參數(shù)資料
型號(hào): UC1845LQMLV
廠商: Texas Instruments, Inc.
英文描述: Current Mode PWM Controller
中文描述: 電流模式PWM控制器
文件頁數(shù): 2/19頁
文件大?。?/td> 937K
代理商: UC1845LQMLV
2
UC1842/3/4/5
UC2842/3/4/5
UC3842/3/4/5
ABSOLUTE MAXIMUM RATINGS
(Note 1)
Supply Voltage (Low Impedance Source) . . . . . . . . . . . . . . 30V
Supply Voltage (I
CC
< 30mA) . . . . . . . . . . . . . . . . . Self Limiting
Output Current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
±
1A
Output Energy (Capacitive Load) . . . . . . . . . . . . . . . . . . . . 5
μ
J
Analog Inputs (Pins 2, 3). . . . . . . . . . . . . . . . . . . -0.3V to +6.3V
Error Amp Output Sink Current . . . . . . . . . . . . . . . . . . . . 10 mA
Power Dissipation at T
A
25
°
C
(
DIL
8) . . . . . . . . . . . . . . . . .
1 W
Power Dissipation at T
A
25°C (SOIC-14) . . . . . . . . . 725 mW
Storage Temperature Range. . . . . . . . . . . . . . -65°C to +150°C
Junction Temperature Range . . . . . . . . . . . . . -55°C to +150°C
Lead Temperature (soldering, 10 seconds). . . . . . . . . . . 300°C
Note 1:
All voltages are with respect to Pin 5.
All currents are positive into the specified terminal.
Consult Packaging Section of Databook for thermal
limitations and considerations of packages.
CONNECTION DIAGRAMS
DIL-8, SOIC-8 (TOP VIEW)
N or J Package, D8 Package
PLCC-20 (TOP VIEW)
Q Package
SOIC-14, CFP-14. (TOP VIEW)
D or W Package
PACKAGE PIN FUNCTION
FUNCTION
N/C
COMP
N/C
N/C
V
FB
N/C
I
SENSE
N/C
N/C
R
T
/C
T
N/C
PWR GND
GROUND
N/C
OUTPUT
N/C
V
C
V
CC
N/C
V
REF
PIN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Package
TA
25°C
Power Rating
700 mW
Derating Factor
Above TA
25°C
5.5 mW/°C
TA
70°C
Power Rating
452 mW
TA
85°C
Power Rating
370 mW
TA
125°C
Power Rating
150 mW
W
DISSIPATION RATING TABLE
相關(guān)PDF資料
PDF描述
UC2842DR Current Mode PWM Controller
UC2842DW Current Mode PWM Controller
UC3842P Current Mode PWM Controller
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UC3844P Current Mode PWM Controller
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