參數(shù)資料
型號： PM6680TR
廠商： STMICROELECTRONICS
元件分類： 穩(wěn)壓器
英文描述： 0.4 A DUAL SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, QCC32
封裝： 5 X 5 MM, 1 MM HEIGHT, 0.50 MM PITCH, LEAD FREE, VFQFPN-32
文件頁數(shù)： 4/49頁
文件大小： 2931K
代理商： PM6680TR
Electrical characteristics
PM6680
12/49
4
Electrical characteristics
Table 5.
Electrical characteristics
VIN = 12 V, TA = 0 °C to 85 °C, unless otherwise specified
(1)
Symbol
Parameter
Test condition
Min
Typ
Max
Unit
Supply section
VIN
Input voltage range
Vout = Vref, LDO5 in
regulation
5.5
28
V
Vcc
IC supply voltage
4.5
5.5
V
VV5SW
Turn-on voltage threshold
4.8
4.9
V
Turn-off voltage threshold
4.6
4.75
V
Hysteresis
20
50
mV
VV5SW
Maximum operating range
5.5
V
Rdson
LDO5 internal bootstrap
switch resistance
V5SW > 4.9
1.8
3
OUTx,OUTx discharge-mode
on-resistance
18
25
OUTx,OUTx discharge-mode
synchronous rectifier
Turn-on level
0.2
0.36
0.6
V
Pin
Operating power consumption
FBx > VREF, Vref in
regulation, V5WS to 5 V
4mW
Ish
Operating current sunk by VIN
SHDN connected to GND,
14
18
A
Isb
Operating current sunk by VIN
ENx to GND, V5SW to GND
190
250
A
Shutdown section
VSHDN
Device on threshold
1.2
1.5
1.7
V
Device off threshold
0.8
0.85
0.9
V
Soft start section
Soft start ramp time
2
3.5
ms
Current limit and zero crossing comparator
ICSENSE
Input bias current limit
90
100
110
A
Comparator offset
VCSENSE-VPGND
-6
6
mV
Zero crossing comparator offset
VPGND - VPHASE
-1
11
mV
Fixed negative current limit
threshold
VPGND - VPHASE
-120
mV
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