L9380(1998) 查看數據表（PDF） - STMicroelectronics
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L9380 Datasheet PDF : 12 Pages
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L9380
THERMAL DATA
Symbol
Rth j-amb
Parameter
Thermal Resistance Junction to Ambient
Value
100
Unit
°C/W
LIFETIME
Symbol
tB
tb
Parameter
Useful life time
Operating life time
Condition
VS = 0V
VS = 7 to 18.5V
Value
20
5000
Unit
years
hours
PIN FUNCTIONS
N.
1
2
4
5
6
7
8
9
10
11
12
14
15
16
17
19
20
3, 13, 18
Name
T1
VS
T2
PR
IN3
IN2
IN1
EN
GND
G3
G2
S2
S1
G1
D2
D1
CP
NC
Function
Timer capacitor; the capacitor defines the time for the channel 1 shut down, after overload of
the external MOS transistor has been detected.
Supply Voltage.
Timer capacitor; the capacitor defines the time for the channel 2 shut down, after overload of
the external MOS transistor has been detected.
Programming resistor for overload detetcion threshold; the resistor from this pin to ground
defines the drain pin current and the charging of the timer capacitor.
Input 3; equal to IN1.
Input 2; equal to IN1.
Input 1; logic signal applied to this pin controls the driver 1; this pin features a current source to
assure defined high status when the pin is open.
Enable logic signal high on this pin enables all channels
Ground
Gate 3 driver output; current source from CP or ground
Gate 2 driver output; current source from CP or ground
Source 2 sense input; monitors the source voltage.
Source 1 sense input; monitors the source voltage.
Gate 1 driver output; current source from CP or ground
Drain 2 sense input; a programmable input bias current defines the drop across the external
resistor RD1; this drop fixes the overload threshold of the external MOS.
Drain 1 sense input; a programmable input bias current defines the drop across the external
resistor RD1; this drop fixes the overload threshold of the external MOS.
Charge pump capacitor; a alternating current source at this pin charges the connected
capacitor CCP to a voltage 10V higher than VS; the charge stored in this capacitor is thanused
to charge all the three gates of the power MOS transistors.
Not connected
3/12
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