LTC2933_15 Datasheet, PDF (32/32 Pages) Linear Technology – Programmable Hex Voltage Supervisor with EEPROM

LTC2933
TYPICAL APPLICATION
24V
12V
9V
DC/DC ^5V
3.3V
2.5V
1.8V
R1
168k
R2
2.4k
R3
8.87k
100k
0.1µF
4.7k
0.22µF
V1 V2 V3 V4 V5 V6
GPI1
GPIO1
GPI2 _LTC2933 GPIO2
V_DD33
GPIO3
SDA
GND ASEL SCL
NOTE: INTERNAL GPI01-3 PULL-UP ENABLED
24V
12V
9V
5V
3.3V
2.5V
1.8V
4.7k 4.7k
SYSTEM
RST
OV
ALERT
2933 F07
Figure 7. 7-Power Supply Monitor
RELATED PARTS
PART NUMBER
LTC2908
LTC2910
LTC2930
LTC2931
LTC2932
LTC2938
LTC2939
LTC2977
LTC2974
LTC2970
DESCRIPTION
Precision 6-Input Supply Monitor
Octal Positive/Negative Voltage Monitor
Configurable 6-Supply Monitor with Adjustable Reset
Timer, Manual Reset
Configurable 6-Supply Monitor with Adjustable Reset
and Watchdog Timers
Configurable 6-Supply Monitor with Adjustable Reset
Timer and Supply Tolerance
Configurable 4-Supply Monitor with Processor
Supervisory Functions
Configurable 6-Supply Monitor with Processor
Supervisory Functions
8-Channel PMBus Power System Manager
4-Channel PMBus Power System Manager
Dual I²C Power Supply Monitor and Margining Controller
COMMENTS
Reset: V_CC = 0.5V, ±1.5% Accuracy Over Temperature, Internal V_CC
Auto Select
8 Adjustable Inputs (0.5V), ±1.5% Accuracy, Input Glitch Rejection,
Pin-Selectable Input Polarity
16 Selectable Thresholds
16 Selectable Thresholds, Reset Timer, Separate Voltage Monitor
Outputs
16 Selectable Thresholds, Threshold Tolerance, Separate Voltage
Monitor Outputs
16 Selectable Thresholds, Adjustable Reset Timer, Watchdog Timeout,
Watchdog Status Output
16 Selectable Thresholds, Adjustable Reset Timer, Watchdog Timeout,
Watchdog Status Output
0.25% TUE 16-Bit ADC, Voltage/Temperature Monitoring and Supervision
0.25% TUE 16-Bit ADC, Voltage/Current/Temperature Monitoring and
Supervision
Monitors Voltage and Current on Two Power Supplies. Margins to
0.5% Accuracy
32 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 950_Fo3_r5_m-7_o4_re1_i7_{nformation www.linear.com/LTC2933}
[phone] ^● FAX: [phone] ^● www.linear.com/LTC2933
2933f
LT 0414 • PRINTED IN USA
 LINEAR TECHNOLOGY CORPORATION 2013