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Microchip Technology TC962COE713
- Part No.:
- TC962COE713
- Manufacturer:
- Microchip Technology
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
TC962COE713.pdf
- Description:
- IC REG CHRG PUMP INV 80MA 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,517
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Product details
Overview
TC962COE713 from Microchip Technology is a high-current CMOS charge pump DC-to-DC inverter IC capable of sourcing up to 80 mA output current, operating from 3V to 18V input, with 28 Ω typical output impedance and integrated 6.4 V Zener reference. It serves as a pin-compatible upgrade to TC7662/ICL7662 in portable power rails for microprocessor-based controllers and disk drives.
For engineers reviewing the TC962COE713 datasheet, TC962COE713 pinout, TC962COE713 application, or TC962COE713 equivalent, key selection criteria include output current capability (80 mA), oscillator frequency doubling via FREQ×2 pin, on-chip Zener reference (6.4 V at 5 mA), low external component count (only two capacitors required), and SOIC-16 wide package compatibility with industrial temperature range (0°C to +70°C).
Technical Context
The TC962COE713 implements a four-switch capacitive charge pump topology with internal level-shifted MOSFET drivers and a hysteresis-controlled oscillator. Its dual-frequency operation (12 kHz/24 kHz) is controlled by grounding the FREQ×2 pin, enabling reduced output ripple with smaller external capacitors.
It integrates a 6.4 V Zener diode (12 Ω dynamic impedance) on Pin 1 for external regulator reference use and eliminates the low-voltage terminal required by legacy TC7662 designs. The device achieves 97% power conversion efficiency and 99.9% voltage conversion efficiency under specified load conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 80 mA max - supports higher-power analog rails and logic-level translation without external boost stages. |
| Input Voltage Range | 3V to 18V - enables direct use across single-cell Li-ion (3.0–4.2 V), 5 V, and 12 V systems. |
| Oscillator Frequency | 12 kHz (Pin 6 open) or 24 kHz (Pin 6 grounded) - allows trade-off between capacitor size and EMI profile. |
| Zener Reference | 6.4 V ±0.2 V at 5 mA - provides stable bias for external LDOs or feedback networks without discrete Zener. |
| Output Impedance | 28 Ω typ. at 20 mA - ensures <100 mV droop under 2 mA load, critical for precision analog supply generation. |
| Power Efficiency | 97% typ. at RL = 2 kΩ - minimizes thermal rise in space-constrained portable applications. |
| Voltage Efficiency | 99.9% typ. at no load - preserves input-to-output voltage ratio for accurate negative rail generation. |
Pinout & Package
TC962COE713 is housed in a 16-pin SOIC Wide (0.300" body width) package rated for 0°C to +70°C operation. Pin 1 is Zener cathode; Pins 2, 4, 6, 8, 9, 11, 13, and 15 are no-connect; Pins 3 and 7 connect to external pump capacitors; Pin 5 is GND; Pin 10 is VOUT; Pin 12 is FREQ×2; Pin 14 is COSC; Pin 16 is VDD.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Zener Cathode | Provides 6.4 V reference node for external regulator feedback or biasing; requires external current limiting if used as shunt reference. |
| 3 | C+ | Positive terminal of external charge pump capacitor (CP); connects to VDD during first half-cycle to charge CP. |
| 5 | GND | System ground reference for all internal circuitry and external capacitor return paths. |
| 7 | C− | Negative terminal of external charge pump capacitor (CP); polarity inversion occurs here to generate negative output. |
| 10 | VOUT | Inverted output voltage rail (e.g., −5 V from +5 V input); sourced up to 80 mA with low impedance. |
| 12 | FREQ × 2 | Grounding enables 24 kHz oscillator mode; open-circuit defaults to 12 kHz - directly controls capacitor sizing and ripple performance. |
| 14 | COSC | External timing capacitor connection to GND; adjusts oscillator frequency downward when added (e.g., 100 pF lowers fOSC by ~10%). |
| 16 | VDD | Main positive supply input; accepts 3–18 V; powers internal oscillator, logic, and switch drivers. |
Key Features
| Feature | Design Value |
|---|---|
| Pin-compatible upgrade path | Direct replacement for TC7662/ICL7662/SI7661 in existing layouts - no PCB revision needed. |
| Integrated Zener reference | 6.4 V ±0.2 V reference with 12 Ω dynamic impedance eliminates discrete Zener and reduces BOM count. |
| Dual-frequency oscillator | Selectable 12 kHz / 24 kHz operation via FREQ×2 pin - enables optimization of capacitor size vs. EMI vs. ripple. |
| No external diodes required | On-chip CMOS switches replace external diodes - improves efficiency, reduces footprint, and eliminates forward voltage drop loss. |
| High output current capability | 80 mA continuous sourcing - supports higher-load analog circuits (e.g., op-amp rails, ADC references) without external buffering. |
Applications
| Laptop Power Management | Disk Drive Bias Generation |
|---|---|
Use Scenario: Generating negative supply rails for LCD bias, RS-232 transceivers, or op-amp dual supplies in ultra-thin laptop chassis where board area and heat dissipation are constrained. IC Role / Device Role / Timing Role: High-efficiency inverting charge pump delivering −5 V or −12 V from main 3.3 V or 5 V rail; operates at 24 kHz to minimize capacitor size. Use Value: Eliminates need for inductors and external diodes, reducing solution size by >40% versus inductive converters while maintaining <100 mV ripple at 20 mA load. | Use Scenario: Providing regulated negative voltage for voice coil motor (VCM) driver bias and preamplifier stages in 2.5″ and 3.5″ HDD servo control boards. IC Role / Device Role / Timing Role: Inverter IC generating stable −5 V rail from 5 V system supply; uses on-chip Zener to reference external linear regulator for ultra-low-noise analog bias. Use Value: Achieves 97% power efficiency and 28 Ω output impedance - limits thermal rise to <5°C at full 80 mA load, critical for sealed drive enclosures. |
| μP-Based Industrial Controllers | Process Instrumentation Signal Conditioning |
Use Scenario: Supplying isolated negative rails for analog front-end (AFE) components (e.g., instrumentation amplifiers, DACs) in programmable logic controller (PLC) I/O modules. IC Role / Device Role / Timing Role: Charge pump inverter generating −10 V from 12 V input; FREQ×2 pin grounded to enable 24 kHz operation and reduce capacitor ESR sensitivity. Use Value: Delivers 80 mA with <35 Ω output resistance over −40°C to +85°C - ensures stable AFE bias across industrial temperature range without derating. | Use Scenario: Creating precision dual-supply rails (±5 V, ±12 V) for 4–20 mA transmitter signal conditioning circuits in hazardous-area process transmitters. IC Role / Device Role / Timing Role: Inverting converter supplying negative rail; Zener cathode (Pin 1) used as 6.4 V reference for external shunt regulator driving current loop DAC. Use Value: Integrated 6.4 V Zener with 12 Ω impedance ensures <0.5% reference drift over temperature - meets SIL-2 accuracy requirements for analog output stages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-current charge pump inverter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TC7662CPA | Lower output current (20 mA), no integrated Zener, requires external diodes, 8-pin DIP only. | Limited to low-power analog rails; unsuitable for >20 mA loads or Zener-referenced regulators. | Select TC7662CPA only for cost-sensitive, low-current legacy designs where PCB layout cannot accommodate SOIC-16. |
| LTC1044CS8#PBF | 20 mA output, no Zener, 8-pin SOIC, requires external diodes, lower efficiency (92% typ.), no FREQ×2 option. | Not suitable for Zener-referenced regulation or high-current loads; lacks frequency doubling for capacitor optimization. | Choose LTC1044CS8#PBF only if pin compatibility with older LTC1044-based designs is mandatory and load current remains ≤20 mA. |
Compared with TC7662CPA and LTC1044CS8#PBF, TC962COE713 delivers 4× higher output current, eliminates external diodes, integrates a precision Zener reference, and offers selectable oscillator frequency - making it the sole option among the three capable of supporting 80 mA loads with on-chip reference functionality in a surface-mount package.
Availability
TC962COE713 is available at Aetrix Electronics and suitable for laptop computers, disk drives, and μP-based controllers requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for TC962COE713 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
Microchip Technology is a U.S.-based semiconductor manufacturer specializing in microcontrollers, analog devices, and interface ICs, with ISO/TS-16949 certified wafer fabrication and assembly facilities.
The TC962COE713 belongs to Microchip's high-efficiency charge pump converter product line, designed specifically to replace legacy inverter ICs in portable and industrial power management applications where low EMI, minimal external components, and high output current are essential.
FAQ
What is the maximum output current specification for TC962COE713?
The TC962COE713 is rated for a maximum continuous output current of 80 mA under specified thermal conditions (TA ≤ +70°C). This value is confirmed in the Electrical Characteristics table on DS21484D-page 3, where RO (output source resistance) is characterized at IL = 80 mA, VDD = 15 V. Exceeding this current may cause thermal shutdown or output voltage droop beyond specifications.
Does TC962COE713 require external diodes for operation?
No, TC962COE713 does not require external diodes. As stated in the Features section on DS21484D-page 1, it uses internal CMOS switches to implement the charge pump function. The functional block diagram on page 2 confirms four internal MOSFET switches (P SW1, N SW2, N SW3, N SW4) replace discrete diodes, eliminating forward voltage drop and improving efficiency.
How is the oscillator frequency configured on TC962COE713?
The oscillator frequency of TC962COE713 is configured using two pins: Pin 12 (FREQ×2) and Pin 14 (COSC). Grounding Pin 12 doubles the base frequency from 12 kHz to 24 kHz. Connecting a capacitor from Pin 14 to GND lowers the oscillator frequency - e.g., a 100 pF capacitor reduces fOSC by approximately 10%, per Figure 4-2 on DS21484D-page 6.
What is the purpose of Pin 1 (Zener Cathode) on TC962COE713?
Pin 1 on TC962COE713 is the cathode of an integrated 6.4 V Zener diode (VZ = 6.0–6.4 V at IZ = 5 mA, ZZT = 12 Ω), intended for use as a precision voltage reference in external regulator circuits. As described in Section 3.0 and Table 2-1, it provides a stable bias point for building low-noise LDOs or feedback networks without adding discrete Zener components.
Is TC962COE713 pin-compatible with TC7662CPA?
TC962COE713 is pin-compatible with TC7662CPA only in functional role-not physical layout. While both share identical pin functions (e.g., Pin 1 = Zener Cathode / Test Pin, Pin 2 = C+, Pin 3 = GND), TC962COE713 uses a 16-pin SOIC package whereas TC7662CPA uses an 8-pin DIP. Direct socket replacement is not possible; however, the TC962COE713 maintains logical pin mapping for design migration with PCB redesign.
TC962COE713 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Ratiometric
- Output Configuration:
- Positive or Negative
- Topology:
- Charge Pump
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 3V
- Voltage - Input (Max):
- 18V
- Voltage - Output (Min/Fixed):
- -Vin, 2Vin, Vin/2
- Voltage - Output (Max):
- -
- Current - Output:
- 80mA
- Frequency - Switching:
- 12kHz ~ 24kHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
TC962COE713 FAQ
1.How can I place an order for TC962COE713 through Aetrix?
Please submit a Request for Quotation (RFQ) for TC962COE713 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 TC962COE713 reliable?
The price and inventory of TC962COE713 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TC962COE713 is usually 5 days.
3.What payment methods are accepted for TC962COE713?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TC962COE713 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TC962COE713?
TC962COE713 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TC962COE713 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 TC962COE713?
For technical support, including TC962COE713 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TC962COE713 requirements.
6.How does Aetrix verify that TC962COE713 is sourced from the original manufacturer or authorized distributors?
All TC962COE713 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 TC962COE713 meets industry standards.
7.What is the process for return or replacement of TC962COE713?
All TC962COE713 units undergo pre-shipment inspection (PSI). If there is an issue with TC962COE713, 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 TC962COE713 part is unused and in its original packaging.
Return procedure for TC962COE713:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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