UC3842G UTC [Unisonic Technologies], UC3842G Datasheet - Page 6

• Manufacturer Part Number: UC3842G
• Description: HIGH PERFORMANCE CURRENT MODE CONTROLLER
• Manufacturer: UTC [Unisonic Technologies]

UC3842G
High peak current associated with capacity loads necessitate careful grounding techniques. Timing and bypass
capacitors should be connected close to pin5 in single point GND.
During Under-Voltage Lockout, the output driver is biased to a high impedance state. Pin6 should be shunt to
GND with a bleeder resistor to prevent activing the power switch with output leakage currents.
Error amplifier can source or sink up to 0.5mA
OPEN-LOOP TEST CIRCUIT
UNDER-VOLTAGE LOCKOUT
ERROR AMPLIFIER CONFIGURATION
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
or
V
IN
Vpwl
100k
Ra
adjust
100k
5K
Rb
V
3.3n
COMP
C
V
T
FB
10p
1
2
3
4
COMP
FB
CS
CT
Output
GND
LINEAR INTEGRATED CIRCUIT
V
V
REF
CC
8
7
6
5
V
CC
C
470μ
IN
QW-R103-036,A
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