MIC5021
Micrel
Typical Characteristics
Supply Current vs.
Supply Voltage
V
IN
= 0V
V
GATE
(V)
Gate Voltage Change
vs. Supply Voltage
25
V
GATE
= V
GATE
– V
SUPPLY
20
15
10
5
0
Gate Turn-On Delay vs.
Supply Voltage
900
850
t
ON 4V
(ns)
800
750
INCLUDES PROPAGATION DELAY
2.5
2.0
I
SUPPLY
(mA)
1.5
1.0
0.5
0.0
V
GATE
= V
SUPPLY
+ 4V
C
L
= 1500pF (IRCZ34)
C
BOOST
= 0.01µF
V
IN
= 5V
700
650
5
10
15
25 30
V
SUPPLY
(V)
20
35
40
5
10
15
25 30
V
SUPPLY
(V)
20
35
40
5
10
15
20 25 30
V
SUPPLY
(V)
35
40
Gate Turn-On Delay vs.
Supply Voltage
1000
950
t
ON 10V
(ns)
900
850
800
INCLUDES PROPAGATION DELAY
Gate Turn-On Delay vs.
Gate Capacitance
2.5
Gate Turn-Off Delay vs.
Supply Voltage
2000
V
GATE
= V
SUPPLY
+ 4V
R
L
= 400
V
GATE
= V
SUPPLY
+ 10V
C
L
= 1500pF (IRCZ34)
C
BOOST
= 0.01µF
t
ON
(µs)
2.0
1.5
1.0
0.5
V
GATE
= V
SUPPLY
+ 4V
V
SUPPLY
= 12V
1750
t
OFF 4V
(ns)
1500
1250
1000
C
GATE
= 1500pF
(IRCZ34)
INCLUDES PROPAGATION DELAY
INCLUDES PROPAGATION DELAY
750
5
10
15
25 30
V
SUPPLY
(V)
20
35
40
0.0
1x10
0
1x10
1
1x10
2
1x10
3
1x10
4
1x10
5
C
GATE
(pF)
750
5
10
15
20 25 30
V
SUPPLY
(V)
35
40
Overcurrent Retry Duty
Cycle vs. Timing Capacitance
25
RETRY DUTY CYCLE (%)
20
15
10
5
0
0.1
NOTE:
t
ON
, t
OFF
TIME
INDEPENDENT
OF V
SUPPLY
1
10
100
C
T
(pF)
1000 10000
t
ON
= 5µs
V
SUPPLY
= 12V
I
IN
(µA)
100
80
Input Current vs.
Input Voltage
V
SUPPLY
= 12V
VOLTAGE (mV)
Sense Threshold vs.
Temperature
80
70
60
50
40
30
60
40
20
0
0
5
10
15
V
IN
(V)
20
25
20
-60 -30 0 30 60 90 120 150
TEMPERATURE (°C)
Input
Gate
Sense +, –
Differential
TTL (H)
0V
15V (max.)
Source
50mV
0V
Timing Diagram 1. Normal Operation
6µs
20µs
6µs
Input
Gate
Sense +, –
Differential
TTL (H)
0V
15V (max.)
Source
50mV
0V
Input
Gate
Sense +, –
Differential
TTL (H)
0V
15V (max.)
Source
50mV
0V
Timing Diagram 2. Fault Condition, C
T
= Open
5-172
Timing Diagram 3. Fault Condition, C
T
= Grounded
October 1998
MICREL [ MICREL SEMICONDUCTOR ]
