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fix(tqfp44): default pitch to 0.8mm and pad width to 0.55mm #806

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fix(tqfp44): default pitch to 0.8mm and pad width to 0.55mm #806

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4 changes: 2 additions & 2 deletions src/fn/tqfp.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -14,9 +14,9 @@ export const tqfp = (
if (!raw_params.p) {
switch (raw_params.num_pins) {
case 32:
case 44:
raw_params.p = 0.8
break
case 44:
case 48:
raw_params.p = 0.5
break
Expand Down Expand Up @@ -54,9 +54,9 @@ export const tqfp = (
if (!raw_params.pw) {
switch (raw_params.num_pins) {
case 32:
case 44:
raw_params.pw = 0.55
break
case 44:
case 48:
case 64:
case 80:
Expand Down
22 changes: 22 additions & 0 deletions tests/tqfp44-pitch.test.ts
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Original file line number Diff line number Diff line change
@@ -0,0 +1,22 @@
import { test, expect } from "bun:test"
import { fp } from "../src/index"

test("tqfp44 defaults to standard 0.8mm pitch and 0.55mm pad width (#792)", () => {
const elements = fp.string("tqfp44").circuitJson()
const smtpads = elements.filter(
(e: any) => e.type === "pcb_smtpad",
) as Array<any>

expect(smtpads.length).toBe(44)

const pin1 = smtpads.find((p) => p.port_hints?.includes("1"))!
const pin2 = smtpads.find((p) => p.port_hints?.includes("2"))!

expect(pin1).toBeDefined()
expect(pin2).toBeDefined()

const pitch = Math.abs(pin1.y - pin2.y)
expect(pitch).toBeCloseTo(0.8, 2)
expect(pin1.height).toBeCloseTo(0.55, 2)
expect(pin1.width).toBeCloseTo(1.475, 2)
})
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