ir3502b International Rectifier Corp., ir3502b Datasheet - Page 6

• Manufacturer Part Number: ir3502b
• Description: Xphase3 Control Ic
• Manufacturer: International Rectifier Corp.

PARAMETER
Minimum Voltage
Open Voltage Loop Detection
Threshold
Open Voltage Loop Detection
Delay
Enable Input
VR 11 Threshold Voltage
VR 11 Threshold Voltage
VR 11 Hysteresis
Bias Current
Blanking Time
Over-Current Comparator
Input Offset Voltage
Input Filter Time Constant
Over-Current Threshold
Over-Current Delay Counter
Over-Current Delay Counter
Over-Current Delay Counter
Over-Current Limit Amplifier
Input Offset Voltage
Transconductance
Sink Current
Unity Gain Bandwidth
Over Voltage Protection (OVP) Comparators
Threshold at Power-up
Threshold during Normal
Operation
OVP Release Voltage during
Normal Operation
Threshold during Dynamic VID
down
Dynamic VID Detect Comparator
Threshold
Propagation Delay to IIN
IIN Pull-up Resistance
Propagation Delay to OVP
OVP High Voltage
OVP Power-up High Voltage
OVP Power-up High Voltage
Page 6 of 38
TEST CONDITION
Measure V(VCCL) - V(EAOUT),
Relative to Error Amplifier maximum
voltage.
Measure PHSOUT pulse numbers from
V(EAOUT) = V(VCCL) to PGOOD =
low.
ENABLE rising
ENABLE falling
0V ≤ V(ENABLE) ≤ 3.3V
Noise Pulse < 100ns will not register an
ENABLE state change. Note 1
1V ≤ V(IIN) ≤ 3.3V
VDRP-VDAC_BUFF
ROSC = 7.75 KΩ (PHSOUT=1.5MHz)
ROSC = 15.0 KΩ (PHSOUT=800kHz)
ROSC = 50.0 KΩ (PHSOUT=250kHz)
Note 1
Note 1
Measure at 1.5V VCCLDRV
Compare to V(VDAC)
Compare to V(VDAC)
Measure time from V(VO) > V(VDAC)
(250mV overdrive) to V(IIN) transition to
> 0.9 * V(VCCL).
Measure time from V(VO) > V(VDAC)
(250mV overdrive) to V(ROSC/OVP)
transition to >1V.
Measure V(VCCL)-V(ROSC/OVP)
ROSC = 7.75 KΩ. Measure
V(VCCLDRV)-V(ROSC/OVP) @ 1.5V
ROSC = 24.5 KΩ. Measure
V(VCCLDRV)-V(ROSC/OVP) @ 1.5V
0.50
MIN
125
825
775
25
-5
75
-40
1.07
-10
35
0.75
1.1
105
-13
1.70
25
0
.100
0
90
.240
TYP
300
8
50
0
250
2
1.17
0
1.00
2.00
1.73
50
90
120
850
800
-25
4096
2048
1024
55
1.21
125
3
5
IR3502B
180
600
875
825
75
1.75
75
1.2
.375
MAX
250
5
400
-10
1.27
10
75
3.00
1.30
145
20
1.75
180
15
0.2
V3.2
UNIT
mV
mV
Pulses
mV
mV
mV
A
ns
mV
S
V
Cycle
Cycle
Cycle
mV
mA/V
uA
kHz
V
mV
mV
V
mV
nS
Ω
nS
V
V