參數(shù)資料
型號(hào): LNK574DG
廠商: POWER INTEGRATIONS INC
元件分類: 模擬信號(hào)調(diào)理
英文描述: SPECIALTY ANALOG CIRCUIT, PDSO8
封裝: GREEN, PLASTIC, MS-012, SOP-8
文件頁(yè)數(shù): 15/16頁(yè)
文件大?。?/td> 1515K
代理商: LNK574DG
Rev. B 12/07/10
8
LNK574
www.powerint.com
Parameter
Symbol
Conditions
SOURCE = 0 V; T
J = -40 to 125 °C
(Unless Otherwise Specified)
Min
Typ
Max
Units
Control Functions (cont.)
Minimum Switch
ON-Time
t
ON(MIN)
700
ns
DRAIN Supply Current
I
S1
FeedBack Voltage > V
FB
(MOSFET not Switching)
150
200
260
mA
I
S2
0.9 V ≤ V
FB ≤ 1.70 V
(MOSFET Switching)
200
250
310
BYPASS Pin
Charge Current
I
CH1
V
BP = 0 V, TJ = 25 °C
-5.5
-3.8
-1.8
mA
I
CH2
V
BP = 4 V, TJ = 25 °C
-3.8
-2.5
-1.0
BYPASS Pin Voltage
V
BP
5.60
5.85
6.10
V
BYPASS Pin
Voltage Hysteresis
V
BP(H)
0.8
1.0
1.2
V
BYPASS Pin
Shunt Voltage
BP
SHUNT
6.1
6.5
6.9
V
Circuit Protection
Current Limit
I
LIMIT
di/dt = 40 mA/
ms
T
J = 25 °C
126
136
146
mA
Power Coefficient
I2f
di/dt = 40 mA/
ms
T
J = 25 °C
1665
1850
2091
A2Hz
Leading Edge
Blanking Time
t
LEB
T
J = 25 °C
220
265
ns
BYPASS Pin Shutdown
Threshold Current
I
SD
V
BP = BPSHUNT
See Note E
5.0
6.5
8.0
mA
Thermal Shutdown
Temperature
T
SD
See Note B
135
142
150
°C
Thermal Shutdown
Hysteresis
T
SD(H)
See Note B
70
°C
Power Down (PD) Mode
Off-State Drain Leakage
in Power Down Mode
I
DSS(PD)
T
J = 25 °C,
V
DRAIN = 325 V
See Figure 23
6.5
9
mA
BYPASS Pin Overvoltage
Protection in Power
Down Mode
V
BP(PDP)
I
BP = 300 mA
T
J ≤ 100 °C
7.25
8.5
10.9
V
BYPASS Pin Power Up
Reset Threshold (in
Power Down Mode or at
Power Supply Start-up)
V
BP(PU)
1.5
3
4
V
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