UC2845BN STMicroelectronics, UC2845BN Datasheet - Page 13

• Manufacturer Part Number: UC2845BN
• Description: IC CTRLR PWM CURR-MODE 8-MINIDIP
• Manufacturer: STMicroelectronics

Specifications of UC2845BN

• Pwm Type: Current Mode
• Number Of Outputs: 1
• Frequency - Max: 500kHz
• Duty Cycle: 50%
• Voltage - Supply: 8.2 V ~ 25 V
• Buck: No
• Boost: Yes
• Flyback: Yes
• Inverting: No
• Doubler: No
• Divider: No
• Cuk: No
• Isolated: Yes
• Operating Temperature: -25°C ~ 85°C
• Package / Case: 8-DIP (0.300", 7.62mm)
• Frequency-max: 500kHz
• Duty Cycle (max): 50 %
• Output Voltage: 4.95 V to 5.05 V
• Output Current: 1000 mA (Max)
• Mounting Style: Through Hole
• Switching Frequency: 500 KHz
• Operating Supply Voltage: 30 V
• Maximum Operating Temperature: 150 C
• Fall Time: 50 ns
• Minimum Operating Temperature: - 40 C
• Rise Time: 50 ns
• Synchronous Pin: No
• Topology: Boost or Flyback
• Number Of Pwm Outputs: 1
• On/off Pin: No
• Adjustable Output: No
• Switching Freq: 500kHz
• Operating Supply Voltage (max): 30V
• Operating Temperature Classification: Automotive
• Mounting: Through Hole
• Pin Count: 8
• Package Type: PDIP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-3680; 497-3680-5; 497-3680

(1) D and F do not include mold flash or protrusions. Mold flash or
DIM.
D (1)
F (1)
potrusions shall not exceed 0.15mm (.006inch).
a1
a2
a3
b1
c1
e3
M
A
C
E
S
b
e
L
MIN.
0.65
0.35
0.19
0.25
0.1
4.8
5.8
3.8
0.4
TYP.
1.27
3.81
mm
MAX.
1.75
0.25
1.65
0.85
0.48
0.25
1.27
0.5
5.0
6.2
4.0
0.6
8 (max.)
45 (typ.)
0.004
0.026
0.014
0.007
0.010
0.189
0.228
0.016
MIN.
0.15
0.050
0.150
TYP.
inch
MAX.
0.069
0.010
0.065
0.033
0.019
0.010
0.020
0.197
0.244
0.050
0.024
0.157
UC2842B/3B/4B/5B - UC3842B/3B/4B/5B
MECHANICAL DATA
OUTLINE AND
SO8
13/15