LTC1699EMS8-82#TR Linear Technology, LTC1699EMS8-82#TR Datasheet

IC PROGRAMMER VOLT SMBUS 8MSOP

LTC1699EMS8-82#TR

Manufacturer Part Number
LTC1699EMS8-82#TR
Description
IC PROGRAMMER VOLT SMBUS 8MSOP
Manufacturer
Linear Technology
Datasheet

Specifications of LTC1699EMS8-82#TR

Applications
Processor
Current - Supply
350µA
Voltage - Supply
2.7 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LTC1699EMS8-82#TRLTC1699EMS8-82
Manufacturer:
LT
Quantity:
10 000
APPLICATIO S
FEATURES
TYPICAL APPLICATIO
VRON
SDA
SCL
SEL
Fully Compliant with Intel 5-Bit Mobile
(LTC1699-80) and Desktop VRM8.4 (LTC1699-81)
and VRM9.0 (LTC1699-82) VID Specifications
Precision 0.35% Programmable Resistor Divider
for Use with 0.8V Referenced DC/DC Converters
Two Different Divider Settings Can Be Stored Using a
2-Wire SMBus Serial Interface (Rev 1.1)
Built-In Safeguards Minimize Misprogramming Due
to Bus Conflicts
Three Open-Drain Pins (CPU_ON, IO_ON, CLK_ON)
and a Global Control Pin (VRON)to Shutdown or
Soft-Start 3 DC/DC Converters Simultaneously
PGOOD Pin and 50 s PGOOD Timer
Available in MSOP-8 and SSOP-16 Package
Intel Desktop Pentium
Intel Mobile Pentium
SpeedStep
Desktop AMD Athlon
Software Programmable Remote Power Supply
Power Supplies with Voltage Margining
11
14
15
5
3
4
1
2
7
VRON
SDA
SCL
SEL
NC
NC
NC
GND
GND
LTC1699-81
U1
CPU_ON
CLK_ON
PGOOD
5VDC
SENSE
IO_ON
TM
V
C14, 0.1 F
FB
CC
Technology
8
13
9
10
6
12
16
U
R9
100k
PGOOD
®
TM
C8, 0.01 F
®
Power Supply with Intel
Power Supply
III Power Supply
2200pF
C15
220pF
R2, 11k
C18
39k
R1
5V
R4
10k
U
0.01 F
C6
C19, 0.01 F
SMBus Controlled High Efficiency DC/DC Converter
1
2
3
4
5
6
7
8
RUN/SS
PGOOD
V
FCB
I
SGND
I
V
TH
ON
RNG
FB
LTC1778
715k, 1%
U2
R5
EXTV
INTV
BOOST
PGND
SW
V
TG
BG
CC
CC
IN
16
15
14
13
12
11
10
9
R3
1
C7
0.22 F
D1
DESCRIPTIO
The LTC
cision ( 0.35% max), digitally programmed resistor di-
viders that comply with Intel 5-bit mobile (LTC1699-80),
desktop VRM8.4 (LTC1699-81) and VRM9.0 (LTC1699-82)
VID specifications. Each IC can switch the output of a
DC/DC converter between two set voltages. A digital input
pin, SEL, selects one of two divider settings stored into
registers via a 2-wire SMBus interface.
The SMBus interface uses Write Word protocol to setup
the registers and to turn the DC/DC converters on or off.
Read Word protocol is used to verify register contents and
to return the On/Off status of the converters. The
LTC1699-80, LTC1699-81 and LTC1699-82 incorporate
safeguards against errors due to bus conflicts.
Three open-drain N-channel outputs (CPU_ON, IO_ON
and CLK_ON) are provided to turn DC/DC converter sup-
plies on or off via their RUN/SS inputs. A global control pin,
VRON is used to turn the converters on or off simulta-
neously. An internal timer pulls the PGOOD pin low for
50 s if the divider setting changes or the converters are
turned on via the SMBus and the VRON pin.
AMD Athlon is a trademark of Advanced Micro Devices, Inc.
Pentium is a registered trademark of Intel Corporation.
Intel SpeedStep is a trademark of Intel Corporation.
C12
0.1 F
, LTC and LT are registered trademarks of Linear Technology Corporation.
V
IN
C13
4.7 F
6.3V
®
1699-80, LTC1699-81 and LTC1699-82 are pre-
Voltage Programmers
M1
M2
L1, 1 H
U
D2
C1
10 F
25V
C1, C2, C3, C4, C9: TAIYO YUDAN
C5: SANYO
C10, C11: PANASONIC, SPCL. POLY.
D1: CMDSH-3
D2: DIODES INC., B340A
L1: TOKO, 919AS-1RON
M1: Si4884DY
M2: Si4874DY
LTC1699 Series
C2
10 F
25V
SMBus VID
C3
10 F
25V
C9
22 F
6.3V
+
C4
10 F
25V
C10
180 F
4V
+
+
C5
10 F
35V
ALUM
C11
180 F
4V
1699 TA05
V
5V
TO 20V
GND
V
2.5V
AT 10A
GND
1
IN
OUT

Related parts for LTC1699EMS8-82#TR

LTC1699EMS8-82#TR Summary of contents

Page 1

... An internal timer pulls the PGOOD pin low for the divider setting changes or the converters are turned on via the SMBus and the VRON pin. , LTC and LT are registered trademarks of Linear Technology Corporation. AMD Athlon is a trademark of Advanced Micro Devices, Inc. Pentium is a registered trademark of Intel Corporation. ...

Page 2

... U Storage Temperature ...................... - Lead Temperature (Soldering, 10 sec).................. 300 ORDER PART NUMBER 1 SEL 2 NC LTC1699EMS8-80 3 SDA LTC1699EMS8-81 4 SCL LTC1699EMS8-82 5 VRON 6 PGOOD MS8 PART 7 NC MARKING 8 CPU_ON LTPV GN PACKAGE 16-LEAD PLASTIC SSOP LTPW T = 125 C, JMAX LTTB The denotes the specifications which apply over the full operating = 25 C ...

Page 3

ELECTRICAL CHARACTERISTICS temperature range, otherwise specifications are at T SYMBOL PARAMETER I SDA, PGOOD, CPU_ON, IO_ON, SK1 CLK_ON Sink Current 2. SDA, PGOOD, CPU_ON, IO_ON, SK2 CLK_ON Sink Current 5. ...

Page 4

LTC1699 Series W U TYPICAL PERFOR A CE CHARACTERISTICS Supply Current vs Supply Voltage 350 300 250 200 150 100 50 0 1.5 2 2.5 3 3.5 4 4.5 5 5 ...

Page 5

W U TYPICAL PERFOR A CE CHARACTERISTICS SCL, SDA and SEL Input Current vs Temperature 5. 5.5V PIN SCL PIN ...

Page 6

LTC1699 Series CTIO S Note: Pin numbers apply to 16-lead SSOP packages. SEL (Pin 1): Register Select Input. A TTL compatible logic input pin that is used to select resistor divider settings. ...

Page 7

CTIO AL BLOCK DIAGRA SDA SCL V CC POWER-ON RESET SEL SENSE R1 GND * LTC1699-80 10k LTC1699-81 20k LTC1699-82 10k TEST CIRCUIT W SMBus INTERFACE LATCH 5 5 ...

Page 8

LTC1699 Series DIAGRA S 8 ACK DCON VID0 VID1 VID2 VID3 VID4 ACK ACK DCON VID0 VID0 VID1 VID1 VID2 VID2 VID3 VID4 VID3 VID4 ACK ACK RD VID0 VID1 VID2 VID3 VID4 ACK ...

Page 9

DIAGRA S t BUF SDA t HD:STA SCL t LOW STOP START SCL SDA STOP SMBON 1.3V DCON 1.3V SEL 1.3V CPU_ON 1.3V IO_ON CLK_ON PGOOD 0.7V VRON V MAX V SENSE V (V ...

Page 10

LTC1699 Series U U APPLICATIO S I FOR ATIO In general, adjustable DC/DC Converters regulate the output voltage by dividing it down with a resistor divider and comparing the result against a precision reference voltage ( shown in ...

Page 11

U U APPLICATIO S I FOR ATIO output voltage of a DC/DC converter that generates the CPU core supply voltage. Its programmable ratios (see Table 1) are designed for 0.8V-referenced converters such as the LTC1628, LTC1702, LTC1735 and LTC1778 and ...

Page 12

LTC1699 Series U U APPLICATIO S I FOR ATIO SLAVE ON ADDRESS COMMAND S 1110001 R/W A 000XXXXX A SLAVE OFF ADDRESS COMMAND S 1110001 R/W A 011XXXXX A SLAVE SETUP ADDRESS COMMAND S 1110001 R/W A 001XXXXX A VID4 ...

Page 13

U U APPLICATIO S I FOR ATIO Register 1. After issuing the final acknowledgement bit, the SMBus interface returns to an idle state and waits for the next start bit. Read Word Protocol The Read Word protocol starts off like ...

Page 14

... Register 0 and Register 1 are set to 11111B. The DCON bit is pulled high so that the CPU_ON, IO_ON, CLK_ON and PGOOD pins are pulled low to shut down the DC/DC converters. Burst Mode is a trademark of Linear Technology Corporation. DCON PGOOD CPU_ON, IO_ON, CLK_ON ...

Page 15

U U APPLICATIO S I FOR ATIO Operating Sequence A typical control sequence for the LTC1699-80, LTC1699-81 and LTC1699- follows: • On power up, the DCON bit is preset to a high state by the power-on reset (POR) ...

Page 16

LTC1699 Series U TYPICAL APPLICATIO S 16 ...

Page 17

U TYPICAL APPLICATIO S LTC1699 Series 17 ...

Page 18

LTC1699 Series U TYPICAL APPLICATIO S SMBus Programmed CPU Core Voltage Regulator for 2-Step Applications (V C 0.1 F INTV CC 10k 100k C POWER 470k 220pF GOOD Q5 Q4 0.1 F 47pF V SENSE CC 180pF LTC1699-81 VRON FB ...

Page 19

... INTERLEAD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights. ...

Page 20

... VID Programmer for Intel VRM9.0 LTC1778 Wide Operating Range LTC1929/ 2-Phase High Efficiency Synchronous Step-Down Switching Regulators LTC1929- trademark of Linear Technology Corporation. SENSE Linear Technology Corporation 20 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 FAX: (408) 434-0507 www.linear-tech.com Enhanced Data Transmission Speed ...

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