參數(shù)資料
型號(hào): L5994A
英文描述: ADJUSTABLE TRIPLE OUTPUT POWER SUPPLY CONTROLLER
中文描述: 可調(diào)三路輸出電源控制器
文件頁數(shù): 4/26頁
文件大小: 301K
代理商: L5994A
L5994 - L5994A
4/26
V
5
Over voltage threshold ON
V1SNS
2.09
2.15
2.21
V
Under voltage threshold ON
V1SNS
1.66
1.71
1.76
V
SECTION 2 PWM CONTROLLER
V
2out
V2SNS feedback voltage
Vin = 5V to 20V
NOSKIP = REG5
V
i2sns
-V
v2sns
= 0 to 40mA
1.566
1.64
1.714
V
V
19
-V
20
Overcurrent Threshold current
V
SOFT2
= 3.1V
37
50
63
mV
V
19
-V
20
Pulse skipping mode threshold
voltage
V
in
> 6.8V
13
mV
V
20
Over voltage threshold ON
V2SNS
1.843
1.9
1.957
V
Under voltage threshold ON
V2SNS
1.451
1.496
1.541
V
PWM CONTROLLERS CHARACTERISTICS
f
OSC
Switching frequency accuracy
OSC = 2.5V
OSC = GND OR 5V
255
170
300
200
345
230
KHz
V
15
Voltage range for 300KHz
operation
2.4
2.6
V
T
d
Dead time
HS rise
LS rise
50
30
ns
T
ov
Over voltage propagation time
V1SNS to PWROK or
V2SNS to PWROK
1.25
μ
s
Tuv
Under voltage propagation time
V1SNS to PWROK or
V2SNS to PWROK
1.5
μ
s
V
5
,V
20
Output UVLO threshold latched
Respect output voltage
65
70
75
%
I
8
,I
17
Soft start current
3.2
4
4.8
μ
A
V
8
,V
17
Soft start clamp voltage
3.1
V
HIGH AND LOW SIDE GATE DRIVER (BOTH SECTIONS)
I
25
,I
27
I
32
,I
30
Source output peak current
C
load
= 3.3nF
1
A
Sink output peak current
C
load
= 3.3nF
1
A
R
H
Rds
ON
resistance
Driver out high
2.1
4
Ohm
R
L
Rds
ON
resistance
Driver out low
1.5
3
Ohm
V
OH
Output high voltage
HSTRAP = PREG5
I
source
= 10mA;
HSOURCE = GND
4.4
5.3
5.61
V
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
ELECTRICAL CHARACTERISTICS
(continued)
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