MAX6689UP9A+ Maxim Integrated Products, MAX6689UP9A+ Datasheet
MAX6689UP9A+
Specifications of MAX6689UP9A+
Related parts for MAX6689UP9A+
MAX6689UP9A+ Summary of contents
Page 1
... STBY Input for Hardware Standby Mode ♦ Small, 20-Pin QSOP and TSSOP Packages ♦ 2-Wire SMBus Interface PART MAX6689EP34+ MAX6689EP38+ Applications MAX6689EP9A+ MAX6689EP9E+ MAX6689UP34+ MAX6689UP38+ MAX6689UP9A+ MAX6689UP9E+ Note: All devices are specified over the -40°C to +125°C temperature range. +Denotes lead-free package DXP1 GND 2200pF MAX6689 ...
Page 2
Precision Temperature Monitor ABSOLUTE MAXIMUM RATINGS , SCK, SDA, ALERT, OVERT, STBY to GND .....-0. DXP_ to GND..............................................-0. DXN_ to GND ........................................................-0.3V to +0.8V SDA, ALERT, OVERT Current .............................-1mA to +50mA DXN Current ...
Page 3
Precision Temperature Monitor ELECTRICAL CHARACTERISTICS (continued +3.0V to +5.5V STBY CC CC +25°C.) (Note 1) PARAMETER SYMBOL SMBus INTERFACE (SCL, SDA), STBY Logic-Input Low Voltage Logic-Input High Voltage Input Leakage Current Output ...
Page 4
Precision Temperature Monitor (V = 3.3V +25°C, unless otherwise noted.) STBY SOFTWARE STANDBY SUPPLY CURRENT vs. SUPPLY VOLTAGE ...
Page 5
Precision Temperature Monitor (V = 3.3V +25°C, unless otherwise noted.) STBY REMOTE TEMPERATURE ERROR vs. COMMON-MODE NOISE FREQUENCY 5 100mV P ...
Page 6
Precision Temperature Monitor PIN NAME Combined Current Source and A/D Positive Input for Channel 5 Remote Diode. Connect to the anode 9 DXP5 of a remote-diode-connected temperature-sensing transistor. Leave floating or connect to V remote diode is used. Place ...
Page 7
Precision Temperature Monitor DXP1 DXN1 DXP2 DXN2 DXP3 DXN3 DXP4 DXN4 DXP5 DXN5 DXP6 DXN6 Figure 1. Internal Block Diagram rupted, and the temperature registers are not updated. The previous data is not changed and remains available. SMBus Digital ...
Page 8
Precision Temperature Monitor WRITE BYTE FORMAT S ADDRESS WR 7 BITS SLAVE ADDRESS: EQUIVA- LENT TO CHIP-SELECT LINE OF A 3-WIRE INTERFACE READ BYTE FORMAT S ADDRESS WR ACK COMMAND 7 BITS SLAVE ADDRESS: EQUIVA- COMMAND BYTE: SELECTS LENT ...
Page 9
Precision Temperature Monitor HIGH LOW SMBCLK SMBDATA SU:STA HD:STA SU:DAT A = START CONDITION MSB OF ADDRESS CLOCKED INTO SLAVE LSB OF ADDRESS CLOCKED INTO SLAVE ...
Page 10
Precision Temperature Monitor ALERT Response Address The SMBus alert response interrupt pointer provides quick fault identification for simple slave devices that lack the complex logic needed bus master. Upon receiving an interrupt signal, the host master ...
Page 11
Precision Temperature Monitor Table 3. Command Byte Register Bit Assignment ADDRESS REGISTER (HEX) Local 07 Remote 1 01 Remote 2 02 Remote 3 03 Remote 4 04 Remote 5 05 Remote 6 06 Configuration 1 41 Configuration 2 42 ...
Page 12
Precision Temperature Monitor Table 4. Configuration 1 Register BIT NAME 7 (MSB) STOP 6 POR TIMEOUT 5 4 Fast remote 1 Resistance 3 cancellation 2 Reserved 1 Reserved 0 Reserved Table 5. Configuration 2 Register BIT NAME 7 (MSB) ...
Page 13
Precision Temperature Monitor Table 6. Configuration 3 Register BIT NAME 7 (MSB) Reserved 6 Reserved 5 Mask OVERT 6 4 Mask OVERT 5 3 Mask OVERT 4 2 Reserved 1 Reserved 0 Mask OVERT 1 factor n is used ...
Page 14
Precision Temperature Monitor Table 7. Status 1 Register BIT NAME 7 (MSB) Reserved 6 Local ALERT 5 Remote 6 ALERT 4 Remote 5 ALERT 3 Remote 4 ALERT 2 Remote 3 ALERT 1 Remote 2 ALERT 0 Remote 1 ...
Page 15
Precision Temperature Monitor Table 8. Status 2 Register BIT NAME 7 (MSB) Reserved 6 Reserved 5 Remote 6 OVERT 4 Remote 5 OVERT 3 Remote 4 OVERT 2 Reserved 1 Reserved 0 Remote 1 OVERT Table 9. Status 3 ...
Page 16
Precision Temperature Monitor ADC Noise Filtering The integrating ADC has good noise rejection for low- frequency signals, such as power-supply hum. In envi- ronments with significant high-frequency EMI, connect an external 2200pF capacitor between DXP_ and DXN_. Larger capacitor ...
Page 17
Precision Temperature Monitor Twisted-Pair and Shielded Cables Use a twisted-pair cable to connect the remote sensor for remote-sensor distances longer than 8in or in very noisy environments. Twisted-pair cable lengths can be between 6ft and 12ft before noise introduces ...
Page 18
Precision Temperature Monitor (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages.) 18 ______________________________________________________________________________________ Package Information PACKAGE OUTLINE, QSOP .150", .025" LEAD PITCH 1 21-0055 ...
Page 19
... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 19 © 2007 Maxim Integrated Products Package Information (continued) PACKAGE OUTLINE, TSSOP 4 ...