MAX17000AETG+ Maxim Integrated Products, MAX17000AETG+ Datasheet - Page 22

• Manufacturer Part Number: MAX17000AETG+
• Description: IC PWM CTLR DDR/DDR2/DDR3 24TQFN
• Manufacturer: Maxim Integrated Products
• Series: Quick-PWM™r

Specifications of MAX17000AETG+

• Applications: Memory, DDR2/DDR3 Regulator
• Current - Supply: 2mA
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 24-TQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Complete DDR2 and DDR3 Memory
Power-Management Solution
Table 4. Fault Protection and Shutdown Setting Truth Table
22
OVP Disabled
Discharge Disabled
(OVP = Low)
OVP Enabled
Discharge Enabled
(OVP = High)
OVP Enabled
Discharge Enabled
(OVP = High)
______________________________________________________________________________________
OVP
VTT < -90% or
VTT > +110%
(SHDN = low)
(SHDN = low)
VTT < 90% or
VTT > 110%
falling edge
falling edge
SMPS UVP
SMPS OVP
SMPS UVP
SMPS OVP
(disabled)
V
V
Shutdown
Shutdown
(enabled)
CC
CC
MODE
UVLO
UVLO
DL immediately pulled low.
VTTR tracks the SMPS output during soft-shutdown. CSL and VTT
are high impedance at the end of soft-shutdown (16 discharge
MOSFETs disabled).
DL immediately pulled low.
VTTR tracks the SMPS output during soft-shutdown. CSL and VTT
are high impedance at the end of soft-shutdown (16 discharge
MOSFETs disabled).
Controller remains active (normal operation).
Note: An OVP detection still pulls PGOOD1 low.
PGOOD2 immediately pulled low.
Soft-shutdown initiated if fault persists for more than 5ms (typ). DH
not used in soft-shutdown. DL low after soft-shutdown completed.
VTTR tracks the SMPS output soft-shutdown.
DL and DH immediately pulled low.
PGOOD1 and PGOOD2 immediately forced low. VTT and VTTR
blocks immediately disabled (high impedance, no 16 discharge
on outputs).
Soft-shutdown initiated.
DL high after soft-shutdown completed.
VTTR tracks the SMPS output during soft-shutdown. Internal 16
discharge MOSFETs on CSL and VTT enabled after soft-shutdown.
Soft-shutdown initiated. DH not used in soft-shutdown. DL low
after soft-shutdown completed.
VTTR tracks the SMPS output during soft-shutdown. Internal 16
discharge MOSFETs on CSL and VTT enabled after soft-shutdown.
DL immediately latched high, DH forced low.
PGOOD1 and PGOOD2 immediately forced low.
VTT and VTTR blocks immediately shut down. Internal 16
discharge MOSFETs on CSL and VTT enabled.
PGOOD2 immediately pulled low.
Soft-shutdown initiated if fault persists for more than 5ms (typ). DH
not used in soft-shutdown. DL low after soft-shutdown completed.
VTTR tracks the SMPS output during soft-shutdown. Internal 16
discharge MOSFETs on CSL and VTT enabled after soft-shutdown.
DL and DH immediately pulled low.
PGOOD1 and PGOOD2 immediately forced low.
VTT and VTTR blocks immediately disabled.
Internal 16 discharge MOSFETs on CSL and VTT enabled
immediately.
REACTION/DRIVER STATE
low; fault not latched.
16
MOSFETs on CSL
and VTT enabled in
shutdown.
SMPS latched fault
condition.
SMPS latched fault
condition.
VTT latched fault
condition if fault
persists for more
than 5ms (typ).
Only PGOOD1 pulled
SMPS latched fault
VTT latched fault
persists for more
condition if fault
than 5ms (typ).
impedance in
Outputs high-
discharge
COMMENT
shutdown.
condition.
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