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NCP12600AAASN100T1G Datasheet(PDF) 5 Page - ON Semiconductor

Part # NCP12600AAASN100T1G
Description  Multi-Mode Controller for Offline Power Supplies
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Manufacturer  ONSEMI [ON Semiconductor]
Direct Link  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

NCP12600AAASN100T1G Datasheet(HTML) 5 Page - ON Semiconductor

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NCP12600
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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)
Characteristics
Conditions
Symbol
Min
Typ
Max
Unit
SUPPLY SECTION AND VCC MANAGEMENT
VCC level at which driving pulses are authorized
VCC increasing
VCC(on)
16
18
20
V
VCC level at which driving pulses are stopped
VCC decreasing
VCC(min)
8.3
8.9
9.5
V
Start−up hysteresis
Hysteresis VCC(on) – VCC(min)
VCC(hyst)
7.7
V
Latched−state reset voltage
VCC(reset)
8.65
V
Hysteresis above Vcc(min) for fast hiccup
VCC(hiccup)
150
mV
Hysteresis below VCC(min) before reset
Hysteresis VCC(min)
VCC(reset)
VCC(reset,
hyst)
0.18
0.33
0.42
V
Start−up supply current, controller disabled or
latched
VCC = VCC(on) – 100 mV
ICC1
5
10
mA
Internal IC consumption, steady state
Fsw = 65 kHz, CDRV = 0 nF,
VFB = 3.2 V
Fsw = 100 kHz, CDRV = 0 nF,
VFB = 3.2 V
ICC2
1
1.1
mA
Internal IC consumption, steady state
Fsw = 65 kHz, CDRV = 1 nF,
VFB = 3.2 V
Fsw = 100 kHz, CDRV = 1 nF,
VFB = 3.2 V
ICC3
1.7
2.3
mA
Internal IC consumption, skip mode – non switching
Feedback voltage is below
skip level
ICC(no−load)
300
mA
Internal IC consumption in skip mode – switching in
application, for information only
(Vcc = 12 V, driving a typical
7−A/650−V MOSFET, includes
optocoupler current)
ICC(standby)
420
mA
Internal IC consumption from OVP acknowledgment
to VCC(off) – Single−shot event
IC detects an OVP and quickly
brings VCC to VCC(off) for hiccup
ICC(OVP)
1
mA
CURRENT SENSE COMPARATOR
Maximum Current Sense Voltage Limit – no OPP
VFB = VFB(max), VCS increasing
VZCD < –60 mV (Notes 4, 5)
VILIM1
0.65
0.7
0.75
V
Overload Current Sense Voltage Threshold – dual
OCP option
VFB = VFB(max), VCS increasing
VILIM2
0.46
0.5
0.53
V
Cycle by Cycle Leading Edge Blanking Duration
tLEB1
230
280
340
ns
Cycle by Cycle Current Sense Propagation Delay
VCS > (VILIM+ 100 mV) to DRV
turn−off
tILIM
50
100
ns
Maximum Setpoint decrease for pin 3 biased to
–290 mV (Note 6)
VZCD = –290 mV
IOPPM
32.8
%
Voltage setpoint for pin 3 biased to −250 mV (Note 6)
IOPPvET
0.46
0.51
0.56
V
Blanking delay before considering VZCD for OPP
IOPPdel
600
ns
Pin 4 voltage bias for 0% OPP
VZCD = −60 mV
IOPP0
−60
mV
Frozen CS voltage in skip mode
VFB = 1 V
Vfreeze
200
mV
Soft start, time to meet Ip,max at start up
Open feedback pin
tSS
5
ms
OSCILLATOR
Oscillator frequency – nominal (65 kHz version)
2.4 V < VFB < 3.8 V
fosc,nom
61
65
71
kHz
Oscillator frequency – nominal (100 kHz version)
2.4 V < VFB < 3.8 V
fosc,nom
90
100
110
kHz
Oscillator frequency – minimum
VFB < 1.3 V
fosc,min
23
26
31
kHz
Maximum duty ratio
Dmax
76
%
4. OPP is not active as long as the negative voltage on the ZCD pin during ton is less than –60 mV.
5. beyond 3.8 V, the peak current is clamped to VILIM.
6. for proper linearity over negative bias voltage, we recommend keeping the level on pin 3 below –300 mV.


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