NCV8876 Просмотр технического описания (PDF) - ON Semiconductor
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NCV8876 Datasheet PDF : 17 Pages
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NCV8876
ELECTRICAL CHARACTERISTICS (−40°C < TJ < 150°C, 3.6 V < VOUT < 40 V, unless otherwise specified) Min/Max values are
guaranteed by test, design or statistical correlation.
Characteristic
Symbol
Conditions
Min
Typ
Max Unit
GENERAL
Quiescent Current, Sleep Mode
Quiescent Current, No switching
Iq,sleep
Iq,off
VOUT = 13.2 V, TJ = 25°C
Into VOUT pin, 6.8 V < VOUT < 7.3 V,
No switching
−
12
14
mA
−
2.2
4.0
mA
OSCILLATOR
Switching Frequency
FSW
Operating Range
NCV887600 153
−
501
kHz
NCV887601 153
−
501
ROSC Voltage
Default Switching
VROSC
−
1.0
−
V
FSW
ROSC = Open (NCV887600, NCV887601) 153
170
187
kHz
ROSC = 100 kW
180
200
220
ROSC = 20 kW
283
315
347
ROSC = 10 kW
409
455
501
Minimum Pulse Width
Maximum Duty Cycle
Slope Compensating Ramp
(Note 2)
ton,min
Dmax
Sa
ROSC = OPEN
90
81
NCV887600 30
NCV887601 46
115
140
ns
83
85
%
34
38 mV/ ms
53
60
STATUS FLAG
STATUS Wake Up Delay
STATUS Pull−down Capability
VOUT < 7.3 V
Sinking 1.0 mA
−
9.3
14.0
ms
−
−
400
mV
CURRENT SENSE AMPLIFIER
Low−Frequency Gain
Bandwidth
ISNS Input Bias Current
Current Limit Threshold Voltage
Acsa
Input−to−output gain at dc, ISNS ≤ 1 V
0.9
1.0
1.1
V/V
BWcsa
Gain of Acsa − 3 dB
2.5
−
−
MHz
Isns,bias Out of ISNS pin
−
30
50
mA
Vcl
Voltage on ISNS pin
NCV887600 360
400
440
mV
NCV887601 180
200
220
Current Limit, Response Time
(Note 2)
Overcurrent Protection,
Threshold Voltage
tcl
%Vocp
CL tripped until GDRV falling edge,
VISNS = Vcl(typ) + 60 mV
Percent of Vcl
−
80
125
ns
125
150
175
%
Overcurrent Protection,
Response Time (Note 2)
tocp
From overcurrent event, Until switching
stops, VISNS = VOCP + 40 mV
VOLTAGE ERROR OPERATIONAL TRANSCONDUCTANCE AMPLIFIER
−
80
125
ns
Transconductance
VEA Output Resistance (Note 2)
VEA Maximum Output Voltage
VEA Sourcing Current
VEA Sinking Current
VEA Clamp Voltage
VC Delay
gm,vea
Ro,vea
Vc,max
Isrc,vea
Isnk,vea
Vc,clamp
VOUT = ±100 mV
VEA output current, Vc = 2.0 V
VEA output current, Vc = 1.5 V
VOUT < 7.3 V
VOUT < 7.3 Vwith VC pin compensation
network disconnected
0.8
1.2
1.63
mS
2.0
−
−
MW
2.5
−
−
V
80
100
−
mA
80
100
−
mA
−
1.1
−
V
−
53
60
ms
GATE DRIVER (Note 3)
Sourcing Current
Sinking Current
Isrc
VDRV ≥ 6 V,
VDRV − VGDRV = 2 V
Isink
VGDRV ≥ 2 V
NCV887600 550
800
−
mA
NCV887601 550
800
−
NCV887600 500
600
−
mA
NCV887601 500
600
−
Driving Voltage Dropout (Note 2)
Vdrv,do
VOUT − VDRV, IvDRV = 25 mA
−
0.3
0.6
V
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