MIC5021 Datasheet, PDF (4/9 Pages) Micrel Semiconductor – High-Speed High-Side MOSFET Driver

MIC5021
Typical Characteristics
Supply Current vs.
Supply Voltage
2.5
2.0
V_IN = 0V
1.5
V_IN = 5V
1.0
0.5
0.0
5
10 15 20 25 30 35 40
V_SUPPLY (V)
Gate Voltage Change
vs. Supply Voltage
25
V_GATE = V_GATE – V_SUPPLY
20
15
10
5
0
5 10 15 20 25 30 35 40
V_SUPPLY (V)
Micrel
Gate Turn-On Delay vs.
Supply Voltage
900
V_GATE = V_SUPPLY + 4V
850
C_L = 1500pF (IRCZ34)
C_BOOST = 0.01µF
800
750
700
INCLUDES PROPAGATION DELAY
650
5
10 15 20 25 30 35 40
V_SUPPLY (V)
1000
950
900
Gate Turn-On Delay vs.
Supply Voltage
V_GATE = V_SUPPLY + 10V
C_L = 1500pF (IRCZ34)
C_BOOST = 0.01µF
850
800
750
5
INCLUDES PROPAGATION DELAY
10 15 20 25 30 35 40
V_SUPPLY (V)
Gate Turn-On Delay vs.
Gate Capacitance
2.5
V_GATE = V_SUPPLY + 4V
2.0 ^VSUPPLY ^{= 12V}
1.5
1.0
0.5
INCLUDES PROPAGATION DELAY
0.0
1x10⁰ 1x10¹ 1x10² 1x10³ 1x10⁴ 1x10⁵
C_GATE (pF)
2000
1750
Gate Turn-Off Delay vs.
Supply Voltage
V_GATE = V_SUPPLY + 4V
R_L = 400
1500
1250
C_GATE = 1500pF
(IRCZ34)
1000
750
5
INCLUDES PROPAGATION DELAY
10 15 20 25 30 35 40
V_SUPPLY (V)
Overcurrent Retry Duty
Cycle vs. Timing Capacitance
25
t_ON = 5µs
20
V_SUPPLY = 12V
Input Current vs.
Input Voltage
100
V_SUPPLY = 12V
80
15
60
10 _NOTE:
t_ON, t_OFF TIME
5 ^INDEPENDENT
OF V_SUPPLY
0
0.1 1
10 100 1000 10000
C_T (pF)
40
20
0
05
Input
TTL (H)
0V
Gate 15V (max.)
Source
Sense +, – 50mV
Differential
0V
10 15 20 25
V_IN (V)
Sense Threshold vs.
Temperature
80
70
60
50
40
30
20
-60 -30 0 30 60 90 120 150
TEMPERATURE (°C)
Timing Diagram 1. Normal Operation
6µs
20µs
Input
TTL (H)
0V
Gate ^{15V (max.)}
Source
Sense +, – 50mV
Differential
0V
6µs
Input
TTL (H)
0V
Gate ^{15V (max.)}
Source
Sense +, – 50mV
Differential
0V
Timing Diagram 2. Fault Condition, C_T = Open
Timing Diagram 3. Fault Condition, C_T = Grounded
5-172
October 1998