TPS2321IPW Datasheet, PDF (1/26 Pages) Texas Instruments – DUAL HOT SWAP POWER CONTROLLERS WITH INDEPENDENT CIRCUIT BREAKER

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TPS2320
TPS2321
SLVS276F – MARCH 2000 – REVISED JULY 2013
DUAL HOT SWAP POWER CONTROLLERS
WITH INDEPENDENT CIRCUIT BREAKER
Check for Samples: TPS2320, TPS2321
FEATURES
1
• Dual-Channel High-Side MOSFET Drivers
• IN1: 3 V to 13 V; IN2: 3 V to 5.5 V
• Output dV/dt Control Limits Inrush Current
• Independent Circuit-Breaker With
Programmable Overcurrent Threshold and
Transient Timer
• CMOS- and TTL-Compatible Enable Input
• Low, 5-μA Standby Supply Current (Max)
• Available in 16-Pin SOIC and TSSOP Package
• –40°C to 85°C Ambient Temperature Range
• Electrostatic Discharge Protection
D OR PW PACKAGE
(TOP VIEW)
GATE1
1
GATE2
2
DGND
3
TIMER
4
VREG
5
AGND
6
ISENSE2
7
ISENSE1
8
16
DISCH1
15
DISCH2
14
ENABLE
13
FAULT
12
ISET1
11
ISET2
10
IN2
9
IN1
NOTE: Terminal 14 is active-high on TPS2321.
typical application
APPLICATIONS
• Hot-Swap/Plug/Dock Power Management
• Hot-Plug PCI, Device Bay
V1
3 V–13 V
IN1
VREG
ISET1 ISENSE1 GATE1
DISCH1
VO1
+
• Electronic Circuit Breaker
DESCRIPTION
AGND
DGND
TPS2320
FAULT
The TPS2320 and TPS2321 are dual-channel hot-
ENABLE
TIMER
swap controllers that use external N-channel
MOSFETs as high-side switches in power
IN2
ISET2 ISENSE2 GATE2
DISCH2
applications. Features of these devices, such as
overcurrent protection (OCP), inrush-current control,
and the ability to discriminate between load transients
V2
3 V–5.5 V
VO2
+
and faults, are critical requirements for hot-swap
applications.
A
The TPS2320/21 devices incorporate undervoltage lockout (UVLO) to ensure the device is off at startup. Each
internal charge pump, capable of driving multiple MOSFETs, provides enough gate-drive voltage to fully enhance
the N-channel MOSFETs. The charge pumps control both the rise times and fall times (dv/dt) of the MOSFETs,
reducing power transients during power up/down. The circuit-breaker functionality combines the ability to sense
overcurrent conditions with a timer function; this allows designs such as DSPs, that may have high peak currents
during power-state transitions, to disregard transients for a programmable period.
Table 1. AVAILABLE OPTIONS
T_A
HOT-SWAP CONTROLLER DESCRIPTION
Dual-channel with independent OCP and adjustable PG
Dual-channel with interdependent OCP and adjustable PG
–40°C to 85°C _{Dual-channel with independent OCP}
PIN
COUNT
20
20
16
Single-channel with OCP and adjustable PG
14
PACKAGES
ENABLE
ENABLE
TPS2300IPW
TPS2301IPW
TPS2310IPW
TPS2311IPW
TPS2320ID
TPS2320IPW
TPS2321ID
TPS2321IPW
TPS2330ID
TPS2330IPW
TPS2331ID
TPS2331IPW
1
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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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