GreenChip II SMPS control IC - Objective data sheet Rev. 01 - 18 May 2005

Q: What is the main purpose of the TEA1530AT GreenChip II SMPS control IC?

TEA1530AT controls a compact flyback converter and enables an efficient power-supply design with high integration and low external component count.

Q: How does the TEA1530AT handle standby or very low power operation?

At very low standby loads, it activates a cycle skipping mode to minimize switching losses and reduce input power under no-load conditions.

Q: What protection and restart behavior does the TEA1530AT provide for fault conditions?

It includes safe restart mode for system faults, undervoltage lockout with safe restart from rectified mains, and other protections such as overtemperature protection and adjustable overcurrent protection.

Oct 12, 2026

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GreenChip™II TEA1530AT is a second-generation switched mode power supply (SMPS) controller IC designed for compact, cost-effective adapters with high integration and minimal external components. It supports fixed-frequency converter operation for low-voltage, high-current applications and uses cycle skipping at very low standby loads to reduce switching losses. A high-voltage BCD800 process enables effective direct start-up from rectified universal mains, while an auxiliary low-voltage BICMOS IC provides accurate protection and control for efficient, reliable power supply design.

LanguageEnglish

CategoryTechnology

FormatPDF

Pages22

Reading Time55 min

AccessFree to download

1. General description

2. Features

2.1 Distinctive features

2.2 Green features

2.3 Protection features

3. Applications

4. Ordering information

5. Block diagram

6. Pinning information

6.1 Pinning

6.2 Pin description

7. Functional description

7.1 Start-up, mains enabling operation level and undervoltage lock out

7.2 Supply management

7.3 Current control mode

7.4 Oscillator

TEA1530AT GreenChip􀃤 II SMPS control IC Rev. 01—18 May 2005 Objective data sheet 1. General description The GreenChip™II is the second generation of green Switched Mode Power Supply (SMPS) controller ICs. Its high level of integration allows the design of a cost effective power supply with a very low number of external components. The TEA1530AT can be used in Fixed Frequency converter designs for low voltage, high current applications. At low power (standby) levels, the system operates in cycle skipping mode which minimizes the switching losses during standby. The proprietary high voltage BCD800 process makes direct start-up possible from therectiﬁed universal mains voltage in an effective and green way. A second low voltage BICMOS IC is used for accurate, high speed protection functions and control. The TEA1530AT enables highly efﬁcient and reliable supplies to be designed easily. 2. Features 2. 1 Distinctive features ■ Universal mains supply operation (70 V to 276 VAC) ■ High level of integration, resulting in a very low external component count ■ Fixed frequency operation 2.2 Green features ■ Cycle skipping mode at very low loads; input power < 300 mW at no-load operation fora typical adapter application ■ On-chip start-up current source. 2.3 Protection features ■ Safe restart mode for system fault conditions ■ Undervoltage protection (foldback during overload) ■ IC OverTemperature Protection (OTP) (latched) ■ Low and adjustable OverCurrent Protection (OCP) trip level ■ Soft (re)start ■ Mains voltage-dependent operation-enabling level ■ General purpose input for latched or safe restart protection and timing, e.g. to be used for overvoltage protection (OVP), output short-circuit protection or system OTP. Philips Semiconductors TEA1530AT |
3. | GreenChip􀃤 II SMPS control IC
Applications | | --- | --- | | 4. | ■ Printer & LCD adapters / chargers / supplies. The device can however also be used in all applications that demand an efﬁcient and cost-effective solution up to 65 W.
Ordering information | Table 1: Ordering information | Type number | Package | | | | --- | --- | --- | --- | | | Name | Description | Version | | TEA1530AT SO8 plastic small outline package; 8 leads; body SOT96-1
width 3.9 mm | | | | 5. Block diagram Fig 1. Block diagram © Koninklijke Philips Electronics N.V. 2005. All rights reserved. Objective data sheet Rev. 01—18 May 2005 2 of 22 Philips Semiconductors TEA1530AT GreenChip􀃤 II SMPS control IC 6. Pinning information 6.1 Pinning |
Fig 2. Pin conﬁguration: TEA1530AT (SOT96-1) | | | --- | --- | 6.2 Pin description Table 2: Pin description | Symbol | Pin | Description | | --- | --- | --- | | V CC | 1 | supply voltage | | GND | 2 | ground | | PROTECT | 3 | protection and timing input | | CTRL | 4 | control input | | SENSE | 5 | programmable current sense input | | DRIVER | 6 | MOSFET gate driver output | | HVS | 7 | High Voltage Spacer | | DRAIN | 8 | drain of the external MOS switch, input for start-up current | 7. Functional description The TEA1530AT is the controller of a compact ﬂyback converter, with the IC situated atthe primary side. An auxiliary winding of the transformer powers the IC after start-up; see Figure 3. © Koninklijke Philips Electronics N.V. 2005. All rights reserved. Objective data sheet Rev. 01—18 May 2005 3 of 22 Philips Semiconductors TEA1530AT GreenChip􀃤 II SMPS control IC Fig 3. Typical conﬁguration The TEA1530AT operates in multi modes; see Figure 4. Fig 4. FF-CCM operation Because of the ﬁxed frequency mode, the internal oscillator determines the start of the next converter stroke. A cycle skipping mode is activated at very low power (standby) levels. © Koninklijke Philips Electronics N.V. 2005. All rights reserved. Objective data sheet Rev. 01—18 May 2005 4 of 22 Philips Semiconductors TEA1530AT GreenChip􀃤 II SMPS control IC 7.1 Start-up, mains

FAQs

What is the main purpose of the TEA1530AT GreenChip II SMPS control IC?

TEA1530AT controls a compact flyback converter and enables an efficient power-supply design with high integration and low external component count.

How does the TEA1530AT handle standby or very low power operation?

At very low standby loads, it activates a cycle skipping mode to minimize switching losses and reduce input power under no-load conditions.

What protection and restart behavior does the TEA1530AT provide for fault conditions?

It includes safe restart mode for system faults, undervoltage lockout with safe restart from rectified mains, and other protections such as overtemperature protection and adjustable overcurrent protection.

Oct 12, 2026

Upload by ahduag