ISL6124IRZA Intersil, ISL6124IRZA Datasheet

ISL6124IRZA

Manufacturer Part Number

ISL6124IRZA

Description

IC POWER SUPPLY SEQUENCER 24QFN

Manufacturer

Intersil

Datasheet

1.ISL6123IRZA.pdf (22 pages)

Specifications of ISL6124IRZA

Applications

Power Supply Sequencer

Voltage - Supply

1.5 V ~ 5.5 V

Current - Supply

200µA

Operating Temperature

-40°C ~ 85°C

Mounting Type

Surface Mount

Package / Case

24-VQFN

Peak Reflow Compatible (260 C)

Yes

Rohs Compliant

Yes

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Voltage - Input

Current page: 1 of 22
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Power Sequencing Controllers

The Intersil ISL6123, ISL6124, ISL6125, ISL6126, ISL6127,

ISL6128 and ISL6130 are integrated four channel

controlled-on/controlled-off power-supply sequencers with

supply monitoring, fault protection and a “sequence

completed” signal (RESET). For larger systems, more than

four supplies can be sequenced by simply connecting a wire

between SYSRESET pins of cascaded IC's. The ISL6125

uses four open-drain outputs to control the on/off sequencing

of four supplies, while the other sequencers use a patented,

micropower 7x charge pump to drive four external low-cost

NFET switch gates above the supply rail by 5.3V. These IC's

can be biased from any supply 5V down to 1.5V. Individual

product descriptions follow.

The four channel ISL6123 (ENABLE input), ISL6124

(ENABLE input) and ISL6125 ICs offer the designer 4 rail

control when it is required that all four rails are in minimal

compliance prior to turn on and that compliance must be

maintained during operation. The ISL6123 and ISL6130

have a low power standby mode when disabled, suitable for

battery powered applications.

The ISL6125 operates like the ISL6124 but instead of

charge pump driven gate drive outputs it has open drain

logic outputs for direct interface to other circuitry.

In contrast to the majority, for both the ISL6126 and ISL6130

each of the four channels operate independently so that the

various GATEs will turn on once its individually associated

input voltage requirements are met.

The ISL6127 is a pre-programmed A-B-C-D turn-on and

D-C-B-A turn-off sequenced IC. Once all inputs are in

compliance and ENABLE is asserted, the sequencing starts

and each subsequent GATE will turn-on after the previous

one completes turning-on.

The ISL6128 has two groups of two channels each with its

independent I/O and is ideal for voltage sequencing into

redundant capability loads as all four inputs need to be

satisfied prior to turn on but a single group fault is ignored by

the other group.

External resistors provide flexible voltage threshold

programming of monitored rail voltages. Delay and

sequencing are provided by external capacitors for both

ramp-up and ramp-down.

Additional I/O is provided indicating and driving RESET state

in various configurations.

For volume applications, other programmable options and

features can be had. Contact the factory with your needs.

Data Sheet

1-888-INTERSIL or 1-888-468-3774

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

ISL6126, ISL6127, ISL6128, ISL6130

Features

• Enables Arbitrary Turn-on and Turn-off Sequencing of Up to

• Operates From 1.5V to 5V Supply Voltage

• Supplies V

• Adjustable Voltage Slew Rate for Each Rail

• Multiple Sequencers Can be Daisy-Chained to Sequence an

• Glitch Immunity

• Undervoltage Lockout for Each Supply

• 1µA Sleep State (ISL6123, ISL6130)

• Active High (ISL6123, ISL6130) or Low (ISL6124, ISL6125,

• Open Drain Version Available (ISL6125)

• Voltage Determined Sequence (ISL6126, ISL6130)

• Pre-programmed Sequence Available (ISL6127)

• Dual Channel Groupings (ISL6128)

• QFN Package

• Pb-Free Available (RoHS compliant)

Applications

• Graphics Cards

• FPGA/ASIC/microprocessor/PowerPC Supply Sequencing

• Network Routers

• Telecommunications Systems

Four Power Supplies (0.7V to 5V)

Infinite Number of Independent Supplies

ISL6126, ISL6127, ISL6128) ENABLE Input

October 15, 2008

ISL6123, ISL6124, ISL6125,

All other trademarks mentioned are the property of their respective owners.

Intersil (and design) is a registered trademark of Intersil Americas Inc.

+5.3V of Charge Pumped Gate Drive

FN9005.10

Related parts for ISL6124IRZA

ISL6124IRZA Summary of contents

Page 1

... CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. | 1-888-INTERSIL or 1-888-468-3774 Intersil (and design registered trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2001, 2003-2008. All Rights Reserved. All other trademarks mentioned are the property of their respective owners. FN9005.10 ...

Page 2

... ISL 6124IR ISL6125IR ISL 6125IR ISL6126IR ISL 6126IR ISL6127IR ISL 6127IR ISL6128IR ISL 6128IR ISL6123IRZA (Note 2) 61 23IRZ ISL6124IRZA (Note 2) 61 24IRZ ISL6125IRZA (Note 2) 61 25IRZ ISL6126IRZA (Note 2) 61 26IRZ ISL6127IRZA (Note 2) 61 27IRZ ISL6128IRZA (Note 2) 61 28IRZ ISL6130IRZA (Note 2) 61 30IRZ ...

Page 3

ISL6123, ISL6124, ISL6125, ISL6126, ISL6127, ISL6128, ISL6130 Pinouts ISL6123, ISL6124, ISL6125 (24 LD QFN) TOP VIEW ENABLE_1/ 1 ENABLE_1 GATE_A 2 DLY_OFF_C 3 EPAD (GND) DLY_OFF_D 4 GATE_B 5 GATE_C ...

Page 4

ISL6123, ISL6124, ISL6125, ISL6126, ISL6127, ISL6128, ISL6130 Pin Descriptions PIN NUMBER PIN ISL6123, ISL6124, ISL6126, NAME ISL6125 ISL6130 VDD 23 23 GND 10 10 ENABLE_1 ENABLE_1 ENABLE_2 ENABLE_2 RESET 24 24 RESET_2 NC NC UVLO_A 20 ...

Page 5

ISL6123, ISL6124, ISL6125, ISL6126, ISL6127, ISL6128, ISL6130 ISL612X Variant Feature Matrix GATE DRIVE OR OPEN PART CMOS/ DRAIN NAME EN/EN TTL OUTPUTS ISL6123 EN TTL Gate Drive ISL6124 EN CMOS Gate Drive ISL6125 EN CMO Open Drain ISL6126 EN CMOS ...

Page 6

... DD + 0.3V DD Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . +125°C + 0.3V Maximum Storage Temperature Range . . . . . . . . . .-65°C to +150° 0.3V Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below DD http://www.intersil.com/pbfree/Pb-FreeReflow.asp = T = -40°C to +85°C, unless otherwise specified. Parameters with MIN and/or MAX A J SYMBOL TEST CONDITIONS +25°C UVLOvth ...

Page 7

ISL6123, ISL6124, ISL6125, ISL6126, ISL6127, ISL6128, ISL6130 Electrical Specifications V = 1.5V to +5V limits are 100% tested at +25°C, unless otherwise specified. Temperature limits established by characterization and are not production tested. (Continued) PARAMETER RESET Output Low ...

Page 8

ISL6123, ISL6124, ISL6125, ISL6126, ISL6127, ISL6128, ISL6130 asserted and pulled low. Next, all four shutdown ramp capacitors on the DLY_OFF pins are charged with a 1µA source and when any ramp-capacitor reaches DLY_Vth, a latch is set and a current ...

Page 9

ISL6123, ISL6124, ISL6125, ISL6126, ISL6127, ISL6128, ISL6130 charging to the 1.27V reference for various capacitor values on the DLY_X pins. This table does not include the 10ms of enable lock out delay during a start-up sequence but represents the time ...

Page 10

ISL6123, ISL6124, ISL6125, ISL6126, ISL6127, ISL6128, ISL6130 UVLO_X>VUVLOVth ENABLE (ISL6123) ENABLE (ISL6124) DLYOFF_A DLYOFF_B DLYOFF_C DLYOFF_D GATE_C GATE_D GATE_A GATE_B RESET FIGURE 4. ISL6123, ISL6124 TURN-OFF TIMING DIAGRAM Typical Performance Curves 634 633 632 631 630 ...

Page 11

ISL6123, ISL6124, ISL6125, ISL6126, ISL6127, ISL6128, ISL6130 Typical Performance Curves Using the ISL612XSEQEVAL1Z Platform The ISL612XSEQEVAL1Z platform is the primary evaluation board for this family. The board has two complete, separate and electrically identical circuits. See Figure 16 for its ...

Page 12

ISL6123, ISL6124, ISL6125, ISL6126, ISL6127, ISL6128, ISL6130 between voltages sequencing is set by external capacitance values, so other than illustrated can be accomplished. Figures 10 and 11 illustrate the timing relationships between the EN input, RESET, DLY and GATE outputs ...

Page 13

ISL6123, ISL6124, ISL6125, ISL6126, ISL6127, ISL6128, ISL6130 Typical Performance Waveforms EN RESET FIGURE 12. ISL6125 LOGIC OUTPUTS SEQUENCED ON AND OFF AND RESET RELATIONSHIP A_VOUT B_VOUT C_VOUT D_VOUT FIGURE 14. ISL6127 PREPROGRAMMED ABCD TURN-ON AND DCBA TURN-OFF 13 (Continued) VIN_VAR ...

Page 14

ISL6123, ISL6124, ISL6125, ISL6126, ISL6127, ISL6128, ISL6130 IND = +1.5V INC = +2.5V INB = +3.3V EN1 11 EN2 7.681k 4.99k 6.98k 8.45k 4.99k 3.01k 1.47k 2.26k 22 ...

Page 15

ISL6123, ISL6124, ISL6125, ISL6126, ISL6127, ISL6128, ISL6130 2.5V_(IND) 1.5V_(INC) 3.3V_(INB) ENABLE SYSRST RESET AGND FIGURE 17. ISL6125EVAL1Z SCHEMATIC AND PHOTOGRAPH 15 5.0V_(INA ENABLE DLY_ON_B 15 C3 DLY_ON_D 16 C4 DLY_ON_C DLY_ON_A ...

Page 16

... Load Resistor RL6 2.5V Load Resistor RL5 1.5V Load Resistor 16 COMPONENT DESCRIPTION Intersil, ISL612X4 Supply Sequencer Socket SI4922DY or equivalent, Dual 8A, 30V, 0.018Ω, N-Channel MOSFET 8.45kΩ 1%, 0402 1.47kΩ 1%, 0402 7.68kΩ 1%, 0402 2.26kΩ 1%, 0402 6.98kΩ 1%, 0402 3.01kΩ ...

Page 17

... TABLE 3. ISL6125EVAL1Z COMPONENT LISTING Intersil, ISL6125, Four Supply Sequencer with Open Drain Outputs 8.45kΩ 1%, 0402 1.47kΩ 1%, 0402 7.68kΩ 1%, 0402 2.26kΩ ...

Page 18

ISL6123, ISL6124, ISL6125, ISL6126, ISL6127, ISL6128, ISL6130 ISL6131 or 32 MONITORING ON ALL RAILS PGOOD VMON SYSRST ISL6124 # N UVLO en RESET ENABLE ENABLE RESET SYSRST ISL6125 # N+1 POWER RESET SUPPLY UVLO FIGURE 18. ISL612X AND ISL613X VOLTAGE ...

Page 19

ISL6123, ISL6124, ISL6125, ISL6126, ISL6127, ISL6128, ISL6130 SYSRST ISL6124 # N UVLO ENABLE ENABLE RESET ENABLE SYSRST ISL6125 # N+1 POWER RESET SUPPLY UVLO RESET RESET FIGURE 20. MULTIPLE ISL612X SERIAL CONFIGURATION Voltage Tracking In some applications the various voltages ...

Page 20

ISL6123, ISL6124, ISL6125, ISL6126, ISL6127, ISL6128, ISL6130 Negative Voltage Sequencing The ISL612X family can use the charged pump GATE output to drive FETs that would control and sequence negative voltages down to a nominal -5V with minimal additional external circuitry. ...

Page 21

... Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use ...

Page 22

ISL6123, ISL6124, ISL6125, ISL6126, ISL6127, ISL6128, ISL6130 Package Outline Drawing L24.4x4 24 LEAD QUAD FLAT NO-LEAD PLASTIC PACKAGE Rev 4, 10/06 4.00 PIN 1 INDEX AREA (4X) 0.15 TOP VIEW ( TYP ) ( ...

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