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PN8106 데이터시트 PDF




Chipown에서 제조한 전자 부품 PN8106은 전자 산업 및 응용 분야에서
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부품번호 PN8106 기능
기능 Low Standby-Power Off-Line PWM Converters
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PN8106 데이터시트, 핀배열, 회로
PN8106
Chipown
Low Standby-Power Off-line PWM converters
General Description
The PN8106 consists of an integrated Pulse Width Modulator (PWM) controller and power MOSFET, specifically designed for a
high performance off-line converter with minimal external components. PN8106 offers complete protection coverage with automatic
self-recovery feature including Cycle-by-Cycle current limiting (OCP), over voltage (OVP) and overload protection (OLP), over
temperature protection (OTP) and soft-start. Burst mode operation and device very low consumption helps to meet the standby
energy saving regulations. Excellent EMI performance is achieved with frequency modulation. The device consists of the high
voltage start-up circuit. The device provides an advanced platform well suited for low standby-power and cost-effective flyback
converters.
Features
Applications
Internal 730 V avalanche-rugged power MOSFET
Switch AC/DC Adaptor and Battery Charger
■ Operating Frequency(60kHz)
Auxiliary Power for White Goods, PC,Audio
Frequency modulation for low EMI
LCD /PDP TV Power
Burst-mode Operation
LED Drivers
No-load consumption power < 40 mW @220VAC
Built-in Soft Start
Internal HV Start-up Circuit
Pin Assignments
Open frame output power >18W @230VAC
DIP8/DIP7
Excellent Protection Coverage:
Over Temperature Protection (OTP)
Adjustable and accurate Over Voltage Protection (OVP)
GND
VDD
SW
SW
Adjustable Pulse-by-Pulse Over Current Protection (OCP)
Over Load Protection (OLP)
Auto- recovery protection Mode
CTRL
COMP
(NC)
NC
Typical Application Schematic
AC
85~265V
Snubber
DC
Output
OTP
Block
VDD
SUPPLY
&UVLO
SW
HV Start
Block
CTRL
COMP
Control
Block
FB
Block
PWM Switch
&Gate Driver
PN8106
GND
8/F, ChuangYuan Building No.21-1 Changjiang Road, Wuxi New Destrict Tel: +86(510)8521-7718 http://www.chipown.com.cn
Rev.B.1106
1/8
http://www.Datasheet4U.com




PN8106 pdf, 반도체, 판매, 대치품
PN8106
Table 5. Controller section (TJ = 25°C, VDD = 14 V; unless otherwise specified)
SYMBOL
PARAMETER
CONDITIONS
MIN TYP MAX
COMP pin
VCOMP_olp
VCOMP_lin
VCOMP_bm
VCOMP_bm_hys
Over load shut down
threshold
Linear dynamics upper limit
Burst mode threshold
Burst mode hysteresis
ICOMP
Feedback sourced current
CTRL pin
VCTRL_l
Low level clamp voltage
CURRENT LIMIT
IDlim
Max drain current limitation
tSS Soft-start time
TON_MIN
Minimum turn ON time
td Propagation delay
tLEB
ID_BM
Leading edge blanking
Peak drain current during
burst mode
OSCILLATOR SECTION
FOSC
Switching Frequency
FD Frequency Variation
FM Modulation frequency
DMAX
Maximum duty cycle
OVER VOLTAGE PROTECTION ( OVP)
VOVP
TSTROBE
Over voltage protection
threshold
Over voltage protection
strobe time
THERMAL SECTION
Thermal shutdown
TSD
temperature
Voltage falling
Voltage rising
VCOMP = 0.3 V
3.3 V < VCOMP < 4.8 V
ICTRL = -100 uA
VCOMP = 4 V,
ICTRL = -10 µA
TJ = 25 °C
VCOMP = 0.6 V
VDD = operating voltage
range, VCOMP = 1 V
4.5 4.8 5.2
3.1 3.4 3.6
0.45
50
-150 -200 -280
-3
0.5
0.72 0.8 0.88
8.5
450
150
300
160 180
54 60 66
±5
250
70 80
2.7 3 3.3
2.2
140 160
THYST
Thermal shutdown hysteresis
30
UNIT
V
V
V
mV
uA
uA
V
A
ms
ns
ns
ns
mA
kHz
kHz
Hz
%
V
us
°C
°C
8/F, ChuangYuan Building No.21-1 Changjiang Road, Wuxi New Destrict Tel: +86(510)8521-7718 http://www.chipown.com.cn
Rev.B.1106
4/8

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PN8106 전자부품, 판매, 대치품
PN8106
burst mode and power MOSFET stops switching. It can be switched on again once the voltage on COMP pin exceeds
50mV over VCOMPbm. The switching frequency control also eliminates the audio noise at any loading condition.
8. Adjustable current limit of over current protection (OCP)
Cycle-by-Cycle current limiting is offered in PN8106 current mode converter. The switch current is detected by a sense
resistor into the sense pin. The current limiting comparator is disabled and cannot turn off the power MOSFET during
the blanking time. PN8106 have a maximum current limit. And also, the system designers could regulate this parameter
through changing the Rlim value. see Figure 3.
Figure 3. Current limit vs Rlim.
Id_limit (mA)
850
800
750
700
650
600
550
500
450
R_limit VS Id_limit
9 14 19 24 29 34 39 44 49 54 59 64 69
R_limit (KΩ)
9. Over voltage protection(OVP)
OVP function is achieved by CTRL pin which connects with the auxiliary transformer through the divided resistance in
order to control and monitor the output voltage. While CTRL pin voltage is detected during the MOSFET off-time, if
the detected voltage exceeds 3V for sequential four cycles, then OVP out signal turn into ‘1”, over voltage protection
enable. As a result, the device shut down and system enters auto- recovery mode operation.
10. About CTRL pin
Table6. CTRL pin configurations
Function
Adjustable current limit
OVP
Adjustable current limit+ OVP
Optional
Yes
Yes
No
Rlim
see Figure 3
=68
/
Rovp
No
Yes
/
Daux
No
Yes
/
11. Over temperature protection (OTP)
The power MOSFET and control chip are integrated, making it easier for control chip to detect the temperature of
MOSFET. If the temperature exceeds about 160℃,OTP fault is activated.
8/F, ChuangYuan Building No.21-1 Changjiang Road, Wuxi New Destrict Tel: +86(510)8521-7718 http://www.chipown.com.cn
Rev.B.1106
7/8

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PN8106

Low Standby-Power Off-Line PWM Converters

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