Specifications
| Type | Description |
|---|---|
| Part Number | NCP1654 |
| Manufacturer | Texas Instruments |
| Product Type | LDO Regulator |
| Category | Power Management |
| Package / Case | SO-8, D suffix, Case 751 |
| Output drive source capability | -1.5 A; DRV pin maximum rating |
| Output drive sink capability | +1.5 A; DRV pin maximum rating |
| Continuous VCC supply voltage | -0.3 to +20 V; VCC pin maximum rating |
| Transient VCC supply voltage | +25 V max; duration <10 ms, IVCC <10 mA |
| Input voltage | -0.3 to +10 V; pins 2, 3, 4, 5, 6 maximum rating |
| Maximum power dissipation | 450 mW; SO package, TA=70°C |
| Thermal resistance junction-to-air | 178 °C/W; SO package |
| Operating junction temperature range | -40 to +125 °C; operating condition |
| Maximum junction temperature | 150 °C; absolute maximum rating |
| Storage temperature range | -65 to +150 °C; storage condition |
| Lead temperature | 300 °C max; soldering, 10 s |
| Source resistance | 9.0 typ, 20 max ohm; Isource=100 mA, VCC=15 V, TJ=-40°C to +125°C |
| Sink resistance | 6.6 typ, 18 max ohm; Isink=-100 mA, VCC=15 V, TJ=-40°C to +125°C |
| Gate drive rise time | 60 ns typ; 1.5 V to 13.5 V, CL=2.2 nF |
| Gate drive fall time | 40 ns typ; 13.5 V to 1.5 V, CL=2.2 nF |
| Voltage reference | 2.425 min, 2.5 typ, 2.575 max V; VCC=15 V, TJ=-40°C to +125°C |
| Error amplifier current capability | ±28 µA typ; VCC=15 V, TJ=-40°C to +125°C |
| Error amplifier gain | 100 min, 200 typ, 300 max µS; VCC=15 V, TJ=-40°C to +125°C |
| Pin 6 bias current | -500 min, 500 max nA; VFB=VREF |
| Maximum control voltage | 3.6 V typ; VFB=2 V |
| Minimum control voltage | 0.6 V typ; VFB=3 V |
| Control voltage swing | 2.7 min, 3.0 typ, 3.3 max V; Vcontrol(max)-Vcontrol(min) |
| VOUT low detect threshold ratio | 94 min, 95 typ, 96 max % of VREF; VCC=15 V, TJ=-40°C to +125°C |
| VOUT low detect hysteresis ratio | 0.5 % typ of VREF; VCC=15 V, TJ=-40°C to +125°C |
| Pin 5 source current during VOUT low detect | 190 min, 228 typ, 260 max µA; VOUT low detect activated |
| Current sense pin offset voltage | 10 mV typ; ICS=100 µA |
| Overcurrent protection threshold | 185 min, 200 typ, 215 max µA; current sense block |
| Overpower limitation threshold | 200 µVA typ; ICS x VBO |
| Overpower current threshold 1 | 186 min, 222 typ, 308 max µA; VBO=0.9 V, VM=3 V |
| Overpower current threshold 2 | 62 min, 75 typ, 110 max µA; VBO=2.67 V, VM=3 V |
| Duty cycle range | 0 to 97 % typ; PWM block |
| Switching frequency option | 58 min, 65 typ, 72 max kHz; 65 kHz version |
| Switching frequency option | 120 min, 133 typ, 146 max kHz; 133 kHz version |
| Switching frequency option | 180 min, 200 typ, 220 max kHz; 200 kHz version |
| Brown-out rising threshold | 1.22 min, 1.30 typ, 1.38 max V; VBO rising |
| Brown-out falling threshold | 0.65 min, 0.7 typ, 0.75 max V; VBO falling |
| Pin 4 input bias current | -500 min, 500 max nA; VBO=1 V |
| Multiplier output current IM1 | 1.9 µA typ; Vcontrol=Vcontrol(max), VBO=0.9 V, ICS=25 µA |
| Multiplier output current IM2 | 1.5 min, 4.7 typ, 8.8 max µA; Vcontrol=Vcontrol(max), VBO=0.9 V, ICS=75 µA, TJ=0°C to +125°C |
| Multiplier output current IM2 extended temperature | 1.5 min, 4.7 typ, 9.8 max µA; Vcontrol=Vcontrol(max), VBO=0.9 V, ICS=75 µA, TJ=-40°C to +125°C |
| Multiplier output current IM3 | 28.1 µA typ; Vcontrol=Vcontrol(min)+0.2 V, VBO=0.9 V, ICS=25 µA |
| Multiplier output current IM4 | 84.4 µA typ; Vcontrol=Vcontrol(min)+0.2 V, VBO=0.9 V, ICS=75 µA |
| Overvoltage protection threshold ratio | 103 min, 105 typ, 107 max % of VREF; VFB overvoltage threshold |
| OVP propagation delay | 500 ns typ; VFB to 107% VREF to drive low |
| UVP activate threshold ratio | 4 min, 8 typ, 12 max % of VREF; TJ=0°C to +105°C |
| UVP deactivate threshold ratio | 6 min, 12 typ, 18 max % of VREF; TJ=0°C to +105°C |
| UVP lockout hysteresis | 4 % typ; undervoltage protection/shutdown |
| UVP propagation delay | 500 ns typ; VFB <8% VREF to drive low |
| Thermal shutdown threshold | 150 °C min; thermal shutdown |
| Thermal shutdown hysteresis | 30 °C typ; thermal shutdown |
| VCC startup threshold | 9.6 min, 10.5 typ, 11.4 max V; VCC rising undervoltage lockout threshold |
| VCC disable voltage after turn-on | 8.25 min, 9.0 typ, 9.75 max V; VCC falling undervoltage lockout threshold |
| VCC undervoltage lockout hysteresis | 1.0 min, 1.5 typ V; VCC UVLO section |
| Startup supply current | 75 µA max; VCC=9.4 V |
| Operating supply current, no switching | 3.7 typ, 5.0 max mA; VCC=15 V, no load, no switching |
| Operating supply current, switching | 4.7 typ, 6.0 max mA; VCC=15 V, no load, switching |
| Shutdown mode supply current | 300 typ, 400 max µA; VCC=15 V and VFB=0 V |
| ESD human body model rating | 2000 V; per JEDEC JESD22 Method A114E |
| ESD machine model rating | 200 V, except pin 7 is 150 V; per JEDEC JESD22 Method A115A |
| Latch-up protection | ±100 mA; per JEDEC JESD78 |
| Pin 1 function | Ground; GND pin |
| Pin 2 function | Multiplier voltage input; Vin pin; average current mode with external CM capacitor, peak current mode otherwise |
| Pin 3 function | Current sense input; sources ICS proportional to inductor current; OCP activates above 200 µA |
| Pin 4 function | Brown-out input; detects voltage proportional to average input voltage; disables driver below VBOL until VBO exceeds VBOH |
| Pin 5 function | Control voltage and soft-start; external type-2 compensation; bandwidth typically below 20 Hz |
| Pin 6 function | Feedback and shutdown input; used for regulation, OVP, and UVP; shutdown when VFB below 8% VREF |
| Pin 7 function | Supply voltage; starts near 10.5 V, turns off near 9 V; operating range 9 V to 20 V after startup |
| Pin 8 function | Drive output; totem pole gate drive, ±1.5 A capability |
| Datasheet Status | request_only |
Product Overview
NCP1654 is a Texas Instruments CCM PFC controller for Power_Management designs. The device integrates the control functions needed around a power-factor-correction stage, including multiplier voltage input, current-sense input, brown-out input, feedback/shutdown input, and a control-voltage/soft-start pin for external type-2 compensation.
The SO-8, D suffix, Case 751 package provides eight defined functions: GND, Vin, current sense, brown-out, control/soft-start, feedback/shutdown, VCC, and DRV. The DRV output is a totem-pole gate drive with ±1.5 A capability, 60 ns typical rise time, and 40 ns typical fall time with a 2.2 nF load.
Operating limits include -40 to +125 °C junction operation, 150 °C maximum junction temperature, and 450 mW maximum power dissipation at TA=70 °C for the SO package. Protection and control data include overcurrent protection around 200 µA typical, VFB overvoltage protection at 105% of VREF typical, undervoltage shutdown near 8% of VREF, brown-out thresholds of 1.30 V rising and 0.7 V falling typical, and thermal shutdown at 150 °C minimum.
Key Features
- CCM PFC controller in SO-8 D suffix package
- Totem-pole DRV output with ±1.5 A capability
- 65 kHz, 133 kHz, and 200 kHz frequency options
- 2.5 V typical voltage reference over operating junction range
- 0 to 97% typical PWM duty-cycle range
- Brown-out input with 1.30 V rising threshold typical
- VFB overvoltage protection at 105% of VREF typical
- Undervoltage shutdown when VFB falls below 8% VREF typical
- VCC UVLO starts near 10.5 V and disables near 9 V
- Thermal shutdown threshold specified at 150 °C minimum
Typical Applications
- CCM power factor correction stages
- Boost PFC controller circuits
- Offline AC input power supplies
- Average current mode PFC designs
- Peak current mode PFC designs
- Power supplies needing brown-out detection
- Gate-drive controlled PFC converters
- Feedback-regulated PFC front ends
Procurement Notes
When requesting a quote for NCP1654, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.
If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.
For power IC and power device sourcing, voltage rating, current rating, power dissipation, package thermal performance, protection features, qualification grade and application conditions should be reviewed before approval.
FAQ
What type of power controller is the NCP1654?
NCP1654 is identified as a CCM PFC controller in the Power_Management category. Its pins support multiplier voltage input, current sense, brown-out detection, control voltage and soft-start, feedback and shutdown, VCC supply, and gate-drive output functions.
What package is specified for NCP1654?
The extracted package data lists NCP1654 in an SO-8, D suffix, Case 751 package. The pin functions define eight connections: ground, multiplier voltage input, current sense, brown-out input, control and soft-start, feedback and shutdown, supply voltage, and drive output.
What are the available switching frequency options?
The datasheet facts list three switching-frequency options: 58 to 72 kHz for the 65 kHz version, 120 to 146 kHz for the 133 kHz version, and 180 to 220 kHz for the 200 kHz version.
What gate-drive capability does the DRV pin provide?
The DRV pin is specified as a totem-pole drive output with ±1.5 A capability. The extracted electrical data also lists 60 ns typical rise time and 40 ns typical fall time with a 2.2 nF load.
What protection functions are described for NCP1654?
The extracted facts include overcurrent protection around 200 µA typical, overpower limitation, VFB overvoltage protection at 105% of VREF typical, undervoltage protection and shutdown below 8% of VREF typical, brown-out detection, VCC undervoltage lockout, and thermal shutdown.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: July 26, 2026.
This page is based on manufacturer datasheet information and LDeepAI sourcing review. Specifications should be verified against the official manufacturer datasheet before final procurement or design approval. Final electrical, optical and reliability approval should be confirmed by the buyer's engineering team.