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XN1043
XN1043
XN1043 、 PWM 。 。 ,, (Burst Mode)、 。 ,XN1043 , ;,XN1043 , , ,,。 XN1043 , PWM 。 XN1043 ,。 ,。 XN1043, :(OCP)、 (OLP)、(OTP)、VDD(OVP)、 (UVLO)。, MOSFET, 18V。 XN1043 OCP 50KHz , AC 。XN1043 , EMI 。, 20KHz , 。, 。 RCC
, ,。 XN1043 8-Pin SOP8 DIP8 。
Burst Mode (6.5uA) (2.3mA) PWM (OTP) (OCP) VDD (OVP) (UVLO) (18V) (OLP)
AC/DC :
◎ DS.XN1043V1.0
1
2008 6
XN1043
XN1043 8-Pin DIP8 SOP8 ,:
1 GND
2 FB
3 VIN
4 RI
DIP8 SOP8
8 GATE
7 VDD
6 SENSE
5 RT
8-Pin DIP8, Pb-free, Have OVP 8-Pin SOP8, Pb-free, Have OVP 8-Pin DIP8, Pb-free, No OVP 8-Pin SOP8, Pb-free, No OVP
XN1043DP1 XN1043SP1 XN1043DP0 XN1043SP0
X: D = DIP8 , S = SOP8 P: P = Pb-free package, Null = normal T: 1 = Have OVP, 0 = No OVP Y: Year Code (0-9) WW: Week Code (1-52) V: ( 1-9)
XN1043DP1 XN1043SP1 XN1043DP0 XN1043SP0
◎ DS.XN1043V1.0
2
2008 6
XN1043
GND FB
VIN
RI
RT SENSE VDD GATE
DIP8/SOP8
1 2
3
4
5 6 7 8
。 6 PWM 。 FB , PWM 。 , ;,。 。RI GND 。 。 NTC 。 。 MOSFET 。 。 。 MOSFET 。 (18V)。
GND
RI
VDD RT
clamp
OVP/ UVLO
PWM
OCP
Burst Mode
GATE VIN
SENSE
FB
◎ DS.XN1043V1.0
3
2008 6
XN1043
(symbol) (parameter)
(value)
(unit)
VDD
DC
30 V
VFB FB
-0.3 — 7
V
VSENSE
SENSE
-0.3 — 7
V
VRI RI
-0.3 — 7
V
VRT RT
-0.3 — 7
V
TJ
-20 — 150
℃
TSTG
-55 — 150
℃
VCV VDD clamp
35 V
ICC
VDD DC clamp
10
mA
:。,,
。
(symbol) (parameter)
VDD RI TA
VDD RI
ESD
(value)
12 — 23 24 -20 — 85
(unit)
V Kohm ℃
(symbol) (parameter)
VESD-HBM VESD-MM
ESD , ESD ,
(value)
3 250
(unit)
KV V
◎ DS.XN1043V1.0
4
2008 6
XN1043
: TA=25℃,VDD=16V,RI=25Kohm ()
Symbol
Parameter
Conditions
Min Typ Max Unit
I_VDD_Startup
VDD startup current
VDD=15V,
measure
current into VDD
6.5 20
uA
I_VDD_Operation UVLO(ON)
UVLO(OFF)
OVP(ON)
OVP(OFF) TD_OVP VDD_Clamp
Operation Current VDD under voltage lockout enter VDD under voltage lockout exit VDD Over Voltage Protection Enter VDD Over Voltage Protection Exit OVP Debounce time VDD Clamp voltage
Feedback Input Section(FB Pin)
Avcs PWM Input Gain,
VFB_Open
VFB Open Voltage
IFB_Short VTH_0D
FB pin short current Zero Duty Cycle FB Threshold Voltage
VTH_BM
Burst Mode FB Threshold Voltage
VTH_PL
Power Limiting FB Threshold
TD_PL
Power Limiting Debounce Time
ZFB_IN
Input Impedance
Current Sense Input(Sense Pin)
T_blanking
Sense Input Leading Edge Blanking Time
Zsense_IN
Sense Impedance
Input
Over
Current
TD_OC
Detection
and
Control Delay
Current Limiting
VTH_OC_0
Threshold at No
Compensation
Current Limiting
VTH_OC_1
Threshold
at
Compensation
FB=3V
I(VDD)=5mA △VFB/△VCS Short FB pin to GND
CL=1nF at GATE I(VIN)=0uA I(VIN)=150uA
2.3 mA 9.5 10.5 11.5 V
16 17 18 V
23.5 25
26.5 V
21.5 23.2 24.7 V
80 us 36 V
2.6 V/V 6V 0.8 mA
0.95 V
1.7 V
4.4 V
80 mSec 7.5 Kohm
300 nSec 39 kohm
120 nSec
0.85 0.9
0.95 V
0.81 V
◎ DS.XN1043V1.0
5
.
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