Programmable Hex Voltage Supervisors EEPROM Stores User Configuration and Fault Log The LTC®2933 and LTC2936 programmable voltage supervisors monitor six supply rails with EEPROM configurable voltage thresholds and two rails with resistor adjustable thresholds (via GPI). Independent overvoltage (OV) and undervoltage (UV) fault thresholds are available on each of the six EEPROM configurable inputs with ±1% guaranteed accuracy over temperature. Two GPIs can be configured as manual reset, UV disable, margin enable, write protect (LTC2936 only) or auxiliary comparator inputs. Three GPIOs can be mapped to respond to any combination of power supply faults and GPI inputs, providing maximum design flexibility. Features OV/UV Threshold Accuracy vs Temperature Supervise 6 Power Supplies with ±1% Guaranteed Accuracy Over Temperature I2C/SMBus Adjustable UV and OV Thresholds EEPROM for Storing Configuration and Fault History 256 Programmable Thresholds per Channel Supported by LTpowerPlay™ GUI Six Comparator Outputs (LTC2936) Two General Purpose Inputs Three General Purpose Inputs/Outputs Two Auxiliary Comparators to Monitor Two Voltages Programmable Output Type, Polarity and Delay n 1.010 n NORMALIZED THRESHOLD n n n n n n n n 1.005 1.000 0.995 0.990 –50 LTC2933 LTC2936 Power Supply 3.4V to 13.9V 3.13V to 13.9V Separate Supply Input No Yes Threshold Range 0.2V to 13.9V 0.2V to 5.8V Comparator Outputs None 6 Response Time 25µs 7.5µs L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and LTpowerPlay is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. –25 0 25 50 TEMPERATURE (°C) I2C Addresses 3 9 75 100 Package SSOP-16, 5mm × 4mm DFN-16 SSOP-24, 4mm × 5mm QFN-24 Adj Adj 1.5 1 Adj Adj 50 700 • • • • • LTC2936 6 (6) Adj 1 Adj 700 LTC2939 LTC2908 6 (4) 6 (5) 1.5 1.5 Adj 200ms 80 26 LTC2930 LTC2931 LTC2932 LTC2900 LTC2938 LTC2901 6 (4) 6 (4) 6 (4) 4 (2) 4 (2) 4 (2) 5 to 1.2 5, 3.3, 2.5, 1.8, 1.5 5 to 1.5 5 to 1.5 5 to 1.5 5 to 1.5 5 to 1.2 5 to 1.5 1.5 1.5 1.5 1.5 1.5 1.5 Adj Adj Adj Adj Adj Adj 52 52 52 43 80 43 LTC2902 4 (2) 5 to 1.5 1.5 Adj 43 LTC2903 4 (3) 1.5 200ms 20 LTC2914 LTC2911 4 (4) 3 (2) 1.5 1.5 Adj 70 30 LTC1326 LTC1536 LTC1726 LTC1727 LTC1728 LTC2919 3 (1) 3 (1) 3 (1) 3 (1) 3 (1) 3 (2) 5, 3.3, 2.5, 1.8, –5.2 Adj 5, 3.3, 2.5, 1.8, 1.2 5, 3.3, 2.5 5, 3.3 5, 3.3, 2.5 5, 3.3, 3, 2.5 5, 3.3, 3, 2.5, 1.8 5, 3.3, 2.5 0.75 0.75 1.5 1.5 1.5 1.5 200ms 200ms Adj 200ms 200ms Adj 40 200 20 15 15 50 LTC2909 3 (2) 5, 3.3, 2.5 1.5 Adj 50 LTC2966 2 (2) Adj 1.4 LTC2960 2(2) Adj 1.5 LTC2913 2 (2) Adj 1.5 LTC1696 LTC2904 LTC2905 LTC2906 LTC2907 LTC2934 2 (2) 2 (0) 2 (0) 2 (1) 2 (1) 2 (2) Adj 5 to 1 5 to 1 5, 3.3, 2.5 5, 3.3, 2.5 Adj 2 1.5 1.5 1.5 1.5 1.5 LTC2965 1 (1) Adj 1.4 LTC2935 LTC2915 LTC2916 LTC2917 LTC2918 LTC2912 LTC1232 1 (1) 1 (1) 1 (1) 1 (1) 1 (1) 1 (1) 1 (0) 1.6 to 3.5 12 to 0.5 12 to 0.5 12 to 0.5 12 to 0.5 Adj 5 1.5 1.5 1.5 1.5 1.5 1.5 2.5 LTC1235 LTC690 LTC691 LTC694 LTC695 1 (0) 1 (0) 1 (0) 1 (0) 1 (0) 5 5 5 5, 3.3 5, 3.3 2 2 2 2 2 Adj 200ms Adj 200ms Adj 15ms/ 200ms 200ms Adj Adj Adj Adj Adj 600ms 200ms 50ms 50ms 200ms 200ms • • • • Adj • • • • • 44 • 1.1mA 65 65 50 54 0.5 • • • 6 600 600 600 600 600 • • • • • • • • • Adj Adj • C, I, H 3 × 3 DFN-12 C, I, H TSSOP-20 C, I, H TSSOP-20 C, I MSOP-10, 3 × 3 DFN-10 C, I, H MSOP-16 C, I SSOP-16 • UV/OV Outputs, Optional Shunt Reg For High Voltage Operation Margining Latch, Guaranteed Reset for VCC ≥ 0.5V Separate Voltage Monitor Outputs 0.85 0.5 30 30 30 30 40 500 16 Pin-Selectable Reset Thresholds Combinations 16 Pin-Selectable Reset Thresholds Combinations, Separate Voltage Monitor Outputs 16 Pin-Selectable Reset Thresholds Combinations, Separate Voltage Monitor Outputs 16 Pin-Selectable Reset Threshold Combinations, Open Drain or Push-Pull Reset Output 16 Pin-Selectable Reset Thresholds 16 Pin-Selectable Reset Thresholds, Separate Voltage Monitor Outputs, Open Drain or Push-Pull Reset Output • 16 Pin-Selectable Reset Thresholds, Separate Voltage Monitor Outputs, Open Drain or Push-Pull Reset Output Guaranteed Reset for VCC ≥ 0.5V Reset and Soft Reset Outputs Reset and Soft Reset Outputs, Added Tests for PCI Conformity • • • • • • • • • • Package • Resistor Programmable Thresholds, RST & RST Outputs, Shunt Regulator C, I, H SSOP-16, 5 × 3 DFN-16 • I2C Programmable, EEPROM, 256 Thresholds, One High Voltage Input, Two GPIs, C, I SSOP-16, 5 × 4 DFN-16 Three GPIOs, Two Auxilliary Comparators with Resistor Adjustable Thresholds • I2C Programmable, EEPROM, 256 Thresholds, Six Comparator Outputs, Two GPI, C, I SSOP-24, 4 × 5 QFN-24 Three GPIO, Two Auxilliary Comparators with Resistor Adjustable Thresholds • 16 Pin-Selectable Reset Threshold Combinations, Adj Reset and Watchdog Timers C, I, H MSOP-16 Guaranteed Reset for VCC ≥ 0.5V C, I TSOT-8, 3 × 2 DFN-8 • • • • • • • Adj Adj 12 15ms/ 200ms • Adj Comments Temp Grades* Watchdog Timer Power Fail Warning Manual Reset OV Monitor Negative Monitor Reset Pulse Width Supply Current (µA) Accuracy (%) # of Voltage Monitors (# of Adj Inputs) Part # LTC®2910 8 (8) LTC2933 6 (6) Monitor Voltages (V) • Pin-Selectable Polarity for Negative and UV/OV Monitoring, Shunt Regulator, VCC Separate Voltage Monitor Outputs, Guaranteed Reset for VCC ≥ 0.5V • Pin-Selectable Polarity for Negative and UV/OV Monitoring, Shunt Regulator, VCC Monitor, Guaranteed Reset for VCC ≥ 0.5V • 3.5V to 100V Operation, Resistor Programmable Thresholds, Internal High Value Resistive Dividers, Pin-Selectable Output Polarity 2.5V to 36V Operation, Resistor Programmable Thresholds Resistor Programmable Reset Thresholds, UV/OV Outputs, Shunt Regulator, Guaranteed Reset for VCC ≥ 0.5V Resistor Programmable Reset Thresholds, Gate Drive for Crowbar 9 Pin-Selectable Reset Thresholds 9 Pin-Selectable Reset Thresholds Pin-Selectable and Resistor Programmable Reset Thresholds Pin-Selectable and Resistor Programmable Reset Thresholds Resistor Programmable Reset Threshold • 3.5V to 100V Operation, Resistor Programmable Thresholds, Internal High Value Resistive Dividers, Pin-Selectable Output Polarity 8 Pin-Selectable Reset Thresholds 9 Pin-Selectable Reset Thresholds, 3 Tolerances 9 Pin-Selectable Reset Thresholds 9 Pin-Selectable Reset Thresholds, 3 Tolerances 9 Pin-Selectable Reset Thresholds Resistor Programmable Reset Threshold, UV/OV Outputs, Shunt Regulator Conditional Battery Backup, RAM Protect Battery Backup, 4.65V Reset Battery Backup, RAM Protect, 4.65V Reset Battery Backup, 4.65V Reset Battery Backup, RAM Protect, 4.65V Reset C, I SSOP-16 C, I TSOT-6 C, I, H C, I, H SSOP-16, 5 × 3 DFN-16 3 × 2 DFN-8, TSOT-8 C, I MSOP-8, SO-8 C, I MSOP-8, SO-8 C, I, H MSOP-8, SO-8 C, E, I MSOP-8, SO-8 C, E, H TSOT-5 C, I, H MSOP-10, 3 × 2 DFN-10 C, I TSOT-8, 3 × 2 DFN-8 C, I, H SO-10, 3 × 3 QFN-16 C, I, H TSOT-8, 2 × 2 DFN-8 C, I, H MSOP-10, 3 × 3 DFN-10 C, E C, I C, I, H C, I C, I C, I TSOT-6 TSOT-8, 3 × 2 DFN-8 TSOT-8, 3 × 2 DFN-8 TSOT-8, 3 × 2 DFN-8 TSOT-8, 3 × 2 DFN-8 TSOT-8, 2 × 2 DFN-8 C, I, H MSOP-16, 3 × 3 DFN-8 C, I TSOT-8, 2 × 2 DFN-8 C, I, H TSOT-8, 3 × 2 DFN-8 C, I, H TSOT-8, 3 × 2 DFN-8 C, I, H MSOP-10, 3 × 2 DFN-10 C, I, H MSOP-10, 3 × 2 DFN-10 C, I, H TSOT-8, 3 × 2 DFN-8 C, I DIP-8, SO-8 C C, I C, I C, I C, I DIP-16, SO-16 DIP-8, SO-8 DIP-16, SO-16 DIP-8, SO-8 DIP-16, SO-16 * C = 0°C to 70°C, E = –40°C to 85°C (Guaranteed by Design Only), I = –40°C to 85°C, H = –40°C to 125°C (100% Tested) www.linear.com/2933 n 1-800-4-LINEAR 0115b