BQ24450: BQ24450 24V Lead Acid Battery charger circuit Resistors Value

RAJKUMAR SHARMA

Part Number: BQ24450

HI,

I want to make 24V Lead Acid Battery Charger (SLA) Charger, Required Max Output current 1Amp, Please suggest me value of resistors Ra, Rb, Rc,Rd,Rt and Rp.

over 6 years ago

0 Bill Johns over 6 years ago

TI__Guru 69186 points

Hello
I can recommend values for you to evaluate but will need information on the battery such as V-th, V-float, V-boost, charge rate, trickle charge rate?

0 RAJKUMAR SHARMA over 6 years ago in reply to Bill Johns

Prodigy 40 points

Hi John,

Thanks for prompt reply, please follow bellow information.

VIN 32V Miniumum
VIN Maximum 36V
VTH 21V
VFLOT 27.4
VBOOST 28.8
IMAX 1800MA

I want to Charge 24V 9Ah Battery, Max current would be 1.8A?? ( 1800mA)

Regards,

Raj

0 RAJKUMAR SHARMA over 6 years ago in reply to RAJKUMAR SHARMA

Prodigy 40 points

also i am going to use MJD2955 + TIP35C Transistor, since my current is higher then 1Amp

0 Bill Johns over 6 years ago in reply to RAJKUMAR SHARMA

TI__Guru 69186 points

I will private message you the recommended values.

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BQ24450: BQ24450 24V Lead Acid Battery charger circuit Resistors Value