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TL594CDR2G

Buck, Push-Pull Regulator Positive Output Step-Down, Step-Up/Step-Down DC-DC Controller IC 16-SOIC

Manufacturer:

ON Semiconductor, LLC
Mfr.Part #:

TL594CDR2G
Datasheet:

TL594CDR2G Datasheet (PDF)
Case Outline:

948F-01
MSL Temp (°C):

260
Container Type:

REEL
Topology:

Push-Pull
EDA/CAD Models:

Request Free CAD Models for TL594CDR2G

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TL594CDR2G General Description

The TL594 PWM Controller incorporates all the functions required in the construction of a pulse width modulation (PWM) control circuit on a single chip. Designed primarily for power-supply control, this device offers the systems engineer the flexibility to tailor the power-supply control circuitry to a specific application.

The TL594 PWM Controller contains two error amplifiers, an on-chip adjustable oscillator, a dead-time control (DTC) comparator, a pulse-steering control flip-flop, a 5-V regulator with a precision of 1.5%, an undervoltage lockout control circuit, and output control circuitry.

The error amplifiers have a common-mode voltage range of -0.3 V to VCC-2 V. The DTC comparator has a fixed offset that provides approximately 5% dead time. The on-chip oscillator can be bypassed by terminating RT to the reference output and providing a sawtooth input to CT, or it can be used to drive the common circuitry in synchronous multiple-rail power supplies.

The uncommitted output transistors provide either common-emitter or emitter-follower output capability. Each device provides for push-pull or single-ended output operation, with selection by means of the output-control function. The architecture of these devices prohibits the possibility of either output being pulsed twice during push-pull operation. The undervoltage lockout control circuit locks the outputs off until the internal circuitry is operational.
The TL594CD, CN, CDTB are characterized for operation from -40C to 85C.

Key Features

Complete Pulse Width Modulation Control Circuitry
On-Chip Oscillator with Master or Slave Operation
On-Chip Error Amplifiers
On-Chip 5.0 V Reference, 1.5% Accuracy
Adjustable Deadtime Control
Uncommitted Output Transistors Rated to 500 mA Source or Sink
Output Control for Push-Pull or Single-Ended Operation
Undervoltage Lockout
Pb-Free Packages are Available
PWM Buck Controller Configuration
Variable Frequency Operation (up to 300 KHz)

Application

Off-line power supply
Buck converter

Specifications

Status	Active	Case Outline	948F-01
MSL Temp (°C)	260	Container Type	REEL
Product Category	Switching Controllers	Topology	Push-Pull
Number of Outputs	1 Output	Switching Frequency	40 kHz
Duty Cycle - Max	48 %	Input Voltage	15 V
Output Voltage	-	Output Current	500 mA
Minimum Operating Temperature	- 40 C	Maximum Operating Temperature	+ 85 C
Mounting Style	SMD/SMT	Fall Time	40 ns
Height	1.5 mm	Isolation	Non-Isolated
Length	10 mm	Operating Supply Current	11 mA
Operating Supply Voltage	15 V	Product	Switching Controllers
Product Type	Switching Controllers	Rise Time	100 ns
Series	TL594	Factory Pack Quantity	2500
Subcategory	PMIC - Power Management ICs	Type	Voltage Mode PWM Controller
Unit Weight	0.023492 oz