L6384 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
L6384 Datasheet PDF : 10 Pages
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L6384
PIN DESCRIPTION (continued)
N. Name Type
Function
5
LVG
O Low Side Driver Output: the output stage can deliver 400mA source and 650mA sink [Typ.
Values].
The circuit guarantees 0.3V max on the pin (@ Isink = 10mA) with VCC > 3V and lower than
the turn on threshold. This allows to omit the bleeder resistor connected between the gate
and the source of the external mosfet normally used to hold the pin low; the gate driver
ensures low impedance also in SD conditions.
6
Vout
O Upper Driver Floating Reference: layout care has to be taken to avoid below ground
spikes on this pin.
7
HVG
O High Side Driver Output: the output stage can deliver 400mA source and 650mA sink
[Typ. Values].
The circuit gurantees 0.3V max between this pin and Vout (@ Isink = 10mA) with VCC > 3V
and lower than the turn on threshold. This allows to omit the bleeder resistor connected
between the gate and the source of the external mosfet normally used to hold the pin low;
the gate driver ensures low impedance also in SD conditions.
8 Vboot
Bootstrap Supply Voltage: it is the upper driver floating supply. The bootstrap capacitor
connected between this pin and pin 6 can be fed by an internal structure named "bootstrap
driver" (a patented structure). This structure can replace the external bootstrap diode.
RECOMMENDED OPERATING CONDITIONS
Symbol Pin
Vout 6
Vboot - 8
Vout
fsw
Vcc
2
Tj
Parameter
Output Voltage
Floating Supply Voltage
Switching Frequency
Supply Voltage
Junction Temperature
Test Condition
Min.
Note1
Note1
HVG,LVG load CL = 1nF
-45
Note 1: If the condition Vboot - Vout < 18V is guaranteed, Vout can range from -3 to 580V.
Typ. Max. Unit
580
V
17
V
400 kHz
Vclamp V
125
°C
ELECTRICAL CHARACTERISTICS
AC Operation (VCC = 14.4V; Tj = 25°C)
Symbol Pin
ton 1 vs
5,7
tonsd 3 vs
5,7
toff 1 vs
5,7
Parameter
High/Low Side Driver
Turn-On Propagation Delay
Shut Down Input Propagation Delay
High/Low Side Driver
Turn-Off Propagation Delay
tr
7,5 Rise Time
tf
7,5 Fall Time
DC Operation (VCC = 14.4V; Tj = 25°C)
Supply Voltage Section
Vclamp 2 Supply Voltage Clamping
Vccth1 2 Vcc UV Turn On Threshold
Vccth2 2 Vcc UV Turn Off Threshold
Test Condition
Vout = 0V
Rdt = 47kΩ
Vout = 0V
Rdt = 47kΩ
Vout = 0V
Rdt = 146kΩ
Vout = 0V
Rdt = 270kΩ
CL = 1000pF
CL = 1000pF
Is = 5mA
Min. Typ. Max. Unit
200+dt
ns
220 280
ns
250 300
ns
200 250
ns
170 200
ns
70
ns
30
ns
14.6 15.6 16.6
V
11.5 12 12.5
V
9.5
10 10.5
V
3/10
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