HIP2120 Datasheet, PDF (1/16 Pages) Intersil Corporation – 100V, 2A Peak, High Frequency Half-Bridge Drivers with Adjustable Dead Time Control and PWM Input

100V, 2A Peak, High Frequency Half-Bridge Drivers with
Adjustable Dead Time Control and PWM Input
HIP2120, HIP2121
The HIP2120 and HIP2121 are 100V, high frequency, half-bridge
MOSFET driver ICs. They are based on the popular ISL2100A and
ISL2101A half-bridge drivers.
These drivers have a programmable dead-time to insure
break-before-make operation between the high-side and low-side
drivers. The dead-time is adjustable up to 250ns.
A single PWM logic input controls both bridge outputs (HO, LO). An
enable pin (EN), when low, drives both outputs to a low state. All
logic inputs are V_DD tolerant and the HIP2120 has CMOS inputs
with hysteresis for superior operation in noisy environments.
The HIP2120 has hysteretic inputs with thresholds that are
proportional to V_DD. The HIP2121 has 3.3V logic/TTL compatible
inputs.
Two package options are provided. The 10 Ld 4x4 DFN package has
standard pinouts. The 9 Ld 4x4 DFN package omits pin 2 to comply
with 100V conductor spacing per IPC-2221.
Features
• 9 Ld TDFN “B” Package Compliant with 100V Conductor
Spacing Guidelines per IPC-2221
• Break-Before-Make Dead-Time Prevents Shoot-through and is
adjustable up to 220ns
• Bootstrap Supply Max Voltage to 114VDC
• Wide Supply Voltage Range (8V to 14V)
• Supply Undervoltage Protection
• CMOS Compatible Input Thresholds with Hysteresis (HIP2120)
• 1.6Ω/1Ω Typical Output Pull-up/Pull-down Resistance
• On-Chip 1Ω Bootstrap Diode
Applications
• Telecom Half-Bridge DC/DC Converters
• UPS and Inverters
• Motor Drives
• Class-D Amplifiers
• Forward Converter with Active Clamp
Related Literature
• FN7670 “HIP2122, HIP2123 100V, 2A Peak, High Frequency
Half-Bridge Driver with Delay Timers”
HALF BRIDGE
HIP2120/21
VDD
HB
PWM
HO
PWM
EN
CONTROLLER
HS
RDT
VSS
LO
EPAD
100V max
SECONDARY
CIRCUITS
FEEDBACK
WITH
ISOLATION
FIGURE 1. TYPICAL APPLICATION
200
160
140
120
100
80
60
40
20
8
16
24 32 40 48 56 64 80
R_DT (kΩ)
FIGURE 2. DEAD-TIME vs TIMING RESISTOR
December 23, 2011
1
FN7668.0
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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