參數(shù)資料
型號(hào): NCV3843BV
廠商: ON SEMICONDUCTOR
英文描述: High Performance Current Mode Controllers(高性能電流模式控制器)
中文描述: 高性能電流模式控制器(高性能電流模式控制器)
文件頁(yè)數(shù): 4/20頁(yè)
文件大?。?/td> 369K
代理商: NCV3843BV
UC3842B, UC3843B, UC2842B, UC2843B, NCV3843BV
http://onsemi.com
4
ELECTRICAL CHARACTERISTICS
(V
CC
= 15 V [Note 5], R
T
= 10 k, C
T
= 3.3 nF. For typical values T
A
= 25
°
C, for min/max values
T
A
is the operating ambient temperature range that applies [Note 6], unless otherwise noted.)
UC284XB
UC384XB, XBV
Characteristics
Symbol
Min
Typ
Max
Min
Typ
Max
Unit
OUTPUT SECTION
Output Voltage
Low State (I
Sink
= 20 mA)
(I
Sink
= 200 mA)
UC284XB, UC384XB
UC384XBV
UC284XB, UC384XB
UC384XBV
High State
(I
Source
= 20 mA)
(I
Source
= 200 mA)
V
OL
V
OH
13
12
0.1
1.6
13.5
13.4
0.4
2.2
13
12.9
12
0.1
1.6
1.6
13.5
13.5
13.4
0.4
2.2
2.3
V
Output Voltage with UVLO Activated (V
CC
= 6.0 V, I
Sink
= 1.0 mA)
Output Voltage Rise Time (C
L
= 1.0 nF, T
J
= 25
°
C)
Output Voltage Fall Time (C
L
= 1.0 nF, T
J
= 25
°
C)
V
OL(UVLO)
t
r
t
f
0.1
1.1
0.1
1.1
V
50
150
50
150
ns
50
150
50
150
ns
UNDERVOLTAGE LOCKOUT SECTION
Startup Threshold (V
CC
)
UCX842B, BV
UCX843B, BV
V
th
15
7.8
16
8.4
17
9.0
14.5
7.8
16
8.4
17.5
9.0
V
Minimum Operating Voltage After TurnOn (V
CC
)
UCX842B, BV
UCX843B, BV
V
CC(min)
9.0
7.0
10
7.6
11
8.2
8.5
7.0
10
7.6
11.5
8.2
V
PWM SECTION
Duty Cycle
Maximum UC284XB, UC384XB
Maximum
UC384XBV
Minimum
DC
(max)
DC
(min)
94
96
0
94
93
96
96
0
%
TOTAL DEVICE
Power Supply Current
Startup (V
CC
= 6.5 V for UCX843B,
Startup
V
CC
14 V for UCX842B, BV)
(Note 5)
I
CC
+ I
C
0.3
12
0.5
17
0.3
12
0.5
17
mA
Power Supply Zener Voltage (I
CC
= 25 mA)
5. Adjust V
above the Startup threshold before setting to 15 V.
6. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient as possible.
T
low
= 0
°
C for UC3842B, UC3843B; 25
°
C for UC2842B, UC2843B; 40
°
C for UC3842BV, UC3843BV
T
high
= +70
°
C for UC3842B, UC3843B; +85
°
C for UC2842B, UC2843B; +105
°
C for UC3842BV, UC3843BV
NCV3843BV: T
low
= 40
°
C, T
high
= +125
°
C. Guaranteed by design. NCV prefix is for automotive and other applications requiring site and
change control.
V
Z
30
36
30
36
V
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NCV3843BV_10 制造商:ONSEMI 制造商全稱(chēng):ON Semiconductor 功能描述:High Performance Current Mode Controllers
NCV3843BVD1R2G 功能描述:電流型 PWM 控制器 ANA SMPS PWM CNTRLER RoHS:否 制造商:Texas Instruments 開(kāi)關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14
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NCV3843BVDR2G 功能描述:電流型 PWM 控制器 ANA PWM SWTCHING REG RoHS:否 制造商:Texas Instruments 開(kāi)關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14
NCV3845BVD1R2G 制造商:ONSEMI 制造商全稱(chēng):ON Semiconductor 功能描述:High Performance Current Mode Controllers