A2550 查看數據表（PDF） - Allegro MicroSystems
零件编号
产品描述 (功能)
生产厂家
A2550 Datasheet PDF : 15 Pages
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A2550
Relay Driver with 5 V Regulator
for Automotive Applications
Timing Diagram: Initial Start-up and Exiting Sleep Mode
VBB
VREG5
WDI
CWD
Internal Vref
EN or
ENBAT
tPOR
Internal Vref
tPOR
CPOR
NPOR
OUTx
1
~INx
2
~INx
3
4
1. 5 V signal to wake up microcontroller.
2. OUTx enabled with first watchdog pulse.
3. Power ramp-up sequence with watchdog active.
4. NPOR inactive, but outputs not enabled until watchdog detected.
Allegro MicroSystems, Inc.
8
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
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