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参数资料
| 型号： | LA5648 |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, DIP8 |
| 封装： | 0.300 INCH, DIP-8 |
| 文件页数： | 2/5页 |
| 文件大小： | 73K |
| 代理商： | LA5648 |
LA5648
No.A0921-2/5
Recommended Operating Conditions at Ta
= 25°C
Parameter
Symbol
Conditions
Ratings
Unit
Supply voltage
VCC
After UVLO release*
5.0 to 26.4
V
* : When VCC is increasing, UVLO is released at 11V. When VCC is decreasing, UVLO operates at 3V.
Electrical Characteristics at Ta
= 25°C, VCC = 5.0V
Ratings
Parameter
Symbol
Conditions
min
typ
max
Unit
Current dissipation 1
ICC1
When stopped
3
3.8
5
mA
Current dissipation 2
ICC2
When in 18kHz continuous oscillation mode.
With a 50
Ω resistor and a 1μF capacitor
3
6.4
10
mA
Output saturation characteristics
(H1)
VsatH1
IOUT = -150mA
2.4
2.8
V
Output saturation characteristics
(H2)
VsatH2
IOUT = -10mA
2.1
2.5
V
Output saturation characteristics
(L1)
VsatL1
IOUT = 150mA
1.50
1.80
V
Output saturation characteristics
(L2)
VsatL2
IOUT = 10mA
0.2
0.4
V
Output peak current (source)
IOUT_PH
Tj = 0 to 100
°C, Vce = 30V,
design guarantee value value*
-350
mA
Output peak current (sink)
IOUT_PL
Tj = 0 to 100
°C, Vce = 30V,
design guarantee value value*
700
mA
Output rise time
tr
0
1000
3000
ns
Output fall time
tf
0
1000
3000
ns
OCL1 sensitivity
VthOCL1
0.180
0.200
0.220
V
OCL1 sensitivity temperature
characteristics
KOCL1
design guarantee value value*
600
PPM/
°C
OCL1 response time
tOCL1
0
1000
3000
ns
OCL1 source current
IOCL1
-45
-31
-20
μA
Maximum time ratio
σMAX
When the external capacitor of 1500pF is used.
75
81
85
%
σmax pin voltage
VPC
σMAX
When the external capacitor of 1500pF is used.
1.65
1.82
2.10
V
σmax source current
IPC
σMAX
When the external capacitor of 1500pF is used.
-300
-200
-120
μA
σmax pin voltage
VPC
σ0
When the external capacitor of 1500pF is used.
0.500
0.540
0.660
V
σmax source current
IPC
σ0
When the external capacitor of 1500pF is used.
-490
-350
-240
μA
Control sensitivity
KPC
σ
When the external capacitor of 1500pF is used.
51
73
80
%/V
Timer charging start current
IPClim
When the external capacitor of 1500pF is used.
113
90
67
μA
Protection time ratio
σlim
When the external capacitor of 1500pF is used.
23
31
37
%
SYC source current (Hi)
ISYC (Hi)
-18
-15
-12
μA
SYC source current (Lo)
ISYC (Lo)
-12
-10
-8
μA
SYC sensitivity (Hi)
VthSYC (Hi)
Including external 20k
Ω
-0.22
-0.19
-0.16
V
SYC sensitivity (Lo)
VthSYC (Lo)
Including external 20k
Ω
-0.34
-0.28
-0.21
V
SYC sensitivity temperature
characteristics
KthSYC
* design guarantee value
500
PPM/
°C
SYC clamp voltage (H)
VSCLMH
0.65
0.75
0.85
V
SYC clamp voltage (L)
VSCLML
-0.60
-0.38
-0.25
V
CF current when SYC operating
IOSCoff
-2
0
2
μA
Oscillation frequency
fOSC
When the external capacitor of 1500pF is used
15.8
17.5
19.3
kHz
Oscillation frequency voltage
characteristics
KOSCV
15
Hz/V
Oscillation frequency
temperature characteristics
KOSC
* design guarantee value
250
PPM/
°C
Oscillation waveform upper limit
voltage
VOSCH
When the external capacitor of 1500pF is used.
1.92
2.03
2.17
V
Oscillation waveform lower limit
voltage
VOSCL
When the external capacitor of 1500pF is used.
0.75
0.89
1.00
V
Continued on next page.
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