KA7525B データシートの表示（PDF） - Fairchild Semiconductor

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KA7525B

Power Factor Correction Controller

Fairchild Semiconductor 

KA7525B

Electrical Characteristics (Continued)

Parameter

CURRENT SENSE SECTION

Symbol

Conditions

Min. Typ. Max. Unit

Input Offset Voltage (Note2)

Input Bias Current

Current Sense Delay to Output (Note2)

Vio(cs)

Ib(cs)

td(cs)

Vm1 = 0V, Vm2 = 2.2V

0V ≤ Vcs ≤ 1.7V

-

-10 3 10 mV

-1 -0.3 1 µA

- 200 500 ns

ZERO CURRENT DETECT SECTION

Detect Input Threshold

Detect Hysteresis

Vth(det) Vdet Increasing

HY(det)

-

1.65 1.8 1.95 V

180 240 300 mV

Input Low Clamp Voltage

Input High Clamp Voltage

Input Bias Current

Input High/Low Clamp Diode

Current(Note2)

OUTPUT DRIVER SECTION

Output Voltage High

Output Voltage Low

Rising Time(Note2)

Falling Time(Note2)

Vclamp(I)

Vclamp(h)

Ib(det)

Idet = -100uA

Idet = 3mA

1V ≤ Vdet ≤ 6V

Iclamp(d)

-

Voh

IO = -10mA, VCC = 12V

Vol

IO = 10mA, VCC = 12V

tr

CI = 1nF

tf

CI = 1nF

0.45 0.75 1 V

6.7 7.5 8.3 V

-1 -0.2 1 µA

-

- ±3 mA

8.5 9 - V

- 0.8 1 V

- 130 200 ns

- 50 120 ns

Maximum Output Voltage

Vomax(o) VCC = 20V

12 13 15 V

Output Voltage With UVLO Activated Vomin(o) VCC = 5V, IO = 100µA

- - 1V

RESTART TIMER SECTION

Restart Time Delay

td(rst) Vm1 = 1V, Vm2 = 3.5V

- 300 - µs

OVER VOLTAGE PROTECTION SECTION

Voltage Feedback Input Threshold

Vth(ovp) Vcs= -0.5V, Vm1=1V , Vdet=0V 1.7 1.8 1.9 V

Notes :

1. Because the reference is not brought out externally, this specification cannot be tested on the package part. It is guaranteed

by design.

2. These parameters, although guaranteed, are not 100% tested in production.

Pin4 Threshold

3. K =

Vm1×(Vm2-Vref)

(Vm1=Vpin3, Vm2=Vpin2)

5

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