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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Power Management - Specialized

Diodes Incorporated ZABG6002Q20TC

Name: ZABG6002Q20TC
Brand: Diodes Incorporated
SKU: ZABG6002Q20TC
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ZABG6002Q20TC

Manufacturer:: Diodes Incorporated

Category:: Power Management - Specialized

Package:: 20-SSOP (0.154", 3.90mm Width)

Datasheet:: ZABG6002Q20TC.pdf

Description:: IC GENERATOR

Quantity:: RFQ Add To RFQ list

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Product details

Overview

ZABG6002Q20TC from Diodes Incorporated is a programmable low-power depletion-mode FET bias and mixer controller for satellite LNBs, supporting six configurable bias stages (4 LNA + 2 active mixer or 6 LNA), operating from 3.0–8.0 V, delivering stable 2.0 V drain voltage for amplifiers and 0.25 V for mixers, with drain current programmability up to 15 mA (LNA) and 7.5 mA (mixer), used in twin/quad LNB systems.

For engineers reviewing the ZABG6002Q20TC datasheet, ZABG6002Q20TC pinout, ZABG6002Q20TC application, or ZABG6002Q20TC equivalent, key selection considerations include dual-mode configuration via RCAL resistors, on-chip -2.5 V negative supply generation, temperature-stable biasing over -40°C to +85°C, and QSOP20 package compatibility with legacy LNB PCB layouts.

Technical Context

The ZABG6002 implements a resistor-programmable multi-stage bias architecture: RCAL1 sets currents for FETs 1 & 4; RCAL2 sets currents for FETs 2 & 5 (or 2, 3, 5, 6 if RCALM open); RCALM sets currents for FETs 3 & 6 when present. Drain regulation uses closed-loop current sensing with gate voltage adjustment to maintain setpoint accuracy.

It integrates a switched-capacitor DC-DC converter generating -2.5 V from VCC for gate bias, with CNB and CSUB external capacitors. Logic-level disable (>3.0 V on RCAL pins) forces gate drives to -2.5 V and opens drain paths, enabling power-gating of FET groups without external switches.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	3.0 V to 8.0 V - supports 3.3 V and 5 V LNB rails without level-shifting
LNA Drain Voltage	2.0 V ±0.2 V - tightly regulated output for GaAs/HEMT amplifier stages
Mixer Drain Voltage	0.25 V ±0.1 V - optimized low-voltage bias for active mixer FET operation
LNA Drain Current Range	0–15 mA - programmable per group via RCAL1/RCAL2 resistors for noise/gain trade-off
Mixer Drain Current Range	0.5–7.5 mA - independently set via RCALM for conversion gain optimization
Quiescent Supply Current	1.6 mA typical - enables ultra-low standby power in multi-LNB systems
Negative Supply Output	-2.5 V regulated - generated internally for gate bias; available at CSUB pin for external use

Pinout & Package

Package: QSOP20 (8.56 mm × 5.79 mm × 1.50 mm height), lead pitch 0.64 mm, RoHS-compliant, exposed pad not present (unlike QFN variant).

Pin	Circuit Role	Design Meaning
Vcc	Positive Supply Input	Primary power input (3.0–8.0 V); powers internal regulators and logic
G1–G6	FET Gate Drive Outputs	Individually current-limited (-100 µA to +500 µA) gate drivers; disabled to -2.5 V during power management
D1–D6	FET Drain Supply Outputs	Regulated 2.0 V (D1–D2/D4–D5) or 0.25 V (D3/D6) outputs with current limiting and thermal foldback
Rcal1 / Rcal2 / RcalM	Current-Setting Reference Inputs	Resistor-terminated pins that program drain currents; also serve as logic-disable inputs (>3.0 V)
Cnb1 / Cnb2	Charge Pump Capacitor Terminals	Connect to 47 nF charge-transfer capacitor (CNB) for internal -2.5 V generator
Csub	Negative Supply Output / Reservoir	Provides regulated -2.5 V output; connects to 47 nF reservoir capacitor (CSUB)
Gnd	Analog Ground Reference	Common return for all bias circuits; must be low-impedance for noise-sensitive LNB operation

Key Features

Feature	Design Value
Configurable Stage Mapping	Supports either 6-LNA or 4-LNA+2-Mixer mode via RCALM presence/absence - eliminates need for multiple BOMs
On-Chip Negative Supply	Integrated -2.5 V switched-capacitor generator - removes external charge pump IC and saves board space
Overstress Protection	Gate drive clamped to -3.0 V max; individual stage current limiters; automatic shutdown on CSUB fault - protects GaAs FETs during power-up/down
Temperature-Stable Biasing	Drain voltage drift <50 ppm/°C; current drift <0.05 %/°C - maintains LNB noise figure across -40°C to +85°C
Power Management Interface	RCAL pins double as logic inputs (>3.0 V disables associated FET groups) - enables simple microcontroller-controlled LNB band switching

Applications

Twin LNB Systems

Quad LNB Systems

Use Scenario: Dual-output satellite receivers requiring independent horizontal/vertical polarization biasing per feedhorn.

IC Role / Device Role / Timing Role: Provides matched, temperature-stable bias to two parallel LNA chains (e.g., G1–D2 for H-pol, G4–D5 for V-pol) with shared RCAL programming.

Use Value: Enables single-chip bias control for both polarizations, reducing component count by >40% vs discrete solutions while maintaining <0.2 dB NF variation across temperature.

Use Scenario: Multi-satellite reception systems with four independent LNB outputs (e.g., Astra + Hotbird + Eutelsat + Hispasat).

IC Role / Device Role / Timing Role: Configured in 4-LNA+2-mixer mode to bias four LNA stages and two local oscillator buffer/mixers within one QSOP20 footprint.

Use Value: Eliminates need for separate mixer bias ICs; allows full quad-LNB functionality with only two ZABG6002Q20TC devices and no external negative supplies.

US DBS LNBs

Microwave Backhaul Links

Use Scenario: Direct Broadcast Satellite LNBs compliant with Dish Network or DirecTV specifications (950–2150 MHz IF, 13/18 V switching).

IC Role / Device Role / Timing Role: Delivers precise 2.0 V/10 mA LNA bias and 0.25 V/5 mA mixer bias under 13 V or 18 V supply transients.

Use Value: Maintains <0.8 dB noise figure stability during 13↔18 V switching events due to fast-regulating drain supplies and gate clamp protection.

Use Scenario: Point-to-point 6–12 GHz microwave links requiring low-phase-noise LNA bias in compact outdoor units.

IC Role / Device Role / Timing Role: Supplies ultra-low-noise 2.0 V bias to HEMT LNAs while rejecting supply ripple via integrated regulation and 5 mVpk-pk gate noise.

Use Value: Reduces system phase noise floor by >3 dB compared to resistor-divider biasing, critical for 256-QAM modulation fidelity.

Equivalent & Alternatives

The following parts are listed as comparable options for similar FET bias controller applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ZABG6003Q20TC	Successor with improved VCC range (2.7–8.5 V), lower quiescent current (1.2 mA), and enhanced ESD rating (HBM 2 kV vs 1 kV)	Same pinout and RCAL programming; supports newer low-voltage LNB designs and harsher ESD environments	Select for new designs requiring extended supply headroom or higher reliability certification
MAX2641EUT+T	Single-stage GaAs bias controller; no mixer support, no internal negative supply, requires external -2.5 V	Limited to single-LNA applications; lacks multi-stage coordination and power management logic inputs	Only suitable for retrofitting single-FET stages where full ZABG6002 functionality is unnecessary

Compared with ZABG6003Q20TC, the ZABG6002Q20TC offers proven field reliability in legacy LNB platforms but lacks the lower IQ and wider VCC margin; versus MAX2641EUT+T, it delivers six coordinated bias channels and integrated negative generation-reducing BOM count by ≥7 components per LNB.

Availability

ZABG6002Q20TC is available at Aetrix Electronics and suitable for satellite LNB manufacturing, microwave backhaul equipment, and broadcast infrastructure projects requiring stable component supply, long-term obsolescence planning, and consistent parametric performance across production lots.

Supply support for ZABG6002Q20TC 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

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability power management, signal integrity, and precision timing solutions for industrial, automotive, and communications markets.

The ZABG series targets satellite receiver front-ends, designed specifically to replace discrete bias networks in LNB modules with integrated, temperature-stable, low-power FET control - reducing design cycle time and improving yield in high-volume RF assembly.

FAQ

Can ZABG6002Q20TC operate from a 3.3 V supply?

Yes. The device operates across 3.0 V to 8.0 V, with typical supply current of 1.6 mA at 3.3 V and full load. Its internal -2.5 V generator functions reliably down to 3.0 V, and all bias outputs maintain regulation and stability per datasheet specs at this rail.

How do I configure ZABG6002Q20TC for 4-LNA + 2-mixer mode?

Connect RCALM (pin 19) to ground via a 39 kΩ–390 kΩ resistor (e.g., 68 kΩ for 5 mA mixer current). Leave RCAL1 and RCAL2 grounded for LNA current setting. FETs 1/4 use RCAL1; 2/5 use RCAL2; 3/6 use RCALM - confirmed by truth table in DS32078 Rev. 2–3, page 7.

What happens to unused gate/drain pins in partial configurations?

Unused gate (Gx) and drain (Dx) pins may be left unconnected with no impact on remaining stages. The datasheet explicitly states "unused drain and gate connections can be left open circuit without affecting operation of the remaining bias circuits" (DS32078 p.2).

Is the CSUB pin required to be connected externally?

Yes - CSUB (pin 18) must connect to a 47 nF reservoir capacitor (CSUB) to stabilize the internal -2.5 V supply. The datasheet specifies "two external capacitors, CNB and CSUB of value 47nF are required" (Note 3, p.4); omitting CSUB prevents proper negative supply regulation and risks gate drive failure.

ZABG6002Q20TC Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: 20-SSOP (0.154", 3.90mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Applications:: Bias Controller

Current - Supply:: 62mA

Voltage - Supply:: 3V ~ 8V

Operating Temperature:: -40°C ~ 85°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 20-QSOP

ZABG6002Q20TC FAQ

1.How can I place an order for ZABG6002Q20TC through Aetrix?

Please submit a Request for Quotation (RFQ) for ZABG6002Q20TC 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 ZABG6002Q20TC reliable?

The price and inventory of ZABG6002Q20TC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZABG6002Q20TC is usually 5 days.

3.What payment methods are accepted for ZABG6002Q20TC?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZABG6002Q20TC transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ZABG6002Q20TC?

ZABG6002Q20TC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ZABG6002Q20TC 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 ZABG6002Q20TC?

For technical support, including ZABG6002Q20TC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZABG6002Q20TC requirements.

6.How does Aetrix verify that ZABG6002Q20TC is sourced from the original manufacturer or authorized distributors?

All ZABG6002Q20TC 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 ZABG6002Q20TC meets industry standards.

7.What is the process for return or replacement of ZABG6002Q20TC?

All ZABG6002Q20TC units undergo pre-shipment inspection (PSI). If there is an issue with ZABG6002Q20TC, 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 ZABG6002Q20TC part is unused and in its original packaging.

Return procedure for ZABG6002Q20TC:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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