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Details, datasheet, quote on part number:TPS2346PWR
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| Part: | TPS2346PWR |
| Category: | Power Management => Power Distribution/Switches => Hot-Swap Controllers => External FET |
| Description: | ti TPS2346, Optical Network Hot Swap Controller |
| Company: | Texas Instruments, Inc. |
| Datasheet: | Download TPS2346PWR datasheet File size : 479 kB |
| Request For quote: | Find where to buy TPS2346PWR
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Datasheet text preview:
TPS2346
SLUS529 MAY 2002
OPTICAL NETWORK HOT SWAP POWER MANAGER
FEATURES D Enables Hot Swap in High Availability Optical D D D D D D D D D D D D
Network Systems Programmable Current Slew Rate Power Supply Sequencing Sense Resistors Set Peak Current (IMAX) Overcurrent Circuit Breaker at 2× IMAX Precharge Output Logic Low Power Good Output Logic Low Enable Input On-Chip Charge Pump Low Sleep Mode Current Undervoltage Lockout (UVLO) Minimal External Parts Count 24-pin TSSOP Package
DESCRIPTION
The TPS2346 Optical Network Hot Swap Power Manager (HSPM) provides highly-integrated supply control of three positive (3.3-V, 5-V, and 5.15-V) and one negative (5.2-V) supply rails with a minimum number of external components. A linear current amplifier (LCA) in each of the four device channels provides closed-loop control of load current during insertion and extraction events. This allows the designer to configure the plug-in card's maximum inrush slew rate and magnitude according to the requirements of the system supplies.
APPLICATIONS D Hot Swap of ONET Modules D Supply Power-Up/Power-Down Sequencing
TYPICAL APPLICATION
R1 5.15V 3 m 5V R6 10 k R7 1.2 k R2 2 m Q2 5V D1 6.8 V C1 0.1 µF ENABLE PG GND C2 0.39 µF D2 6.8 V BACKPLANE 3.3 V R4 0.2 5.2 V R8 10 AD[00] AD[XX:01]
ADDRESS/DATA BUS
Q1
PLUGIN MODULE 5.15 V
VIN1
CS1 GATE1
VS1
VIN2
CS2
GATE2 VS2 CPUMP BACKEND POWER PLANES 3.3 V 5.2 V C3 0.1 µF
ENABLE PG RGND IRAMP PRECHG VIN4 CS4 GATE4 VS4 VIN3 CS3 TPS2346
AGND CPGND VS3 GATE3
R5 10 k
Q4
R3 2 m
Q3
RP
BRIDGE DEVICE EXAMPLE SIGNAL LINE AD[00] AD[XX:01] UDG02080
PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.
Copyright 2002, Texas Instruments Incorporated
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TPS2346
SLUS529 MAY 2002
description (continued)
Fully programmed sequencing control ramps the back-end plane voltages in order, and during shutdown from a healthy state, turns off the back-end supplies in the reverse order. In addition, electronic circuit breakers provide continuous protection for the system supplies during the plug-in operation. The TTL/CMOS-compatible ENABLE input and the board power good signal (PG) can interface directly to the individual backplane slot control and status signals. A precharge pin (PRECHG) provides a 1-V bias supply for the I/O signals.
absolute maximum ratings over operating free-air temperature (unless otherwise noted)
Input voltage range, VIN1, VIN2, VIN3, ENABLE, PG, PRECHG . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to 15 V VS1, VS2, VS3, CS1, CS2, CS3 . . . . . 0.3 V to VIN +0.3 V of corresponding channel CPUMP, GATE1, GATE2, GATE3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to 25 V VIN4, VS4, GATE4, CS4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 V to 0.3 V IRAMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to VI(VIN1) +0.3 V Operating junction temperature range, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55°C to 150°C Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65°C to 150°C Lead temperature soldering 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . 300°C
Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. All voltages are with respect to GND. Currents are positive into, and negative out of the specified terminal. AVAILABLE OPTIONS PACKAGED DEVICES TA 40_C to 85_C TSSOP (PW) TPS2346PW
{The PW package is available taped and reeled. Add TR suffix to device type (e.g. TPS2346PWTR) to order quantities of 2,000 devices per reel and 90 units per tube. PW PACKAGE (TOP VIEW)
GATE1 VS1 VIN1 CS1 IRAMP ENABLE RGND PRECHG CS3 VIN3 VS3 GATE3
1 2 3 4 5 6 7 8 9 10 11 12
24 23 22 21 20 19 18 17 16 15 14 13
GATE2 VS2 VIN2 CS2 CPUMP CPGND AGND PG CS4 VIN4 VS4 GATE4
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TPS2346
SLUS529 MAY 2002
electrical characteristics VI(VIN1) = 5.15 V, VI(VIN2) = 5 V, VI(VIN3) = 3.3 V, VI(VIN4) = 5.2 V, TA = 40_C to 85_C (unless otherwise noted)
input supply
PARAMETER ICC1 ICC2 ICC3 ICC4 ICC1(SLP) ICC2(SLP) ICC3(SLP) ICC4(SLP) Supply current, VIN1 Supply current, VIN2 Input current, VIN3 Input current, VIN4 Sleep mode current, VIN1 Sleep mode current, VIN2 Sleep mode current, VIN3 Sleep mode current, VIN4 VI(ENABLE) = 5 V VI(ENABLE) = 5 V VI(ENABLE) = 5 V VI(ENABLE) = 5 V TEST CONDITIONS MIN TYP 6 1 0.5 1.5 0.5 1 100 400 µA MAX 8 2 1 3 mA UNIT
charge pump
PARAMETER VO(MAX) ISOURCE ZO Maximum output voltage Peak output current Charge pump source impedance TEST CONDITIONS IO(CPUMP) = 25 µA VO(CPUMP) = 15 V MIN 17 120 TYP MAX 23 UNIT V µA k
IO (CPUMP+17 V) * IO (CPUMP+16 V)
TEST CONDITIONS VI(VIN2) = 4 V, VI(VIN2) = 4 V, IO(PRECHG) = 5 mA VI(VIN2) = 4 V, IO(PRECHG) = 5 mA VI(VIN2) = 4 V, VI(VIN1/3/4) = 0 V VI(VIN1/3/4) = 0 V, VI(VIN1/3/4) = 0 V, VI(VIN1/3/4) = 0 V MIN 0.9 0.8 0.8
1V
200
TYP 1 1 1 200 MAX 1.1 1.2 1.2
precharge output
PARAMETER VO(PCHG)1 VO(PCHG)2 VO(PCHG)3 tSTART Output voltage Output voltage, sourcing Output voltage, sinking Startup time UNIT
V
µs
linear current amplifiers 1, 2, 3
PARAMETER VMAX1 VMAX2 VMAX3 IPK ISINK IFAULT VOL VOH IMAX sense voltage (VIN1 CS1) IMAX sense voltage (VIN2 CS2) IMAX sense voltage (VIN3 CS3) Output peak current Output current sink Output current sink Low-level output voltage High-level output voltage Fault shutdown Fault shutdown, IO(GATEx) = 4 µA IO(GATEx) = 10 mA VCPUMP1 TEST CONDITIONS MIN 16 16 16 25 0.2 150 0.5 V TYP 20 20 20 MAX 24 24 24 5 10 mA mV UNIT
linear current amplifier 4
PARAMETER VMAX4 IOL1 IOL2 IMAX sense voltage (VIN4 CS4) Output leakage current Output leakage current Fault shutdown Sleep mode TEST CONDITIONS MIN 75 10 10 TYP 150 MAX 225 10 10 UNIT mV µA
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