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CS3817BEO

CRMICRO · Audio Amplifiers · HTSSOP-28

CS3817BEO from CRMICRO, in a HTSSOP-28. 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 /SD input Standby logic input (TTL, levels up to AVCC): it must be held high (VIH ≥ 2 V) for normal operation, pulled low (VIL ≤ 0.8 V) to shut down the outputs, and must not be left floating.
2 NC unconnected No-connect (floating) pin.
3 LINP input Left-channel positive differential audio input; absolute maximum input voltage is -0.3 V to 5.3 V.
4 LINN input Left-channel negative differential audio input; absolute maximum input voltage is -0.3 V to 5.3 V.
5 NC unconnected No-connect (floating) pin.
6 NC unconnected No-connect (floating) pin.
7 AVCC power_in Analog supply input, 8.5 V to 20 V recommended (absolute maximum 22 V).
8 AGND power_in Analog ground, which is connected to the heatsink.
9 GVDD power_out High-side gate-drive voltage output, 5.0 V to 6.8 V (6.2 V typical) at 100 µA load.
10 NC unconnected No-connect (floating) pin.
11 RINN input Right-channel negative differential audio input; absolute maximum input voltage is -0.3 V to 5.3 V.
12 RINP input Right-channel positive differential audio input; absolute maximum input voltage is -0.3 V to 5.3 V.
13 NC unconnected No-connect (floating) pin.
14 NC unconnected No-connect (floating) pin.
15 PVCCR power_in Right-channel power supply input, internally connected to PVCCL; 8.5 V to 20 V recommended.
16 NC unconnected No-connect (floating) pin.
17 BSPR input Bootstrap pin for the right-channel positive high-side output.
18 OUTPR output Right-channel positive class-D PWM output (filterless, no output inductor required).
19 PGND power_in Power ground.
20 OUTNR output Right-channel negative class-D PWM output (filterless, no output inductor required).
21 BSNR input Bootstrap pin for the right-channel negative high-side output.
22 BSNL input Bootstrap pin for the left-channel negative high-side output.
23 OUTNL output Left-channel negative class-D PWM output (filterless, no output inductor required).
24 PGND power_in Power ground.
25 OUTPL output Left-channel positive class-D PWM output (filterless, no output inductor required).
26 BSPL input Bootstrap pin for the left-channel positive high-side output.
27 NC unconnected No-connect (floating) pin.
28 PVCCL power_in Left-channel power supply input, internally connected to PVCCR; 8.5 V to 20 V recommended.
29 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer CRMICRO
Package HTSSOP-28
Category Amplifiers/Comparators
Pins 29

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Supply voltage (PVCC, AVCC) PVCC, AVCC -0.3 22 V 4
Input voltage /SD VIN -0.3 V 4
Input voltage RINN, RINP, LINN, LINP VIN -0.3 5.3 V 4
Operating ambient temperature Tamb -40 85 ℃ 4
Storage temperature Tstg -65 150 ℃ 4
Load resistance R 3.2 4
Supply voltage VCC 8.5 20 V PVCC, AVCC 4
High-level input voltage /SD VIH 2 V 4
Low-level input voltage /SD VIL 0.8 V 4
Low-level output voltage VOL 0.8 V RPULL-UP=100k, VCC=18V 4
High-level input current /SD IIH 50 μA VI=2V, VCC=18V 4
Low-level input current /SD IIL 5 μA VI=0.8V, VCC=18V 4
Operating temperature TA -40 85 ℃ 4
Output offset voltage /VOS/ 1.5 15 mV VI=0V, VCC=20V, RL=8Ω, TA=25℃ 5
Gate drive voltage GVDD 5 6.2 6.8 V IGVDD=100μA, VCC=20V 5
Quiescent current ICC 40 70 mA /SD=2V, no load, PVCC=20V 5
Standby current ICC(SD) 250 400 μA /SD=0.8V, no load, PVCC=20V 5
Drain-source on-resistance, upper MOSFET rDS(ON) 240 mΩ VCC=12V, IO=500mA, TJ=25℃ 5
Drain-source on-resistance, lower MOSFET rDS(ON) 240 mΩ VCC=12V, IO=500mA, TJ=25℃ 5
Drain-source on-resistance, total rDS(ON) 480 mΩ VCC=12V, IO=500mA, TJ=25℃ 5
Turn-on time tON 100 ms /SD=2V 5
Turn-off time tOFF 2 μs /SD=0.8V 5
DC detect time tDCDET 420 ms V(RINN)=6V, V(RINP)=0V 5
Quiescent current ICC 25 50 mA /SD=2V, no load, PVCC=12V 5
Standby current ICC(SD) 200 μA /SD=0.8V, no load, PVCC=12V 5
Turn-on time (12V) tON 100 Ms /SD=2V, VCC=12V 5
Turn-off time (12V) tOFF 2 Μs /SD=0.8V, VCC=12V 5
Gate drive voltage (12V) GVDD 5 6.2 6.8 V IGVDD=2mA, VCC=12V 5
Power supply ripple rejection kSVR -70 dB 1kHz, 200mVpp ripple, input AC coupled to GND, VCC=20V, RL=8Ω 6
Output power PO 15 W THD+N=10%, f=1kHz, VCC=16V 6
Total harmonic distortion plus noise THD+N 0.1 % VCC=16V, f=1kHz, PO=7.5W (half power) 6
Output noise voltage VN 65 μV 20kHz~22kHz, with filter, VCC=20V 6
Crosstalk CT -100 dB VO=1Vrms, f=1kHz, VCC=20V 6
Signal-to-noise ratio SNR 102 dB maximum output THD+N<1%, f=1kHz, VCC=20V 6
Oscillation frequency fOSC 200 450 kHz VCC=20V 6
Thermal protection temperature 150 ℃ 6
Thermal protection hysteresis 20 ℃ 6
Power supply ripple rejection (12V) kSVR -70 dB 20Hz~1kHz, 200mVpp ripple, input AC coupled to GND, VCC=12V, RL=8Ω 6
Output power (12V) PO 10 W THD+N=10%, f=1kHz, VCC=13V 6
Total harmonic distortion plus noise (12V) THD+N 0.06 % RL=8Ω, f=1kHz, PO=5W (half power), VCC=12V 6
Output noise voltage (12V) VN 65 μV 20kHz~22kHz, with filter, VCC=12V 6
Crosstalk (12V) CT -100 dB PO=1W, f=1kHz, VCC=12V 6
Signal-to-noise ratio (12V) SNR 102 dB maximum output THD+N<1%, f=1kHz, VCC=12V 6
Oscillation frequency (12V) fOSC 200 450 kHz VCC=12V 6
Thermal protection temperature (12V) 150 ℃ VCC=12V 6
Thermal protection hysteresis (12V) 20 ℃ VCC=12V 6

CAD (KiCad official)

  • Symbol: CS3817BEO
  • Footprint: Package_SO:TSSOP-28-1EP_4.4x9.7mm_P0.65mm_EP2.85x6.7mm
  • 3D model: HTSSOP-28 (KiCad packages3D, STEP)
  • 3D model files: cs3817beo-etched.step / cs3817beo-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cs3817beo.step / cs3817beo.glb are the bare package body.

Provenance

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

  • Datasheet: CRMICRO datasheet (13 pp, sha256 f30ec26634698ba0, retrieved 2026-10-19, 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-haiku-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