component
LTC2955IDDB-1#TRPBF
Public Made by Adomby adom
Analog Devices Monitors & Reset Circuits, DFN-10-EP(2x3). Pinout reviewed by a person against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownLTC2955IDDB-1#TRPBF
Analog Devices · Monitors & Reset Circuits · DFN-10-EP(2x3)
LTC2955IDDB-1#TRPBF from Analog Devices, in a DFN-10-EP(2x3). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | INT | tri_state | Open-drain interrupt output asserts low on pushbutton or ON pin turn-off command with minimum 32ms pulse width, extendable via TMR capacitor; drive 3mA low. |
| 2 | PGD | output | ON status output (DFN only) that goes high when ON pin voltage exceeds 0.8V threshold; output high 1.5V-5.5V, output low 0.4V at 3mA; leave open if unused. |
| 3 | EN | output | Enable output (active high for LTC2955-1) asserts when pushbutton pressed or ON transitions high; output high 1.5V-5.5V driven by internal LDO, output low 0.175V-0.4V; connect to regulator SHUTDOWN pin. |
| 4 | VIN | power_in | Power supply input, supply voltage range 1.5V-36V, supply current 0.5µA-3µA; bypass to ground with 10nF low-ESR capacitor for >20V applications. |
| 5 | PB | input | Active-low pushbutton input with 900kΩ internal pull-up, voltage range ±36V, threshold 0.6V-1.0V falling with 40mV hysteresis, ±25kV ESD HBM; connect pushbutton to ground. |
| 6 | ON | input | Voltage monitor input for external resistive divider enabling automatic turn-on on rising edge; enables automatic turn-off on falling edge when SEL tied high (DFN only); tie to ground if unused. |
| 7 | KILL | input | Kill input with falling threshold 0.76V-0.84V and 30mV hysteresis; low level releases enable output; can be driven by microprocessor or connected to voltage monitor; tie to 1.2V-5V if unused. |
| 8 | TMR | input | Timer pin; external capacitor to ground determines additional turn-off debounce time at 5.2 seconds/µF beyond 64ms default; defaults to 64ms if left open; ground pin to disable forced shutdown. |
| 9 | SEL | input | Mode select input (DFN only) with threshold 0.4V-1.2V; tie to ground to block ON pin falling-edge turn-off, or tie to VIN to enable turn-off on ON falling edge; do not leave open. |
| 10 | GND | power_in | Device ground serving as reference for all signal voltages. |
| 11 | EP | power_in | Exposed pad for optional connection to device ground; may be left open or soldered to PCB ground for thermal management. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices |
| Package | DFN-10-EP(2x3) |
| Category | Power Supply Chip |
| Pins | 11 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| VIN Supply Voltage Range | VIN | 1.5 | 36 | V | 3 | ||
| VIN Supply Current | IIN | 0.5 | 1.2 | 3 | µA | 3 | |
| VIN Undervoltage Lockout | VUVL | 1 | 1.15 | 1.3 | V | VIN Rising | 3 |
| VIN Undervoltage Lockout Hysteresis | VUVL(HYST) | 30 | 85 | 200 | mV | 3 | |
| PB Voltage Range | VPB(MIN(MAX)) | -36 | 36 | V | 3 | ||
| PB Input Threshold | VPB | 0.6 | 0.8 | 1 | V | PB Falling | 3 |
| PB Open Circuit Voltage | VPB(VOC) | 3 | 4.3 | 5.5 | V | I = -1µA | 3 |
| PB Input Leakage Current | IPB | -10 | 10 | µA | PB = 1V | 3 | |
| ON Threshold | VON | 0.76 | 0.8 | 0.84 | V | ON Rising | 3 |
| ON Input Leakage Current | ION | -10 | 10 | nA | ON = 1V | 3 | |
| ON Input Leakage Current | ION | -100 | 100 | nA | ON = 36V | 3 | |
| KILL Input Threshold Voltage | VKILL | 0.76 | 0.8 | 0.84 | V | KILL Falling | 3 |
| KILL Input Leakage Current | IKILL | -50 | 50 | nA | KILL = 1V | 3 | |
| SEL Input Threshold | VSEL | 0.4 | 0.8 | 1.2 | V | 3 | |
| SEL Input Current | ISEL | -50 | 50 | nA | SEL = 1V | 3 | |
| SEL Input Current | ISEL | -100 | 100 | nA | SEL = 36V | 3 | |
| EN/EN Voltage Output Low | VEN/EN(VOL) | 0.175 | 0.4 | V | I = 1mA | 3 | |
| EN Voltage Output High (LTC2955-1) | VEN(VOH) | 1.5 | 5.5 | V | I = 0µA, -0.5µA | 3 | |
| EN Pull-Up Current (LTC2955-1) | IEN | -1.2 | -2 | -2.8 | µA | EN = 0V | 3 |
| INT Voltage Output Low | VINT(VOL) | 0.4 | V | I = 3mA | 3 | ||
| INT Leakage Current | IINT | -50 | 50 | nA | INT = 5V | 3 | |
| PGD Voltage Output High | VPGD(VOH) | 1.5 | 5.5 | V | I = 0µA, -0.5µA | 3 | |
| PGD Voltage Output Low | VPGD(VOL) | 0.4 | V | I = 3mA | 3 | ||
| PGD Pull-Up Current | IPGD | -1.2 | -2 | -2.8 | µA | PGD = 0V | 3 |
| TMR Pull-Up Current | ITMR(PU) | -2 | -3 | -4 | µA | TMR = 0V | 3 |
| TMR Pull-Down Current | ITMR(PD) | 2 | 3 | 4 | µA | TMR = 1.5V | 3 |
| PB, ON Turn-On Debounce Time | tDB(ON) | 19 | 32 | 45 | ms | PB Falling or ON Rising → Enable Asserted | 4 |
| PB Interrupt Debounce Time | tDB(OFF) | 19 | 32 | 45 | ms | PB Falling → INT Falling | 4 |
| Additional Turn-Off Debounce Time | tTMR | 5.8 | 11.5 | 17.2 | ms | CTMR = 2200pF | 4 |
| Minimum INT Pulse Width | tINT(MIN) | 19 | 32 | 45 | ms | INT Falling → TMR Rising | 4 |
| ON Interrupt Delay | tON(PD) | 200 | µs | ON Falling → INT Falling, VSEL > 0.8V | 4 | ||
| PGD Propagation Delay | tPGD(PD) | 200 | µs | ON Falling → PGD Falling | 4 | ||
| KILL Propagation Delay | tKILL(PD) | 60 | µs | KILL Falling → Enable Released | 4 | ||
| KILL Minimum Pulse Width | tKILL(PW) | 60 | µs | 4 | |||
| KILL Turn-On Blanking | tKILL(ON BLANK) | 304 | 512 | 720 | ms | KILL Low, Enable Asserted → Enable Released | 4 |
| EN/EN Lockout Time | tEN(LOCK OUT) | 0.6 | 1 | 1.4 | s | Enable Released → Enable Asserted | 4 |
| VIN Absolute Maximum Voltage | VIN | -0.3 | 40 | V | 2 | ||
| PB Input Voltage | PB | -40 | 40 | V | 2 | ||
| ON Input Voltage | ON | -0.3 | 40 | V | 2 | ||
| SEL Input Voltage | SEL | -0.3 | 40 | V | 2 | ||
| KILL Input Voltage | KILL | -0.3 | 6 | V | 2 | ||
| EN/EN Output Voltage | EN/EN | -0.3 | 40 | V | 2 | ||
| INT Output Voltage | INT | -0.3 | 6 | V | 2 | ||
| PGD Output Voltage | PGD | -0.3 | 6 | V | 2 | ||
| TMR Output Voltage | TMR | -0.3 | 2.7 | V | 2 | ||
| Storage Temperature Range | TSTG | -65 | 150 | °C | 2 | ||
| Operating Temperature Range (LTC2955I) | TA | -40 | 85 | °C | LTC2955I | 2 | |
| Maximum Junction Temperature | TJMAX | 125 | °C | 2 | |||
| Thermal Resistance, Junction to Ambient (DDB package) | θJA | 55 | °C/W | 10-Lead DFN (DDB) package | 2 |
CAD (KiCad official)
- Symbol:
LTC2955IDDB-1#TRPBF - Footprint:
Package_DFN_QFN:DFN-10-1EP_2x3mm_P0.5mm_EP0.64x2.4mm - 3D model: DFN-10-EP(2x3) (KiCad packages3D, STEP)
- 3D model files:
ltc2955iddb-1-trpbf-etched.step/ltc2955iddb-1-trpbf-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ltc2955iddb-1-trpbf.step/ltc2955iddb-1-trpbf.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Analog Devices datasheet (22 pp, sha256
808f40fbceb97024, retrieved 2026-10-21, tier: lcsc) - Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).