L6376 STMicroelectronics, L6376 Datasheet - Page 4

• Manufacturer Part Number: L6376
• Description: Power Switch ICs - Power Distribution 0.5A Intel Power Sw
• Manufacturer: STMicroelectronics

Specifications of L6376

• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 25 C
• Package / Case: Power PDIP-20
• Mounting Style: Through Hole
• Lead Free Status / Rohs Status: Details

Pin connections
2
4/18
Pin connections
Figure 2.
Table 3.
2, 3, 8, 9
11, 20
12,13,
14, 15
1, 10,
N#
16
17
18
6
7
ON DELAY
Pin name
I
1
Pin connections (top view)
Pin description
O
DELAY
, I
O
GND
OFF
V
1
3
2
V
, O
R
, O
, I
CP
S
3
2
, I
4
,
4
Positive supply voltage. An internal circuit, monitoring the supply voltage,
maintains the IC in OFF-state until V
8.5 V. The diagnostic is availlable since V
Switch driver supply. To minimize the output drop voltage, a supply of about
10 V higher than V
connect a filter capacitor from pin1 to pin. The suggested value assures a
fast transition and a low supply ripple even in worse condition. Using the
four channels contemporarily, values less than 68 nF have to be avoided.
High side outputs. Four independently controlled outputs with built-in current
limitation.
Ground and power dissipating pins. These pins are connected to the bulk
ground of the IC, so are useful for heat dissipation.
Control inputs. Four independent control signals. The output is held OFF
until the voltage at the corresponding input pin reaches 1.35 V and is turned
OFF when the voltage at the pin goes below 1.15 V.
Programmable ON duration in short circuit. If an output is short circuited to
ground or carryng a current exceeding the limit, the output is turned OFF
and the diagnostic activation are delayed. This procedure allows the driving
of hard surge current loads. The delay is programmed connecting a
capacitor (50 pF to 15 nF) versus ground with the internal time constant of
1.28 µs/pF. The function can be disabled short circuiting this pin to ground.
Programmable OFF duration in short circuit. After the short circuit or
overcurrent detection, the switch is held OFF before the next attempt to
switch on again. The delay is programmed connecting a capacitor (50 pF to
15 nF) versus ground with the internal time constant of 1.28 µs/pF. Short
circuiting this pin to ground the OFF delay is 64 times the ON delay.
Asyncronous reset input. This active low input (with hysteresis), switch off all
the outputs independently from the input signal. By default it is biased low.
GND
GND
VCP
VC
O4
O3
VP
O2
O1
V
S
1
2
3
4
5
6
7
8
9
10
S
D95IN217
is required. In order to use the built-in charge pump,
20
19
18
17
16
15
14
13
12
11
Function
S
reaches 9 V or when V
GND
DIAG
R
OFF DELAY
ON DELAY
I4
I3
I2
I1
GND
S
= 5 V.
S
falls under
L6376