參數(shù)資料
型號(hào)： TL3842BDRG4-8
廠商： TEXAS INSTRUMENTS INC
元件分類(lèi)： 穩(wěn)壓器
英文描述： 1 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO8
封裝： GREEN, PLASTIC, MS-012AA, SOIC-8
文件頁(yè)數(shù)： 25/27頁(yè)
文件大?。?/td> 625K
代理商： TL3842BDRG4-8
www.ti.com
Output Section Electrical Characteristics
Undervoltage-Lockout Section Electrical Characteristics
Pulse-Width Modulator Section Electrical Characteristics
Supply Voltage Electrical Characteristics
HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS
SLVS610B – AUGUST 2006 – REVISED JULY 2007
VCC = 15 V
(1), R
T = 10 k, CT = 3.3 nF, over recommended operating free-air temperature range (unless otherwise specified)
TL284xB
TL384xB
PARAMETER
TEST CONDITIONS
UNIT
MIN
TYP(2)
MAX
MIN
TYP(2)
MAX
IOH = –20 mA
13
13.5
13
13.5
High-level output voltage
V
IOH = –200 mA
12
13.5
12
13.5
IOL = 20 mA
0.1
0.4
0.1
0.4
Low-level output voltage
V
IOL = 200 mA
1.5
2.2
1.5
2.2
Rise time
CL = 1 nF, TJ = 25°C
50
150
50
150
ns
Fall time
CL = 1 nF, TJ = 25°C
50
150
50
150
ns
UVLO saturation
VCC = 5 V, IOL = 1 mA
0.7
1.2
0.7
1.2
V
(1)
Adjust VCC above the start threshold before setting it to 15 V.
(2)
All typical values are at TJ = 25°C.
VCC = 15 V
(1), R
T = 10 k, CT = 3.3 nF, over recommended operating free-air temperature range (unless otherwise specified)
TL284xB
TL384xB
PARAMETER
TEST CONDITIONS
UNIT
MIN
TYP(2)
MAX
MIN
TYP(2)
MAX
TLx842B, TLx844B
15
16
17
14.5
16
17.5
Start threshold voltage
V
TLx843B, TLx845B
7.8
8.4
9
7.8
8.4
9
TLx842B, TLx844B
9
10
11
8.5
10
11.5
Minimum operating voltage
V
after start-up
TLx843B, TLx845B
7
7.6
8.2
7
7.6
8.2
(1)
Adjust VCC above the start threshold before setting it to 15 V.
(2)
All typical values are at TJ = 25°C.
VCC = 15 V
(1), R
T = 10 k, CT = 3.3 nF, over recommended operating free-air temperature range (unless otherwise specified)
TL284xB
TL384xB
PARAMETER
TEST CONDITIONS
UNIT
MIN
TYP(2)
MAX
MIN
TYP(2)
MAX
TL3842B, TL3843B
94
96
100
94
96
100
Maximum duty cycle
%
TL3844B, TL3845B
47
48
50
47
48
50
Minimum duty cycle
0
%
(1)
Adjust VCC above the start threshold before setting it to 15 V.
(2)
All typical values are at TJ = 25°C.
VCC = 15 V
(1), R
T = 10 k, CT = 3.3 nF, over recommended operating free-air temperature range (unless otherwise specified)
TL284xB
TL384xB
PARAMETER
TEST CONDITIONS
UNIT
MIN
TYP(2)
MAX
MIN
TYP(2)
MAX
Start-up current
0.3
0.5
0.3
0.5
mA
Operating supply current
VFB and ISENSE at 0 V
11
17
11
17
mA
Limiting voltage
ICC = 25 mA
30
34
30
34
V
(1)
Adjust VCC above the start threshold before setting it to 15 V.
(2)
All typical values are at TJ = 25°C.
7
相關(guān)PDF資料
PDF描述
TL3844BPE4 1 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDIP8
TL3844BDRG4-8 1 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO8
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TL3842BP 功能描述:電流型 PWM 控制器 Current Mode PWM Controller 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
TL3842BPE4 功能描述:電流型 PWM 控制器 Current Mode PWM Controller 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
TL3842D 功能描述:電流型 PWM 控制器 Current-Mode PWM Controller 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
TL3842D-8 功能描述:電流型 PWM 控制器 Current-Mode PWM Controller 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
TL3842DE4 功能描述:電流型 PWM 控制器 Current-Mode PWM Controller 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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