NCP1631 View Datasheet(PDF) - ON Semiconductor
Part Name
Description
Manufacturer
NCP1631 Datasheet PDF : 23 Pages
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NCP1631
Table 2. TYPICAL ELECTRICAL CHARACTERISTICS TABLE
(Conditions: VCC = 15 V, Vpin7 = 2 V, Vpin10 = 0 V, TJ from −25°C to +125°C, unless otherwise specified)
Characteristics
Test Conditions
Symbol
Min
GATE DRIVE
Fall Time
DRV1
DRV2
REGULATION BLOCK
CDRV1 = 1 nF, VDRV1 = 10 to 1 V
tf1
–
CDRV2 = 1 nF, VDRV2 = 10 to 1 V
tf2
–
Feedback Voltage Reference
Error Amplifier Source Current Capability
Error Amplifier Sink Current Capability
Error Amplifier Gain
Pin 5 Source Current when (Vout(low)
Detect) is activated
@ Vpin2 = 2.4 V
@ Vpin2 = 2.6 V
VREF
IEA(SRC)
IEA(SNK)
GEA
IControl(boost)
2.44
110
184
Pin2 Bias Current
Pin 5 Voltage:
Internal VREGUL Voltage
(measured on pin 6):
Ratio (Vout(low) Detect Threshold / VREF)
(Note 5)
Vpin2 = 2.5 V
@ Vpin2 = 2.4 V
@ Vpin2 = 2.6 V
@ Vpin2 = 2.6 V, Ipin6 = 90 mA
@ Vpin2 = 2.4 V, Ipin6 = 90 mA
FB falling
IFB(bias)
VControl(clamp)
VControl(MIN)
VControl(range)
VREGUL(MIN)
VREGUL(Clamp)
Vout(low)/VREF
−500
−
−
2.7
−
−
95.0
Ratio (Vout(low) Detect Hysteresis /
VREF) (Note 5)
SKIP MODE
FB rising
Hout(low)/VREF
−
Duty Cycle
RAMP CONTROL (valid for the two phases)
Vpin2 = 3 V
DMIN
−
Maximum DRV1 and DRV2 On−Time
(FB pin grounded)
Pin 3 voltage
Maximum Vton Voltage
Pin 3 Current Capability
Pin 3 sourced current below which the
controller is OFF
Vpin7 = 1.1 V, Ipin3 = 50 mA
Vpin7 = 1.1 V, Ipin3 = 200 mA (Note 5)
Vpin7 = 2.2 V, Ipin3 = 100 mA (Note 5)
Vpin7 = 2.2 V, Ipin3 = 400 mA (Note 5)
VBO = Vpin7 = 1.1 V, Ipin3 = 50 mA
VBO = Vpin7 = 1.1 V, Ipin3 = 200 mA
VBO = Vpin7 = 2.2 V, Ipin3 = 50 mA
VBO = Vpin7 = 2.2 V, Ipin3 = 200 mA
Not tested
ton1
ton2
ton3
ton4
VRt1
VRt2
VRt3
VRt4
Vton(MAX)
IRt(MAX)
IRt(off)
14.5
1.10
4.00
0.35
1.071
1.071
2.169
2.169
1
Pin 3 Current Range
Not tested
ZERO VOLTAGE DETECTION CIRCUIT (valid for ZCD1 and ZCD2)
IRt(range)
20
ZCD Threshold Voltage
VZCD increasing
VZCD falling
ZCD Hysteresis
VZCD decreasing
Input Clamp Voltage
High State
Low State
Ipin1 = 5.0 mA
Ipin1 = −5.0 mA
4. DRV1 and DRV2 pulsating at half this frequency, that is, 65 kHz.
5. Not tested. Guaranteed by design and characterization.
VZCD(TH),H
VZCD(TH),L
VZCD(HYS)
VZCD(high)
VZCD(low)
0.40
0.20
Typ
20
20
2.500
−20
+20
200
230
3.6
0.6
3
−
1.66
95.5
−
−
19.5
1.35
5.00
0.41
1.096
1.096
2.196
2.196
5
−
7
0.50
0.25
0.25
10
−0.65
Max
–
–
2.56
290
276
500
−
−
3.3
0.1
−
96.0
0.5
0
22.5
1.60
6.00
0.48
1.121
1.121
2.223
2.223
−
1000
0.60
0.30
Unit
ns
V
mA
mS
mA
nA
V
V
%
%
%
ms
V
V
mA
mA
mA
V
V
V
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