Output Voltage
:
Supply Current
:
Packaging
: Reel
Number of Outputs
: Dual Output
Package / Case
: SOIC-16 Wide
Maximum Operating Temperature
: + 70 C
Minimum Operating Temperature
: 0 C
Topology
: Boost, Buck, Flyback, Forward, Full-Bridge, Half-Bridge, Push-Pull
Switching Frequency
: 400 KHz
Duty Cycle (Max)
: 49 %
Output Current
: 400 mA
Operating Supply Voltage
: 8 V to 35 V
Pinout
DescriptionThe UC3525ADWTR is one member of the UC3525 family which is designed as the regulating pulse width modulator deivce that offers improved performance and lowered external parts count when used in designing all types of switching power supplies. This device features built-in soft-start circuitry with only an external timing capacitor required and the functions of it is controlled by an undervoltage lockout which keeps the outputs off and the soft-start capacitor discharged for sub-normal input voltages.
Features of the UC3525ADWTR are:(1)8 to 35V operation; (2)5.1V reference trimmed to +/-1%; (3)100Hz to 500kHz oscillator range; (4)separate oscillator sync terminal; (5)adjustable deadtime control; (6)internal soft-start; (7)pulse-by-pulse shutdown; (8)input undervoltage lockout with hysteresis; (9)latching pwm to prevent multiple pulses; (10)dual source/sink output drivers.
The absolute maximum ratings of the UC3525ADWTR can be summarized as:(1)Supply Voltage: +40 V;(2)Collector Supply Voltage (Vc): +40 V;(3)Logic Inputs: -0.3 V to +5.5 V;(4)Analog Inputs: -0.3 V to +VIN;(5)Output Current, Source or Sink: 500 mA;(6)Reference Output Current: 50 mA;(7)Oscillator Charging Current: 5 mA;(8)Power Dissipation at TA = +25°C: 1000 mW;(9)Power Dissipation at TC = +25°C: 2000 mW;(10)Operating Junction Temperature: -55°C to +150°C;(11)Storage Temperature Range: -65°C to +150°C;(12)Lead Temperature (Soldering, 10 seconds): +300°C. If you want to know more information about it, please download the datasheet in www.seekic.com or www.chinaicmart.com .
Parameters: | Technical/Catalog Information | UC3525ADWTR |
| Vendor | Texas Instruments |
| Category | Integrated Circuits (ICs) |
| PWM Type | Voltage Mode |
| Number of Outputs | 2 |
| Package / Case | * |
| Packaging | * |
| Duty Cycle | 50% |
| Voltage - Supply | 8 V ~ 40 V |
| Frequency-Max | 500kHz |
| Buck | No |
| Boost | Yes |
| Flyback | Yes |
| Inverting | No |
| Doubler | No |
| Divider | No |
| Cuk | No |
| Isolated | No |
| Drawing Number | * |
| Operating Temperature | 0°C ~ 70°C |
| Lead Free Status | Lead Free |
| RoHS Status | RoHS Compliant |
| Other Names | UC3525ADWTR
UC3525ADWTR
|
UC3525ADWTR Data Sheet
