TI-UCC12041-Q1：高效能低EMI隔离DC/DC转换器
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TI-UCC12041-Q1是一款高效、低电磁干扰（EMI）的3-kVRMS基本隔离型DC/DC转换器，专为在恶劣环境条件下工作的汽车电子应用而设计。这款转换器采用集成变压器技术，确保了高效能和可靠性。
1. 主要特性
- 高效率：UCC12041-Q1集成了先进的变压器设计，提供了高效的电源转换，降低了能量损失。
- AEC-Q100认证：符合汽车电子委员会的AEC-Q100 Grade 1标准，工作温度范围为-40°C至125°C，适用于极端环境下的应用。
- 功能安全：该器件具备功能安全能力，提供相关的文档以支持功能安全系统设计，满足ISO 26262等标准的要求。
- 输出功率：典型值为500毫瓦，可提供稳定的5V或3.3V输出电压，并且可以选择400-mV的压差来驱动低压差稳压器（LDO）。
- 输入电压范围：4.5V至5.5V，适应性强。
- 强大的隔离屏障：隔离等级为3kVRMS，具有6.5kVPK的浪涌承受能力，工作电压为850VRMS，最小共模瞬态抗扰度（CMTI）为100V/ns，确保电气隔离的安全性。
- 安全保护功能：内置热关断和短路恢复机制，防止过热和短路情况对设备造成损害。
- 封装形式：16引脚宽体SOIC封装，提供超过8毫米的爬电距离和间隙，增强了电气安全性。
- 扩展温度范围：可在-40°C至125°C的环境中稳定工作。
- 认证计划：预期通过DIN V VDE V 0884-11:2017-01、UL 1577（3000 VRMS隔离1分钟）、IEC 60950-1和IEC 62368-1设备标准以及GB4943.1-2011的CQC认证，符合全球安全标准。
2. 应用场景和用途
- UCC12041-Q1适用于各种汽车电子应用，包括车载充电器和电池管理系统。在这些应用场景中，转换器的高效率和良好的隔离性能对于保障系统安全和优化能源利用至关重要。例如，在车载充电器中，它可以将车载电源转换为适合电池充电的稳定电压，同时防止高压回路与车辆低压系统的相互干扰。在电池管理系统中，它能提供稳定的电源，确保传感器和控制单元正常工作，且不会受到电池电压波动的影响。
TI-UCC12041-Q1是一款理想的隔离型DC/DC转换器，适用于对可靠性和安全性有严格要求的汽车电子系统。其高效能、功能安全设计以及多种保护功能使其成为严苛环境下应用的理想选择。
6.6 Insulation Specifications (continued)
PARAMETER TEST CONDITIONS VALUE UNIT
UL 1577 (Planned Certification Target)
V
ISO
Withstand isolation voltage
V
TEST
= V
ISO
= 3000 V
RMS
, t = 60 s (qualification); V
TEST
= 1.2
× V
ISO
= 3600 V
RMS
, t = 1 s (100% production)
3000 V
RMS
(1) Creepage and clearance requirements should be applied according to the specific equipment isolation standards of an application.
Care should be taken to maintain the creepage and clearance distance of a board design to ensure that the mounting pads of
the isolator on the printed-circuit board do not reduce this distance. Creepage and clearance on a printed-circuit board become
equal in certain cases. Techniques such as inserting grooves and/or ribs on a printed circuit board are used to help increase these
specifications.
(2) This coupler is suitable for basic insulation only within the maximum operating ratings. Compliance with the safety ratings are ensured
by means of suitable protective circuits.
(3) Testing is carried out in air or oil to determine the intrinsic surge immunity of the isolation barrier.
(4) Apparent charge is electrical discharge caused by a partial discharge (pd).
(5) All pins on each side of the barrier tied together creating a two-terminal device.
6.7 Safety-Related Certifications
VDE UL UL CQC
Plan to certify according to DIN V
VDE V 0884-11:2017- 01
Plan to certify according to IEC
60950-1 and IEC 62368-1
Plan to certify under UL 1577
Component Recognition Program
Plan to certify according to
GB4943.1-2011
Basic insulation Maximum transient
isolation voltage, 4243 VPK;
Maximum repetitive peak isolation
voltage, 1202 VPK; Maximum surge
isolation voltage, 5000 VPK
Basic insulation per UL
60950-1-07+A1+A2, IEC 60950-1
2nd Ed.+A1+A2, UL 62368-1- 14
and IEC 62368-1 2nd Ed., 850
VRMS maximum working voltage
(pollution degree 1, material group I)
Single protection, 3000 VRMS
Basic insulation, Altitude ≤ 5000 m,
Tropical Climate, 595 V
RMS
maximum
working voltage
Certificate number: (planned) Master contract number: (planned) File number: (planned) Certificate number: (planned)
6.8 Safety Limiting Values
Safety limiting intends to minimize potential damage to the isolation barrier upon failure of input or output circuitry, resulting in
zero power delivered to V
ISO
and all the power being dissipated inside the device.
PARAMETER TEST CONDITIONS MAX UNIT
I
S
Safety input current
(1)
R
θJA
= 57.5°C/W, V
I
= 5.5 V, T
J
= 150°C, T
A
= 25°C
(see Figure 6-2)
395
mA
R
θJA
= 57.5°C/W, V
I
= 4.5 V, T
J
= 150°C, T
A
= 25°C
(see Figure 6-2)
483
P
S
Safety input power
R
θJA
= 57.5°C/W, T
J
= 150°C, T
A
= 25°C (see Figure
6-3)
2174 mW
T
S
Safety temperature
(1)
150 °C
(1) The maximum safety temperature, T
S
, has the same value as the maximum junction temperature, T
J
, specified for the device. The
I
S
and P
S
parameters represent the safety current and safety power respectively. The maximum limits of I
S
and P
S
should not be
exceeded. These limits vary with the ambient temperature, T
A
.
The junction-to-air thermal resistance, R
θJA
, in the Thermal Information table is that of a device installed on a high-K test board for
leaded surface-mount packages. Use these equations to calculate the value for each parameter:
T
J
= T
A
+ R
θJA
× P, where P is the power dissipated in the device.
T
J(max)
= T
S
= T
A
+ R
θJA
× P
S
, where T
J(max)
is the maximum allowed junction temperature.
P
S
= I
S
× V
I
, where V
I
is the maximum input voltage.
UCC12041-Q1
SLUSEE6 – JUNE 2021
www.ti.com
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Copyright © 2021 Texas Instruments Incorporated
Product Folder Links: UCC12041-Q1
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