ES9218P datasheet(100/101 Pages) ESS

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ES9218P Datasheet

December 6, 2018

CONFIDENTIAL ADVANCE INFORMATION 1.8

ESS TECHNOLOGY, INC. 237 South Hillview Drive, Milpitas, CA 95035, USA Tel (408) 643-8800 • Fax (408) 643-8801

100

RPC-1 Classification reflow profile

Profile Feature

Pb-Free Assembly

Preheat/Soak

Temperature Min (Tsmin)

Temperature Max (Tsmax)

Time (ts) from (Tsmin to Tsmax)

150°C

200°C

60-120 seconds

Ramp-up rate (TL to Tp)

3°C / second maximum

Liquidous temperature (TL)

Time (tL) maintained above TL

217°C

60-150 seconds

Peak package body temperature (Tp)

For users Tp must not exceed the classification temp in Table RPC-

For suppliers Tp must equal or exceed the Classification temp in

Table RPC-2.

Time (tp)* within 5°C of the specified classification temperature (Tc),

see Figure

30* seconds

Ramp-down rate (Tp to TL)

6°C / second maximum

Time 25°C to peak temperature

8 minutes maximum

* Tolerance for peak profile temperature (Tp) is defined as a supplier minimum and a user maximum.

Note 1: All temperatures refer to the center of the package, measured on the package body surface that is facing up during assembly reflow (e.g.,

live-bug). If parts are reflowed in other than the normal live-bug assembly reflow orientation (i.e., dead-bug), Tp shall be within ±2°C of the

live-bug Tp and still meet the Tc requirements, otherwise, the profile shall be adjusted to achieve the latter. To accurately measure actual

peak package body temperatures, refer to JEP140 for recommended thermocouple use.

Note 2: Reflow profiles in this document are for classification/preconditioning and are not meant to specify board assembly profiles. Actual board

assembly profiles should be developed based on specific process needs and board designs and should not exceed the parameters in

Table RPC-1.

For example, if Tc is 260°C and time tp is 30 seconds, this means the following for the supplier and the user.

For a supplier: The peak temperature must be at least 260°C. The time above 255°C must be at least 30 seconds.

For a user: The peak temperature must not exceed 260°C. The time above 255°C must not exceed 30 seconds.

Note 3: All components in the test load shall meet the classification profile requirements.

RPC-2 Pb-Free Process – Classification Temperatures (Tc)

Package Thickness

Volume mm3, <350

Volume mm3, 350 to 2000

Volume mm3, >2000

<1.6 mm

260°C

1.6 mm – 2.5 mm

260°C

250°C

245°C

>2.5 mm

250°C

245°C

Note 1: At the discretion of the device manufacturer, but not the board assembler/user, the maximum peak package body temperature (Tp) can

exceed the values specified in Table RPC-2. The use of a higher Tp does not change the classification temperature (Tc).

Note 2: Package volume excludes external terminals (e.g., balls, bumps, lands, leads) and/or nonintegral heat sinks.

Note 3: The maximum component temperature reached during reflow depends on package thickness and volume. The use of convection reflow

processes reduces the thermal gradients between packages. However, thermal gradients due to differences in thermal mass of SMD

packages may still exist.

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