TOP232G datasheet(12/36 Pages) PAM

12 / 36 page

TOP232-234

7/01

Figure 15. Line Sensing for Under-Voltage Only (Overvoltage

Disabled).

PI-2510-040401

Input

Voltage

VUV = RLS x IUV

For Value Shown

VUV = 100 VDC

RLS

6.2 V

2 M

Ω

22 k

Ω

CONTROL

Figure 16. Line Sensing for Overvoltage Only (Under-Voltage

Disabled).

Figure 17. Externally Set Current Limit.

PI-2517-040401

Input

Voltage

For RIL = 12 k

Ω

ILIMIT = 67%

CONTROL

RIL

See graph for other

resistor values (RIL)

For RIL = 25 k

Ω

ILIMIT = 40%

PI-2516-040401

Input

Voltage

VOV = IOV x RLS

For Values Shown

VOV = 450 VDC

CONTROL

RLS

IN4148

2 M

Ω

30 k

Ω

Figure 13. Three Terminal Operation (MULTI-FUNCTION

Features Disabled. FREQUENCY Pin Tied to SOURCE

or CONTROL Pin).

Figure 14. Line Sensing for Under-Voltage, Overvoltage and

Maximum Duty Cycle Reduction.

PI-2508-081199

Input

Voltage

CONTROL

PI-2509-040401

Input

Voltage

VUV = IUV x RLS

VOV = IOV x RLS

For RLS = 2 M

Ω

VUV = 100 VDC

VOV = 450 VDC

DCMAX@100 VDC = 78%

DCMAX@375 VDC = 47%

CONTROL

RLS

2 M

Ω

Typical Uses of MULTI-FUNCTION (M) Pin

Figure 18. Current Limit Reduction with Line Voltage.

PI-2518-040401

Input

Voltage

CONTROL

RIL

RLS

2.5 M

Ω

6 k

Ω

90% @ 100 VDC

55% @ 300 VDC

ILIMIT =

TOP232G 数据表(PDF) 12 Page - Power Analog Micoelectronics

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TOP232G 数据表(PDF) 12 Page - Power Analog Micoelectronics

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