A2550KLPTR-T Allegro Microsystems Inc, A2550KLPTR-T Datasheet - Page 10

• Manufacturer Part Number: A2550KLPTR-T
• Description: AUTO RELAY DRIVER WITH 5V REGULATOR
• Manufacturer: Allegro Microsystems Inc

Specifications of A2550KLPTR-T

• Rohs Compliant: YES
• Applications: Automotive, Relay Driver
• Number Of Outputs: 3
• Voltage - Supply: 7 V ~ 40 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 16-TSSOP Exposed Pad, 16-eTSSOP, 16-HTSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -
• Voltage - Load: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 620-1182-2

A2550
VREG5 UVLO
Timing Diagram: VREG5 UVLO and TSD Monitoring
VREG5
Internal
Internal
1.
2.
3.
4.
5.
CPOR
NPOR
OUTx
CWD
VBB
TSD
WDI
VREG5 undervoltage detected.
VREG5 recovers, and after it rises above V
UVLO flag is deactivated and CPOR recharges.
NPOR inactive, but outputs not enabled until watchdog detected.
TSD event detected and NPOR is activated. When V
VREG5 shuts down.
TSD flag deactivated (VREG5 allowed to rise; steps 2 and 3 repeat)
outputs enabled
1
2
3
~INx
Relay Driver with 5 V Regulator
4
Internal V
Internal V
V
for Automotive Applications
UVREG5
UVREG5
ref
ref
5
+ V
REG5
UVREG5(Hys)
≤ V
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
UVREG5
~INx
,
,
10