NCP1398C
The NCP1398C is an electronic component from onsemi. View the full NCP1398C datasheet below including electrical characteristics, absolute maximum ratings.
Manufacturer
onsemi
Overview
Part: NCP1398B/C — ON Semiconductor Type: High Performance Resonant Mode Controller with Integrated High-Voltage Drivers
Description: A high performance controller for half bridge LLC resonant converters, featuring a 750 kHz Voltage Controlled Oscillator, integrated high voltage gate driver, and a suite of protection features for reliable and rugged resonant mode power supplies.
Operating Conditions:
- Supply voltage: 8.7–10.3 V (VCC min)
- Operating temperature: -40 to +125 °C
- Switching frequency: 50 kHz to 750 kHz
Absolute Maximum Ratings:
- Max supply voltage (VCC pin): 20 V
- Max high voltage bridge pin (VBRIDGE): 600 V
- Max floating supply voltage (VBOOT - VBRIDGE): 20 V
- Max allowable output slew rate (dVBRIDGE/dt): 50 V/ns
- Max storage temperature: -60 to +150 °C
Key Specs:
- VCC Turn-on threshold: 9.7 V (min) to 11.3 V (max)
- Startup current (Istartup): 620 mA (max)
- Internal IC consumption (no load): 5.1 mA (typ)
- Minimum switching frequency (Fsw_min): 57.2 kHz (min) to 61.8 kHz (max) at -40 to 125 °C
- Maximum switching frequency (Fsw_max): 465 kHz (min) to 585 kHz (max)
- Operating duty-cycle symmetry: 48% (min) to 52% (max)
- Output voltage rise-time (Tr): 40 ns (typ) @CL=1nF
- Output voltage fall-time (Tf): 20 ns (typ) @CL=1nF
- Source resistance (ROH): 13 Ω (typ)
- Sink resistance (ROL): 5.5 Ω (typ)
- Dead time (T_dead_nom): 250 ns (min) to 340 ns (max) with RDT = 10 kΩ
- Temperature shutdown (TSD): 140 °C (min)
Features:
- Adjustable Minimum Switching Frequency with ±3% Accuracy
- High-Frequency Operation from 50 kHz up to 750 kHz
- Adjustable Dead-Time
- Precise and High Impedance Brown-Out Protection
- Startup Sequence Via an Externally Adjustable Soft-Start
- Latched Input for Severe Fault Conditions, e.g. Over Temperature or OVP
- Latched Output Short-Circuit Protection
- Timer-Based Auto-Recovery Overcurrent Protection
- Open Feedback Loop Protection for NCP1398B Version
- Skip Mode with Adjustable Hysteresis
- Disable Input for ON/OFF Control
- VCC Operation up to 20 V
- Common Collector Optocoupler Connection for Easier ORing
- 1 A / 0.5 A Peak Current Sink / Source Drive Capability
- Internal Temperature Shutdown
- Designed with Open Pin Testing Safety Considerations
- Designed with Pin-to-Adjacent-Pin Short Testing Safety Considerations
- Pb-Free and Halogen Free/BFR Free
Applications:
- High Power AC/DC Adapters
- Flat panel Display Power Converters
- Computing Power Supplies
- Offline Battery Chargers
- Industrial and Medical Power Sources
Package:
- SOIC-16 NB (CASE 751AM)
Features
- Adjustable Minimum Switching Frequency with ± 3% Accuracy
- High -Frequency Operation from 50 kHz up to 750 kHz
- Adjustable Dead -Time
- Precise and High Impedance Brown -Out Protection
- Startup Sequence Via an Externally Adjustable Soft -Start
- Latched Input for Severe Fault Conditions, e.g. Over Temperature or OVP
- Latched Output Short -Circuit Protection
- Timer -Based Auto -Recovery Overcurrent Protection
- Open Feedback Loop Protection for NCP1398B Version
- Skip Mode with Adjustable Hysteresis
- Disable Input for ON/OFF Control
- VCC Operation up to 20 V
- Common Collector Optocoupler Connection for Easier ORing
- 1 A / 0.5 A Peak Current Sink / Source Drive Capability
- Internal Temperature Shutdown
- Designed with Open Pin Testing Safety Considerations
- Designed with Pin -to -Adjacent -Pin Short Testing Safety Considerations
- These Devices are Pb -Free and Halogen Free/BFR Free
Applications
- High Power AC/DC Adapters
- Flat panel Display Power Converters
- Computing Power Supplies
- Offline Battery Chargers
- Industrial and Medical Power Sources
SOIC -16 NB, Less Pin 13 D SUFFIX CASE 751AM
Pin Configuration
| Pin N 5 | Pin Name | Function | Pin Description |
|---|---|---|---|
| 1 | BO | Brown - Out | Detects low input voltage conditions. When brought above Vlatch (4V), fully latches off the controller. |
| 2 | Ctimer | Fault timer duration | Sets the fault timer and auto - recovery durations |
| 3 | Discharge | Overload protection | Implements frequency shift in case of overload. |
| 4 | Fmax | Maximum frequency clamp | A resistor connected between this pin and GND sets the maximum fre- quency excursion. Controller enters skip mode and disables drivers if the operating frequency exceeds this adjusted value. |
| 5 | Rt | Minimum frequency clamp | Connecting a resistor to this pin, sets the minimum oscillator frequency reached for VFB = 1.1 V. Discharge OCP and Soft Start networks before startup or reset. |
| 6 | DT | Dead - time adjust | A simple resistor adjusts the dead - time |
| 7 | FB | Feedback | Voltage on this pin modulates operating frequency between adjusted Fmin and Fmax clamps. Starts Fault timer when FB voltage stays below 0.28 V - function not active on NCP1398C version. |
| 8 | Skip/Disable | Skip or Disable input | Defines frequency and thus also FB voltage under which the controller returns from skip mode. Upon release, a clean startup sequence occurs if VFB < 0.28 V. During the skip mode, when FB doesn't drop below 0.28 V, the IC restarts without soft start sequence. |
| 9 | OLP | Overload protection detection input | Initiates fault timer when asserted. Increases operating frequency via discharge pin to protect application power stage. This input features also latch fault comparator that latches off the IC permanently. |
| 10 | Mlower | Low side output | Drives the lower side MOSFET |
| 11 | GND | IC ground | - |
| 12 | V CC | Supplies the controller | The controller accepts up to 20 V |
| 13 | NC | Not connected | Increases the creepage distance |
| 15 | Mupper | High side output | Drives the higher side MOSFET |
| 14 | HB | Half - bridge connection | Connects to the half - bridge output |
| 16 | Vboot | Bootstrap pin | The floating V CC supply for the upper stage |
Figure 2. Internal Circuit Architecture - NCP1398C
Figure 3. Internal Circuit Architecture - NCP1398B
Electrical Characteristics
(For typical values T J = 25 ° C, for min/max values T J = -40 ° C to +125 ° C, Max T J = 150 ° C, V CC = 12 V unless otherwise noted)
| Symbol | Rating | Pin | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| SUPPLY SECTION | ||||||
| VCC ON | Turn - on threshold level, Vcc going up | 12 | 9.7 | 10.5 | 11 . 3 | V |
| VCC (min) | Minimum operating voltage after turn - on | 12 | 8.7 | 9.5 | 10.3 | V |
| Vboot ON | Startup voltage on the floating section | 16 - 15 | 8 | 9 | 10 | V |
| Vboot (min) | Cutoff voltage on the floating section | 16 - 15 | 7.4 | 8.4 | 9.4 | V |
| Istartup | Startup current, V CC < VCC ON | 12 | - | - | 620 | m A |
| VCC reset | V CC level at which the internal logic gets reset | 12 | - | 6.6 | - | V |
| ICC1+Iboot1 | Internal IC consumption, no output load on pin 15/14 - 11/10, Fsw = 300 kHz, Rdt = 10 k W , RT = 31 k W , RFmax = 7.2 k W , RSkip/Disable = 7.9 k W , VFb = 3.6 V | 12 - 11 16 - 15 | - | 5.1 | - | mA |
| ICC2+Iboot2 | Internal IC consumption, 1 nF output load on pin 15/14 - 11/10, Fsw = 300 kHz, Rdt = 10 k W , RT = 31 k W , RFmax = 7.2 k W , RSkip/Disable = 7.9 k W , VFb = 3.6 V | 12 - 11 16 - 15 | - | 13.3 | - | mA |
| ICC3+Iboot3 | Consumption in fault or disable mode, All drivers disabled, Rdt =10 k W , RFmin = 31 k W , RFmax = 7.2 k W , RSkip/Disable = 7.9 k W , VFb = 1 V | 12 - 11 16 - 15 | - | 1.05 | - | mA |
| ICC4+Iboot4 | Consumption in skip mode , All drivers disabled, Rdt =10 k W , RFmin = 31 k W , RFmax = 7.2 k W , RSkip/Disable = 7.9 k W , VFb = 5.7 V | 12 - 11 16 - 15 | - | 2.2 | - | mA |
| VOLTAGE CONTROL OSCILLATOR (VCO) | VOLTAGE CONTROL OSCILLATOR (VCO) | |||||
| Fsw_min | Minimum switching frequency, Rt = 31 k W on pin 5, Vpin 7 = 0.8 V, DT = 300 ns 0 to 125 ° C - 40 to 125 ° C | 5 | 58.2 57.2 | 60 60 | 61.8 61.8 | kHz |
-
Guaranteed by design.
-
Not tested for NCP1398C.
Absolute Maximum Ratings
| Rating | Symbol | Value | Unit |
|---|---|---|---|
| High Voltage bridge pin | VBRIDGE | - 1 to 600 | V |
| Floating supply voltage | VBOOT - VBRIDGE | 0 to 20 | V |
| High side output voltage | VDRV_HI | VBRIDGE - 0.3 to VBOOT+0.3 | V |
| Low side output voltage | VDRV_LO | - 0.3 to V CC + 0.3 | V |
| Allowable output slew rate | dV BRIDGE /dt | 50 | V/ns |
| FB and V CC pin voltage (pins 7 and 12) | V CC | - 0.3 to 20 | V |
| Maximum voltage, all pins (except pins 7, 12, 14, 15 and 16) | - | - 0.3 to 10 | V |
| Thermal Resistance Junction - to - Air, PDIP version | R q J - A | 100 | ° C/W |
| Thermal Resistance Junction - to - Air, SOIC version | R q J - A | 130 | ° C/W |
| Storage Temperature Range | - | - 60 to +150 | ° C |
| ESD Capability, HBM model , Except pins 14, 15, 16 | - | 2 | kV |
| ESD Capability, Machine Model | - | 200 | V |
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability.
- This device(s) contains ESD protection and exceeds the following tests: Human Body Model 2000 V per JEDEC Standard JESD22 -A114E
Machine Model 200 V per JEDEC Standard JESD22 -A115 -A
- This device meets latch -up tests defined by JEDEC Standard JESD78.
Typical Application
- High Power AC/DC Adapters
- Flat panel Display Power Converters
- Computing Power Supplies
- Offline Battery Chargers
- Industrial and Medical Power Sources
SOIC -16 NB, Less Pin 13 D SUFFIX CASE 751AM
Related Variants
The following components are covered by the same datasheet.
| Part Number | Manufacturer | Package |
|---|---|---|
| MK-12C03-G015 | G-Switch | — |
| NCP1398B | onsemi | — |
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