CS3524A
CS3524A is Voltage Mode PWM Control Circuit manufactured by onsemi.
features an undervoltage lockout circuit which disables all internal circuitry (except the reference) until the input voltage has risen to 8.0 V. This holds standby current low until turn- on, and greatly simplifies the design of low power, off- line supplies. The turn- on circuit has approximately 600 m V of hysteresis for jitter free activation.
Other improvements include a PWM latch that insures freedom from multiple pulsing within a period, even in noisy environments; logic to eliminate double pulsing on a single output, a 200 ns external shutdown capability, and automatic thermal protection from excessive chip temperature. The oscillator circuit is usable to 500 k Hz and is easier to synchronize with an external clock pulse.
Features
- Precision Reference Internally Trimmed to ±1%
- Current Limit
- Undervoltage Lockout
- Start- Up Supply Current < 4.0 m A
- Output to 200 m A
- 60 V Output Capability
- Wide mon- Mode Input Range for Error and Current Limit
Amplifiers
- PWM Latch Insures Single Pulse per Period
- Double Pulse Suppression
- 200 ns Shutdown
- Guaranteed Frequency
- Thermal Shutdown http://onsemi.
1 DIP- 16
N SUFFIX CASE 648
MARKING DIAGRAMS 16
CS3524A AWLYYWW
1 SO- 16L DW SUFFIX CASE 751G
CS3524A AWLYYWW
A WL, L YY, Y WW, W
= Assembly Location = Wafer Lot = Year = Work Week
PIN CONNECTIONS
1 EA-
EA+
SYNC
ISENSE+ ISENSE-
RT CT GND
VREF VIN EB VOUTB VOUTA
EA SHUTDOWN
ORDERING INFORMATION
Device...