SC4905B Semtech Corporation, SC4905B Datasheet - Page 18

• Manufacturer Part Number: SC4905B
• Description: Sc4905b High-performance Voltage-mode Pwm Controller | Semtech
• Manufacturer: Semtech Corporation

POWER MANAGEMENT
SC4905B Typical Characteristics (Cont.)
2006 Semtech Corp.
3.740
3.720
3.700
3.680
3.660
3.640
3.620
3.600
3.580
1.240
1.220
1.200
1.180
1.160
1.140
1.120
1.100
1.080
101.8
101.7
101.6
101.5
101.4
101.3
101.2
101.1
101.0
100.9
-40
-40
-40
Line UVLO Hysteresis vs. Temperature
Vdd UVLO Hysteresis vs. Temperature
-25
-25
-25
Line UVLO vs. Temperature
-10
-10
-10
5
5
5
20
20
20
35
35
35
Ta (°C)
Ta (°C)
Ta (°C)
50
50
50
65
65
65
80
80
80
Vdd UVLO (Hysteresis)
LUVLO (Hysteresis)
95
95
LUVLO (Rising)
LUVLO (falling)
95
110
110
110
125
125
125
18
200
180
160
140
120
100
200
180
160
140
120
100
1400
1200
1000
80
60
80
800
600
400
200
-40
-40
-40
RC pin leakage current vs. Temperature
Oscillator Frequency vs. Temperature
Vff pin leakage current vs. Temperature
-25
-25
Oscillator Frequency 1MHz
Oscillator Frequency 300kHz
-25
-10
-10
-10
5
5
5
20
20
20
35
35
35
Ta (°C)
Ta (°C)
Ta (°C)
50
50
50
SC4905A/B
65
65
65
80
80
80
Input leakage current Irc
www.semtech.com
Input Bias current IFF
95
95
95
110
110
110
125
125
125