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HT8698

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Jiaxing Heroic Elec Tech Audio Power OpAmps, TSSOP-20-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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HT8698

Jiaxing Heroic Elec Tech · Audio Power OpAmps · TSSOP-20-EP

HT8698 from Jiaxing Heroic Elec Tech, in a TSSOP-20-EP. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 DGND power_in Power ground (shared function with pin 20).
2 PVDDL power_in Boost converter output voltage / left channel supply voltage, PVDD range VBAT to 7.0V (6.0V typical setting).
3 OUTL- output Left channel inverting output (BTL-).
4 PGNDL power_in Left channel power ground.
5 OUTL+ output Left channel non-inverting output (BTL+).
6 INL+ input Left channel non-inverting (differential +) input, with PN ESD protection.
7 INL- input Left channel inverting (differential -) input, with PN ESD protection.
8 PVDDR power_in Right channel supply voltage, connected to the boost output PVDD.
9 OUTR- output Right channel inverting output (BTL-).
10 PGNDR power_in Right channel power ground.
11 OUTR+ output Right channel non-inverting output (BTL+).
12 INR+ input Right channel non-inverting (differential +) input, with PN ESD protection.
13 INR- input Right channel inverting (differential -) input, with PN ESD protection.
14 CTRL input Mode control input with 60 kΩ internal pull-down: SD 0 to 0.06×PVDD, Class AB 0.10 to 0.40×PVDD, ACF-On 0.45 to 0.70×PVDD, ACF-Off ≥0.75×PVDD.
15 AGND power_in Analog ground.
16 VBAT power_in Battery supply voltage, 2.5V to 5.5V (UVLO start 2.5V, shutdown 2.2V).
17 FB input Boost voltage feedback sense point; PVDD = 1.24×(Rd1+Rd2)/Rd2.
18 LX passive Boost switch input connected to the inductor (shared function with pin 19); keep traces short and thick.
19 LX passive Boost switch input connected to the inductor (shared function with pin 18); keep traces short and thick.
20 DGND power_in Power ground (shared function with pin 1).
21 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer Jiaxing Heroic Elec Tech
Package TSSOP-20-EP
Category Amplifiers
Pins 21

CAD (KiCad official)

  • Symbol: HT8698
  • Footprint: Package_SO:TSSOP-20-1EP_4.4x6.5mm_P0.65mm_EP2.15x3.35mm
  • 3D model: TSSOP-20-EP, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 1.2 mm nominal TSSOP height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
  • 3D model files: ht8698-etched.step / ht8698-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ht8698.step / ht8698.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Jiaxing Heroic Elec Tech datasheet (17 pp, sha256 b3eab1eb7db3fb3e, retrieved 2026-10-23, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF