NCV8667 データシートの表示（PDF） - ON Semiconductor
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NCV8667 Datasheet PDF : 20 Pages
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NCV8667
ELECTRICAL CHARACTERISTICS Vin = 13.2 V, VEN = 3 V, VDT = GND, VSI = Vout (NCV8667y0 only), RSI1, RSI2, RSI_ext not used,
Cin = 0.1 mF, Cout = 2.2 mF, for typical values TJ = 25°C, for min/max values TJ = −40 °C to 150°C; unless otherwise noted. (Notes 9
and 10)
Parameter
Test Conditions
Symbol
Min
Typ
Max
Unit
REVERSE OUTPUT CURRENT PROTECTION
Reverse Output Current Protection VEN = 0 V, Iout = −1 mA
PSRR
Vout_rev
−
2
5.5
V
Power Supply Ripple Rejection
(Note 12)
f = 100 Hz, 0.5 Vpp
PSRR
−
60
−
dB
ENABLE
Enable Input Threshold Voltage
Logic Low
Logic High
Vth(EN)
−
V
−
0.8
2.5
−
−
Enable Input Current
Logic High VEN = 5 V
Logic Low VEN = 0 V, TJ < 85 °C
DT (Reset Delay Time Select)
μA
IEN_ON
−
3
5
IEN_OFF
−
0.5
1
DT Threshold Voltage
Logic Low
Logic High
Vth(DT)
−
2
V
−
0.8
−
−
DT Input Current
RESET OUTPUT RO
VDT = 5 V
IDT
−
−
1
μA
Output Voltage Reset Threshold
(Note 14)
Reset Hysteresis
Maximum Reset Sink Current
Reset Output Low Voltage
Reset Output High Voltage
Integrated Reset Pull Up Resistor
Reset Delay Time (Note 14)
Vout decreasing
Vin > 5.5 V
Vout = 4.5 V, VRO = 0.25 V
Vout > 1 V, IRO < 200 mA
Min time available, DT connected to GND
Max time available, DT connected to Vout
VRT
VRH
IROmax
VROL
VROH
RRO
tRD
90
−
1.75
−
4.5
15
6.4
102.4
(−20 %)
93
2.0
−
0.15
−
30
8
128
96
−
−
0.25
−
50
9.6
153.6
(+20 %)
%Vout
%Vout
mA
V
V
kW
ms
Reset Reaction Time (see Figure
29)
tRR
16
25
38
μs
EARLY WARNING (SI and SO)
Sense Input Threshold
(NCV8667y0)
(Adjustable EW Threshold Option)
High
Low
VSI(th)
V
1.25 1.33 1.40
1.20 1.25 1.33
Early Warning Input Voltage
RSI1 = 480 kW, RSI2 = 520 kW
Vin_EW(th)
V
Threshold (Preset EW Threshold (internal resistor divider values, see Figure 3)
Values) NCV8667y2
RSI_ext = 150 kW (±1%, ±100 ppm/°C)
High (external resistor value, see Figure 26)
5.67 6.30 6.92
Low
5.30 5.89 6.47
Sense Input Current (NCV8667y0)
(Adjustable EW Threshold Option) VSI = 5 V
ISI
μA
−1
0.1
1
9. Refer to ABSOLUTE MAXIMUM RATINGS and APPLICATION INFORMATION for Safe Operating Area.
10. Performance guaranteed over the indicated operating temperature range by design and/or characterization tested at TA [TJ. Low duty
cycle pulse techniques are used during testing to maintain the junction temperature as close to ambient as possible.
11. Measured when output voltage falls 100 mV below the regulated voltage at Vin = 13.2 V.
12. Values based on design and/or characterization.
13. Iq for Preset EW Threshold Options is measured when RSI_ext is not used. For typical values of Iq vs RSI_ext see Figure 27.
14. See APPLICATION INFORMATION section for Reset Threshold and Reset Delay Time Options
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