A5974DTR STMicroelectronics, A5974DTR Datasheet - Page 12

• 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

STP16PWL05
The STP16PWL05 is a 16-channel, constant-current LED driver designed for
display backlighting.
Each channel can be programmed using external resistors at two different current
sink levels.
The device is configured through a serial interface to support basic dimming current
techniques (PWM) by using a 12/16-bit gray-scale. It is also able to support different
error detection modes, providing the results externally through the serial interface.
The device is capable of providing a master brightness control through a current
gain adjust (CGA), with two selectable ranges available. The STP16PWL05 can
synchronize or be synchronized to other similar devices by using the dedicated pin.
Key features
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Application example
12
STEVAL-ILL036V1
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16 low-side programmable channels
Up to 85 mA per channel current capability
Parallelable channels for higher LED current
±3% channel current accuracy
±1.5% channel-to-channel current matching
Programmable off-state (bias) channel current
External SMPS control (adaptive LED supply voltage) for higher efficiency
4-wire, 30 MHz serial interface
2/16-bit gray-scale (PWM) brightness control for local dimming
Grouped or independent PWM channel control
Programmable gray-scale latency
Master/slave chain configuration supported
Sales code
Board
Gray-scale
4-wires SI
Multi-channel LED driver with external DC-DC feedback control for medium/
large LCD panel backlights based on STP16PWL05 and STM32F103C6T6
clock
VDD
V IN
I LED
Current generators and
dimming control
External SMPS
STP16PWL05
converter
DC-DC
control
Description
V LED
1
16
40 V rated
channels
85 mA
up to
Key benefits
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Compact and flexible solution
High efficiency
Superior dimming capability
Complete and flexible fault
management
VFQFPN-32 5x5
Technical documents