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Infineon Technologies CHL8214-07CRT
- Part No.:
- CHL8214-07CRT
- Manufacturer:
- Infineon Technologies
- Category:
- DC DC Switching Controllers
- Package:
- 40-VFQFN Exposed Pad
- Datasheet:
-
CHL8214-07CRT.pdf
- Description:
- IC REG BUCK 40VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,560
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Product details
Overview
CHL8214-07CRT from Infineon Technologies is a dual-loop digital multi-phase buck controller supporting 4+1-phase operation per loop, featuring I²C configuration & telemetry, programmable ICRITICAL signal, and IR Adaptive Transient Algorithm (ATA) for GPU voltage regulation in GDDR memory systems.
For engineers reviewing the CHL8214-07CRT datasheet, CHL8214-07CRT pinout, CHL8214-07CRT application, or CHL8214-07CRT equivalent, key selection criteria include dual-loop 4+1-phase PWM control, I²C address programmability, VRHOT# thermal flag, dynamic phase control (DPC), and MTP-based custom configuration storage.
Technical Context
The CHL8214 implements two independent digital PWM control loops with per-phase switching frequencies configurable from 200 kHz to 1.2 MHz. It integrates IR Efficiency Shaping Technology with Dynamic Phase Control (DPC) and Active Diode Emulation for light-load efficiency optimization.
It supports 3-bit VID select lines for fast dynamic voltage transitions, includes thermistor-based temperature sensing with VRHOT# assertion, and uses Multiple Time Programmable (MTP) memory to store custom configurations-eliminating external configuration components and reducing PCB footprint.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Topology | Dual-loop digital multi-phase buck controller (4+1-phase per loop) |
| Switching Frequency Range | 200 kHz to 1.2 MHz per phase, independently programmable per loop |
| I²C Interface | Configurable address via ADDR/PROT/EN_L2 pin; supports telemetry readback |
| Voltage Regulation Support | 3-bit VID select bus enables dynamic VOUT transitions without I²C transaction delay |
| Fault Protection | Per-loop OVP/UVP/OCP; OTP with VRHOT# flag; slow OCP for TDC compliance |
| Power Supply | 3.3 V ±10%/−15%; operates from 0°C to +85°C ambient |
| Package | 40-pin QFN, 6 mm × 6 mm, 0.5 mm pitch, RoHS-compliant |
Pinout & Package
CHL8214-07CRT is housed in a 40-pin QFN package (6 mm × 6 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are validated per Figure 1 of the August 2013 datasheet (V1.6).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PWM1–PWM41/NC2 | Phase gate drive outputs | Four primary PWM outputs per loop; PWM41/NC2 is no-connect on CHL8214 |
| ISEN1–ISEN41/NC2 | Current sense inputs | Differential current sensing per phase; ISEN41/NC2 is no-connect |
| VSEN / VSEN_L2 | Output voltage feedback | High-precision remote sensing inputs for each loop's regulated rail |
| VRHOT# | Thermal alert output | Open-drain active-low flag asserted when die temperature exceeds threshold |
| SMB_DAT / SMB_CLK | I²C bidirectional data/clock | Supports configuration, telemetry, and security features including address programming |
| VIDSEL0–VIDSEL2 | Parallel VID select inputs | 3-bit bus enabling up to eight pre-programmed VOUT levels with sub-µs access time |
Key Features
| Feature | Design Value |
|---|---|
| IR Adaptive Transient Algorithm (ATA) | Proprietary non-linear digital PWM reduces required bulk capacitance by >30% vs. fixed-frequency controllers |
| Dynamic Phase Control (DPC) | Automatically adds/drops phases based on real-time load current; enables 1-phase + diode emulation mode |
| Multiple Time Programmable (MTP) memory | Stores full configuration (fault thresholds, timing, VID maps) eliminating external EEPROM and boot-time I²C writes |
| Footprint compatibility with CHL8225 | Shared analog/power pin mapping allows board-level reuse across controller generations |
| I²C security enable pin (ADDR/PROT/EN_L2) | Hardware-gated access to secure registers; prevents unauthorized configuration or telemetry readout |
Applications
| GPU Voltage Regulation | GDDR Memory Power Delivery |
|---|---|
Use Scenario: High-performance discrete graphics cards requiring dynamic VDD_GPU scaling under variable compute loads. IC Role / Device Role / Timing Role: Dual-loop controller managing separate 4+1-phase rails for GPU core and memory interface. Use Value: ATA minimizes output capacitor count; DPC maintains >90% efficiency from 5% to 100% load. | Use Scenario: GDDR6/GDDR6X memory subsystems demanding tight VDDQ regulation and fast transient response. IC Role / Device Role / Timing Role: Primary buck controller delivering stable, low-noise power to memory ICs with VRHOT#-triggered throttling. Use Value: 3-bit VID support enables sub-10 µs voltage transitions during memory frequency shifts. |
| Overclocking Platforms | Thermally Constrained Embedded GPUs |
Use Scenario: Enthusiast motherboards enabling user-defined GPU voltage override beyond standard VRD limits. IC Role / Device Role / Timing Role: I²C-configurable controller providing Vmax setting and voltage override registers accessible via BIOS/firmware. Use Value: Overclocking safety enforced via slow OCP and TDC-aligned current limiting-not just peak OCP. | Use Scenario: Compact edge AI accelerators where thermal headroom limits sustained GPU power draw. IC Role / Device Role / Timing Role: Dual-loop controller using VRHOT# to coordinate phase shedding and clock gating with SoC thermal management. Use Value: Thermistor-based OTP triggers graceful performance scaling before silicon damage occurs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-loop multi-phase buck controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CHL8213-07CRT | Same 40-pin QFN package and pinout; differs only in factory-programmed MTP configuration file (07 vs. 13) | Identical use cases; requires validation of stored VID map and fault thresholds for target platform | Select when existing CHL8213-07CRT firmware and layout are already qualified |
| ISL6377IRZ-T | Analog-digital hybrid; no MTP; relies on external resistor networks for configuration; lacks VRHOT# and I²C security | Requires more external components; no thermistor-based thermal coordination; limited overclocking flexibility | Choose for cost-sensitive designs where I²C telemetry and secure configuration are not required |
Compared with CHL8213-07CRT, this part shares identical hardware but targets distinct MTP configuration sets; versus ISL6377IRZ-T, CHL8214-07CRT delivers higher integration, faster transient response via ATA, and hardware-enforced I²C security-critical for modern GPU platforms.
Availability
CHL8214-07CRT is available at Aetrix Electronics and suitable for GPU voltage regulation, GDDR memory power delivery, overclocking platforms, and thermally constrained embedded GPU applications requiring stable component supply and long-term design continuity.
Supply support for CHL8214-07CRT includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive, and industrial control ICs, with leadership in digital power controller innovation.
The CHL82xx family was designed specifically for high-efficiency, digitally configurable GPU and memory VRMs-emphasizing minimal external components, thermal-aware protection, and seamless integration with modern graphics platform firmware stacks.
FAQ
What is the function of the VRHOT# pin on CHL8214-07CRT?
VRHOT# is an open-drain, active-low thermal alert signal that asserts when the internal die temperature exceeds the programmed threshold. It connects directly to GPU or system thermal management logic to trigger throttling or fan speed increase. Unlike generic OTP flags, VRHOT# is calibrated to match GPU junction temperature models and supports hysteresis to prevent chatter during thermal transients.
Does CHL8214-07CRT require external EEPROM for configuration?
No. CHL8214-07CRT contains on-chip Multiple Time Programmable (MTP) memory that stores all configuration parameters-including VID maps, fault thresholds, timing settings, and security keys. This eliminates the need for external EEPROM, reduces BOM cost, removes boot-time I²C initialization delays, and improves system reliability by avoiding external component failure modes.
How does the I²C address programming work on CHL8214-07CRT?
The ADDR/PROT/EN_L2 pin serves as a 3-state input (high/low/high-Z) to select one of three I²C addresses (0x18, 0x19, or 0x1A). This hardware-based addressing enables multiple CHL8214 devices on the same bus without software arbitration. The pin also gates access to secure registers-when held low, it disables write access to critical configuration and telemetry registers.
Can CHL8214-07CRT operate with only one active phase per loop?
Yes. CHL8214-07CRT supports 1-phase operation per loop via Dynamic Phase Control (DPC), which automatically transitions into single-phase mode under light load. In this mode, it further engages Active Diode Emulation to replace synchronous rectifier switching with controlled gate drive-reducing switching losses and improving efficiency below ~10% load without requiring external control signals.
CHL8214-07CRT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 40-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Type:
- PWM
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Number of Outputs:
- 5
- Output Phases:
- 4
- Voltage - Supply (Vcc/Vdd):
- 3.3V
- Frequency - Switching:
- 200kHz ~ 1.2MHz
- Duty Cycle (Max):
- -
- Synchronous Rectifier:
- No
- Clock Sync:
- No
- Serial Interfaces:
- I2C
- Control Features:
- Enable
- Operating Temperature:
- 0°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-VQFN-40-903
CHL8214-07CRT FAQ
1.How can I place an order for CHL8214-07CRT through Aetrix?
Please submit a Request for Quotation (RFQ) for CHL8214-07CRT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for CHL8214-07CRT reliable?
The price and inventory of CHL8214-07CRT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CHL8214-07CRT is usually 5 days.
3.What payment methods are accepted for CHL8214-07CRT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CHL8214-07CRT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CHL8214-07CRT?
CHL8214-07CRT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CHL8214-07CRT order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for CHL8214-07CRT?
For technical support, including CHL8214-07CRT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CHL8214-07CRT requirements.
6.How does Aetrix verify that CHL8214-07CRT is sourced from the original manufacturer or authorized distributors?
All CHL8214-07CRT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that CHL8214-07CRT meets industry standards.
7.What is the process for return or replacement of CHL8214-07CRT?
All CHL8214-07CRT units undergo pre-shipment inspection (PSI). If there is an issue with CHL8214-07CRT, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The CHL8214-07CRT part is unused and in its original packaging.
Return procedure for CHL8214-07CRT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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