AMtek AM7228
AM7228 is slope adjust by external resistor, that can meet most of fan request. This IC employs soft switching drive, Bi-CMOS process, and realizes silent drive, low ON resistor, and low power consumption. This also incorporate lock protection and auto restart circuit which does not require external capacitor.| Part No. | AM7228 |
|---|---|
| Datasheet | AM7228 Download |
| Manufacturer |  AMtek |
| Description | Single Phase Full-Wave Motor Driver |
| Buy | Stock & Price |
APPLICATIONS
Optimum for driving 12V fan for general consumer equipment●
FEATURES
1) Slope adjust mode for VH and VL pin control. 6) Power Tr incorporated. ~Confidential~ 2) Soft switched drive. 3) PWM speed control. 4) Rotating speed pulse signal (FG) output. 5) Incorporating lock protection and automatic restart circuit.●
ABSOLUTE MAXIMUM RATINGS
(Ta = 25℃) 7) Hall Bias voltage built-in. 8) Soft start function built-in for reducing power up acoustic noise. Parameter Supply voltage Symbol VCC Limits 18 Unit V Output current Iomax 1200 mA FG single output current FG single output voltage IFG 10 mA VFG 18 V Vref output current Iref 10 mA HB output current High duty slope setting voltage IHB 10 mA VH 6 V Low duty slope setting voltage VL 6 V Minimum Speed setting voltage VRMI 6 V Power dissipation (JEDEC 2S2P PCB) Pd 3030* mW Operate temperature range Topr -40～+105 ℃ Storage temperature range Tstg -55～+150 ℃ Junction temperature Tjmax 150 ℃ * Pd de-rated by 24.2mW/C over 25℃ (based on JEDEC 2S2P board) Those are stress rating only and functional operating at those conditions for extended periods may damage to the device.
