Pin description – Rainbow Electronics MAX6659 User Manual
Page 5
MAX6657/MAX6658/MAX6659
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5
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