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L6738 Datenblatt(PDF) 11 Page - STMicroelectronics

Teilenummer L6738
Bauteilbeschribung  Single-phase PWM controller with light-load efficiency optimization
PDF  32 Pages
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Hersteller  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L6738 Datenblatt(HTML) 11 Page - STMicroelectronics

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L6738
Electrical specifications
Doc ID 18133 Rev 1
11/32
3
Electrical specifications
3.1
Absolute maximum ratings
3.2
Electrical characteristics
(VCC = 5 V to 12 V; Tj = 0
° to 70° C unless otherwise specified).
Table 4.
Absolute maximum ratings
Symbol
Parameter
Value
Unit
VCC,VCCDR
to GND
-0.3 to 15
V
VBOOT, VUGATE
to GND
to PHASE
to GND, VCCDR = 12 V, t < 200nsec.
-0.3 to 41
15
45
V
VPHASE
to GND
to GND, VCCDR = 12 V, t < 200nsec.
-5 to 26
-8 to 30
V
VLGATE
to GND
-0.3 to VCCDR + 0.3
V
SYNCH
to GND, VCC < 7 V
to GND, VCC > 7 V
-0.3 to VCC + 0.3
-0.3 to 7
V
CSP, CSN
to GND(1)
1.
Current sense network needs to be properly bias and loop closed.
-0.3 to VCC - 1.5
V
All other pins to GND
-0.3 to 3.6
V
Table 5.
Electrical characteristics
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
Supply current and power-on
ICC
VCC supply current
9mA
EN = GND
8
mA
ICCDR
VCCDR supply current
UGATE and LGATE = Open
2.6
5
mA
EN = GND
UGATE and LGATE = Open
0.3
3.8
mA
UVLOVCC,
UVLOVCCDR
Turn-ON threshold
VCC, VCCDR rising
4.1
V
Hysteresis
0.2
V
Oscillator, synchronization and soft-start
FSW
Main oscillator accuracy
OSC = Open
180
200
220
kHz
kOSC
Oscillator gain
Current sink/source from OSC
10
kHz/
µA
DIS
Disable threshold
OSC Falling
0.5
V
Tss
Soft-start time
OSC = Open
4.5
5.12
5.7
msec



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