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參數(shù)資料
| 型號： | LV5044V |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 1 A DUAL SWITCHING CONTROLLER, 380 kHz SWITCHING FREQ-MAX, PDSO30 |
| 封裝： | 0.275 INCH, SSOP-30 |
| 文件頁數(shù)： | 2/7頁 |
| 文件大?。?/td> | 236K |
| 代理商： | LV5044V |
LV5044V
No.A0534-2/7
Continued from preceding page.
Parameter
Symbol
Conditions
Ratings
Unit
Allowable pin voltage *2
1
HDRV1,2
CBOOT1,2
18
V
2
HDRV1,2 ,CBOOT1,2
to SW
6.5
V
3
VIN,
ILIM1,2
RSNS1,2, SW1,2
PGOOD1,2
18
V
4
VLIN5
VDD, LDRV1,2
6.5
V
5
COMP1,2, FB1,2
SS1,2, UV_DELAY
TD1,2, CT
CLKO
VLIN5+0.3
V
*2 Allowable pin voltages are referenced to the SGND and PGND pins, excluding No.2. No.2 Voltages are referenced to the SW pin.
Recommended Operating Conditions at Ta = 25
°C
Parameter
Symbol
Conditions
Ratings
Unit
VIN
VIN and VLIN open.
7.5 to 16
V
Supply voltage
VIN
VIN and VLIN short.
4.5 to 6.0
V
Electrical Characteristics at Ta
= 25°C, VIN = 12V
Ratings
Parameter
Symbol
Conditions
min
typ
max
Unit
System
Comparator reference voltage
VREF
0.818
0.826
0.834
V
Current drain 1
ICC1
TD1, TD2 = 5V (Excluding Ciss charge.)
2
4
6
mA
Current drain 2
ICC2
TD1, TD2 = 0V
0.3
0.6
1.2
mA
5V supply voltage
VLIN5
IVLIN5 = 0 to 10mA
4.75
5.00
5.25
V
Overcurrent detection comparator
offset
VCLOS
-5
+5
mV
Overcurrent detection reference
current
ICL
VIN = 10 to 14V
7.47
8.30
9.13
A
Soft start source current
ISSSC
TD1, TD2 = 5V
-1.8
-3.5
-7.0
A
Soft start sink current
ISSSK
TD1, TD2 = 0V
0.2
1.0
mA
Soft start clamp voltage
VSSTO
1.2
1.6
2.0
V
UV_DELAY source current
ISCUVD
UV_DELAY = 2V
-4.3
-8.6
-17.2
A
UV_DELAY sink current
ISKUVD
UV_DELAY = 2V
0.2
1.0
mA
UV_DELAY threshold voltage
VUVD
1.5
2.4
3.5
V
UV_DELAY operating voltage
VUVD op
100% at VFB = VREF
87
92
97
%
VUVP detection hysteresis
VUVP
2
%
Overvoltage detection
VOVP
100% at VFB = VREF
112
117
122
%
Overvoltage detection delay time
VODLY
1.0
S
Output discharge transistor
on-resistance
VSWON
5
10
20
Output Block
CBOOT leakage current
ICBOOT
VCBOOT = VSW + 6.5V
10
A
HDRVx and LDRVX source current
ISCDRV
1.0
A
HDRVx and LDRVX sink current
ISKDRV
1.0
A
HDRVx low side on-resistance
RHDRV
IOUT=500mA
1.5
2.5
LDRVx low side on-resistance
RLDRV
IOUT=500mA
1.5
2.5
Simultaneous on prevention
dead time 1
Tdead1
LDRV off
→ HDRV on
50
nS
Simultaneous on prevention
dead time 2
Tdead2
HDRV off
→ LDRV on
120
nS
Continued on next page.
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