/W
case-to-ambient thermal resistance
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| HCPL-5121-200 | 2.0 Amp Output Current IGBT Gate Drive Optocoupler |
| HCPL-5121-300 | 2.0 Amp Output Current IGBT Gate Drive Optocoupler |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| HCPL-5121-200 | 功能描述:逻辑输出光电耦合器 2.0A IGBT Gate Drive Hermetically sealed RoHS:否 制造商:Fairchild Semiconductor 绝缘电压:4243 Vrms 输出类型:Push-Pull 最大传播延迟时间:500 ns 最大正向二极管电压: 最大反向二极管电压: 最大正向二极管电流: 最大连续输出电流:2.5 A 最大功率耗散:100 mW 最大工作温度:+ 100 C 最小工作温度:- 40 C 封装 / 箱体:SO-16 封装:Tube |
| HCPL-5121-300 | 功能描述:逻辑输出光电耦合器 2.0A IGBT Gate Drive Hermetically sealed RoHS:否 制造商:Fairchild Semiconductor 绝缘电压:4243 Vrms 输出类型:Push-Pull 最大传播延迟时间:500 ns 最大正向二极管电压: 最大反向二极管电压: 最大正向二极管电流: 最大连续输出电流:2.5 A 最大功率耗散:100 mW 最大工作温度:+ 100 C 最小工作温度:- 40 C 封装 / 箱体:SO-16 封装:Tube |
| HCPL-5150 | 功能描述:逻辑输出光电耦合器 0.5A IGBT Gate Drive Hermetically sealed RoHS:否 制造商:Fairchild Semiconductor 绝缘电压:4243 Vrms 输出类型:Push-Pull 最大传播延迟时间:500 ns 最大正向二极管电压: 最大反向二极管电压: 最大正向二极管电流: 最大连续输出电流:2.5 A 最大功率耗散:100 mW 最大工作温度:+ 100 C 最小工作温度:- 40 C 封装 / 箱体:SO-16 封装:Tube |
| HCPL-5150#100 | 制造商:Avago Technologies 功能描述:OPTOCOUPL LOGIC-OUT PUSH-PULL DC-IN 1CH 8PDIP SMD - Bulk |
| HCPL-5150#200 | 制造商:Avago Technologies 功能描述:OPTOCOUPL LOGIC-OUT PUSH-PULL DC-IN 1CH 8PDIP - Bulk |
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