NCP1396D データシートの表示（PDF） - ON Semiconductor

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NCP1396D

High Performance Resonant Mode Controller featuring High--Voltage Drivers

ON Semiconductor 

NCP1396A, NCP1396B

HV

R17

FB

OVP

R8

R24

R23 D4

U2A

U3A

Fmax

C9 C8

R7

Fast

Input

C10

R19 R9 R14 R18

1

2

3

4

Rt 5

6

7

U5

16

15

14

12

11

10

8

9

D3 C11

R13 R6

R20

C12

M1 +

C6

R10

L1

D8

R21

M2

R11

D1

R4

+

C2

R5

FB

Slow Input

D9

C13 T1 D2

U2B C4

+

C7

C14

R22

D7

C1

U1

R16

R3 C3

Vout

R12

R1

OVP

U3B

D6

R2

Soft--

start

Timer Skip

Selection

BO DT

Figure 1. Typical Application Example

PIN FUNCTION DESCRIPTION

Pin No.

Pin Name

Function

1

CSS

Soft--start

2

Fmax

Frequency clamp

3

Ctimer

Timer duration

4

Rt

Timing resistor

5

BO

Brown--Out

6

FB

Feedback

7

DT

Dead--time

8

Fast Fault

Quick fault detection

9

Slow Fault

Slow fault detection

10

GND

Analog ground

11

Mlower

Low side output

12

VCC

Supplies the controller

13

--

--

14

HB

Half--bridge connection

15

Mupper

High side output

16

Vboot

Bootstrap pin

Pin Description

Select the soft--start duration

A resistor sets the maximum frequency excursion

Sets the timer duration in presence of a fault

Connecting a resistor to this pin, sets the minimum oscillator frequency

reached for VFB = 1 V

Detects low input voltage conditions. When brought above Vlatch, it fully

latches off the controller.

Injecting current in this pin increases the oscillation frequency up to Fmax.

A simple resistor adjusts the dead--time width

Fast shut--down pin. Upon release, a clean startup sequence occurs. Can be

used for skip cycle purposes.

When asserted, the timer starts to countdown and shuts down the controller

at the end of its time duration.

--

Drives the lower side MOSFET

The controller accepts up to 20 V

--

Connects to the half--bridge output

Drives the higher side MOSFET

The floating VCC supply for the upper stage

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