The TPS2231 and TPS2236 ExpressCard power interface switches provide the total power management solution required by the ExpressCard specification

TPS2231

Manufacturer Part NumberTPS2231
DescriptionThe TPS2231 and TPS2236 ExpressCard power interface switches provide the total power management solution required by the ExpressCard specification
ManufacturerTexas Instruments
TPS2231 datasheet
 


Specifications of TPS2231

3v Rds(on)(typ)(mohm)45Ports1
InterfaceParallelAdjustable Current Limit(min)(a)2.5
Pin/package20QFN, 20TSSOP, 24HTSSOP  
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ExpressCard™ POWER INTERFACE SWITCH
FEATURES
1
• Meets the ExpressCard™ Standard
23
(ExpressCard|34 or ExpressCard|54)
Compliant with the ExpressCard™
Compliance Checklists
Fully Satisfies the ExpressCard™
Implementation Guidelines
Supports Systems with WAKE Function
TTL-Logic Compatible Inputs
Short Circuit and Thermal Protection
–40°C to 85°C Ambient Operating
Temperature Range
DESCRIPTION
The TPS2231 and TPS2236 ExpressCard power interface switches provide the total power management solution
required by the ExpressCard specification. The TPS2231 and TPS2236 ExpressCard power interface switches
distribute 3.3 V, AUX, and 1.5 V to the ExpressCard socket. Each voltage rail is protected with integrated
current-limiting circuitry.
The TPS2231 supports systems with single-slot ExpressCard|34 or ExpressCard|54 sockets. The TPS2236
supports systems with dual-slot ExpressCard sockets.
End equipment for the TPS2231 and TPS2236 include notebook computers, desktop computers, personal digital
assistants (PDAs), and digital cameras.
Host
Power
Source
Host
Chip
Set/Lock
Circuits
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PowerPAD is a trademark of Texas Instruments.
2
ExpressCard is a trademark of Personal Computer Memory Card International Association.
3
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.
RGP
PW
PWP
DAP
Check for Samples:
TPS2231 TPS2236
Available in a 20-pin TSSOP, a 20-pin QFN, or
24-pin PowerPAD™ HTSSOP (Single)
Available in a 32-pin PowerPAD™ HTSSOP
(Dual)
APPLICATIONS
Notebook Computers
Desktop Computers
Personal Digital Assistants (PDAs)
Digital Cameras
TV and Set Top Boxes
AUXIN
AUXOUT
3.3VIN
3.3VOUT
1.5VIN
1.5VOUT
TPS2231
PERST
SHDN
CPPE
STBY
CPUSB
SYSRST
OC
GND
RCLKEN
REFCLK+
REFCLK−
TPS2231
TPS2236
SLVS536J – JULY 2004 – REVISED SEPTEMBER 2009
Express Card
Copyright © 2004–2009, Texas Instruments Incorporated

TPS2231 Summary of contents

  • Page 1

    ... Temperature Range DESCRIPTION The TPS2231 and TPS2236 ExpressCard power interface switches provide the total power management solution required by the ExpressCard specification. The TPS2231 and TPS2236 ExpressCard power interface switches distribute 3.3 V, AUX, and 1 the ExpressCard socket. Each voltage rail is protected with integrated current-limiting circuitry ...

  • Page 2

    ... See the Package Materials Information portion of this data sheet for specific information. (5) The TPS2231MRGP-2 is identical to the TPS2231MRGP with the exception that the orientation of the part in the reel is rotated 90° and does not have an internal pull-up resistor between AUX IN and SYSRST. See the Package Materials Information portion of this data sheet for specific information ...

  • Page 3

    ... I(/SHDNx) (discharge) T (–40, 120°C]. Output powered into a short J Rising temperature, not in overcurrent condition Overcurrent condition V with 100-mΩ short O(3.3VOUT) V with 100-mΩ short, TPS2231 st threshold within 1.1 O(1.5VOUT) = 25°C V with 100-mΩ short, TPS2236 J O(1.5VOUT) V with 100-mΩ short O(AUXOUT) ...

  • Page 4

    ... Input RCLKENx = 0 V, sourcing CPUSB or CPPE = 0 V, sinking Inputs CPUSB or CPPE = 3.6 V, sourcing Output μA O(RCLKEN) 3.3VOUT falling AUXOUT falling 1.5VOUT falling 3.3VOUT, AUXOUT, or 1.5VOUT falling Product Folder Link(s): TPS2231 TPS2236 = I(/CPPEx) I(/CPUSBx) MIN TYP MAX 125 200 17.5 5.5 85 150 10 2 ...

  • Page 5

    ... AUXIN level, below which all switches are off Product Folder Link(s): TPS2231 TPS2236 TPS2231 TPS2236 SLVS536J – JULY 2004 – REVISED SEPTEMBER 2009 = ...

  • Page 6

    ... L(AUXOUT) O(AUXOUT 0.1 μF, I L(1.5VOUT) O(1.5VOUT) = 100 μ L(3.3VOUT 100 μ L(AUXOUT 100 μ L(1.5VOUT) L Product Folder Link(s): TPS2231 TPS2236 www.ti.com = I(/CPPEx) I(/CPUSBx) MIN TYP MAX = 0.1 6 I(3.3VIN) /0.250 A ...

  • Page 7

    ... NC 3.3VOUT1 13 NC 3.3VIN 3.3VIN 12 1.5VIN 3.3VOUT2 1 1 1.5VOUT PERST2 NC PERST1 AUXOUT1 AUXIN AUXOUT2 Product Folder Link(s): TPS2231 TPS2236 TPS2231 TPS2236 SLVS536J – JULY 2004 – REVISED SEPTEMBER 2009 TPS2231 PWP PACKAGE (TOP VIEW RCLKEN 4 21 AUXIN 5 ...

  • Page 8

    ... Internally pulled up to AUXIN. OC1 19 O Overcurrent status output for slot 0 (open drain) OC2 20 O Overcurrent status output for slot 1 (open drain 12, 22, No connection 29 Product Folder Link(s): TPS2231 TPS2236 www.ti.com DESCRIPTION Copyright © 2004–2009, Texas Instruments Incorporated ...

  • Page 9

    ... Single ExpressCard Power Switch 3.3VIN AUXIN 1.5VIN CPUSB CPPE STBY SHDN GND Note power good Note current sense Note C: TPS2231MRGP-2 does not have a pull-up resistor. Copyright © 2004–2009, Texas Instruments Incorporated FUNCTIONAL BLOCK DIAGRAM PG S1 (Note A) (Note ...

  • Page 10

    ... S7 PG2 CS S8 PG2 CS S9 Current Limit Thermal Limit CHANNEL-1 FAULT Delay Control Logic Delay UVLO POR CHANNEL-2 FAULT Product Folder Link(s): TPS2231 TPS2236 www.ti.com 3.3VOUT1 S4 AUXOUT1 S5 1.5 VOUT1 S6 3.3VOUT2 S10 AUXOUT2 S11 1.5VOUT2 S12 OC1 AUXIN RCLKEN1 PERST1 SYSRST RCLKEN2 PERST2 OC2 Copyright © ...

  • Page 11

    ... However cold start situation, the system reset can also be used to extend the length of time that PERST is asserted. Copyright © 2004–2009, Texas Instruments Incorporated DETAILED PIN DESCRIPTIONS Product Folder Link(s): TPS2231 TPS2236 TPS2231 TPS2236 SLVS536J – JULY 2004 – REVISED SEPTEMBER 2009 Submit Documentation Feedback ...

  • Page 12

    ... GND GND Truth Table for Logic Outputs (1) RCLKEN X Hi-Z 0 Hi-Z 0 Product Folder Link(s): TPS2231 TPS2236 (2) VOLTAGE OUTPUTS MODE 3.3VOUT 1.5VOUT Off Off GND GND Shutdown GND GND No Card Off Off Standby On On Card Inserted LOGIC OUTPUTS PERST ...

  • Page 13

    ... AUXOUT voltage is provided to the card and the 3.3VOUT and 1.5VOUT switches are turned off (Standby mode). TPS2231-3 only: If 3.3VIN is removed, the 3.3VOUT switch is turned off; and, the 1.5VOUT switch is unaffected. If 1.5VIN is removed, the 1.5VOUT switch is turned off; and, the 3.3VOUT switch is unaffected ...

  • Page 14

    ... VOLTAGE WAVEFORMS V I(3.3V/AUXIN) VIN GND V I(3.3V) V O(1.5VOUT) GND I(3.3V) V GND V I(3.3V) VIN GND V I(3.3V) V GND TYPICAL CHARACTERISTICS Table 1. Table of Graphs Product Folder Link(s): TPS2231 TPS2236 I O(1.5VOUT LOAD CIRCUIT V I(1.5V) 50% GND t pd(off) t pd(on) V I(1.5V) 90% 10% GND Propagation Delay (1.5VOUT I(1 ...

  • Page 15

    ... V O(PERST) 2 V/div PERST ASSERTED BY SYSRST WHEN POWER I(SYSRST) 2 V/div V O(PERST) 2 V/div Product Folder Link(s): TPS2231 TPS2236 TPS2231 TPS2236 SLVS536J – JULY 2004 – REVISED SEPTEMBER 2009 vs TIME t − Time − 5 ms/div Figure 3. vs TIME t − Time − 500 ns/div Figure 5. ...

  • Page 16

    ... OC RESPONSE WHEN POWERED INTO A SHORT (3.3VOUT) V O(OC) 2 V/div R = 3.6 W L(3.3VOUT 2.7 W L(1.5VOUT) I O(3.3VOUT L(AUXOUT) 0.5 A/div L(3.3V/1.5V/AUXOUT) Product Folder Link(s): TPS2231 TPS2236 www.ti.com vs TIME R = 3.6 W L(3.3VOUT 2.7 W L(1.5VOUT L(AUXOUT L(3.3V/1.5V/AUXOUT) t − Time − 500 ms/div Figure 7. vs TIME t − ...

  • Page 17

    ... Product Folder Link(s): TPS2231 TPS2236 TPS2231 TPS2236 SLVS536J – JULY 2004 – REVISED SEPTEMBER 2009 vs JUNCTION TEMPERATURE 3.3V_AUX 1.5VIN 3.3VIN − 100 T − Junction Temperature − Figure 11 ...

  • Page 18

    ... AUX POWER SWITCH CURRENT LIMIT TRIP 800 760 720 680 640 600 − 100 120 Product Folder Link(s): TPS2231 TPS2236 www.ti.com vs JUNCTION TEMPERATURE − 100 T − Junction Temperature − Figure 15. vs JUNCTION TEMPERATURE − ...

  • Page 19

    ... ExpressCard slot. Figure 18 through Figure 23 illustrate the timing relationships between power/logic inputs and outputs of ExpressCard. Copyright © 2004–2009, Texas Instruments Incorporated APPLICATION INFORMATION Product Folder Link(s): TPS2231 TPS2236 TPS2231 TPS2236 SLVS536J – JULY 2004 – REVISED SEPTEMBER 2009 Submit Documentation Feedback 19 ...

  • Page 20

    ... PERST REFCLK b Figure 19. Timing Signals - Host Power Is On Prior to Card Insertion 20 Submit Documentation Feedback 2009.................................................................................................................................................. Product Folder Link(s): TPS2231 TPS2236 www.ti.com Tpd Units Min Max System Dependent a b 100 ms System Dependent c System Dependent 100 ...

  • Page 21

    ... RCLKEN PERST REFCLK Figure 21. Timing Signals - Host-Controlled Power Down Copyright © 2004–2009, Texas Instruments Incorporated Product Folder Link(s): TPS2231 TPS2236 TPS2231 TPS2236 SLVS536J – JULY 2004 – REVISED SEPTEMBER 2009 Tpd Min Max Units ns a 500 b ...

  • Page 22

    ... RCLKEN PERST REFCLK Figure 23. Timing Signals - Surprise Card Removal 22 Submit Documentation Feedback 2009.................................................................................................................................................. Product Folder Link(s): TPS2231 TPS2236 www.ti.com Tpd Min Max Units a Load Dependent b System Dependent c ns 500 d 500 ns System Dependent e System Dependent ...

  • Page 23

    ... Added Note C to the Function Block Diagram ...................................................................................................................... (2) The TPS2231MRGP-2 is identical to the TPS2231MRGP with the exception that the orientation of the part in the reel is rotated 90° and does not have an internal pull-up resistor between AUX IN and SYSRST. See the Package Materials Information portion of this data sheet for specific information ...

  • Page 24

    ... ACTIVE TPS2231MRGPT ACTIVE TPS2231MRGPT-1 ACTIVE TPS2231MRGPT-1G4 ACTIVE TPS2231MRGPT-3 ACTIVE TPS2231MRGPTG4 ACTIVE TPS2231PW ACTIVE TPS2231PWG4 ACTIVE TPS2231PWP ACTIVE TPS2231PWPG4 ACTIVE TPS2231PWPR ACTIVE TPS2231PWPRG4 ACTIVE TPS2231PWR ACTIVE TPS2231PWRG4 ACTIVE TPS2231RGPR ACTIVE TPS2231RGPRG4 ACTIVE TPS2231RGPT ACTIVE TPS2231RGPTG4 ACTIVE TPS2236DAP ACTIVE PACKAGE OPTION ADDENDUM Package ...

  • Page 25

    Orderable Device Status TPS2236DAPG4 ACTIVE TPS2236DAPR ACTIVE TPS2236DAPRG4 ACTIVE (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy ...

  • Page 26

    ... QFN RGP TPS2231MRGPR-1 QFN RGP TPS2231MRGPR-2 QFN RGP TPS2231MRGPR-3 QFN RGP TPS2231MRGPT QFN RGP TPS2231MRGPT-1 QFN RGP TPS2231MRGPT-3 QFN RGP TPS2231PWPR HTSSOP PWP TPS2231PWR TSSOP PW TPS2231RGPR QFN RGP TPS2231RGPT QFN RGP TPS2236DAPR HTSSOP DAP PACKAGE MATERIALS INFORMATION Pins SPQ Reel Reel ...

  • Page 27

    ... Device Package Type TPS2231MRGPR QFN TPS2231MRGPR-1 QFN TPS2231MRGPR-2 QFN TPS2231MRGPR-3 QFN TPS2231MRGPT QFN TPS2231MRGPT-1 QFN TPS2231MRGPT-3 QFN TPS2231PWPR HTSSOP TPS2231PWR TSSOP TPS2231RGPR QFN TPS2231RGPT QFN TPS2236DAPR HTSSOP PACKAGE MATERIALS INFORMATION Package Drawing Pins SPQ Length (mm) RGP 20 3000 ...

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    ... Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI’ ...