LM3702 datasheet(2/13 Pages) NSC

部件名	LM3702

功能描述	Microprocessor Supervisory Circuits with Low Line Output and Manual Reset

PDF	13 Pages

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制造商	NSC [National Semiconductor (TI)]

网页	http://www.national.com

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2 / 13 page

Connection Diagram

Top View

(looking from the coating side)

micro SMD 9 Bump Package

BPA09

20011501

Pin Descriptions

Bump No.

Name

Function

Manual-Reset input. When MR is less than V

MRT (Manual Reset Threshold)

RESET/RESET is engaged.

Power Supply input.

RESET

Reset Logic Output. Pulses low for t

RP (Reset Timeout Period) when triggered, and stays

low whenever V

CC is below the reset threshold or when MR is below VMRT. It remains low

for t

RP after either VCC rises above the reset threshold, or after MR input rises above

MRT (LM3702 only).

RESET

Reset Logic Output. RESET is the inverse of RESET (LM3703 only).

LLO

Low-Line Logic Output. Early Power-Fail warning output. Low when V

CC falls below VLLOT

(Low-Line Output Threshold). This output can be used to generate an NMI (Non-Maskable

Interrupt) to provide an early warning of imminent power-failure.

GND

Ground reference for all signals.

A2, A3, C2

No Connect.

No Connect. Test input used at factory only. Leave floating.

LM3702 数据表(PDF) 2 Page - National Semiconductor (TI)

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