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PDF SCYW99143 Data sheet ( Hoja de datos )
| Número de pieza | SCYW99143 | |
| Descripción | Universal High Voltage Control Block | |
| Fabricantes | ON Semiconductor | |
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Customer Specific Device from ON Semiconductor
SCYW99143
Universal High Voltage
Control Block for SMPS
Controllers with Extremely
Low Stand-by Power
Consumption
Product Preview
The SCYW99143 is an HV control circuit specifically
designed for flyback and other SMPS controllers for
applications with extremely low no−load consumption. The
internal startup current source supplies the SCYW99143
DIE and slaved SMPS controller during start−up. This
function greatly simplifies the design of the auxiliary supply.
The built−in Brown−out protection with X2 capacitor
discharger allow for omitting inefficient resistor networks
which usage would result in unacceptable standby power
consumption increase. An Off−mode allows reaching
extremely low no−load input power consumption by turning
whole device off and thus minimizing the power
consumption of the control circuitry.
PAD CONNECTIONS
Features
• High Voltage Start Up
• Internal Brown−Out Protection
• Buffered Brown−Out Divider Output Available
• Automatic and Lossless X2 Capacitor Discharge
Function
• Remote Input for Standby Operation Control
• Active ON or OFF Off−mode Options
• Auto−Recovery Timer
• Open Collector Switch for Disabling Slave SMPS
Controller
• Up to 28−V Vcc Operation
• Extremely Low No−load Standby Power
• Latched Short−Circuit Protection (only for co−package
option)
• Internal Thermal Shutdown with Hysteresis
• This is a Pb−Free Device
This document contains information on a
product under development. ON Semiconductor
reserves the right to change or discontinue this
product without notice.
This document, and the information contained herein,
is CONFIDENTIAL AND PROPRIETARY and the
property of Semiconductor Components Industries,
LLC., dba ON Semiconductor. It shall not be used,
published, disclosed or disseminated outside of the
Company, in whole or in part, without the written
permission of ON Semiconductor. Reverse
engineering of any or all of the information contained
herein is strictly prohibited.
E 2012, SCILLC. All Rights Reserved.
Typical Applications
• Flyback and Other SMPS Converters with Extremely
Low Stand−by Power Consumption
This document contains information on a product under development. ON Semiconductor
reserves the right to change or discontinue this product without notice.
© Semiconductor Components Industries, LLC, 2013
February, 2013 − Rev. P0
1
Publication Order Number:
SCYW99143/D
1 page  
SCYW99143
CONFIDENTIAL AND PROPRIETARY
NOT FOR PUBLIC RELEASE
Table 3. ELECTRICAL CHARACTERISTICS
(For typical values TJ = 25°C, for min/max values TJ = −40°C to +125°C, Max TJ = 150°C, Vcc = 12 V unless otherwise noted)
Symbol
Rating
Pad Option Min Typ Max
HV STARTUP CURRENT SOURCE
VHV_min
Minimum voltage for current source operation
(Vcc = 4 V)
10 −
− 30 60
Istart1
Current flowing out of Vcc pin (Vcc = 0 V)
10, 8
−
0.2 0.5 0.8
Istart2
Current flowing out of Vcc pin
(Vcc = Vcc_on – 0.5 V)
10, 8
−
6 10 15
Istart_off
Off−state leakage current
(VHV = 500 V, Vcc < Vcc_on, V_REM = 0 V)
10 −
− 15 −
IHV_off_mode_1
HV pin current when off−mode is active
(VHV = 141 V, Vcc = 0 V)
10 − − − 15
IHV_off_mode_2
HV pin current when off−mode is active
(VHV = 325 V, Vcc = 0 V)
10 − − − 19
VHV_min_off−mode
Minimum voltage on HV pin during off−mode
(VREM = 10 V, Vcc = 0 V)
10 − − − 10
SUPPLY SECTION
VCC_ON
Vcc increasing level at which disable switch is
deactivated (Note 3)
8
VO1
19.5
22
24.5
VO2
16.4
18
19.7
VO3
12.8
14
15.3
VCC_OFF
VCC
decreasing
level at which the disable
activated (Note 3)
switch
is
8 VF1 10.4 11 12.1
VF2 9.9 10.5 11.6
VF3 9.5
10
11
VF4 9
9.5 10.5
VF5 8.5 9 10
VF6 8
8.5 9.4
VF7 7.6 8 8.8
VF8 7.1 7.5 8.3
VF9 6.6 7 7.7
VCC_HYST
VCC_Bias
Hysteresis VccON−VccOFF
Vcc level during latch and auto−recover modes
8 − 0.1 −
−
8 − 4.7 5.5 6.3
VCC_INHIBIT
Vcc level for Istart1 to Istart2 transition
8 − 0.5 1 1.25
ICC
Internal IC consumption during on−mode
8−
− 0.2 0.4
BROWN−OUT
V_BO_on
Brown−Out turn−on threshold (VHV going up)
(VCC = VCC_Bias) (Note 3)
10 BO1
92
101 110
BO2
102
111
120
BO3
104
112
120
V_BO_off
Brown−Out turn−off threshold
(VHV going down) (Note 3)
10 BF1
84
93 102
BF2 94 103 112
BF3 97 105 113
BO_timer
Timer duration for line cycle drop−out (Note 3)
10 − 43 − 86
3. Possible modification by metal option.
4. If this signal is not connected, the function is not activated.
5. Minimum load impedance connected to BO_buff pin is 1 MW parallel with 1 nF.
6. Guaranteed by design.
Unit
V
mA
mA
mA
mA
mA
V
V
V
V
V
V
mA
V
V
ms
http://onsemi.com
5
5 Page 
SCYW99143
CONFIDENTIAL AND PROPRIETARY
NOT FOR PUBLIC RELEASE
TYPICAL CHARACTERISTICS
94.0 61
60
93.5
59
93.0 58
92.5
92.0
91.5
−50 −25 0 25 50 75 100 125
TEMPERATURE (°C)
Figure 17. Brown−Out Turn−off Threshold,
V_BO_off (option BF1)
2.0
57
56
55
54
−50 −25 0 25 50 75 100 125
TEMPERATURE (°C)
Figure 18. Timer Duration for Line Cycle
Drop−out, BO_timer
200
1.8 180
1.6 160
1.4 140
1.2
1.0
−50 −25 0 25 50 75 100 125
TEMPERATURE (°C)
Figure 19. X2 Timer Disable Switch Threshold,
VTH_X2
5.0
120
100
−50
−25 0 25 50 75 100
TEMPERATURE (°C)
Figure 20. Hysteresis on the X2 Pin,
VTH_X2_hyst
125
90
4.5 88
4.0 86
3.5 84
3.0
−50
−25 0 25 50 75 100
TEMPERATURE (°C)
Figure 21. X2 Input Clamp Voltage,
V_X2_clamp
125
82
−50
−25 0 25 50 75 100
TEMPERATURE (°C)
Figure 22. X2 Timer Duration, X2_timer
125
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