參數(shù)資料
型號(hào): L5993D
廠商: 意法半導(dǎo)體
英文描述: CONSTANT POWER CONTROLLER
中文描述: 恒功率控制器
文件頁(yè)數(shù): 2/22頁(yè)
文件大?。?/td> 200K
代理商: L5993D
ABSOLUTEMAXIMUM RATINGS
Symbol
V
CC
I
OUT
Parameter
Value
selflimit
1.5
-0.3 to 8
-0.3 to 6
1
0.83
-40 to 150
-55 to 150
Unit
V
A
V
V
W
W
°
C
°
C
Supply Voltage (I
CC
< 50mA) (*)
Output Peak Pulse Current
Analog Inputs & Outputs (6,7)
Analog Inputs & Outputs (1,2,3,4,5,15,14, 13, 16)
Power Dissipation @ T
amb
= 70
°
C (DIP16)
@ T
amb
= 50
°
C (SO16)
Junction Temperature, Operating Range
Storage Temperature, Operating Range
P
tot
T
j
T
stg
(*) maximum package power dissipation limits must be observed
THERMAL DATA
Symbol
R
th j-amb
Parameter
Value
80
120
Unit
°
C/W
°
C/W
Thermal Resistance Junction -Ambient
(DIP16)
Thermal Resistance Junction -Ambient
(SO16)
PIN FUNCTIONS
N.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Name
SYNC
RCT
DC
VREF
VFB
COMP
SS
V
CC
V
C
OUT
PGND
SGND
ISEN
DIS
DC-LIM
Function
Synchronization. A synchronization pulse terminates the PWM cycle and discharges Ct
Oscillator pin for external C
t
, R
t
components
Duty Cycle control
5.0V +/-1.5% reference voltage at 25
°
C
Error Amplifier Inverting input
Error Amplifier Output
Soft start pin for external capacitor Css
Supply for internal ”Signal” circuitry
Supply for Power section
High current totem pole output
Power ground
Signal ground
Current sense
Disable. It must never be left floating. Tie to SGND if not used.
Connecting this pin to Vref, DC is limited to 50%. If it is left floating or grounded no limitation is
imposed
Constant Power vs. Switching Frequency. Connect a capacitor to SGND. The pinmust be
connected toVREF if not used.
16
C-POWER
SYNC
RCT
DC
VREF
VFB
SS
COMP
1
3
2
4
5
6
7
OUT
SGND
PGND
ISEN
DIS
DC-LIM
C-POWER
16
15
14
13
12
10
11
D97IN783
V
CC
8
V
C
9
PIN CONNECTION
L5993
2/22
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