Datasheet > LNK3202G-TL

LNK3202G-TL

更新时间： 2023-12-18 00:00:00

品牌	Logo	应用领域
帕沃英蒂格盛 - POWERINT		/
页数	文件大小	规格书
22页	1875K
描述
IC OFFLN CONV MULT TOP 8SMD

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LNK3202G-TL 数据手册

LNK3202/3204-6

BYPASS

(BP/M)

DRAIN

(D)

REGULATOR

5.0 V

FAULT

PRESENT

I_FBSD

I_FB

BYPASS PIN

CAPACITOR

DETECT

5.2 V

AUTO-RESTART

COUNTER

BYPASS PIN

UNDERVOLTAGE

OVL

CURRENT LIMIT

CLOCK

RESET

COMPARATOR

5.0 V

4.5 V

I_LIMIT

JITTER

CLOCK

THERMAL

SHUTDOWN

DC_MAX

OSCILLATOR

FEEDBACK

(FB)

2.0 V -V_T

LEADING

EDGE

BLANKING

OVP

DETECT

SOURCE

(S)

PI-7879-100416

Figure 3. Functional Block Diagram.

Pin Functional Description

SOURCE (S) Pin:

This pin is the power MOSFET source connection. It is also the

ground reference for the BYPASS and FEEDBACK pins.

DRAIN (D) Pin:

Power MOSFET drain connection. Provides internal operating current

for both start-up and steady-state operation.

BYPASS (BP/M) Pin:

This pin has multiple functions:

• It is the connection point for an external bypass capacitor for the

internally generated 5.0 V supply.

P Package (DIP-8C)

G Package (SMD-8C)

D Package (SO-8C)

• It is a mode selector for the current limit value, depending on the

value of the capacitance added. Use of a 0.1 μF capacitor results

in the standard current limit value. Use of a 1 μF capacitor results

in the current limit being reduced, allowing design with lowest cost

surface mount buck chokes.

• It provides a shutdown function. When the current into the BYPASS

pin exceeds I_BPSDfor a time equal to 2 to 3 cycles of the internal

oscilator (f_OSC), the device enters auto-restart. This can be used to

provide an output overvoltage protection function with external

circuitry.

BP/M

FEEDBACK (FB) Pin:

During normal operation, switching of the power MOSFET is con-

trolled by the FEEDBACK pin. MOSFET switching is terminated when

a current greater than I_FB(49 μA) is delivered into this pin. Line

overvoltage protection is detected when a current greater than I_FBSD

(670 μA) is delivered into this pin for 2 consecutive switching cycles.

PI-7842-022416

Figure 4. Pin Conﬁguration.

Rev. F 01/17

www.power.com

123 4 5 6 7...22

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