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L6728 数据表(PDF) 7 Page - STMicroelectronics

部件名 L6728
功能描述  Single phase PWM controller with PowerGOOD
PDF  32 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

L6728 数据表(HTML) 7 Page - STMicroelectronics

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L6728
Electrical specifications
7/32
4
Electrical specifications
4.1
Absolute maximum ratings
Table 4.
Absolute maximum ratings
4.2
Electrical characteristics
Symbol
Parameter
Value
Unit
VCC
to GND
-0.3 to 15
V
VBOOT, VUGATE
to PHASE
to GND
to GND; t < 200ns
15
33
45
V
VPHASE
to GND
to GND; t < 200ns
-5 to 18
-8 to 30
V
VLGATE
to GND
-0.3 to VCC+0.3
V
FB, COMP, VSEN to GND
-0.3 to 3.6
V
PGOOD to GND
-0.3 to VCC+0.3
V
Table 5.
Electrical characteristics
(VCC = 5V to 12V; Tj = 0° to 70°C unless otherwise specified).
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
Supply current and power-ON
ICC
VCC supply current
UGATE and LGATE = OPEN
6
mA
IBOOT
BOOT supply current
UGATE = OPEN; PHASE to GND
0.7
mA
UVLO
VCC Turn-ON
VCC Rising
4.1
V
Hysteresis
0.2
V
OSCILLATOR
FSW
Main oscillator accuracy
270
300
330
kHz
∆V
OSC
PWM ramp amplitude
1.4
V
dMAX
Maximum duty cycle
80
%
Reference and error amplifier
Output voltage accuracy
-0.8
-
0.8
%
A0
DC Gain(1)
120
dB
GBWP
Gain-bandwidth product(1)
15
MHz
SR
Slew-rate(1)
8V/
µs
DIS
Disable threshold
COMP Falling
0.70
0.85
V



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