Rainbow Electronics MAX6659 - Manual (Page 5)

MAX6657/MAX6658/MAX6659
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PIN
MAX6657
MAX6658
MAX6659
NAME FUNCTION
1 1 V CC
Supply Voltage Input, +3V to +5.5V. Bypass to GND with a 0.1µF capacitor. A 200 Ω
series resistor is recommended but not required for additional noise filtering. See
Typical Operating Circuit.
2 3 DXP
Combined Remote-Diode Current Source and A/D Positive Input for Remote-Diode
Channel. DO NOT LEAVE DXP FLOATING; connect DXP to DXN if no remote diode
is used. Place a 2200pF capacitor between DXP and DXN for noise filtering.
3 4 DXN
Combined Remote-Diode Current Sink and A/D Negative Input. DXN is internally
biased to one diode drop above ground.
4 6 OVERT1
Overtemperature Active-Low Output, Open-Drain. Output is logic low only when
temperature is above the software programmed threshold.
5 7, 8 GND Ground
6 9 ALERT
SMBus Alert (Interrupt) Active-Low Output, Open-Drain. Asserts when temperature
exceeds user-set limits (high or low temperature). Stays asserted until acknowledged
by either reading the Status register or by successfully responding to an Alert
Response address. See
ALERT Interrupts.
7 12 SMBDATA SMBus Serial-Data Input/Output, Open-Drain
8 14 SMBCLK SMBus Serial-Clock Input
— 5 ADD
SMBus Address-Select Pin. The MAX6659 is set to one of three available addresses
(connect to V
CC , GND, or leave open). See Slave Addresses section.
— 10 OVERT2
Overtemperature Active-Low Output, Open-Drain. Output is logic low only when
temperature is above the software programmed threshold.
— 15 STBY
Hardware Standby Input. Temperature and comparison threshold data are retained in
standby mode. If
STBY is low, the IC is put into standby mode.
— 2, 11, 13, 16 N.C. Not internally connected. Do not make connections to these pins.
Pin Description
±1°C, SMBus-Compatible Remote/Local Temperature
Sensors with Overtemperature Alarms