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PDF PN8370 Data sheet ( Hoja de datos )
| Número de pieza | PN8370 | |
| Descripción | Low Standby-Power Quasi-Resonant Primary-Side Converter | |
| Fabricantes | Chipown | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de PN8370 (archivo pdf) en la parte inferior de esta página. Total 10 Páginas | ||
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PN8370
Chipown
Low Standby-Power Quasi-Resonant Primary-Side Converter
General Description
The PN8370 consists of a Low Standby-Power Quasi-Resonant (QR) Primary-Side controller and a 650V avalanche-rugged smart
power VDMOSFET, specifically designed for a high performance AC/DC charger or adaptor with minimal external components.
PN8370 operates in primary-side sensing and regulation, so opto-coupler and TL431 could be eliminated. Because of internal HV
Start-up circuit, the system with PN8370 can achieve less than 30mW standby power consumption (230VAC). In CV mode,
multi-mode and quasi resonant technique is utilized to achieve high efficiency, avoid audible noise and make the system meeting
Energy star class VI. Good load regulation is achieved by the built-in cable drop compensation. In CC mode, the current and output
power setting can be adjusted externally by the sense resistor at CS pin. PN8370 offers complete protections including Cycle-by-Cycle
current limiting protection (OCP), over voltage protection (OVP), over temperature protection (OTP) and CS open or short protection
(CSO/SP) etc.
Applications
■ Switch AC/DC Adaptor
■ Battery Charger
Output Features
Features
■ Internal 650 V avalanche-rugged smart power VDMOSFET
■ Internal HV Start-up Circuit, Standby power consumption
< 30mW at 230VAC
■ Multi-mode and Quasi-Resonant technique achieve high
Package/Order Information
efficiency, meeting energy star class VI
■ ±5% CC Regulation at Universal AC input
■ Primary-side Sensing and Regulation without TL431 and
Opto-coupler
■ Programmable Cable Drop Compensation
■ No-need Control Loop Compensation Capacitance
■ Excellent Protection Coverage:
Over Temperature Protection (OTP)
VDD Under/Over Voltage Protection(UVLO&OVP)
Cycle-by-Cycle Current Limiting (OCP)
Cs Short/Open Protection (CS O/SP)
Order codes
PN8370SSC-R1
PN8370NEC-T1
Package
SOP7
DIP8
Typical power
85~265 VAC
12W
15W
Typical Application
AC
85~265V
Snubber
DC
Output
FB
GND
OTP
Block
C C /C V
control
Cable
comp
VDD
SUPPLY
&UVLO
SW
HV
Startup
PW M Switch
&Gate Driver
OCP
CS
PN8370
13/F, Building C, Wangzhuang Technology Innovation Center, Longshan Road,New District, Wuxi Tel: +86(510)85217718 http://www.chipown.com.cn Rev.A.1507 1 / 10
1 page  
PN8370
Typical Characteristics Plots
Chipown
800
750
700
650
600
-50
-25
0 25 50 75 100 125 150
Junction T emperature (℃)
(a) BV vs Tj
9.50
9.00
8.50
8.00
7.50
-50 -25
0 25 50 75 100 125 150
Junction T emperature (℃)
35.00
(c) VDDoff vs Tj
34.00
33.00
32.00
31.00
-50 -25
0 25 50 75 100 125 150
Junction T emperature (℃)
(e) VDD_OVP vs Tj
2.60
2.55
2.50
2.45
2.40
-50
-25
0 25 50 75 100 125 150
Junction T emperature (℃)
(g) VREF_CV vs Tj
6
4.5
3
1.5
0
-50 -25
0 25 50 75 100 125 150
Junction T emperature (℃)
(b) Rdson vs Tj
17.5
16.75
16
15.25
14.5
-50 -25
0 25 50 75 100 125 150
Junction T emperature (℃)
(d) VDDon vs Tj
26.00
25.00
24.00
23.00
22.00
-50 -25
0 25 50 75 100 125 150
Junction T emperature (℃)
(f) Icable vs Tj
0.510
0.505
0.500
0.495
0.490
-50 -25
0 25 50 75 100 125 150
Junction T emperature (℃)
(h) VTH_OC vs Tj
13/F, Building C, Wangzhuang Technology Innovation Center, Longshan Road,New District, Wuxi Tel: +86(510)85217718 http://www.chipown.com.cn Rev.A.1507 5 / 10
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet PN8370.PDF ] | |
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