NCP1397A データシートの表示（PDF） - ON Semiconductor

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NCP1397A

High Performance Resonant Mode Controller with Integrated High-Voltage Drivers

ON Semiconductor 

NCP1397A, NCP1397B

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

Pin

Min

Typ

Max Unit

SUPPLY SECTION

VCC(on) Turn−on threshold level, VCC going up

VCC(min) Minimum operating voltage after turn−on

Vboot(on) Startup voltage on the floating section

Vboot(min) Cutoff voltage on the floating section

Istartup

Startup current, VCC < VCC(on)

VCC(reset) VCC level at which the internal logic gets reset

ICC1

Internal IC consumption, no output load on pin 15/14 – 11/10,

FSW = 300 kHz

ICC2

Internal IC consumption, 1 nF output load on pin 15/14 – 11/10,

FSW = 300 kHz

ICC3

Consumption in fault or disable mode (All drivers disabled,

Rt = 34 kW, RDT = 10 kW)

VOLTAGE CONTROL OSCILLATOR (VCO)

12

12

16−14

16−14

12

12

12

12

12

9.7

10.5 11.3

V

8.7

9.5

10.3

V

8

9

10

V

7.4

8.4

9.4

V

−

−

300

mA

−

6.6

−

V

−

4

−

mA

−

11

−

mA

−

1.5

−

mA

FSW(min) Minimum switching frequency, Rt = 34 kW on pin 4, Vpin6 = 0.8 V,

DT = 300 ns

4

58.2

60

61.8

kHz

FSW(max) Maximum switching frequency, Rf(max) = 1.9 kW on pin 2, Vpin6 >

5.3 V, Rt = 34 kW, DT = 300 ns

2

440

500

560

kHz

FBSW

DC

Feedback pin swing above which Df = 0

Operating duty−cycle symmetry

6

−

5.3

−

V

11−15

48

50

52

%

Tdel1

Delay before driver restart from fault or disable mode

Tdel2

Delay before driver restart after VCC(on) event (Note 4)

Vref(Rt) Reference voltage for Rt pin

FEEDBACK SECTION

−

−

700

−

ns

−

−

11

−

ms

4

2.18

2.3

2.42

V

RFB

Internal pulldown resistor

6

−

20

−

kW

VFB(min) Voltage on pin 6 below which the FB level has no VCO action

6

−

1.1

−

V

VFB(off) Voltage on pin 6 below which the controller considers the FB fault

6

240

280

320

mV

VFBoff(hyste) Feedback fault comparator hysteresis

6

−

45

−

mV

DRIVE OUTPUT

Tr

Tf

ROH

ROL

Tdead

Tdead(max)

Tdead(min)

IHV(LEAK)

TIMERS

Output voltage risetime @ CL = 1 nF, 10−90% of output signal

Output voltage falltime @ CL = 1 nF, 10−90% of output signal

Source resistance

Sink resistance

Deadtime with RDT = 10 kW from pin 7 to GND

Maximum deadtime with RDT = 82 kW from pin 7 to GND

Minimum deadtime, RDT = 3 kW from pin 7 to GND

Leakage current on high voltage pins to GND

15−14/11−10 −

40

−

ns

15−14/11−10 −

20

−

ns

15−14/11−10 −

13

−

W

15−14/11−10 −

5.5

−

W

7

250

290

340

ns

7

−

2

−

ms

7

−

100

−

ns

14, 15,16

−

−

5

mA

Itimer1

Timer capacitor charge current during feedback fault or when

Vref(fault) < Vpin9 < Vref(OCP)

3

150

175

190

mA

3. The IC does not activate soft−start (unless the feedback pin voltage is below 0.3 V) when the skip/disable input is released, this is for skip

cycle implementation.

4. Guaranteed by design.

http://onsemi.com

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