A5974DTR STMicroelectronics, A5974DTR Datasheet - Page 48

• Manufacturer Part Number: A5974DTR
• Description: IC BUCK ADJ 2.5A 8SOIC
• Manufacturer: STMicroelectronics
• Series: -r
• Type: Step-Down (Buck)r

Specifications of A5974DTR

• Internal Switch(s): -
• Synchronous Rectifier: -
• Number Of Outputs: -
• Voltage - Output: 1.235 V ~ 35 V
• Current - Output: 2.5A
• Frequency - Switching: 250kHz
• Voltage - Input: 4 V ~ 36 V
• Operating Temperature: -
• Mounting Type: *
• Package / Case: *
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 497-11424-2

STM32 (cont’d)
25 W LED street light with 80 W solar energy charger based on STM32
Demonstration board features
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Q
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STEVAL-ILL022V1
Q
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Maximum power point tracker (MPPT) for more efficient energy use
Automatic day/night detection
Automatic battery/mains switchover
Constant-current control for LED lamp
Battery charge control with temperature monitoring
Easy system monitoring via debug indicators
Sales code
Solar panel
Uba
DC-DC
Switch
Linear
Board
3.3 V
12 V
Usc-
Usc+
PWM input
Isc
Mains enable
25 W LED streetlight with 80 W solar-energy charger based on STM32
Usc+
Usc-
Charger
DC-DC
Driver
Isc
PWM_charger
Controller
Iba
STM32F
OVP
Battery
Description
Uba
Iba
ULED
ILED
Uba
LED driver
Statusindication
Temperature
DC-DC
Driver
sensor
OCP
ILED
Demonstration board key
benefits
Q
Q
Q
Q
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Q
OVP
Flexible solution
Full protection function for battery,
LED lamp and solar panel
High efficiency
Charger sense
LED driver sense
Battery sense
LED lamp sense
AN2946: Solar-LED streetlight controller
with 25 W LED lamp driver and 85 W
battery charger based on the
STM32F101Rx
UM0512: STEVAL-ILL022V1 solar-LED
streetlight controller with 25 W LED lamp
driver and 80 W battery charger based on
the STM32F101Rx
ULED
Technical documents
LED lamp